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CRUISE REPORT:  P06
(Updated APR 2010)


A.  HIGHLIGHTS

                            Cruise Summary Information

                WOCE Section Designation  P06
      Expedition designation (ExpoCodes)  318M20100105
                         Chief Scientist  Ruth Curry/WHOI
                      Co-Chief Scientist  Elizabeth Douglass/WHOI
                                   Dates  5 Jan 2010 - 11 Feb 2010
                                    Ship  R/V Melville
                           Ports of call  Papeete, Tahiti -Valparaiso, Chile

                                                      32°29.83' S
                   Geographic Boundaries  145°50.5' W             71°42.26' W
                                                      32°30.26' S

                                Stations  123
            Floats and drifters deployed  0
          Moorings deployed or recovered  0

                      Chief Scientists' Contact Information:

          Ruth Curry • Senior Research Specialist • Physical Oceanography
                       Woods Hole Oceanographic Institution
               266 Woods Hole Rd. • MS# 21 • Woods Hole, Ma. 02543
         ph:  508 289-2799 • fax:  508 457-2181 • email: rcurry@whoi.edu

     Elizabeth Douglass • Postdoctoral Investigator • Physical Oceanography
                       Woods Hole Oceanographic Institution
               266 Woods Hole Rd. • MS# 29 • Woods Hole, Ma. 02543
                 ph:  508 289 2918 • email:  edouglass@whoi.edu





Summary 

A hydrographic survey consisting of CTDO (conductivity, temperature, pressure, 
oxygen), LADCP (lowered acoustic Doppler current profiler), rosette water 
samples, underway shipboard ADCP and bio-optical casts in the south eastern 
Pacific Ocean was conducted aboard the UNOLS vessel R/V Melville from January 5 
- February 11, 2010. A total of 123 CTD/LADCP/Rosette casts and 31 bio-optical 
casts were completed. CTD casts were collected to within 10 meters of the 
seafloor and up to 36 water samples were acquired at different depth levels on 
the upcast. Salinity, dissolved oxygen and nutrient samples were analyzed and 
used to calibrate the CTD conductivity and oxygen sensors for each cast. Water 
samples were also analyzed on board the ship for dissolved inorganic carbon 
(DIC), pH, total alkalinity, and transient tracers (CFCs and SF6). Additional 
water samples were collected and stored for analysis onshore: dissolved organic 
carbon (DOC), helium/tritium , 13C/14C, chromophoric dissolved organic matter 
(CDOM), chlorophyll-a, bacterial cell count, particulate organic carbon (POC), 
δ15N in nitrate, and 14C in DOC. Underway measurements included surface pCO2, 
temperature, conductivity, dissolved oxygen, fluorescence, various 
meteorological parameters and bathymetry. 


Cruise Narrative 

The R/V Melville P6 cruise represented one component of the ongoing US 
CLIVAR/CO2 Repeat Hydrography program and was conducted as a two-leg zonal 
transect of the South Pacific along 32.5° S including 250 full depth 
CTDO/LADCP/hydrographic/carbon/tracer stations, and daily bio-optical casts. The 
first leg was occupied between November 21, 2009 and Jan 2, 2010 (44 days at 
sea, 127 stations) from Brisbane, Australia to Papeete, French Polynesia, the 
second leg left Papeete on January 5, 2010 and arrived in Valparaiso, Chile on 
February 10, 2010 (37 days at sea, 123 stations). The section had been carried 
out twice before: in 1992 (R/V Knorr) as part of the US WOCE program and in 2003 
(R/V Mirai) as part of the Japanese Blue Earth Global Expedition. Both previous 
occupations were well-measured near coastal boundaries and over steep 
topography, but included large interior portions where station spacing exceeded 
70 nm. This occupation was carried out with nominal spacing of 30-35 nm across 
the entire interior with slightly longer spacing (~50 nm) for just 8 stations on 
the first leg of the cruise. 

The Leg 2 science party assembled in Tahiti to meet the ship upon its arrival in 
Papeete on Jan 2, 2010. Because the equipment and lab supplies were already set 
up for leg 1, the amount of preparation required in port for the scientific 
program was limited. Repairs to the helium/tritium van air conditioning unit, 
disabled by heavy seas on the first leg, were successfully completed dockside. 
Because of the holidays, taking on fuel and supplies in Tahiti was a slow 
process, but the Melville was at last ready to depart Papeete on 5 Jan 2010 
~1600 local. The 3.5 day steam to the first station on leg 2 allowed new science 
crew members time to get their sea legs, adjust to the ship's schedule, take 
part in safety drills and become familiar with operations in the lab and on 
deck. 

The first cast (station 128), a repeat of the last station of leg 1, went into 
the water ~ 0300 local on Saturday (9 Jan). Data dropouts ended the cast ~800 m, 
the package was recovered and the wire was reterminated. The next launch 
resulted in a full water column profile to the seafloor at just over 5000 m 
depth and the instruments performed smoothly for the remainder of the cruise. 

The primary task for Leg 2 was to complete the transect of CTD/rosette casts 
beginning near longitude 146° W and ending at the Chilean coast near 71° W. The 
CTD and other electronics mounted on the rosette frame provided measurements of 
pressure, temperature, conductivity (salinity) and dissolved oxygen, with 
additional sensors to measure light transmission and fluorometry. A lowered 
Acoustic Doppler Current Profiler (ADCP, RDI Workhorse 300) measured velocities 
relative to the rosette, from which absolute velocities were subsequently 
derived. Water samples from the 36 10-liter bottles on the rosette were analyzed 
onboard for salinity, dissolved oxygen, nutrients (nitrate, nitrite, silicate, 
phosphate), CFCs (F11, F12, SF6), dissolved inorganic carbon, total alkalinity 
and pH. Samples for shore analysis were collected for dissolved organic carbon, 
14C in inorganic and organic material, isotopes of nitrate, dissolved helium and 
3He. A continuously pumped surface seawater system measured temperature, 
salinity, dissolved oxygen, fluorescence, and pCO2. Other measurements included 
velocity from the hull-mounted ADCP, a suite of meteorological parameters, 
multibeam bathymetry and navigation data. A variety of sampling was conducted to 
quantify distributions and properties of chromophoric dissolved organic matter 
(CDOM). In addition to spectrophotometer analyses of water samples, a bio-
optical profiling cast was conducted each day as close to midday as possible 
using a package equipped with upwelling and downwelling radiometers (wavelength 
range from 305 to 665 nm), a chlorophyll fluorometer and backscatter sensor. 
Station work (deployment/recovery of CTD/rosette package and drawing water 
samples) was conducted around the clock, at an average rate of ~4 stations per 
day. The combination of reasonably good weather, well-functioning instruments 
and a remarkably strong spirit of cooperation amongst the science and ship crews 
enabled us to operate well within the projected timeline, and to complete the 
measurement program one day ahead of the total allocated for the cruise. 

Leg 2 resumed the P6 section line along 32.5° S near 146° W, in the middle of 
the Southwest Pacific Basin, where seafloor depths generally ranged 4500 - 5500 
m. For the first three weeks, the ship tracked up the western flank of the East 
Pacific Rise to its crest at ~2700 m depth near 110° W, crossing one of the 
transverse ridges that radiates northwestward from the main spine of the Rise at 
128° W. For the last two weeks, the section tracked eastward through the 
Roggeveen Basin where more moderate depths (3000 - 4000 m) prevailed, until we 
reached the Peru-Chile Trench at the eastern margin. The deepest cast of leg 2 
(~6000 m) was conducted there, and followed by a set of closely spaced stations 
tracking up the continental shelf, at 500 meter bathymetric intervals to the 
shallowest cast performed at ~750 m near 71.5° W. 

Weather conditions were generally moderate with only one gale punctuating the 
otherwise subtropical good to excellent conditions that prevailed throughout the 
cruise. No time was lost to weather. However, rough seas caused kinks in the CTD 
wire on a few stations requiring mechanical terminations (see section 1.6 of 
Hydrographic Data Report for details of CTD acquisition problems). Rough 
conditions also contributed to problems with one of two titration systems for 
analyzing total alkalinity, which caused a significant reduction in the number 
of samples that could be acquired (see section on total alkalinity for further 
details). 

Overall, the scientific equipment performed remarkably well. Full electrical 
reterminations of the CTD wire were necessary only twice over the 5 weeks of 
sampling: on the initial cast of the leg, and on station 183 following a deck 
mishap during the CTD launch. LADCP measurements predictably encountered 
difficulties in the deep waters of the basin interior characterized by a dearth 
of particulate matter (i.e., the biological desert). Scatter abundance was 
sufficiently low to affect profiles primarily below 2000 m from station 100 (~ 
166° W, Leg 1) to station 198 (~ 100° W, Leg 2). Otherwise, the LADCP functioned 
extremely well, providing full water column profiles of horizontal velocity 
currents with a vertical resolution of approximately eight meters. 

Data Quality Assessment (refers to preliminary shipboard data only) 

The overall data quality from Level 1 parameters measured shipboard during P6 
appears to be very good. There is no parameter whose overall quality of 
measurement does not appear to meet or exceed requirements and expectations. 
Details regarding calibration and quality control procedures are reported in 
section 1.6. Figures showing zonal property sections (for all of P6) and 
properties versus potential temperature are provided in Appendix B (see PDF). 

One SeaBird CTDO instrument, serial 796, was used throughout the cruise. The 
instrument was remarkably stable, and its drifts were small and easily 
corrected. Preliminary CTD conductivity data fit to the water sample data 
(expressed in salinity) shows overall agreement below ca 1500 db better than 
0.001 PSS-78, except for differences slightly greater than 0.001 at a few 
stations. Except for possibly those few stations, it is thus highly unlikely 
that any post- cruise adjustments greater than 0.001 will be made to the 
preliminary shipboard CTD salinities. A preliminary fit of the SBE-43 CTD 
dissolved oxygen sensor data to the water samples was performed for down-cast 
CTD oxygen values matched to up-cast water samples, usually on density surfaces. 
The overall fit for leg 2 is excellent with differences of order 0.5 µM kg-1. 

Shipboard analyses of bottle data also appear to be of very high quality. For 
salinity and oxygen, the consistency of the measurements - i.e. the high degree 
of overall internal precision achieved during the cruise. It is unlikely that 
any significant post-cruise changes to the bottle salinity or bottle oxygen data 
values will be made, though it is likely that some quality code changes will 
take place during final post-cruise data processing. 

Much the same can be said about the nutrient data, which appear to be of very 
high quality, or at the very least, very high internal consistency. When 
compared to 2003 occupation of P6, the phosphate-potential temperature curves 
for the deep ocean exhibit some offsets in specific longitude bands (see 
Appendix B). Ascertaining the cause of these shifts will require further 
investigation in the post-cruise data assessment phase. The silicate and nitrate 
data are clearly ready for scientific work, and few, if any, significant changes 
are expected at this time, although, as with any of the bottle data, quality 
code changes associated with some data values may change. 


Introduction 

A sea-going science team gathered from 10 oceanographic institutions 
participated on the cruise. The programs and PIs, and the shipboard science team 
and their responsibilities, are listed below. 


Principal Programs Of Clivar P06e 

Program                   Affiliation  PI               email 
------------------------  -----------  ---------------  -----------------------------
CTDO/Rosette, Nutrients,  UCSD/SIO     James H. Swift   jswift@ucsd.edu 
O2, Sal, Data Processing  
CO2-Alkalinity, pH        UM/RSMAS     Frank Millero    fmillero@rsmas.miami.edu 
CO2-DIC/Underway pCO2     NOAA/AOML    Rik Wanninkhof   Rik.Wanninkhof@noaa.gov 
CFCs                      U. Wash.     Mark Warner      mwarner@ocean.washi ngton.edu    
Helium/Tritium            WHOI         William Jenkins  wjenkins@whoi.edu 
DOC/TDN                   UM/RSMAS     Craig Carlson    carlson@lifesci.ucs b.edu  
13C/14C                   WHOI         Ann McNichol     amcnichol@whoi.edu 
                          Princeton    Robert Key       key@Princeton.EDU 
ADCP/LADCP                U. Hawaii    Eric Firing      efiring@soest.hawai i.edu 
Transmissometer           TAMU         Wilf Gardner     wgardner@tamu.edu 
CDOM                      UCSB         Norm Nelson      norm@icess.ucsb.edu 
                          UCSB         Dave Siegel      siegel@lifesci.ucsb.edu 
Isotopic Composition      U. Mass.     Mark Altabet     maltabet@umassd.edu 
  of Nitrate
Isotopic Composition      NOAA         Lauren Juranek   Laurie.Juranek@noaa.gov 
  of O2 and Argon
C14 in DOC                UCI          Ellen Druffel    edruffel@uci.edu 



Shipboard Scientific Personnel On Clivar P06e 

Name                  Affiliation   Shipboard Duties            Shore Email 
--------------------  ------------  --------------------------  ----------------------------
Ruth Curry            WHOI          Chief Scientist             rcurry@whoi.edu 
Liz Douglass          WHOI          Co-Chief Scientist          edouglass@whoi.edu 
               
Andrew Bird           URI           CTD watch stander           andrew_bird@mail.uri.edu 
Angie Pendergrass     UW            CTD watch stander           apgrass@u.washington.edu 
Hannah Traggis        UNH           CTD watch stander           hmt71@mac.com 
Sam Wilson            UCLA          CTD watch stander           samjwil@gmail.com 
               
Kristin Sanborn       SIO/STS/ODF   Data, Group Leader          ksanborn@ucsd.edu 
Parisa Nahavandi      SIO/STS/ODF   Data, CTD                   pnahavandi@ucsd.edu 
Melissa-Truth         SIO/STS/ODF   Nutrients                   melissa-miller@ucsd.edu 
  Miller  
Dan Schuller          SIO/STS/ODF   Nutrients, Chemist Lead     dschuller@ucsd.edu 
Ryan Engle            SIO/STS/RT-E  Salinity, Deck              rjengle@ucsd.edu 
Robert Lawrence       SIO/STS/RT-E  Electronics, Deck Lead,     rpalomares@ucsd.edu 
Palomares III                         Sal.
Robert Lee Thombley   SIO/STS/RT-E  Electronics, Deck,          rthomble@ucsd.edu 
  IV                                  Oxygen
Alejandro Quintero    SIO/STS/ODF   Oxygen, Deck                a1quintero@ucsd.edu
               
Drew Cole             SIO/STS/RT-M  Research Technician-Marine  restech@ucsd.edu 
Frank Delahoyde       SIO/STS/CR    Computer Technician         fdelahoyde@ucsd.edu 
               
Thomas DeCloedt       U. Hawaii     ADCP/LADCP                  decloedt@hawaii.edu 
               
Mark Warner           UW            CFC                         mwarner@ocean.washington.edu 
Wendi Ruef            UW            CFC                         wruef@u.washington.edu 
Carmen Hill-Lindsay   UCLA          CFC student                 carmenh@atmos.ucla.edu 
               
Robert Castle         AOML          DIC/pCO2underway            Robert.Castle@noaa.gov 
Lauren Juranek        NOAA          DIC/O2 Isotopes             Laurie.Juranek@noaa.gov 
               
Guiseppe Manfredi     RSMAS/UM      TALK/pH                     gmanfredi@unime.it 
Jason Waters          RSMAS/UM      TALK/pH                     jwaters@rsmas.miami.edu 
Stacy Brown           RSMAS/UM      TALK/pH                     sbrown1031@gmail.com 
               
Anna James            UCSB          DOC                         anna.james.k@gmail.com 
               
Sheila Griffin        UCI           C14                         sgriffin@uci.edu 
               
Norm Nelson           UCSB          CDOM                        norm@icess.ucsb.edu 
KG Fairbarn           UCSB          CDOM                        kgdivekg@hotmail.com 
               
Pete Landry           WHOI          He/tritium                  plandry@whoi.edu 



B.  Description of Measurement Techniques 


1.  CTD/Hydrographic Measurements Program 
      PI: James H. Swift
      On Board Team:
        Oceanographic Data Facility, Computing Resources and Research Technicians
        Shipboard Technical Support, Scripps Institution of Oceanography 
        La Jolla, CA 92093-0214 


A total of 123 Rosette/CTD/LADCP casts were made at 123 stations. Most casts 
were lowered to within 10m of the bottom. 

Hydrographic measurements consisted of salinity, dissolved oxygen and nutrient 
water samples taken from each Rosette cast. Pressure, temperature, 
conductivity/salinity, dissolved oxygen, transmissometer and fluorometer data 
were recorded from CTD profiles. Current velocities were measured by the 
downward-facing LADCP. The distribution of samples is shown in figure 1.0. 


Figure 1.0:  P06E Sample distribution, stations 128-250.



1.1.  Water Sampling Package 

Rosette/CTD/LADCP casts were performed with a package consisting of a 36-bottle 
rosette frame (SIO/STS), a 36-place carousel (SBE32) and 36 10.0L Bullister 
bottles (SIO/STS) with an absolute volume of 10.4L. Underwater electronic 
components consisted of a Sea-Bird Electronics SBE9plus CTD with dual pumps 
(SBE5), dual temperature (SBE3plus), reference temperature (SBE35RT) dual 
conductivity (SBE4C), dissolved oxygen (SBE43), transmissometer (Wetlabs), 
fluorometer (Wetlabs CDOM), altimeter (Simrad) and LADCP (RDI). 

The CTD was mounted Vertically in an SBE CTD cage attached to the bottom of the 
rosette frame and located to one side of the carousel. The SBE4C conductivity, 
SBE3plus temperature and SBE43 Dissolved oxygen sensors and their respective 
pumps and tubing were mounted Vertically in the CTD cage, as recommended by SBE. 
Pump exhausts were attached to the CTD cage on the side opposite from the 
sensors and directed downward. The transmissometer was mounted horizontally, and 
the fluorometer was mounted Vertically near the bottom of the rosette frame. The 
altimeter was mounted on the inside of the bottom frame ring. The 150 KHz 
downward-looking Broadband LADCP (RDI) was mounted Vertically on one side of the 
frame between the bottles and the CTD. Its battery pack was located on the 
opposite side of the frame, mounted on the bottom of the frame. Table 1.1.0 
shows height of the sensors referenced to the bottom of the frame. 


Table 1.1.0:  Heights referenced to bottom of rosette frame

                    Instrument                  Height in cm 
                    --------------------------  ------------
                    Temperature sensors               11
                    SBE35                             11
                    Altimeter                          4
                    Transmissometer                    8
                    CDOM Fluorometer                   7
                    Pressure Sensor                   28
                    Inner bottle midline             112
                    Outer bottle midline             119
                    BB LADCP XDCR Face midline        11
                    Zero tape                        180


The rosette system was suspended from a UNOLS-standard three-conductor 0.322" 
electro-mechanical sea cable. The sea cable was terminated at the beginning of 
P06E. The R/V Melville'sDESH-6 winch was used for all casts. 

The deck watch prepared the rosette 10-30 minutes prior to each cast. The 
bottles were cocked and all valves, vents and lanyards were checked for proper 
orientation. Once stopped on station, the rosette was moved out from the aft 
hanger to the deployment location under the A-frame using an air-powered cart 
and tracks. The CTD was powered-up and the data acquisition system started from 
the computer lab. The rosette was unstrapped from the air-powered cart. Tag 
lines were threaded through the rosette frame and syringes were removed from CTD 
intake ports. The winch operator was directed by the deck watch leader to raise 
the package. The A-frame and rosette were extended outboard and the package was 
quickly lowered into the water. Tag lines were removed and the package was 
lowered to 10 meters, until the console operator determined that the sensor 
pumps had turned on and the sensors were stable. The winch operator was then 
directed to bring the package back to the surface, at which time the wireout 
reading required re-zeroing before descent. Re-zeroing required that the winch 
operator walk out of his shack, so on most casts the deck watch zero'd the 
reading, at times it was done by the winch operator, and at times it was not 
done at all. 

Most rosette casts were lowered to within 10 meters of the bottom, using the 
altimeter, winch wireout, CTD depth and echosounder depth to determine the 
distance. 

For each up cast, the winch operator was directed to stop the winch at up to 36 
predetermined sampling depths. These standard depths were staggered every 
station using 3 sampling schemes. To insure package shed wake had dissipated, 
the CTD console operator waited 30 seconds prior to tripping sample bottles. An 
additional 10 seconds elapsed before moving to the next consecutive trip depth, 
to allow the SBE35RTtime to take its readings. The deck watch leader directed 
the package to the surface for the last bottle trip. 

Recovering the package at the end of the deployment was essentially the reverse 
of launching, with the additional use of poles and snap-hooks to attach tag 
lines. The rosette was secured on the cart and moved into the aft hanger for 
sampling. The bottles and rosette were examined before samples were taken, and 
anything unusual was noted on the sample log. 

Each bottle on the rosette had a unique serial number, independent of the bottle 
position on the rosette. Sampling for specific programs was outlined on sample 
log sheets prior to cast recovery or at the time of collection. 

Routine CTD maintenance included soaking the conductivity and oxygen sensors in 
fresh water between casts to maintain sensor stability, and putting dilute 1% 
Triton-X solution through the conductivity sensors to eliminate any accumulating 
bio-films. Rosette maintenance was performed on a regular basis. Valves and o-
rings were inspected for leaks. The rosette, CTD and carousel were rinsed with 
fresh water as part of the routine maintenance. 


1.2.  UNDERWATER ELECTRONICS 

The SBE9plus CTD supplied a standard SBE-format data stream at a data rate of 24 
frames/second. The sensors and instruments used during CLIVAR P06E are listed 
below. 


Table 1.2.0:  CLIVAR P06E Rosette Underwater Electronics. 

Instrument/Sensor            Mfr./Model                 Serial Number  A/D Channel  Stations Used 
---------------------------  -------------------------  -------------  -----------  -------------
Carousel Water Sampler       Sea-Bird SBE32 (36-Pl.)    3213290-0113       n/a         128-250 
CTD                          Sea-Bird SBE9plus          796                n/a         128-250 
Pressure                     Paroscientific Digiquartz  98627              n/a         128-250 
Primary Temperature (T1)     Sea-Bird SBE3plus          03P-4907           n/a         128-250 
Primary Conductivity (C1)    Sea-Bird SBE4C             04-3369            n/a         128-250 
Dissolved Oxygen             Sea-Bird SBE43             43-1508          Aux4/V6       128-250 
Primary Pump                 Sea-Bird SBE5T             05-4160            n/a         128-250 
Secondary Temperature (T2)   Sea-Bird SBE3plus          03P-5046           n/a         128-250 
Secondary Conductivity (C2)  Sea-Bird SBE4C             04-3578            n/a         128-250 
Secondary Pump               Sea-Bird SBE5T             05-5124            n/a         128-250 
Transmissometer              WETLabs C-STAR             CST-1115DR       Aux2/V2       128-250 
Fluorometer                  WETLabs CDOM               FLCDRTD-428      Aux1/V0       128-250 
Altimeter                    Simrad 807                 9711091          Aux3/V4       128-250 
Reference Temperature        Sea-Bird SBE35             35-0035            n/a         128-250 
LADCP                        RDI WHM300-I-UG50          13330              n/a         128-250 
Deck Unit (in lab)           Sea-Bird SBE11             11P31807-0654      n/a         128-250


An SBE35RTreference temperature sensor was connected to the SBE32 carousel and 
recorded a temperature for each bottle closure. These temperatures were used as 
additional CTD calibration checks. The SBE35RT was utilized per the 
manufacturer's specifications and instructions, as described on their website, 
www.seabirdelectronics.com. 


The SBE9plus CTD was connected to the SBE32 36-place carousel providing for 
single-conductor sea cable operation. The sea cable armor was used for ground 
(return). Power to the SBE9plus CTD (and sensors), SBE32 carousel and Simrad 807 
altimeter was provided through the sea cable from the SBE11plus deck unit in the 
main lab. 



1.3.  Navigation and Bathymetry Data Acquisition 

Navigation data were acquired at 1-second intervals from the ship's Furuno GP150 
GPS receiver by a Linux system beginning January 5, 2010. 

Bathymetric data were logged from both the Knudsen 12KHz single beam echosounder 
and the Kongsberg EM122 multibeam echosounder systems. 

The reported bottom depths associated with rosette casts were recorded on the 
Console Logs during deployments. The Kongsberg EM122 center beam depths were 
typically used. 


1.4.  CTD Data Acquisition and Rosette Operation 

The CTD data acquisition system consisted of an SBE-11plus (V2) deck unit and 
three networked generic PC workstations running CentOS-5.4 Linux. Each PC 
workstation was configured with a color graphics display, keyboard, trackball 
and DVD+RW drive. One system had a Comtrol Rocketport PCI multiple port serial 
controller providing 8 additional RS-232 ports. The systems were interconnected 
through the ship's network. These systems were available for real-time 
operational and CTD data displays, and provided for CTD and hydrographic data 
management. 

One of the workstations was designated the CTD console and was connected to the 
CTD deck unit via RS-232. The CTD console provided an interface and operational 
displays for controlling and monitoring a CTD deployment and closing bottles on 
the rosette. Another of the workstations was designated the website and database 
server and maintained the hydrographic database for P06E. Redundant backups were 
managed automatically. 

CTD deployments were initiated by the console watch after the ship had stopped 
on station. The acquisition program was started and the deck unit turned on at 
least 3 minutes prior to package deployment. The watch maintained a console 
operations log containing a description of each deployment, record of every 
attempt to close a bottle and any relevant comments. The deployment and 
acquisition software presented a short dialog instructing the operator to turn 
on the deck unit, to examine the on- screen CTD data displays and to notify the 
deck watch that this was accomplished. 

Once the deck watch had deployed the rosette, the winch operator lowered it to 
10 meters. The CTD sensor pumps were configured with a 5-second startup delay 
after detecting seawater conductivities. The console operator checked the CTD 
data for proper sensor operation and waited for sensors to stabilize, then 
instructed the winch operator to bring the package to the surface and descend to 
a specified target depth (wire-out). The profiling rate was no more than 30m/min 
to 50m, no more than 45m/min to 200m and no more than 60m/min deeper than 200m, 
depending on sea cable tension and sea state. 

The progress of the deployment and CTD data quality were monitored through 
interactive graphics and operational displays. Bottle trip locations were 
transcribed onto the console and sample logs. The sample log was used later as 
an inventor y of samples drawn from the bottles. The altimeter channel, CTD 
depth, winch wire-out and bathymetric depth were all monitored to determine the 
distance of the package from the bottom, allowing a safe approach to 8-10 
meters. 

Bottles were closed on the up cast by operating an on-screen control. The winch 
operator was given a command to slowto20m/min when 10m from the target desired 
depth, the console operator gave the command to stop just before the intended 
depth. Bottles were tripped 30-40 seconds after stopping to allow the rosette 
wake to dissipate and the bottles to flush. The winch operator was instructed to 
proceed to the next bottle stop at least 10 seconds after closing bottles to 
ensure that stable CTD data were associated with the trip and to allow the 
SBE35RT temperature sensor to make measurement. 

When the last bottle was closed, the console operator directed the winch 
operator to have the deck watch bring the rosette to just below the surface. 
After the 30 second flushing period and the 10 second time for the 
SBE35RTtostabilizethe package was brought on deck. Once the rosette was on deck, 
the console operator terminated the data acquisition, turned off the deck unit 
and assisted with rosette sampling. 


1.5.  CTD Data Processing 

Shipboard CTD data processing was performed automatically during each 
Rosette/CTD/LADCP deployment using SIO/ODF CTD processing software. 

Processing was performed during data acquisition for Rosette/CTD/LADCP 
deployments. The raw CTD data were converted to engineering units, filtered, 
response-corrected, calibrated and decimated to a more manageable 0.5-second 
time series. The laboratory calibrations for pressure, temperature and 
conductivity were applied at this time. The 0.5-second time series data were 
used for real-time graphics during deployments, and were the source for CTD 
pressure and temperature associated with each rosette bottle. Both the raw 
24Hzdata and the 0.5-second time series were stored for subsequent processing. 
during the deployment, the data were backed up to another Linux workstation. 

At the completion of a deployment a sequence of processing steps were performed 
automatically. The 0.5-second time series data were checked for consistency, 
clean sensor response and calibration shifts. A 2-decibar pressure series was 
then generated from the down cast. Both the 2-decibar pressure series and 0.5-
second time series data were made available for downloading, plotting and 
reporting on the shipboard cruise website. 

Rosette/CTD/LADCP data were routinely examined for sensor problems, calibration 
shifts and deployment or operational problems. The primary and secondary 
temperature sensors (SBE3plus)were compared to each other and to the SBE35 
temperature sensor. CTD conductivity sensors (SBE4C) were compared to each 
other, then calibrated by examining differences between CTD and check sample 
conductivity values. The CTD dissolved oxygen sensor data were calibrated to 
check sample data. Additional salinity and O2 comparisons were made with respect 
to isopycnal surfaces between down and up casts as well as with adjacent 
deployments. Vertical sections were made of the various properties derived from 
sensor data and checked for consistency. 

A total of 123 casts were made using the 36-place CTD/LADCP rosette. 

The primary temperature and conductivity sensors were used for reported CTD 
temperatures and conductivities. The secondary temperature and conductivity 
sensors were used as calibration checks. 


1.6.  CTD Acquisition And Data Processing Problems 

At the beginning of the expedition, Station 128, the CTD encountered several 
missed frames on the way down. The system was monitored to ~800m as the data 
loss was getting progressively worse. The package was brought on board and a new 
termination was performed. The subsequent cast performed properly. Mechanical 
terminations were also performed prior to casts 139/2, 140/1, 142/1 and again on 
222/1, 223/1, and 226/1, due to bad weather. 

Amid preparation for deployment on station 183, the winch operator became 
distracted by the lab making communication on the squalk box while the winch was 
taking up slack wire onto the drum. The rosette was pulled off the deck causing 
the tension of the wire to exceed 9641 pounds at which time the CTD cable parted 
at exit of the level wind. The package fell approximately 1m to the deck. The 
rosette was strapped to the cart with two tag lines attached to the cleats on 
the A-Frame. The lifting broke weld tabs on the aft cart track, and the cart 
exited tracks. The straps held the rosette firmly to the cart. The tag lines 
took the full strain and held until wire parted. One crash bar was severely 
bent, and the top ring and the radial support bent downward. No personnel were 
injured. The Electronic Technician (ET) spooled out 100m of wire and performed 
an electrical retermination. The ET also replaced the bent crash bar with one 
from the spare rosette, and straightened the horizontal ring and radial support 
arm. These were removed, straightened, and reinstalled with washers and bolts. 
The axle bolts for cartwheels became bent from jamming on the track lip. One 
track wheel wound up with a distorted edge, which the ET cleaned and 
straightened. CTD sensors were checked and seemed undamaged on deck, but a time- 
variant drift in the secondary temperature and conductivity sensors would be 
noted and addressed as of Station 189. After recovering cast 183/01, Niskin 
bottle 3 was found with spigot broken off; it's unclear if this happened during 
deployment or recovery. 

During cast 1 of station 240, a jellyfish was sucked into the primary pump 
circuit, which caused C1 offset for that cast. T1 and O2 weren't affected. T2/C2 
were used as primary data. As a result, the top 48 db of secondary conductivity 
was noisy and flagged as such. The primary conductivity sensor was then cleaned 
with a Kim-Wipe, which caused a C1 offset relative to C2with time. 

During the first cast of station 243, console operator and data processor noted 
a 4 unit difference between primary and secondary conductivity sensors, and a 2 
degree Celsius difference between T1/T2. Suspecting another jellyfish, the cast 
was aborted and recovered. Sensors were clean, but flushed with Triton-X. The 
second cast revealed much smaller offsets between primary and secondary 
circuits, which maintained through the leg. 

LADCP battery was changed after station 190 as it would not charge for the few 
preceding stations. Because battery charging issues continued, the LADCP 
wyecable was changed after station 193, which resolved said problems. 

Fluorometer data displayed data offset between legs 1 and 2, possibly due to a 
change in its physical location on the rosette. 

Multiple problems were encountered throughout the leg with the LCI-90 display 
for the winch. The LCI-90 apparently overheated, causing it to blank out, 
typically while the winch was stopped for bottle trips. Most casts required 
multiple resets, which involved manually flipping the breaker to the winch (in 
the main lab) off and on. Occasionally the wireout reading shifted or rezeroed 
during these breaker trips, causing negative readings or offsets for a 
substantial part of the up-casts. 


1.7.  CTD Sensor Laboratory Calibrations 

Laboratory calibrations of the CTD pressure, temperature, conductivity and 
dissolved oxygen sensors were performed prior to CLIVAR P06E. The calibration 
dates are listed in table 1.7.0. 


Table 1.7.0:  CLIVAR P06E CTD sensor Laboratory calibrations. 

                                                Calibration   Calibration 
Sensor                                S/N           Date       Facility 
------------------------------------  --------  ------------  -----------
Paroscientific Digiquartz Pressure    98627     10 July 2009    SIO/STS 
Sea-Bird SBE3plus T1 Temperature      03P-4907   2 July 2009    SIO/STS 
Sea-Bird SBE3plus T2 Temperature      03P-5046   6 July 2009    SIO/STS 
Sea-Bird SBE4C C1a Conductivity       04-3369   16 June 2009    SBE 
Sea-Bird SBE4C C1b Conductivity       04-3430   16 June 2009    SBE 
Sea-Bird SBE4C C2 Conductivity        04-3578   16 June 2009    SBE 
Sea-Bird SBE43 Dissolved Oxygen       43-1508    1 July 2009    SBE 
Sea-Bird SBE35 Reference Temperature  35-0035   20 June 2009    SBE 


ODF typically calibrates sensors about two months before a CLIVAR expedition. 
However, the P6 sensors had an additional shelf life due to the 2-month cruise 
delay for P06: the sensors had been shipped in anticipation of an early 
September start date. 


1.8.  CTD Shipboard Calibration Procedures 

CTD #796 was used for all Rosette/CTD/LADCP casts during P06E. The CTD was 
deployed with all sensors and pumps aligned Vertically, as recommended by SBE. 
The primary temperature sensor (T1/03P-4907) and conductivity sensors (C1/04-
3430) were used for all reported CTD data on all casts (128/01-250/01) excepting 
240/01 where the secondary sensors were used. 

The SBE35RT Reference Temperature sensor (S/N 3528706-0035) provided an 
independent calibration check for T1 and T2. In-situ salinity and dissolved O2 
check samples collected during each cast were used to calibrate the conductivity 
and dissolved O2 sensors. 

1.8.1.  CTD Pressure 

The Paroscientific Digiquartz pressure transducer (S/N 98627) was calibrated in 
July 2009 at the STS/ODF Calibration Facility. The supplied calibration 
coefficients were used to convert frequencies to pressure. A calibration 
correction slope and offset was then applied. The residual pressure offsets (the 
difference between the last and first submerged pressures) varied from -0.4 to 
+0.0 db. No additional adjustments were made to calculated pressures. 

1.8.2.  CTD Temperature 

The same primary (T1/03P-4907) and secondary(T2/03P-5046) temperature sensors 
were used during all Leg 2 casts and were the same sensors used on Leg 1. 
Calibration coefficients derived from the precruise calibrations, plus shipboard 
temperature corrections determined during the cruise, were applied to raw 
primary and secondary sensor data during each cast. 

An SBE35RT was used as a tertiary temperature check. It was located equidistant 
between T1 and T2 with the sensor aligned in the same plane as the T1 and T2 
sensors. The SBE35Rt is an internally recording temperature sensor that operates 
in response to a signal sent by the SBE32 carousel for each bottle closure. 
According to the manufacturer's specifications, the typical stability is 
0.001°C/year. The SBE35RT on P06E was set to internally average over an 8 second 
period. 

Two independent metrics of calibration accuracy were examined. At each bottle 
closure, the primary and secondary temperatures were compared with each other 
and with the SBE35RTtemperatures. 

P06E Leg 2 temperature corrections were not substantially different from the 
corrections determined during the first leg. A single correction was used for T1 
and another for T2. T2 additionally exhibited a time-dependent sensor drift 
which was corrected over the course of the cruise. The corrections made to CTD 
temperatures had the form: 

TITS90 = T + aP2 + bP + cT2 + dT + offset

Residual temperature differences after correction are shown in figures 1.8.2.0 
through 1.8.2.5. 

The 95% confidence limits are ±0.00087°C for the mean deep T1 residuals and 
±0.00065 for the mean deep T1 and T2 differences.


Figure 1.8.2.0:  T1-T2 by station.
Figure 1.8.2.1:  SBE35RT-T1 by station.
Figure 1.8.2.2:  SBE35RT-T2 by station.
Figure 1.8.2.3:  T1-T2 by pressure.
Figure 1.8.2.4:  SBE35RT-T1 by station (P ≥ 2000.0db).
Figure 1.8.2.5:  T1-T2 by station (P ≥ 2000.0db).



1.8.3.  CTD Conductivity 

The same primary (C1/04-3430) and secondary (C2/04-3578) conductivity sensors 
were used throughout Leg 2 and were the same sensors used for Leg 1. Shipboard 
calibration corrections were derived from salinity check samples and from sensor 
intercomparisons. 

Two independent metrics of calibration accuracy were examined. For each rosette 
sample, the primary and secondary conductivities were compared with each other 
and with the bottle conductivity. The bottle conductivity was calculated from 
bottle salinity using CTD pressure and temperature. 

The differences between primary and secondary temperature sensors were used as 
filtering criteria to reduce the contamination of comparisons by rosette package 
wake. The coherence of this relationship is shown in figure 1.8.3.0.


Figure 1.8.3.0:  Coherence of conductivity differences as a function of 
                 temperature differences.


Uncorrected conductivity comparisons are shown in figures 1.8.3.1 through 1.8.3.3. 


Figure 1.8.3.1:  Uncorrected C1 − C2 by station.
Figure 1.8.3.2:  Uncorrected CBottle − C1 by station.
Figure 1.8.3.3:  Uncorrected CBottle − C2 by station.


It was determined that both primary and secondary sensors drifted with time. C1 
exhibited a small linear drift from cast 128/01 to 239/01, and then appeared to 
stabilize for the rest of the cruise. C2 exhibited 3 drift groupings: 128/01-
188/01, 189/02-191/01 and 192/01-250/01. After correcting for drift, primary and 
secondary response corrections were derived from sensor and check sample 
comparisons. Two corrections were used for C1: one for casts 128/01-239/01 and 
one for casts 241/01-250/01. A single correction was used for C2 throughout the 
leg. 

C2 was used for reported CTD conductivities on cast 240/01 as C1 had become 
fouled by biofilm. C1 was cleaned with TritonX and a Kim wipe prior to cast 
241/01, changing its calibration. 

The corrections made to CTD conductivities had the form: 

Ccor  = C + aP2 + bP + cC2 + dC + offset

The residual differences after correction are shown in figures 1.8.3.4 through 1.8.3.7.


Figure 1.8.3.4:  Corrected C1 − C2 by station.
Figure 1.8.3.5:  Corrected CBottle − C1 by station.
Figure 1.8.3.6:  Corrected C1 − C2 by pressure.
Figure 1.8.3.7:  Corrected CBottle − C1 by pressure.


Figures 1.8.3.8 and 1.8.3.9 represent estimates of the CTD salinity accuracy of 
CLIVAR P06E. The 95% confidence limits are ±0.00102 PSU relative to deep bottle 
salinities, and ±0.00151 PSU relative to all bottle salinities, excluding 
samples taken in high thermal gradients. 


Figure 1.8.3.8:  Deep salinity residuals by station (Pressure>2000db).
Figure 1.8.3.9:  Salinity residuals by station.



1.8.4.  CTD Dissolved Oxygen 

A single SBE43 dissolved O2 sensor (DO/43-1508) was used during this leg. The 
sensor was plumbed into the primary T1/C1 pump circuit after C1. 

The DO sensor was calibrated to dissolved O2 check samples matching the down 
cast CTD data to the up cast trip locations on isopycnal surfaces. CTD dissolved 
O2 was then calculated using a DO sensor response model and minimizing the 
residual differences from the check samples. A non-linear least squares fitting 
procedure was used to minimize the residuals and to determine sensor model 
coefficients. 

The time constants for the lagged terms in the model were determined for the 
sensor during the first leg. These time constants are sensor-specific but 
applicable to an entire cruise. Casts were fit individually to check sample 
data. Consecutive casts were checked on plots of Theta vs. O2 to check for 
consistency. 

Standard and blank values for check sample oxygen titration data were smoothed, 
and the oxygen values recalculated, prior to the final fitting of CTD oxygen. 
After smoothing, changes to the preliminary fits were deemed unnecessary. 

CTD dissolved O2 residuals are shown in figures 1.8.4.0 - 1.8.4.2. 


Figure 1.8.4.0:  O2 residuals by station  (-0.01°C ≤T1-T2≤0.01°C).
Figure 1.8.4.1:  O2 residuals by pressure (-0.01°C ≤T1-T2≤0.01°C).
Figure 1.8.4.2:  O2 residuals by station  (Pressure>2000db).


The standard deviations of 2.05 µmol/kg for all oxygens and 0.49 µmol/kg for 
deep oxygens are only presented as general indicators of goodness of fit. ODF 
makes no claims regarding the precision or accuracy of CTD dissolved O2 data. 

The general form of the ODF DO sensor response model equation for Clark cells 
follows Brown and Morrison [Brow78], and Millard [Mill82], [Owen85]. ODF models 
DO sensor secondary responses with lagged CTD data. In-situ pressure and 
temperature are filtered to match the sensor responses. Time constants for the 
pressure response τp , a slow (τTf) and fast (τTs) thermal response, package 
velocity (tdP), thermal diffusion (τdT)and pressure hysteresis (τh) are fitting 
parameters. Once determined for a given sensor, these time constants typically 
remain constant for a cruise. The thermal diffusion term is derived by low-pass 
filtering the difference between the fast response (Ts) and slow response (Tl) 
temperatures. This term is intended to correct non-linearities in sensor 
response introduced by inappropriate analog thermal compensation. Package 
velocity is approximated by low-pass filtering 1st-order pressure differences, 
and is intended to correct flow-dependent response. Dissolved O2 concentration 
is then calculated: 


                    Ph                                           dOc      dP
                (C2----)                      (C4Tl+C5Ts+C7Pl+C6 --- + C8 -- + C9dT) 
O2ml/l = [C1VDOθ   5000  + C3] • fsat(T,P) • θ                   dt       dt            (1.8.4.0)
 

where: 

      O2ml/l     Dissolved O2 concentration in ml/l; 
      VDO        Raw sensor output; 
      C1         Sensor slope 
      C2         Hysteresis response coefficient 
      C3         Sensor offset 
      fsat(T,P)  O2 saturation at T, P (ml/l); 
      T          insitu temperature (°C); 
      P          insitu pressure (decibars); 
      Ph         Low-pass filtered hysteresis pressure (decibars); 
      Tl         Long-response low-pass filtered temperature (°C); 
      Ts         Short-response low-pass filtered temperature (°C); 
      Pl         Low-pass filtered pressure (decibars); 

      dOc 
      ---        Sensor current gradient (mamps/sec);
      dt 
      
      dP 
      --         Filtered package velocity (db/sec); 
      dt 
      
      dT         low-pass filtered thermal diffusion estimate (Ts -Tl). 
      C4 - C8    Response coefficients. 
      
      

1.9.  Bottle Sampling 

At the end of each rosette deployment water samples were drawn from the bottles 
in the following order: 

      • CFC-11, CFC-12, SF6 
      • 3He 
      • O2 
      • O18 - O2, Argon 
      • Dissolved Inorganic Carbon (DIC) 
      • pH 
      • Total Alkalinity 
      • 13C and 14C 
      • Dissolved Organic Carbon (DOC) and Total Dissolved Nitrogen (TDN) 
      • Tritium 
      • Nutrients 
      • Chromophoric Dissolved Organic Matter (CDOM) 
      • Chlorophyll a 
      • Bacterial Cell Count 
      • Particulate Organic Carbon (POC) 
      • Del 15N of NO3 
      • Salinity 
      • Millero Density 

The correspondence between individual sample containers and the rosette bottle 
position (1-36) from which the sample was drawn was recorded on the sample log 
for the cast. This log also included any comments or anomalous conditions noted 
about the rosette and bottles. One member of the sampling team was designated 
the sample cop, whose sole responsibility was to maintain this log and insure 
that sampling progressed in the proper drawing order. 

Normal sampling practice included opening the drain valve and then the air vent 
on the bottle, indicating an air leak if water escaped. This observation 
together with other diagnostic comments (e. g., "lanyard caught in lid", "valve 
left open") that might later prove useful in determining sample integrity were 
routinely noted on the sample log. Drawing oxygen samples also involved taking 
the sample draw temperature from the bottle. The temperature was noted on the 
sample log and was sometimes useful in determining leaking or mis-tripped 
bottles. 

Once individual samples had been drawn and properly prepared, they were 
distributed for analysis. Oxygen, nutrient and salinity analyses were performed 
on computer-assisted (PC) analytical equipment networked to the data processing 
computer for centralized data management. 


1.10.  Bottle Data Processing 

Water samples collected and properties analyzed shipboard were centrally managed 
in a relational database (PostgreSQL 8.1.18) running on a Linux system. A web 
service (OpenACS 5.3.2 and AOL Server 4.5.1) front-end provided ship-wide access 
to CTD and water sample data. Web-based facilities included on-demand arbitrary 
property-property plots and Vertical sections as well as data uploads and 
downloads. 

The sample log (and any diagnostic comments) was entered into the database once 
sampling was completed. Quality flags associated with sampled properties were 
set to indicate that the property had been sampled, and sample container 
identifications were noted where applicable (e. g., oxygen flask number). 

Analytical results were provided on a regular basis by the various analytical 
groups and incorporated into the database. These results included a quality code 
associated with each measured value and followed the coding scheme developed for 
the World Ocean Circulation Experiment Hydrographic Programme (WHP) [Joyc94]. 

Table 1.10.0 shows the number of samples drawn and the number of times each WHP 
sample quality flag was assigned for each basic hydrographic property: 


Table 1.10.0:  Frequency of WHP quality flag assignments. 

                      Rosette Samples Stations 128 - 250
         -----------------------------------------------------------
                   | Reported |          WHP Quality Codes
                   |  levels  | 1     2       3     4    5    7    9
         -----------------------------------------------------------
         Bottle    |   4368   | 0    4350     3    12    0    0    3
         CTD Salt  |   4368   | 0    4346    14     8    0    0    0
         CTD Oxy   |   4350   | 0    4343     5     2    0    0   18
         Salinity  |   4361   | 0    4295    22    44    1    0    6
         Oxygen    |   4352   | 0    4292    30    30   11    0    5
         Silicate  |   4352   | 0    4337     3    12   11    0    5
         Nitrate   |   4361   | 0    4302    47    12    2    0    5
         Nitrite   |   4361   | 0    4348     0    13    2    0    5
         Phosphate |   4361   | 0    4342     6    13    2    0    5


Additionally, data investigation comments are presented in Appendix A. Various 
consistency checks and detailed examination of the data continued throughout the 
cruise. 



1.11.  Salinity 

Equipment and Techniques 

A single Guildline Autosal 8400B salinometer (S/N 69-180) located in Melville's 
Photolab, was used for all salinity measurements. This salinometer had been 
modified to include a communication interface for computer-aided measurement, a 
higher capacity pump and three temperature sensors. Two of these sensors were 
used to measure air and bath temperatures. The third was used to check sample 
bottle temperature. 

Samples were analyzed after they had equilibrated to Laboratory temperature, 
usually within 12-29 hours after collection. The salinometer was standardized 
for each group of analyses (usually 1-2 casts, up to ~36 samples) using at least 
two fresh vials of standard seawater per group. 

Salinometer measurements were aided by a computer using LabVIEW software 
developed by SIO/STS. The software maintained an Autosal log of each salinometer 
run which included salinometer settings and air and bath temperatures. The air 
temperature was displayed and monitored via a 24-hour strip-char t in order to 
observe cyclical changes. The program also guided the operator through the 
standardization procedure and making sample measurements. The analyst was 
prompted to change samples and flush the cells between readings. 

Special standardization procedures included flushing the cell at least 4 times 
with a fresh vial of Standard Seawater (SSW), setting the flow rate as low as 
possible during the last fill, and monitoring the STD dial setting. If the STD 
dial changed by 10 units or more since the last salinometer run (or during 
standardization), another vial of SSW was opened and the standardization 
procedure repeated to verify the setting. 

Samples were run using 3 flushes before the final fill. The computer determined 
the stability of a measurement and prompted for additional readings if there 
appeared to be drift. The operator could annotate the salinometer log, and would 
routinely add comments about cracked sample bottles, loose thimbles, salt 
crystals or anything unusual in the amount of sample in the bottle. 

System of fans and heaters set up to expedite equilibrating salinity samples 
usually worked, but needed some refinement. during the first part of the cruise, 
cases of samples were placed in a heated container as soon as possible to help 
bring them to room temperature. They were then removed and set on a shelf near 
the Autosal for storage until the current case is finished, and for further 
equilibration. The next or current case to be run sat to the right of the 
Autosal, next to the standard seawater. The amount of time each case spent at 
each location varied depending on sample temperature and rate of analysis by the 
operator. 

After encountering issues with thermal fluctuations and noisy data, the process 
was refined to the current procedure. After sampling, cases are now placed on 
the floor for storage until there is space in the heated container. They are 
stacked in the container three high with the next in line at the bottom until 
analysis can begin. Cases are run within 30-60 minutes of removal. Standard 
seawater storage is behind the case being run, underneath a computer shielded 
from room temperature fluctuations. There is also the addition of a room fan to 
circulate air and help dissipate the photo lab's temperature gradients. 

Sampling and Data Processing 

A total of 4268 salinity measurements were made and approximately 250 vials of 
standard seawater (IAPSO SSW) were used. 

Salinity samples were drawn into 200 ml Kimax high-alumina borosilicate bottles, 
which were rinsed three times with the sample prior to filling. The bottles were 
sealed with custom-made plastic insert thimbles and kept closed with Nalgene 
screwcaps. This assembly provides very low container dissolution and sample 
evaporation. Prior to sample collection, inserts were inspected for proper fit 
and loose inserts replaced to insure an airtight seal. The draw and 
equilibration times were logged for all casts. Laboratory temperatures were 
logged at the beginning and end of each run. 

PSS-78 salinity [UNES81] was calculated for each sample from the measured 
conductivity ratios. The difference between the initial vial of standard water 
and the next one run as an unknown was applied as a linear function of elapsed 
run time to the measured ratios. The corrected salinity data were then 
incorporated into the cruise database. 

Data processing included double checking that the station, sample and box number 
had been correctly assigned, and reviewing the data and log files for operator 
comments. The salinity data were compared to CTD salinities and were used for 
shipboard sensor calibration. 

Laboratory Temperature 

The salinometer water bath temperature was maintained slightly higher than 
ambient Laboratory air temperature at 27°C. The ambient air temperature varied 
from 22.6 to 27.4°C during the cruise, and from -0.6 to 1.7°C during any 
particular run. Stations 129, 161, 188, 201, 208, 217 and 224 had a 1-1.7°C 
change in lab temperature during the run. 

The ambient room temperature also maintained a steady observable 24-hour cycle 
that was dependent on environmental conditions and user interaction with the 
Autosal for most of the cruise. There were occasional temperature spikes that 
brought the room temperature above bath temperature, but this was resolved 
midway with greater air circulation. 

Standards 

IAPSO Standard Seawater Batches P-149 was used to standardize station 128-174, 
Batch P-150 was used on stations 175-XXX, and Batch P-151 was used on stations 
xxx-250. It was noticed that some of the vials did not have uniform volumes of 
standard, labels were not put on the vial straight and many of the crimp seals 
did not release properly, the tab breaking away instead of pulling the sealed 
section away. These observations raise quality control questions about this 
batch of Standard Seawater. A recent batch to batch comparison conducted by Dr. 
Kawano [Kawa09] suggests that P-149 requires a salinity offset of +0.8 *1 0-3 
relative to other standard batches tested. 

Analytical Problems 

A large drift was identified on stations ? and ?? attributed to a tainted 
starting IAPSO standards. A correction of the difference in starting and ending 
standard conductivity ratios (0.00048, 0.00015 consecutively) was applied to 
average conductivity ratios for each bottle value. The inconsistency in the lab 
temperature resulted in a correction to Stations 132, 212, 230, 232 and 233. It 
appears that the salinometer was standardized to a lower temperature standard, 
and therefore the standard dial was set incorrectly relative to adjacent runs. 

Results 

The estimated accuracy of bottle salinities run at sea is usually better than 
±0.002 PSU relative to the particular standard seawater batch used. The 95% 
confidence limit for residual differences between the bottle salinities and 
calibrated CTD salinity relative to SSW batch P-149 was ±0.0017 PSU for all 
salinities, and ±0.0006 PSU for salinities deeper than 2000 db. The difference 
with the SSW batch P-150 was ±0.00?? PSU for all salinities, and ±0.000? PSU 
for salinities deeper than 2000 db. 


1.12.  Oxygen Analysis 

Equipment and Techniques 

Dissolved oxygen analyses were performed with an SIO/ODF-designed automated 
oxygen titrator using photometric end-point detection based on the absorption of 
365nm wavelength ultra-violet light. The titration of the samples and the data 
logging were controlled by PC LabView software. Thiosulfate was dispensed by a 
Dosimat 665 buret driver fitted with a 1.0 mL buret. ODF used a whole-bottle 
modified- Winkler titration following the technique of Carpenter [Carp65] with 
modifications by Culberson et al. [Culb91], but with higher concentrations of 
potassium iodate standard (~0.012N) and thiosulfate solution (~55 gm/l). Pre-
made liquid potassium iodate standards were run daily (approximately every 2-4 
stations), unless changes were made to the system or reagents. Reagent/distilled 
water blanks were also deter mined daily or more often if a change in reagents 
required it to account for presence of oxidizing or reducing agents. 

Sampling and Data Processing 

4350 oxygen measurements were made from the main rosette. Samples were collected 
for dissolved oxygen analyses soon after the rosette was brought on board. Three 
different cases of 36 flasks each were rotated by station to minimize flask 
calibration issues, if any. Using a Tygon and silicone drawing tube, nominal 
125ml volume-calibrated iodine flasks were rinsed 3 times with minimal 
agitation, then filled and allowed to overflow for at least 3 flask volumes. The 
sample drawing temperatures were measured with an electronic resistance 
temperature detector (RTD) embedded in the drawing tube. These temperatures were 
used to calculate µmol/kg concentrations, and as a diagnostic check of bottle 
integrity. Reagents (MnCl2 then NaI/NaOH) were added to fix the oxygen before 
stoppering. The flasks were shaken twice (10-12 inversions each time) to assure 
thorough dispersion of the precipitate, once immediately after drawing, and then 
again after about 20 minutes. 

The samples were analyzed within 1-4 hours of collection, and the data 
incorporated into the cruise database. 

Thiosulfate normalities were calculated from each standardization and corrected 
to 20°C. The thiosulfate normalities and blanks were monitored for possible 
drifting or possible problems when new reagents were used. An average blank and 
thiosulfate normality were used to recalculate oxygen concentrations. The 
difference between the original and "smoothed" data in all cases was less than 
0.03%. 

Bottle oxygens data was reviewed insuring proper station, cast, bottle number, 
flask, and draw temperature were entered properly. Any comments made during 
analysis was also reviewed making certain that any anomalous actions were 
investigated and resolved. Occasionally, an incorrect end point was encountered. 
The analyst has the provisions available through the software to check the raw 
data and have the program recalculate a correct end point. This happened a few 
times on this data set. The occurrence is usually attributed to debris in the 
water bath. 

After the data is uploaded to the database, oxygen is graphically compared with 
CTD oxygen and adjoining stations. Any erroneous looking points are reviewed and 
comments are made regarding the final outcome of the investigation. These 
investigations and final data coding are reported in Appendix A. 

Volumetric Calibration 

Oxygen flask volumes were determined gravimetrically with degassed deionized 
water to determine flask volumes at ODF's chemistry Laboratory. This was done 
once before using flasks for the first time and periodically thereafter when a 
suspect volume is detected. The volumetric flasks used in preparing standards 
were volume-calibrated by the same method, as was the 10 ml Dosimat buret used 
to dispense standard iodate solution. 

Standards 

Liquid potassium iodate standards were prepared in 6 liter batches and bottled 
in sterile glass bottles at ODF's chemistry Laboratory prior to the expedition. 
The normality of the liquid standard was determined by calculation from weight. 
The standard was supplied by Alfa Aesar (lot B05N35) and has a reported purity 
of 99.4-100.4%. All other reagents were "reagent grade" and were tested for 
levels of oxidizing and reducing impurities prior to use. 


1.13.  Nutrient Analysis 

Equipment and Techniques 

Nutrient analyses (phosphate, silicate, nitrate plus nitrite, and nitrite) were 
performed on an SIO/STS/ODF-modified 4 channel Technicon AutoAnalyzer II. 
Modifications to the system include STS/ODF developed data acquisition and 
processing software using the LabView utility and an interface from the 
detectors to the computer. The analytical methods used are described by Gordon 
et al. [Gord92] Hager et al. [Hage68] and Atlas et al. [Atla71] 

Silicate 

Silicate was analyzed using the technique of Armstrong et al. [Arms67]. An 
acidic solution of ammonium molybdate was added to a seawater sample to produce 
silicomolybdic acid which was then reduced to silicomolybdous acid (a blue 
compound) following the addition of stannous chloride. Tartaric acid was also 
added to impede PO4 color development. The sample was passed through a 15mm 
flowcell and the absorbance measured at 660nm. 

Reagents 

Tartaric Acid (ACS Reagent Grade) 
  200g tartaric acid dissolved in DW and diluted to 1 liter volume. Stored at 
  room temperature in a polypropylene bottle. 

Ammonium Molybdate 
  10.8g Ammonium Molybdate Tetrahydrate dissolved in 1000ml dilute H2SO4*. 
  *(Dilute H2SO4 =2.8ml conc H2SO4 to a liter DW). Added 3 drops 15% ultrapure 
  SDS per liter of solution. 
Stannous Chloride (ACS Reagent Grade) 
  Stock solution: 
    40g of stannous chloride dissolved in 100 ml 5N HCl. Refrigerated in a 
    polypropylene bottle. 
  Working solution: 
    5mlofstannous chloride stock diluted to 200 ml final volume with 1.2N HCl. 
    Made up daily and stored at room temperature when not in use in a dark 
    polypropylene bottle. 
      NOTE: Oxygen introduction was minimized by swirling rather than shaking 
            the stock solution. 

Nitrate + Nitrate 

A modification of the Armstrong et al. [Arms67] procedure was used for the 
analysis of nitrate and nitrite. For the nitrate analysis, the seawater sample 
was passed through a cadmium reduction column where nitrate was quantitatively 
reduced to nitrite. Sulfanilamide was introduced to the sample stream followed 
by N-(1-naphthyl) ethylenediamine dihydrochloride which coupled to form a red 
azo dye . The stream was then passed through a 15mm flowcell and the absorbance 
measured at 540nm. The same technique was employed for nitrite analysis, except 
the cadmium column was not present, and a 50mm flowcell was used for 
measurement. 

Reagents 

Sulfanilamide (ACS Reagent Grade) 
  10g sulfanilamide dissolved in 1.2N HCl and brought to 1 liter volume. Added 5 
  drops of 40% surfynol 465/485 surfactant. Stored at room temperature in a dark 
  polypropylene bottle. 

N-(1-Naphthyl)-ethylenediamine dihydrochloride (N-1-N) (ACS Reagent Grade) 
  1g N-1-N in DIW, dissolved in DW and brought to 1 liter volume. Added 2 drops 
  40% surfynol 465/485 surfactant. Stored at room temperature in a dark 
  polypropylene bottle. Discarded if the solution turned dark reddish brown. 
Imidazole Buffer (ACS Reagent Grade) 
  13.6g imidazole dissolved in ~3.8 liters DIW. Stirred for at least 30 minutes 
  until completely dissolved. Added 60 ml of CuSO4 + NH4Cl mix (see below). 
  Added 4drops 40% Surfynol 465/485 surfactant. Using a calibrated pH meter, 
  adjusted to pH of 7.83-7.85 with 10% (1.2N) HCl (about 20-30ml of acid, 
  depending on exact strength). Final solution brought to 4L with DIW. Stored at 
  room temperature. 

NH4Cl + CuSO4 mix: 
  2g cupric sulfate dissolved in DIW, brought to 100 ml volume (2%) 250g 
  ammonium chloride dissolved in DIW, brought to 1 liter volume. Added 5ml of 2% 
  CuSO4 solution to the NH4Cl stock. 
  Note: 40% Surfynol 465/485 is 20% 465 plus 20% 485 in DIW. 
        Prepared solution at least one day before use to stabilize. 

Phosphate 

Phosphate was analyzed using a modification of the Bernhardt and Wilhelms 
[Bern67] technique. An acidic solution of ammonium molybdate was added to the 
sample to produce phosphomolybdic acid, then reduced to phosphomolybdous acid (a 
blue compound) following the addition of dihydrazine sulfate. The reaction 
product was heated to ~55°C to enhance color development, then passed through a 
50mm flowcell and the absorbance measured at 820nm. 

Reagents 

Ammonium Molybdate (ACS Reagent Grade) 
  H2SO4 solution: 
    420 ml of DIW poured into a 2 liter Ehrlenmeyer flask or beaker, this flask 
    or beaker was placed into an ice bath. SLOWLY added 330 ml of conc H2SO4. 
    This solution gets VERY HOT!! 
  27g ammonium molybdate dissolved in 250ml of DIW. Brought to 1 liter volume 
    with the cooled sulfuric acid solution. Added 5 drops of 15% ultrapure SDS 
    surfactant. Stored in a dark polypropylene bottle. 
  Dihydrazine Sulfate (ACS Reagent Grade) 
    6.4g dihydazine sulfate dissolved in DIW, brought to 1 liter volume and 
    refrigerated. 

Sampling and Data Processing 

4361 nutrient samples from 123 CLIVAR stations were analyzed. The cruise started 
with new pump tubes and then they were changed twice during the cruise, after 
Stations 160, and 206. The spare pump was put on after Station 194. Four Beer's 
Law calibration checks were run throughout the cruise. Four sets of 
primary/secondary standards were made up over the course of the cruise. Primary 
and secondary standards were compared to the "old" standard before they were 
used to insure continuity between standards. The cadmium column reduction 
efficiency was checked periodically and ranged between 97%-100%. 

Nutrient samples were drawn into 40 ml polypropylene screw-capped centrifuge 
tubes. The tubes and caps were cleaned with 10% HCl and rinsed once with de-
ionized water and 2-3 times with sample before filling. Samples were analyzed 
within two hours after sample collection, allowing sufficient time for all 
samples to reach room temperature. The centrifuge tubes fit directly onto the 
sampler. 

The analog outputs from each of the channels were digitized and logged 
automatically by computer (PC) at 2-second intervals. After each group of 
samples was analyzed, the raw data file was processed to produce another file of 
response factors, baseline values, and absorbances. Computer-produced absorbance 
readings were checked for accuracy against values taken from a strip chart 
recording which is produced simultaneously with the computer. Refractive Index 
blanks were determined periodically by measuring the absorbance of low nutrients 
seawater with one reagent from each of the chemistries offline. The difference 
between the distilled water baseline and the seawater absorbance was recorded. 
Sample concentrations were then calculated, refractive index blanks and anynon-
linear corrections applied, and data merged with other hydrographic 
measurements. Carryover was minimized by running the samples from low to high 
concentration. Nutrients, reported in micromoles per kilogram, were converted 
from micromoles per liter by dividing by sample density calculated at 1 atm 
pressure (0 db), in-situ salinity, and the lab temperature measured when 
individual samples were drawn into the AA. 

Standards and Glassware 

Standardizations were performed at the beginning and end of each group of 
analyses with an inter mediate concentration mixed nutrient standard prepared 
prior to each run from a secondary standard in a low-nutrient seawater matrix. A 
group usually consisted of one station/cast (up to 36 samples). The secondary 
standards were prepared aboard ship by dilution from the pre-weighed primary 
standards. A set of 7 different standard concentrations, Table 1.13.0, were 
analyzed periodically to determine the deviation from linearity, if any, as a 
function of absorbance for each nutrient. Residuals were determined and fit to a 
3rd order polynomial, which was then used to calculate the non-linear 
corrections applied to the nutrient concentrations. An aliquot from a large 
volume of stable deep seawater was also run with each set of samples as a 
substandard and as an additional check. 


Table 1.13.0:  CLIVAR P06E Standard Concentrations 

                        std   N+N   PO4  SiO3  NO2
                        ---  -----  ---  ----  ----
                         1)   0.0   0.0   0.0  0.0
                         2)   7.75  0.6  30    0.25
                         3)  15.50  1.2  60    0.50
                         4)  23.25  1.8  90    0.75
                         5)  31.00  2.4  120   1.00
                         6)  38.75  3.0  150   1.25
                         7)  46.50  3.6  180   1.50


All glass volumetric flasks and pipettes were gravimetrically calibrated prior 
to the cruise. The primary standards were dried and weighed prior to the cruise. 
The exact weight was noted for future reference. When primary standards were 
made, the flask volume at 20°C, the weight of the powder, and the temperature of 
the solution were used to buoyancy correct the weight, calculate the exact 
concentration of the solution, and determine how much of the primary was needed 
for the desired concentrations of secondary standard. 

All the reagent solutions, primary and secondary standards were made with fresh 
distilled deionized water (DIW). 

Working standards were made up in low nutrient seawater (LNSW). LNSW was 
collected from the sea surface via the ship's uncontaminated SW supply. The 
actual concentration of nutrients in this water was empirically determined 
during the calculation of the non-linear corrections that were applied to the 
nutrient concentrations. 

The Nitrate (KNO3 lot# 042263) and Phosphate (KH2PO4 lot# 991608) primary 
standards were obtained from Fisher Scientific with reported purities of 100% 
and 99.8%, respectively. The Silicate (Na2SiF6 lot# J25E26) and Nitrite (NaNO2 
lot# K19D12) standards were obtained from Alfa Aesar with reported purities of 
>98% and 97%. 

Quality Control 

As is standard ODF practice, a deep calibration check sample was run with each 
set of sample. Table 1.13.1 is a summary of those calibration check samples. 


Table 1.13.1:  Calibration check samples

                         Parameter  Concentration (uM)
                         ---------  ------------------
                            NO3         33.3 ±0.22
                            PO4         2.33 ±0.02
                            SIL       121.72 ±0.60


Reference Material for Nutrient Seawater (RMNS) 

Lot "BE" RMNS samples (kindly provided by M. Aoyama of Japan Meteorological 
Research Institute) were run on all stations. In addition, 12 calibration sets 
of four concentrations (lots AS, AX, AZ, and BE) were run throughout the cruise. 
Table 1.13.1 is a summary of those calibration check samples. 


Table 1.13.1:  Calibration check samples 

                         Parameter  Concentration (uM)
                         ---------  ------------------
                            NO3        37.62 ±0.26
                            PO4         2.75 ±0.02
                            SIL       103.89 ±0.56


For stability testing purposes, each time a BE sample was run it was stored in 
the refrigerator and run on the next two subsequent stations. These calibrations 
sets were also run once "fresh" then stored in the refrigerator and re-run on 
the subsequent station. 

Analytical problems 

On Station 131, the acquisition computer hung up. The samples were rerun, but 
one sample could not be salvaged. At the beginning of Station 150 run, the 
AutoAnalyzer UPS overheated and switched off.  

During the troubleshooting purposes, the samples sat out for approximately 1 
hour and were then stored in the refrigerator for 1-2 hours before they were re-
run. On Station 163, there was a reagent delivery problem which caused the loss 
of the first nine silicate samples. The AutoAnalyzer pump was replaced after 
station 194 due to a horrendous grinding gear type noise. Station 196 120-129 
had cadmium column issues and these samples could not be recovered. Station 207 
also had a cadmium column issue; All nitrate for this station was deemed 
questionable. Other than these issues, no major analytical problems occurred. 


References 

Arms67. 
    Armstrong, F.A.J., Stearns, C.R., and Strickland, J.D.H., "The measurement 
    of upwelling and subsequent biological processes by means of the Technicon 
    Autoanalyzer and associated equipment," Deep-Sea Research, 14, pp. 381-389 
    (1967). 

Atla71. 
    Atlas, E.L., Hager, S.W., Gordon, L.I., and Park, P.K., "A Practical Manual 
    for Use of the Technicon AutoAnalyzer(r) in Seawater Nutrient Analyses 
    Revised, "Technical Report215, Reference 71-22, p.49, Oregon State 
    University, Department of Oceanography(1971). 

Bern67. 
    Bernhardt, H. and Wilhelms, A., "The continuous determination of low level 
    iron, soluble phosphate and total phosphate with the AutoAnalyzer," 
    Technicon Symposia, I, pp. 385-389 (1967). 

Brow78. 
    Brown, N.L. and Morrison, G.K., "WHOI/Brown conductivity, temperature and 
    depth microprofiler," Technical Report No. 78-23, Woods Hole Oceanographic 
    Institution (1978). 

Carp65. 
    Carpenter, J.H., "The Chesapeake Bay Institute technique for the Winkler 
    dissolved oxygen method," Limnology and Oceanography, 10, pp. 141-143 
    (1965). 


Culb91. 
    Culberson, C.H., Knapp, G., Stalcup, M., Williams, R.T., and Zemlyak, F., "A 
    comparison of methods for the determination of dissolved oxygen in 
    seawater," Report WHPO 91-2, WOCE Hydrographic Programme Office (Aug 1991). 

Gord92. 
    Gordon, L.I., Jennings, J.C., Jr., Ross, A.A., and Krest, J.M., "A suggested 
    Protocol for Continuous Flow Automated Analysis of Seawater Nutrients in the 
    WOCE Hydrographic Program and the Joint Global Ocean Fluxes Study," Grp. 
    Tech Rpt 92-1, OSU College of Oceanography Descr. Chem Oc. (1992). 

Hage68. 
    Hager, S.W., Gordon, L.I., and Park, P.K., "A Practical Manual for Use of 
    the Technicon AutoAnalyzer(r) in Seawater Nutrient Analyses., "Final report 
    to Bureau of Commercial Fisheries, Contract 14-17-0001-1759., p. 31pp, 
    Oregon State University, Department of Oceanography, Reference No.68-33. 
    (1968). 

Joyc94. 
    Joyce, T., ed. and Corry, C., ed., "Requirements for WOCE Hydrographic 
    Programme Data Reporting, "Report WHPO 90-1, WOCE Report No. 67/91, pp. 52-
    55, WOCE Hydrographic Programme Office, Woods Hole, MA, USA (May1994, Rev. 
    2). UNPUBLISHED MANUSCRIPT. 

Kawa09. 
    Kawano, T.(2009). Personal communication with M.C. Johnson, SIO/STS/ODF. 

Mill82. 
    Millard, R.C., Jr., "CTD calibration and data processing techniques at WHOI 
    using the practical salinity scale," Proc. Int. STD Conference and Workshop, 
    p.19, Mar. Tech. Soc., La Jolla, Ca. (1982). 

Owen85. 
    Owens, W.B. and Millard, R.C., Jr., "A new algorithm for CTD oxygen 
    calibration," Journ. of Am. Meteorological Soc., 15, p. 621 (1985). 

UNES81. 
    UNESCO, "Background papers and supporting data on the Practical Salinity 
    Scale, 1978, "UNESCO Technical Papers in Marine Science, No. 37, p. 144 
    (1981). 



2.  Lowered Acoustic Doppler Current Profiler 
      PI: Eric Firing, University of Hawaii at Manoa 

An RD Instruments Work Horse 300kHz (WH300), Model WHM300IUG50, LADCP was used 
throughout the cruise, powered by a DEEPSEA Power & Light 50V SeaBattery. Both 
were installed on the main rosette by the resident technicians. The instrument 
provides full water column profiles of horizontal velocity currents with a 
vertical resolution of approximately eight meters. 

LADCP downloading and processing were done on a Lenovo S10e laptop running 
Ubuntu Linux, and using a python gui developed at the University of Hawaii. Data 
was processed using LDEO software maintained by Andreas Thurnherr, with vertical 
profiles as well as longitude section plots being produced for general use. CTD 
time series data, but not shipboard ADCP data, were used to constrain 
calculations. 

As for the first leg of the CLIVAR P6 cruise, two problems were encountered. 
Occasionally, the WH300 LADCP would create two or more data files during the 
deployment. Without a single continuous data file it is not possible to process 
the data at present. Secondly, past the Tonga Trench and well into the waters of 
the deep central South Pacific, the waters are characterized by very low 
scatterer abundance (i.e., the biological desert). The lack of scatterers 
resulted in suspect LADCP current estimates, particularly at depths greater than 
~ 2000 m. Velocity estimates in this region based on the shear method differed 
greatly from estimates based on inversion resulting in the telltale "increased 
error because of shear inverse difference" warning from the LDEO processing 
software. Scatterer abundance was sufficiently low to affect LADCP measurements 
from station 100 (32° 30.00 S 166° 22.33 W, Leg 1) to station198 (32° 30.00 S 
100° 33.56 W, Leg 2). The figure below shows the meridional and zonal velocities 
from station 198 onwards. 


Figure 2.1:  Zonal and Meridional velocities from the 300 KHz RD WH300 ADCP. Leg 
             2 of CLIVAR P6 




3.  Total CO2 Measurements 
      PI: Rik Wanninkhof (NOAA/AOML) 
      Cruise Participants: Robert Castle, NOAA/AOML; Lauren Juranek, NOAA/PMEL 

Samples for TCO2 measurements were drawn according to procedures outlined in the 
Handbook of Methods for CO2 Analysis (DOE 1994) from 11.7-L Niskin bottles into 
cleaned 294-mL glass bottles. Bottles were rinsed and filled from the bottom, 
leaving 6 mL of headspace; care was taken not to entrain any bubbles. After 0.2 
mL of saturated HgCl2 solution was added as a preservative, the sample bottles 
were sealed with glass stoppers lightly covered with Apiezon-L grease and were 
stored at room temperature for a maximum of 12 hours prior to analysis. 

TCO2 samples were collected from a variety of depths with one to three replicate 
samples. Typically the replicate seawater samples were taken from the surface, 
around 1000 m and bottom Niskin bottles and run at different times during the 
cell. No systematic difference between the replicates was observed. 

The TCO2 analytical equipment was set up in a seagoing laboratory van. The 
analysis was done by coulometry with two analytical systems (AOML3 and AOML4) 
used simultaneously on the cruise. Each system consisted of a coulometer (UIC, 
Inc.) coupled with a Dissolved Inorganic Carbon Extractor (DICE) inlet system. 
DICE was developed by Esa Peltola and Denis Pierrot of NOAA/AOML and Dana 
Greeley of NOAA/PMEL to modernize a carbon extractor called SOMMA (Johnson et 
al. 1985, 1987, 1993, and 1999; Johnson 1992). In the coulometric analysis of 
TCO2, all carbonate species are converted to CO2 (gas) by addition of excess 
hydrogen ion (acid) to the seawater sample, and the evolved CO2 gas is swept 
into the titration cell of the coulometer with pure air or compressed nitrogen, 
where it reacts quantitatively with a proprietary reagent based on ethanolamine 
to generate hydrogen ions. In this process, the solution changes from blue to 
colorless, which triggers a current through the cell and causes coulometrical 
generation of OH- ions at the anode. The OH- ions react with the H+, and the 
solution turns blue again. A beam of light is shone through the solution, and a 
photometric detector at the opposite side of the cell senses the change in 
transmission. Once the percent transmission reaches its original value, the 
coulometric titration is stopped, and the amount of CO2 that enters the cell is 
determined by integrating the total charge during the titration. 

The coulometers were calibrated by injecting aliquots of pure CO2 (99.99%) by 
means of an 8-port valve outfitted with two sample loops with known gas volumes 
bracketing the amount of CO2 extracted from the water samples for the two AOML 
systems. The stability of each coulometer cell solution was confirmed three 
different ways: two sets of gas loops were measured at the beginning; also the 
Certified Reference Material (CRM), Batches 86 and 96, supplied by Dr. A. 
Dickson of SIO, were measured at the beginning; and the duplicate samples at the 
beginning, middle, and end of each cell solution. The coulometer cell solution 
was replaced after 25 mg of carbon was titrated, typically after 9-12 hours of 
continuous use. 

The pipette volume was determined by taking aliquots at known temperature of 
distilled water from the volumes. The weights with the appropriate densities 
were used to determine the volume of the pipettes. Calculation of the amount of 
CO2 injected was according to the CO2 handbook (DOE 1994). The concentration of 
CO2 ([CO2]) in the samples was determined according to: 

 [CO2] = Cal. factor * (Counts Blank * Run Time) * K mmol/count pipette volume * 
                               density of sample

where Cal. Factor is the calibration factor, Counts is the instrument reading at 
the end of the analysis, Blank is the counts/minute determined from blank runs 
performed at least once for each cell solution, Run Time is the length of 
coulometric titration (in minutes), and K is the conversion factor from counts 
to µmol. The instrument has a salinity sensor, but all TCO2 values were 
recalculated to a molar weight (µmol/kg) using density obtained from the CTD's 
salinity. The TCO2 values were corrected for dilution by 0.2 mL of saturated 
HgCl2 used for sample preservation. The total water volume of the sample bottles 
was 288 mL (calibrated by Esa Peltola, AOML). The correction factor used for 
dilution was 1.0007. A correction was also applied for the offset from the CRM. 
This correction was applied for each cell using the CRM value obtained in the 
beginning of the cell. The average correction was 3.1 mmol/kg. The results 
underwent initial quality control on the ship using TCO2-pressure/ salinity/ 
oxygen/ phosphate/ nitrate/ silicate/ alkalinity and pH plots. Also vertical 
sections were used for the quality control. 

The overall performance of the instruments was good during the cruise. There 
were some problems with the systems. Twice the counts on instrument 4 decreased 
substantially for no apparent reason in the middle of the cell. The first time 
this happened (on station 128) it was not noticed until the end of the cell and 
consequently about half the samples were bad. The second time it happened, on 
station 218, 3 samples were lost. There were several cases where the pipette 
failed to fill for unknown reasons resulting in lost samples and several long 
titrations that may have been caused by problems with the ship's power. The 
often occurred when the ship was coming on station or leaving station and the 
bow thrusters were being turned on or off. AOML 3 had problems with solenoid 
valve 13 that caused slow and sometimes incomplete filling of the pipette. I 
first modified the program to wait longer for the pipette to fill and a week 
later I capped off the output from SV 13. This had the effect of speeding up the 
filling but leaving the sample bottles pressurized so that care needed to be 
take when removing the stoppers. After about 2 weeks, the toaster oven we use to 
dry our glassware failed and could not be repaired. At first we were careful to 
dry every part of the cell when we cleaned it and placed them in the closet 
where the AC vent runs through. This area is usually quite warm and dry, but 
when the weather got cooler, the AC worked less hard and the closet became less 
dry. This caused a lot of problems getting cells to start because they were so 
noisy. Finally, on Feb. 3 I borrowed a small space heater from the electrician 
and put it in the closet where it blew hot air on the glassware. This worked 
quite well and for the rest of the cruise the cells started reasonably well. 

A total of 2660 samples were analyzed for discrete dissolved inorganic carbon. 
The total dissolved inorganic carbon data reported to the database directly from 
the ship are to be considered preliminary until a more thorough quality 
assurance can be completed shore side. 


References

DOE (U. S. Department of Energy). 1994. Handbook of Methods for the Analysis of 
    the Various Parameters of the Carbon Dioxide System in Seawater. Version 
    2.0. ORNL/CDIAC 74. Ed. A.G. Dickson and C. Goyet. Carbon Dioxide 
    Information Analysis Center, Oak Ridge National Laboratory, Oak Ridge, Tenn. 

Johnson, K.M., A. Körtzinger, L. Mintrop, J.C. Duinker, and D.W.R. Wallace. 
    1999. "Coulometric total carbon dioxide analysis for marine studies: 
    Measurement and internal consistency of underway surface TCO2 
    concentrations." Marine Chemistry 67:123-44. 

Johnson, K M., K.D. Wills, D.B. Butler, W.K. Johnson, and C.S. Wong. 1993. 
    "Coulometric total carbon dioxide analysis for marine studies: Maximizing 
    the performance of an automated gas extraction. 

Johnson, K.M. 1992. Operator's Manual: Single-Operator Multiparameter Metabolic 
    Analyzer (SOMMA) for Total Carbon Dioxide (CT) with Coulometric Detection. 
    Brookhaven National Laboratory, Brookhaven, N. Y. 

Johnson, K.M., P.J. Williams, L. Brandstrom, and J.McN. Sieburth. 1987. 
    "Coulometric total carbon analysis for marine studies: Automation and 
    calibration." Marine Chemistry 21:117-33. 

Johnson, K.M., A.E. King, and J.McN. Sieburth. 1985. "Coulometric TCO2 analyses 
    for marine studies: An introduction." Marine Chemistry 16:61-82 




4.  Discrete pH Analyses 
      PI: Frank Millero, RSMAS, Univ of Miami 
      Cruise Participants: Jason Brown, RSMAS/UM; Giuseppe Manfredi, RSMAS/UM 
        Stacy Brown, RSMAS/UM 

Sampling 

From stations 128 to 154, samples were collected in 50ml borosilicate glass 
syringes rinsing a minimum of 2 times. Starting at station 157, samples were 
collected in 10cm, special-optical glass spectrophotometer cells. These cells 
were rinsed a minimum of 2 times and allowed to over fill with twice their 
volume before being sealed with Teflon stoppers. All samples were brought to 
20°C before analysis. Three duplicates were collected from each station. Samples 
were collected on the same bottles as total alkalinity or dissolved inorganic 
carbon in order to completely characterize the carbon system. All submitted data 
is preliminary. 

Analysis 

pH (µmol/kg H2O) on the seawater scale was measured using a Agilent 8453 
spectrophotometer according to the methods outlined by Clayton and Byrne (1993). 
A RTE17 water bath maintained spectrophotometric cell temperature at 20.0°C. For 
samples analyzed before station 154, a 10cm flow through cell was filled 
automatically using a Kloehn 6v syringe pump. The sulfonephthalein indicator m-
cresol purple (mCP) was also injected automatically by the kloehn 6v syringe 
pump into the spectrophotometric cells. Samples after station 157 were blanked 
in the 10cm glass spectrophotometer cell and the mCP was injected using a 
Gilmont micropipette. For all stations, the absorbance of light was measured at 
three different wavelengths (434 nm, 578 nm, 730 nm). The ratios of absorbances 
at the different wavelengths were input and used to calculate pH on the total 
and seawater scales, incorporating temperature and salinity into the equations. 
The equations of Dickson and Millero (1987), Dickson and Riley (1979), and 
Dickson (1990) were used to convert pH from total to seawater scales. Salinity 
data were obtained from the conductivity sensor on the CTD. These data were 
later corroborated by shipboard measurements. Temperature of the samples was 
measured immediately after spectrophotometric measurements using a Guildline 
9540 digital platinum resistance thermometer. 

Reagents 

The mCP indicator dye was a concentrated solution of 2.0 mM with an R = 1.61350. 

Standardization 

The precision of the data can be accessed from measurements of duplicate 
samples, certified reference material (CRM) Batch 96 (Dr. Andrew Dickson, UCSD) 
and TRIS buffers. CRMs were measured approximately every odd station and TRIS 
buffers were measured on every even station. 

Data Processing 

Addition of the indicator affects the pH of the sample, and the degree to which 
pH is affected is a function of the pH difference between the seawater and 
indicator. Therefore, a correction is applied for each batch of dye. To obtain 
this correction factor, all samples throughout the cruise were measured after two 
consecutive additions of mCP. From these two measurements, a change in absorbance 
ratio per mL of mCP indicator is calculated. R was calculated using the 
absorbance ratio (Rm) measured after the initial indicator addition from: 

                    R = Rm + (-0.00173 + 0.000382 Rm) Vind (1)
                    R = Rm + (-0.00254 + 0.000571 Rm) Vind (2)

where Vind is the volume of mCP used. Clayton and Byrne (1993) calibrated the 
mCP indicator using TRIS buffers (Ramette et al. 1977) and the equations of 
Dickson (1993). These equations are used to calculate pH t, the total scale in 
units of moles per kilogram of solution. 

Problems 

At station 154, the Kloehn syringe pump ceased to function. All attempts to 
replace the syringe pump with one of the backup pumps failed. This caused a 
switch in the analysis methods, from the automated system to the manual system. 

Blank absorbencies between 600 and 650nm, were in excess of 0.003. This is a 
problem extending from station 47 in the first leg. This is thought to be a 
problem with the spectrophotometer's diode array detector. 

Measurement temperature was decreased from 25 to 20°C between legs. This change 
was made due to the high occurrence of cracked syringes in the water baths 
during the first leg. It is thought the rapid introduction of the syringes, 
containing water samples at temperatures well below 25°C, into the warm water 
bath caused the syringes to become brittle and crack. This problem was no longer 
encountered once the water bath temperature was decreased. 




5.  Total Alkalinity Analyses 
      PI: Frank Millero, RSMAS, Univ of Miami 
      Cruise Participants: Jason Brown, RSMAS/UM; Giuseppe Manfredi, RSMAS/UM 
        Stacy Brown, RSMAS/UM 

Sampling 

The sampling scheme was roughly an alternation between full (36 Niskins) and 
partial (18 or fewer Niskins) on stations up to 139. All casts, prior to station 
139, had three duplicate samples drawn; one from the near the bottom, oxygen 
minimum, and surface. These duplicates were analyzed so one was split between 
the titration systems A & B, the second set was analyzed on system A and the 
third set analyzed on system B. Due to problems with the titration system A, 
sampling after station 139 was restricted to partial sampling and only one 
duplicate was taken per station. Samples were drawn from Niskin bottles into 500 
ml borosilicate flasks using silicone tubing fit over the petcock. Bottles were 
rinsed a minimum of two times and filled from the bottom, overflowing half of a 
volume while taking care not to entrain any bubbles. 

Approximately 15 ml of water was withdrawn from the flask by arresting the 
sample flow and removing the sampling tube, thus creating a small expansion 
volume and reproducible headspace. The sample bottles were sealed at a ground 
glass joint with a glass stopper. The samples were thermostated at 25°C before 
analysis. 

Analyzer Description 

The total alkalinity of seawater (TAlk) was evaluated from the proton balance at 
the alkalinity equivalence point, pHequiv = 4.5 at 25°C and zero ionic strength 
in one kilogram of sample. The method utilizes a multi-point hydrochloric acid 
titration of seawater according to the definition of total alkalinity (Dickson 
1981). The potentiometric titrations of seawater not only give values of TAlk 
but also those of DIC and pH, respectively from the volume of acid added at the 
first end point and the initial emf, E0. Two titration systems, A and B were 
used for TAlk analysis. Each of them consists of a Metrohm 665 Dosimat titrator, 
an Orion 720A pH meter and a custom designed plexiglass water-jacketed titration 
cell (Millero et al, 1993). Both the seawater sample and acid titrant were 
temperature equilibrated to a constant temperature of 25 ± 0.1°C with a water 
bath (Neslab, model RTE-17). The water-jacketed cell is similar to the cells 
used by Bradshaw and Brewer (1988) except a larger volume (200 ml) is employed 
to increase the precision. Each cell has a fill and drain valve which increases 
the reproducibility of the volume of sample contained in the cell. A typical 
titration recorded the EMF after the readings became stable (deviation less than 
0.09 mV) and then enough acid was added to change the voltage a pre-assigned 
increment (13 mV). A full titration (25 points) takes about 15-20 minutes. The 
electrodes used to measure the EMF of the sample during a titration consisted of 
a ROSS glass pH electrode (Orion, model 810100) and a double junction Ag, AgCl 
reference electrode (Orion, model 900200). 

Reagents 

A single 50-l batch of 0.25 m HCl acid was prepared in 0.45 m NaCl by dilution 
of concentrated HCl, AR Select, Mallinckrodt, to yield a total ionic strength 
similar to seawater of salinity 35.0 (I ≈ 0.7 M). The acid was standardized by a 
coulometric technique (Marinenko and Taylor, 1968; Taylor and Smith, 1959) and 
verified with alkalinity titrations on seawater of known; alkalinity. The 
calibrated molarity of the acid used was 0.24178 ± 0.0001 M HCl. The acid was 
stored in 500-ml glass bottles sealed with Apiezon(r) L grease for use at sea. 

Standardization 

The volumes of the cells used were determined to ±0.03 ml during the initial 
set up by multiple titrations using seawater of known total alkalinity and CRM. 
The cell for system B was replaced at station 28 and calibrated before analyzing 
any samples. Calibrations of the burette of the Dosimat with water at 25°C 
indicate that the systems deliver 3.000 ml (the approximate value for a 
titration of 200 ml of seawater) to a precision of ± 0.0004 ml, resulting in an 
error of ± 0.3 µmol/kg in TAlk. The reproducibility and precision of 
measurements are checked using low nutrient surface seawater and Certified 
Reference Material (Dr. Andrew Dickson, Marine Physical Laboratory, La Jolla, 
California), Batch 96. CRM's were utilized in order to account for instrument 
drift and to maintain measurement precision. Duplicate analyses provide 
additional quality assurance and were taken from the same Niskin bottle. 

Data Processing 

An integrated program controls the titration, data collection, and the 
calculation of the carbonate parameters (TAlk, pH, and DIC). The program is 
patterned after those developed by Dickson (1981), Johansson and Wedborg (1982), 
and U. S. Department of Energy (DOE) (1994). The program uses a Levenberg-
Marquardt nonlinear 




6.  Chlorofluorocarbon (CFC) and Sulfur Hexafluoride (SF6) Measurements 
      PI: Mark J. Warner, University of Washington (warner@u.washington.edu) 
      Cruise Participants: Mark J. Warner, University of Washington; Wendi Ruef, 
        University of Washington;  Carmen Hill-Lindsay, University of 
        California, Los Angeles 

Samples for the analysis of dissolved CFC-11, CFC-12, and SF6 were collected 
from approximately 3070 of the Niskin water samples collected during the 
expedition. When taken, water samples for CFC analysis were the first samples 
drawn from the 10-liter bottles. Care was taken to co-ordinate the sampling of 
CFCs with other samples to minimize the time between the initial opening of each 
bottle and the completion of sample drawing. In most cases, dissolved oxygen, 
alkalinity and dissolved inorganic carbon samples were collected within several 
minutes of the initial opening of each bottle. To minimize contact with air, the 
CFC samples were collected from the Niskin bottle petcock using Viton tubing to 
fill a 300-ml BOD bottle. The Viton tubing was flushed of air bubbles. The BOD 
bottle was placed into a plastic overflow container and filled from the bottom. 
The overflow water filled the container to a depth greater than the height of 
the BOD bottle. The stopper was held in the overflow container to be rinsed. 
When the overflow container was filled, it (and the BOD bottle) were lowered to 
remove the Viton tubing and the BOD bottle was stoppered under water. A plastic 
cap was snapped on to hold the stopper in place. The BOD bottles were stored in 
a refrigerator in the laboratory at 3.5° - 6°C until 30-45 minutes before 
analysis to reduce the degassing and bubble formation in the sample. At that 
time, they were transferred to a water bath at 13°-15°C in order to increase the 
stripping efficiency. 

For atmospheric sampling, a ~200 meter length of 3/8-in OD Dekaron tubing was 
run from the portable laboratory to the bow of the ship. A flow of air was drawn 
through this line to the main laboratory using an Air Cadet pump. The air was 
compressed in the pump, with the downstream pressure held at ~1.5 atm. using a 
back-pressure regulator. A tee allowed a flow (100 ml min-1) of the compressed 
air to be directed to the gas sample valves of the CFC/SF6 analytical systems, 
while the bulk flow of the air (>7 l min-1) was vented through the back pressure 
regulator. Air samples were generally analyzed when the relative wind direction 
was within 100 degrees of the bow of the ship to reduce the possibility of 
shipboard contamination. The pump was run for approximately 30 minutes prior to 
analysis to insure that the air inlet lines and pump were thoroughly flushed. 
the average atmospheric concentrations determined during the cruise (from a set 
of 5 measurements analyzed when possible, n=13) were 241.9 +/- 5.8 parts per 
trillion (ppt) for CFC-11, 524.7 +/- 5.9 ppt for CFC-12, and 6.7 +/- 0.4 ppt for 
SF6. 

Concentrations of CFC-11 and CFC-12, and SF6 in air samples, seawater and gas 
standards were measured by shipboard electron capture gas chromatography (EC-
GC). This system was provided by J. Happell from the U Of Miami Rosentiel School 
of Marine and Atmospheric Sciences and had been utilized on CLIVAR P6 Leg 1. 
Samples were introduced into the GC-EC via a purge and dual trap system. 202 ml 
water samples were purged with nitrogen and the compounds of interest were 
trapped on a main Porapack N/Carboxen 1000 trap cooled by a Vortec Tube to ~ -
20°C. After the sample had been purged and trapped for 6 minutes at 180 ml min-1 
flow, the gas stream was stripped of any water vapor via a magnesium perchlorate 
trap prior to transfer to the main trap. The main trap was isolated and heated 
by direct resistance to 150°C. The desorbed contents of the main trap were back-
flushed and transferred, with helium gas, over a short period of time, to a 
small volume focus trap in order to improve chromatographic peak shape. The 
focus trap (Porapak N) is also cooled to ~ -20°C with a Vortec Tube cooler. The 
focus trap was then flash heated by direct resistance to 180°C to release the 
compounds of interest onto the analytical precolumns. 

The first precolumn was a 5-cm length of 1/16-in tubing packed with 80/100 mesh 
molecular sieve 5A. This column was used to hold back N2O and keep it from 
entering the main column. The second pre-column was the first 5 meters of a 60 m 
Gaspro capillary column with the main column consisting of the remaining 55 
meters. The analytical pre-columns were held in-line with the main analytical 
column for the first 50 seconds of the chromatographic run. After 50 seconds, 
all of the compounds of interest were on the main column and the pre-column was 
switched out of line and back-flushed with a relatively high flow of nitrogen 
gas. This prevented later eluting compounds from building up on the analytical 
column, eventually eluting and causing the detector baseline signal to increase. 

The analytical system was calibrated frequently using a standard gas of known 
CFC composition. Gas sample loops of known volume were thoroughly flushed with 
standard gas and injected into the system. The temperature and pressure was 
recorded so that the amount of gas injected could be calculated. The procedures 
used to transfer the standard gas to the trap, precolumns, main chromatographic 
column and EC detector were similar to those used for analyzing water samples. 
Three sizes of gas sample loops were used. Multiple injections of these loop 
volumes could be made to allow the system to be calibrated over a relatively 
wide range of concentrations. Air samples and system blanks (injections of loops 
of CFC-free gas) were injected and analyzed in a similar manner. The typical 
analysis time for samples was 11.0 min. Concentrations of the CFCs in air, 
seawater samples and gas standards are reported relative to the SIO98 
calibration scale (Cunnold, et. al., 2000). Concentrations in air and standard 
gas are reported in units of mole fraction CFC in dry gas, and are typically in 
the parts per trillion (ppt) range. Dissolved CFC concentrations are given in 
units of picomoles per kilogram seawater (pmol kg-1), and SF6 in femtomoles per 
kilogram seawater (fmol kg-1). CFC concentrations in air and seawater samples 
were determined by fitting their chromatographic peak areas to multipoint 
calibration curves, generated by injecting multiple sample loops of gas from a 
working standard (RSMAS cylinder 32403 for CFC-11: 579 ppt, CFC-12: 429 ppt, and 
SF6: 0.935 ppt) into the analytical instrument. Full-range calibration curves 
were run three times during the cruise. These were supplemented with occasional 
injections of multiple aliquots of the standard gas at more frequent time 
intervals. Single injections of a fixed volume of standard gas at one atmosphere 
were run much more frequently (at intervals of 2 hours) to monitor short-term 
changes in detector sensitivity. The SF6 peak was often on a small bump on the 
baseline, resulting in a large dependence of the peak area on the choice of 
endpoints for integration. 

Estimated accuracy is +/-2%. Precision for CFC-12, CFC-11, and SF6 was less than 
1%. Estimated limit of detection is 1 fmol kg-1 for CFC-11, 3 fmol kg-1 for CFC-
12 and 0.05 fmol kg-1 for SF6. 

The efficiency of the purging process was evaluated twice daily by re-stripping 
high concentration surface water samples and comparing the residual 
concentrations to initial values. These re-strip values were approximately 1% 
for CFC-12 and 8-12% for CFC-11. A correction has been applied to the shipboard 
data. No SF6 was detected in the re-stripped sample. The determination of a 
blank due to sampling and analysis of CFC-free waters was hampered by the 
apparent lack of CFC-free waters. No sampling blank corrections have been made 
to this preliminary data set. 

On this expedition, based on the analysis of 65 duplicate samples, we estimate 
precisions (1 standard deviation) of 1.3% or 0.006 pmol kg-1 (whichever is 
greater) for dissolved CFC-11, 0.70% or 0.005 pmol kg-1 for CFC-12 measurements, 
and 0.05 fmol kg-1 for SF6. 

Analytical Difficulties. 

Between the two legs of the expedition, the flow of the purging gas decreased. 
This resulted in the backflush time of 35 s for water samples (compared to 50 s 
for gas samples) being too short for all of the CFC-11 to have been transferred 
to the main column from the pre-column. Due to a combination of lack of 
familiarity with the system and software and the backflush time for gases being 
at 50 s, it took ~3.5 days to identify the problem. This resulted in the loss of 
CFC-11 data from the first 13 stations of this leg (Stations 128-140). A fair 
number of water samples had anomalously high CFC concentrations relative to 
adjacent samples in the deep water along this section. These samples occurred 
sporadically during the cruise and were not clearly associated with other 
features in the water column (e.g. anomalous dissolved oxygen, salinity or 
temperature features). This suggests that these samples were probably 
contaminated with CFCs during the sampling or analysis processes. Measured 
concentrations for these anomalous samples are included in the preliminary data, 
but are given a quality flag value of either 3 (questionable measurement) or 4 
(bad measurement). 


References:

Prinn, R.G., Weiss, R.F., Fraser, P.J., Simmonds, P.G., Cunnold, D.M., Alyea, F. 
    N., O'Doherty, S., Salameh, P., Miller, B.R., Huang, J., Wang, R.H.J., 
    Hartley, D.E., Harth, C., Steele, L.P., Sturrock, G., Midgley, P.M., 
    McCulloch, A., 2000. A history of chemically and radiatively important gases 
    in air deduced from ALE/GAGE/AGAGE. Journal of Geophysical Research, 105, 
    17, 751-17, 792 




7.  Chromophoric DOM -- A Photoactive Tracer of Geochemical Process 
      PIs: N. Nelson, D. Siegel, C. Carlson, Univ. of California, Santa Barbara 
      Field Team (P6 Leg 2): Norm Nelson (PI), K. G. Fairbarn (Technician) 


Project Goals: 

This project is an ongoing study of the distribution and dynamics of 
chromophoric dissolved organic matter in the open ocean (surface and interior). 
CDOM is an important player in photochemistry and photobiology in the surface 
ocean and has a long lifetime in the interior, suggesting its application as a 
semi conservative tracer of intermediate water renewal and DOM diagenesis. We 
are collecting a variety of samples and data for analysis, primarily of optical 
properties. Ancillary measurements include biological (chlorophyll, 
phytoplankton pigments, cell counts and classification) and geochemical 
measurements. 

Activities on P6 Leg 2: 

Daily goals are to collect samples from one main rosette profile (coordinated 
with DOC and DIC measurements), and conduct one free-fall bio-optics profiler 
deployment. Occasional large volume samples are collected to archive for further 
analysis ashore. We also installed an alongtrack surface optical properties 
system (first use on P6 Leg 1) and a CDOM fluorometer on the main ctd rosette. 

Radiometric Profiler 

We hand deployed a Satlantic MicroPro II profiling spectroradiometer package off 
the stern rail, port side, each day within a time window of 1000 to 1400 local. 
Typical procedure was to carry out one drop to 150 m then two drops to 20 m to 
better resolve surface water properties. Average time for the cast was ~15 
minutes. No cast was performed 13 January due to weather conditions. The package 
contains upwelling and downwelling radiometers covering a wavelength range from 
305 to 665 nm. The package also carried a combined sensor unit with a 
chlorophyll fluorometer and single-channel backscatter sensor that both proved 
effective. A CDOM fluorometer in the same unit was not effective, as sensitivity 
in the combined unit was lower than normal due to electronic interference. 

Aerosol Optical Depth Measurements 

We carried a Solar Light, Inc. Microtops II sunphotometer for occasional (clear 
skies permitting) measurements of spectral solar radiance. These data are useful 
for aerosol modeling and atmospheric correction of ocean color data. Data are 
processed ashore by Dr. Alexander Smirnov, NASA, and are available in near real 
time via the AERONET website: http://aeronet.gsfc.nasa.gov/ 

CDOM Fluorometer on ctd package 

On the ctd package we installed a WETLabs, inc. ECO CDOM fluorometer (EX 370 nm, 
EM 420 nm) sn#428 rated for 6000m. This is designated as "Fluorometer" in the 
ctd data set descriptions. Data are reported as voltage. The last calibration at 
WETLabs against quinine sulfate standards yielded a calibration equation of 
quinine sulfate equivalent (ppb) = 28.65*(V0.067). 

This instrument performed well but at oceanic CDOM concentrations the signal to 
noise ratio is less than 3. CDOM fluorescence profiles reproduced absorption 
coefficient profiles from bottle samples well except in the upper water column 
where the bulk of the absorbing CDOM does not fluoresce efficiently in the 
fluorometer waveband. 

This instrument was also deployed on the I5 section and on Leg 1. Something 
happened to it on the last cast before the port call which resulted in an 
approximately 0.02 V offset in the data for Leg 2. We cannot account for this, 
and the only clue we have is the fact that the sensor was moved without the 
knowledge of the marine techs on or about the last station of Leg 1. Perhaps it 
was damaged at this point. Any damage is minor and has only resulted in the 
aforementioned offset. CTD crew has been good about keeping the optics clean 
throughout the section. 

CDOM analysis 

60 ml samples were taken from all rosette bottles on one cast daily -- 
approximately every fourth ctd cast, approximately 1110 samples in total. 
Duplicates were collected on two randomly selected samples per cast. The samples 
were filtered through 0.2 um Nuclepore filters, then absorption spectra were 
acquired using an WPI UltraPath liquid waveguide spectrophotometer system. The 
spectrophotometer system used on Leg 1 failed on the first station, so a subset 
of samples were collected and returned to UCSB for shore analysis. A new system 
was installed for Leg 2 but the cell has not been calibrated to account for 
refractive index differences between the samples (seawater) and blanks 
(freshwater) so data submission to the CCHDO will be delayed. 

On average two of every 38 samples were contaminated, resulting in excessively 
high background absorption. Repeated measurements of the contaminated samples 
yielded similar results, indicating that this was not due to an electronic 
transient (always a possibility in a single- beam spectrophotometer). In some 
cases where contaminated samples were detected replicates were taken and the 
replicates agreed with the primaries; in other cases the replicate was 
acceptable and the primary was bad or vice versa. No consistent pattern was 
detected in general and cleaning my filtration apparatus and sample gear had no 
obvious effect. Data from these samples were replaced with -999 and were given 
WOCE flag 5. A possible repetitive contamination problem with bottle 36 was 
noted starting at station 208. The contamination was not evident at station 228. 
The contamination appeared to be independent of DO14C group's cleaning of the 
Niskin spigots. Duplicate bottles were tripped at ~5m on station 232 as an 
additional test, and again the contamination was not evident. Samples and 
duplicates from both Niskin bottles on this cast were identical within average 
errors. 

Replication of data from randomly selected duplicate samples was excellent. 
Absorption at 325 nm of duplicate samples was within 2.5% (rms) of the average 
value from the primary samples. 



CHLOR_A measurements 

We measured chlorophyll a using the fluorometric method on the CDOM cast each 
day (bottles 29-36, ~250 m to surface). Samples are filtered onto 0.45 Millipore 
HA filters and extracted 48 hrs in 90% acetone. The extracts were analyzed at 
sea using a Turner Designs 10-AU fluorometer (last calibration date 04/09). 
Incorrectly diluted acetone was responsible for loss of several stations worth 
of data (PI error). Submission of the data to CCHDO is delayed pending 
examination of the calibration history. 

Returned samples 

We stored approximately 300 20 ml seawater samples from rosette casts for ashore 
CDOM characterization. These samples were left over from onboard CDOM analysis 
so no additional water was demanded. Samples were stored in the only available 
refrigerator on the Melville. This fridge is designated for flammable material 
storage and was on average warmer than requested, so we are unsure whether the 
samples will survive uncontaminated. We also collected approximately 16 1-liter 
(large volume) samples from selected stations where water budget was not 
critical. These samples may be subjected to further analysis ashore. 

We also collected approximately 800 samples for flow cytometric analysis of 
bacterial number and characterization. Samples were preserved in dilute 
formaldehyde and frozen at -80°C, and will be analyzed at UCSB. 

We also collected ~80 2-liter samples from the uncontaminated surface seawater 
system for particle analysis. Filters were stored under liquid nitrogen and will 
be returned for particulate light absorption and HPLC phytoplankton pigment 
analysis. An equal number of samples for ashore POC analysis were collected from 
rosette casts where water budget was not critical . 

Particulate light absorption and HPLC data will be made available after analysis 
via the NASA SeaBASS website and database: http://seabass.gsfc.nasa.gov/ 

POC samples will be analyzed at the MSI Analytical Laboratory, UCSB 
(www.msi.ucsb.edu). The data will be turned over to Dr. Wilford Gardner, TAMU, 
for calibration of the SIO beam transmissometer deployed on the ctd package. 

Alongtrack system 

We used a prototype alongtrack system for measuring inherent optical properties 
of the water column on the uncontaminated seawater supply in the main lab. The 
primary instruments on the package are a WETLabs ECO BB3 three-wavelength 
optical backscatter sensor (470, 532, 595 nm) and a WETLabs AC-s hyperspectral 
absorption and beam attenuation meter (400-700 nm). Baseline drift and CDOM 
effects on the signal are assessed by switching in or out an 0.2 micron nylon 
filter cartridge with a computer controlled valve. Filters were changed every 
five days and no discoloration of the filters was noted, indicating the system 
was staying clean. In the coastal transition zone the filters clogged quickly 
and needed daily replacement. This was not observed in onshore testing with high 
biomass seawater, so we concluded that there was insufficient head pressure in 
the Melville's uncontaminated seawater system to maintain flow through a 
partially loaded filter cartridge. The system was flushed daily with fresh water 
to reduce the biofouling rate and the system was cleaned every five days by 
wiping surfaces with ethanol. On this leg we collected data during the fresh 
water flush to assess the flushing rate and to assess instrument calibration 
drift. 

The instruments performed well and we should get some good data after reduction. 
Our biggest problem was leaks, resulting in air intake by the system downstream 
of the debubbler. The head pressure on the uncontaminated seawater system was 
insufficient to maintain good flow through the system at all times so in the 
future we may need to develop an alternate means of collecting seawater for the 
system. 

Processed and QCd data will be made available through the NASA SeaBASS database: 
http://seabass.gsfc.nasa.gov/ 




8.  CLIVAR P06 Helium and Tritium 
      PI: William Jenkins, WHOI 
      Cruise Participant: Pete Landry, WHOI 

Helium Sampling 

664 Helium samples were taken with one lost due to a leaky cylinder. 

Samples were taken roughly every 2.5-3.5 degrees, with 28 stations sampled. 

One duplicate was taken on each station except for the stations 249 and 250 
where only 8 and 4 samples were taken. 

Helium samples were taken in stainless steel sample cylinders. The sample 
cylinders were leak-checked and Back filled with N2 prior to the cruise. Samples 
were drawn using tygon tubing connected to the Niskin bottle at one end and the 
cylinder at the other. Silicon tubing was used as an adapter to prevent the 
tygon from touching the Niskin per the request of the CDOM group. Cylinders are 
thumped vigorously with a bat while being flushed with water from the Niskin to 
help remove bubbles. After flushing roughly 1 liter of water through them, the 
plug valves are closed. As the cylinders are sealed by O-ringed plug valves, the 
samples must be extracted within 24 hours to limit out-gassing. 

Eight samples at a time were extracted using our At Sea Extraction line set up 
in the Helium Van. The stainless steel sample cylinders are attached to the 
vacuum manifold and pumped down to ~2e-7 Torr using a diffusion pump for a 
minimum of 1 hour to check for leaks. The sections are then isolated from the 
vacuum manifold and introduced to the reservoir cans which are heated to >90°C 
for roughly 10 minutes. Glass bulbs are attached to the sections and immersed in 
an individual ice water bath during the extraction process. After 10 minutes 
each bulb is flame sealed and packed for shipment back to WHOI. The extraction 
cans and sections are cleaned with distilled water and isopropanol, and then 
dried between each extraction. 

Helium samples will be analyzed using a mass spectrometer at WHOI. 

Due to the AC failure on Leg 1 only 264 Helium samples were taken instead of the 
intended 472. Those not taken were added to the Leg 2 schedule. 

Tritium Sampling 

456 Tritium samples were taken on the same stations as the Helium samples. Each 

Tritium sample taken corresponded to a Helium sample taken on that station. 

A duplicate was taken on every other station. 

Tritium samples were taken using a silicon adapter and tygon tubing to fill 1-qt 
glass jugs. The jugs were baked in an oven, backfilled with argon, and the caps 
were taped shut with electrical tape prior to the cruise. While filling, the 
jugs are place on the deck and filled to about 2 inches from the top of the 
bottle, being careful not to spill the argon. Caps were replaced and taped shut 
with electrical tape before being packed for shipment back to WHOI. 

Tritium samples will be degassed in the lab at WHOI and stored for a minimum of 
6 months before mass spectrometer analysis. 



9.  Dissolved Organic Matter and Bacterial Samples 
      PI: C. Carlson, University of California, Santa Barbara 
      Support: NSF 
      Cruise Participants:  Anna James and Sheila Griffin, University of 
        California, Santa Barbara 

Project Goals. 

The goal of the DOM project is to evaluate dissolved organic carbon (DOC) and 
total dissolved nitrogen (TDN) concentrations over along the P6 south Pacific 
line. During the P6 cruise, casts were specifically targeted in order to overlap 
with the chromophoric dissolved organic matter (CDOM) sampling. 

Dissolved Organic Carbon and Total Dissolved Nitrogen (DOC/TDN) 

DOC profiles were taken at approximately every other station (~1600 samples). 
Depending on the station depth, 12 - 36 Niskin bottles were sampled. DOC samples 
were passed through an inline filter holding a combusted GF/F filter attached 
directly to the Niskin for samples in the top 500 m of each cast. This was done 
to eliminated particles > than 0.7 µm from the sample. Samples from deeper 
depths were not filtered. Previous work has demonstrated that there is no 
resolvable difference between filtered and unfiltered sample in waters below the 
upper 200 m at the µmol/kg resolution. High density polyethylene 60 ml sample 
bottles were 10% HCl cleaned and Mili-Q water rinsed. Filters were combusted at 
450°C for overnight. Filter holders were 10% HCl cleaned and Mili-Q water 
rinsed. Bottles were rinsed by sample 3 times before filling. 40-50 ml of water 
were taken for each sample. Samples were kept frozen at -20C in the ship's 
freezer. Frozen samples will be shipped back by express shipping to UC Santa 
Barbara for analysis. All samples will be analyzed via the high temperature 
combustion technique on a Shimadzu TOC-V analyzer. DOC analyses are expected to 
be complete within approximately 12 months of their return to the laboratory. 
TDN samples will be analyzed for the surface 200 m from the same DOC sample 
bottle. 

Bacterial Abundance via Flow Cytometry 

Concurrently we collected samples for bacterial abundance to compare the 
distribution to that of CDOM and DOC. We collected 1 profile per day, up to 22 
samples, 15 ml per sample. They are prepped under fume hood, and stored in the 
ship's -80C freezer. Frozen samples will be shipped back by express shipping to 
UC Santa Barbara for analysis. Samples will be analyzed using a BD LSR. 

14C-DIC Sampling was conducted for Ann McNichol's group from WHOI. 14C samples 
were taken at ~ every 4 - 8 stations; deep and shallow profiles were 
interspersed along the transect. 16 stations were sampled in total. Bottles were 
cleaned at WHOI before the cruise. Samples were taken and sealed for storage 
according to the instructions provided by WHOI(1). Samples will be shipped back 
to WHOI for 14C analyses. Samples were taken immediately following alkalinity 
samples. Some samples on casts # 146, 170, 176 did not overlap because I was not 
aware that alkalinity had ceased to sample full casts on even stations (every 
other sample overlaps at these stations.) Stations # 155 and 163 there were some 
processing issues and so not as many alkalinity samples were able to be taken as 
14C.


________________________________________________________________________________
(1) Measuring 14C in seawater total CO2 will be performed by accelerator mass 
    spectrometry, according to WHP Operation and Methods. 





10.  Radiocarbon in Dissolved Organic Matter in Ocean Water 
       PI: Ellen R M. Druffel, University of California, Irvine 
       Support: NSF Chemical Oceanography 
         Cruise Participant P-6: Sheila Griffin, University of California, Irvine 
  

Project Goal: 

DOC ∆14C profile for the South Pacific. DOC ∆14C values will be measured to 
establish a better understanding of the timescale of DOC cycling in the ocean. 

Activities on P-6: 

Detailed profiles were collected at five stations along the cruise transit line. 
using 1-L amber boston round jars with Teflon lined caps. The jars have been 
cleaned with soap and water, soaked in 10% HCl and baked at 550°C for two hours. 
The caps were washed in soap and water and then flushed with 10% HCl, rinsed 
with DI water and air dried. 

This work will increase the number of locations for which profiles of DOC ∆14C 
are available in the Pacific from 3 to 8 sites. 

No processing of samples was done aboard ship. The samples are sent back to UCI 
frozen. 

DOC ∆14C: 

At UCI, bulk DOC will be oxidized using a high-energy (1200-W) ultra-violet Hg-
arc light source (Williams and Druffel, 1987) modified for a 900ml volume and 
lower blank techniques (Beaupre et al., 2007). 

Following production of CO2, aliquots are taken for ∆14C and ∆13C analysis. CO2 
is converted to graphite using standard techniques (Southon et al., 2004). ∆14C 
measurements for all samples are reported as 14C in per mil (Stuiver and Polach, 
1977) and are corrected for extraneous carbon introduced during processing 
(Griffin et al., 2009). The 14C analyses of all samples recovered from these 
procedures will be performed at the Keck Carbon Cycle AMS Laboratory at UCI. 


References

Beaupré, S.R., Druffel, E.R.M. and Griffin, S., 2007. A low-blank photochemical 
    extraction system for concentration and isotopic analyses of marine 
    dissolved organic carbon. Limnology and Oceanography: Methods, 5: 174-184. 

Griffin, S., Beaupré, S.R. and Druffel, E.R.M., 2009. An alternate method of 
    diluting dissolved organic carbon seawater samples for 14C analysis. 
    Radiocarbon, in press. 

Southon, J.R. et al., 2004. The Keck Carbon Cycle AMS Laboratory, U.C.I.: 
    Initial operation and a background surprise. Radiocarbon, 46(1): 41-50. 

Stuiver, M. and Polach, H.A., 1977. Discussion: Reporting of 14C data. 
    Radiocarbon, 19:355-363. 

Vogel, J.S., Southon, J.R. and Nelson, D.E., 1987. Catalyst and binder effects 
    in the use of filamentous graphite for AMS. Nucl. Instrum. Methods Phys. 
    Res., Sect. B, 29: 50-56. 

Williams, P. M. and Druffel, E. R. M., 1987. Radiocarbon in dissolved organic 
    carbon in the central North Pacific. Nature, 330:246-248 



11.  Isotopic Composition of Nitrate 
       PI:  Mark Altabet, School for Marine Science and Technology 
            University of Massachusetts 
            maltabet@umassd.edu 
            Tel.: (508) 999-8622 
       Samplers:  Leg 1: Shenfu Dong 
                  Leg 2: Liz Douglass 

Summary: 
A total of 1897 samples were taken at 80 stations between Brisbane and 
Valparaiso, in accordance with sampling strategy as described below. These 
samples are being shipped to WHOI for further analysis. 

Purpose: 
To measure the ∂15N and ∂18O of dissolved NO3-and possibly the ∂15N of DON 

What was shipped: 
15 grey plastic boxes with hinged lids, consecutively numbered. In each box, are 
~130 x 125 ml bottles for a total of 1950 bottles. Each bottle has been pre-
labeled with consecutive numbers and preloaded with dilute HCL as a 
preservative. 

Sampling directions: 
DO NOT RINSE BOTTLES. Simply fill to neck directly with water from Niskin and 
cap tightly, noting the bottle number and associate info in the log book. If 
possible, write station and cast number on the bottle. Samples are stored at 
room temperature, but better not to be left out on deck. 

Sampling Strategy: 

1) Generally the 24 shallowest depths should be sampled (down to 1500 to 2000m). 
   However, 1/5 of the stations sampled for me should spread out the vertical 
   spacing down to the bottom. 
2) On the first leg (Brisbane to Tahiti), collect a total of 20 stations spread 
   out along the transect or about 1 in 7 station occupations 
3) On the second leg (Tahiti to Valparaiso), collect a total of 60 or more 
   stations spread out along the transect or about 1 in 2 stations occupations. 
   However try to reserve enough bottles to collect the last 5 stations before 
   Valparaiso, Chile. 




12.  Graduate Student Experience at Sea 

The National Science Foundation grant which supports the chief scientist's and 
co-chief scientist's participation also includes support for graduate students 
to participate at sea. At least two students work on the physical oceanography 
team on each cruise, and any savings from other program expenses are used to 
support up to two additional students, berths and other considerations allowing. 
Plus one graduate student is supported to work with the CFC group at sea. Five 
students participated on the P6 leg 2 cruise. Below are short statements from 
each describing their respective experiences and what they gained from them. 


Andrew Bird, University of Rhode Island 

I am currently doing a masters in ocean engineering and wanted a hands-on 
experience in the field, and it does not get much more hands on than a cruise 
like this. In my position as a CTD watch stander I was responsible for 
deployment and recovery of the CTD, sampling the Niskin bottles, and ensuring 
the continuity of the data by acting as a sample cop. 

I believe this cruise has been extremely beneficial to my graduate career. It 
has not only helped me understand the science that goes on, but has allowed me 
to meet experts in the associated fields. Though the length of time at sea and 
the sometimes repetitive nature of the work can be tough at times, it pales in 
comparison to the fun and life experience that I gained. We had a fantastic 
group on board, everyone pulling together as a team and as a result everything 
went smoothly. This experience is something I would definitely recommend to 
others, as it allows you to see oceanography in action and allows you to be part 
of it. 


Angie Pendergrass, University of Washington 

The P6 cruise is my first sea-going experience. I spent the 34 days at sea 
talking to the winch operator, directing the CTD/rosette down to the depths of 
the ocean, bringing it back up, and yelling with a clipboard, while sneaking 
peaks of the beautiful blue ocean and the stratocumulus clouds on the console 
camera and taking breaks to sit outside as often as possible. I am a graduate 
student in an atmospheric sciences department, but I am an aspiring climate 
scientist, and the ocean is a non-negligible part of the climate system. This 
cruise has given me invaluable experiential knowledge and appreciation of the 
ocean. I've spent the last few years writing a lot of code in isolation, so 
going to sea has been my first opportunity to participate in observational 
science. I have seen how much hard work goes into measuring the climate system, 
and how much fun it is to work as part of a team (a great team, at that). I will 
take away from this cruise nearly a thousand pictures of water, clouds, and sun, 
and horizons broadened to include the indigo of the open ocean, 32 degrees 30 
minutes south, new friends, and new ocean observing skills. 


Hannah Traggis, University of New Hampshire 

As a graduate student, I have been studying the effects of iron deficiency on 
the photosynthetic apparatus of oceanic phytoplankton. For a plant physiologist, 
opportunities to participate in ocean-going research expeditions are not that 
frequent. Participating in leg 2 of the P6 CLIVAR cruise has been pivotal in 
reaffirming my lifelong, if not circuitous, pursuit of oceanography. When the 
initial call for watch-stander participants was made known to me, I did not 
hesitate. This was a dream come true. Nearly five weeks at sea sounded like 
heaven and thoughts of Cousteau's adventurous worldwide explorations filled my 
head, Oceanography - pure and realized! The email came, "a berth awaits". The 
only possible answer was "yes!" A long and weary flight brought me from Boston 
to Tahiti for the start of a new year - symbolic irony at its best. Chomping at 
the bit, we boarded the R/V Melville January 4th and were soon underway. At sea, 
at last! From the very beginning and initial meetings, there was an exciting 
synergy amongst all present and boded well for the big push we had ahead; 34 
days for sampling, 123 stations, ~32nm apart and nearly 4000nm of open South 
Pacific Ocean. The 4-day transit from Papeete to our first station on the 32.3 S 
latitude line was spent in preparation for the duties ahead and we were all 
excited and ready. My shift as a student CTD watch-stander, shared with Sam 
Wilson, was midnight to noon and as a "night-person", this suited me fine. We 
soon developed a comfortable routine, supporting each other, keeping spirits 
high and samples flying. We learned that life at sea, in general, and all 
aspects of data collection, specifically, necessitates close attention to detail 
and a willingness to take initiative, jumping in to help whoever is in need of 
an extra hand. I found the entire experience exhilarating, my past dream of 
pursuing a PhD in Biological oceanography now a concrete goal. 


Sam Wilson, UCLA 

I am a recent graduate from UCLA with a degree in Math/Atmospheric and Oceanic 
Sciences. In order to postpone any real world obligations while gaining real 
world experience in my desired field of Oceanography, I jumped at the 
opportunity to be a CTD Watchstander onboard the R/V 

Melville during CLIVAR P6, Leg 2. I arrived in Tahiti on New Year's, 2010, wide-
eyed and excited for the adventure that was before me. 

After the first few awkward days of adjusting to life at sea and becoming 
acquainted with the console, I realized both the simplicity and importance of my 
job. As console operators, we control when the CTD goes into the water, converse 
with the winch operators regarding package speeds and depths , remotely trip 
Niskin Bottles on the up-cast of the package, and command samplers during the 
Rosette Dance. It was soon understood that not only was it important to complete 
these tasks, we needed to complete these tasks quickly; a five or ten minute 
loss on each cast could mean entire days when compounded. As a team, the console 
operators performed admirably and had cast times comparable and even quicker 
than CLIVAR averages; we destroyed Leg 1 cast times. 

I have gained an immense amount of experience and learned many things about 
myself and the field of observational oceanography. One of the greatest 
accomplishments I will take away from this cruise is the fact that I spent a 
full 36 days on a boat. I was able to eat, work, read, write, and play on a boat 
enough to keep myself entertained, all without getting seasick or going insane. 
I learned how to sample from Niskin Bottles, interpret water column profiles, 
and run taglines while deploying and recovering. I learned to use lifejackets to 
tilt my bunk to prevent rolling with the ship. I learned that research vessels 
are fully stocked with provisions enough to satiate even my hunger. I was able 
to make some great friends in the field of Marine Sciences who I will travel 
around Chile with and keep in contact with later. Most of all, however, I 
reaffirmed that I love the ocean and have picked the correct field for me. 




13.  Acknowledgements of Interagency cooperation and support 

The U. S. Global Ocean Carbon and Repeat Hydrography Program (also known as the 
U. S. CLIVAR/CO2 Repeat Hydrography Program) has benefited from interagency, 
multi- institutional, and cross-disciplinary collaboration from its inception. A 
tradition of close cooperation between NSF and NOAA funded partners was 
particularly strong for the long 2-leg occupation of the P6 section. Overall, 
the principal investigators and scientific party included representatives from 
10 different U. S. institutions We are grateful to NSF and NOAA and program 
managers for the support, advice and encouragement which continues to make this 
program a success. We acknowledge the support of Servicio Hidrografico y 
Oceanografico de la Armada in granting clearance to work in Chilean waters on 
the eastern end of this section. We greatly appreciate the efforts and 
professionalism of Captain Wesley Hill and the officers and crew of R/V Melville 
in facilitating the science objectives of this cruise. 


Officers and Crew of R/V Melville

                       Name                  Position 
                       --------------------  --------------
                       Wesley Hill           Captain 
                       Dave Seltzer          Chief Engineer 
                       Ian Lawrence          1st Mate 
                       Michelle Jackson      2nd Mate 
                       Chris Sheridan        3rd Mate 
                       Eliza Mack            1st A/E 
                       Sabrina Tarraboletti  2nd A/E 
                       Laura Anderson        3rd A/E 
                       Bob Seeley            1st Cook 
                       Richard Buck          2nd Cook 
                       Dave Grimes           Boatswain 
                       John Boing            Electrician 
                       Cletus Finell         A/B 
                       Sandor Vinkovits      A/B 
                       Edmund Warren         A/B 
                       Will Brown            Oiler 
                       Phil Hogan            Oiler 
                       Joe Ramos             Oiler 
                       Pam St. Amand         Oiler 
                       Rolando Yco           Wiper 
                       Jeanne Fleming        OS 







                                       Appendix A

                          CLIVAR P06E: Bottle Quality Comments



Comments from the Sample Logs and the results of STS/ODF's data investigations are 
included in this report. Units stated in these comments are degrees Celsius for 
temperature, Unless otherwise noted, milliliters per liter for oxygen and micromoles 
per liter for Silicate, Nitrate, Nitrite, and Phosphate. The sample number is the 
cast number times 100 plus the bottle number. Investigation of data may include compar- 
ison of bottle salinity and oxygen data with CTD data, review of data plots of the 
station profile and adjoining stations, and re-reading of charts (i.e. Nutrients).


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
128/1  105   o2        4     Oxygen appears high. No analytical problems noted, suspect drawing error.
                             Other data are acceptable. Code oxygen bad.

128/1  106   salt      2     Salinity slightly high compared with CTD and adjoining stations, within
                             accuracy of the measurement. Salinity, oxygen and nutrients are acceptable.

128/1  111   o2        4     Oxygen appears high. No analytical problems noted, suspect drawing error.
                             Other data are acceptable. Code oxygen bad.

128/1  116   o2        3     O2 low, 0.02. Analyst: "Rechecked endpoints, okay." Suspect drawing error,
                             code oxygen questionable, salinity and nutrients are acceptable.

128/1  124   salt      2     Salinity thimble came out with cap. Salinity as well as other data agree with
                             adjoining stations and CTD. Salinity as well as other data are acceptable.

128/1  126   salt      4     Bottle salinity is low compared with CTD and adjoining stations. No analytical
                             problem noted, could have been drawn from bottle 24. Other data are
                             acceptable. Code salinity bad.

128/1  135   o2        2     Oxygen stopper broke, sample still good but had glass in sample. Oxygen as
                             well as salinity and nutrients are acceptable.

129/1  104   salt      2     Salinity slightly high compared with adjoining stations and CTD. No analytical
                             problems noted. Salinity as well as oxygen and nutrients are acceptable.

129/1  109   salt      2     3 attempts for a good salinity reading. Thimble came out with cap. Operator
                             error, only 2 readings taken. Classic contamination signs. Salinity as well as
                             oxygen and nutrients are acceptable.

129/1  111   salt      2     Salinity thimble came out with cap. Salinity as well as oxygen and nutrients
                             are acceptable.

129/1  119   o2        2     Oxygen was drawn from bottle 18 instead of 19, 20 was drawn from 19 and
                             appears acceptable.

129/1  120   o2        5     Oxygen was drawn from bottle 19 instead of 20. Oxygen sample lost. Speck
                             of dirt or something swirling in sample, causing erratic graph. Oxygen as well
                             as salinity and nutrients are acceptable. CTDO not reported since there is no
                             bottle oxygen.

129/1  121   salt      2     Salinity thimble came out with cap. Salinity as well as oxygen and nutrients
                             are acceptable.

129/1  123   salt      2     Salinity thimble came out with cap. Salinity as well as oxygen and nutrients
                             are acceptable.

129/1  127   bottle    2     Top vent not closed. Oxygen as well as salinity and nutrients are acceptable.

129/1  128   CTDT1     3     CTDT1 unstable primary temperature reading vs. CTDT2/SBE35T, code
                             questionable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
129/1  128   salt      2     3 attempts for a good salinity reading. Salinity as well as oxygen and
                             nutrients are acceptable.

129/1  130   salt      2     3 attempts for a good salinity reading. Salinity as well as oxygen and
                             nutrients are acceptable.

129/1  133   o2        2     Oxygen redrawn. Oxygen as well as salinity and nutrients are acceptable.

129/1  134   o2        2     Oxygen redrawn. Oxygen as well as salinity and nutrients are acceptable.

129/1  135   o2        2     Oxygen redrawn. Oxygen as well as salinity and nutrients are acceptable.

129/1  136   salt      2     3 attempts for a good salinity reading. Salinity as well as oxygen and
                             nutrients are acceptable.

130/1  101   bottle    2     Ran out of water before salinity could be drawn. Oxygen appears a little high,
                             nutrients are acceptable. Could have been that samplers were not
                             conservative, should have had ˜3 liters of water remaining.

130/1  105   o2        4     Oxygen appears high compared with CTD and adjoining stations. Code
                             oxygen questionable. Analyst: "Noisy end point, code sample bad."

130/1  105   salt      2     Had to flush salinometer cell multiple times on second reading due to trapped
                             air bubbles. Salinity as well as nutrients are acceptable.

130/1  106   no3       3     Nitrate high compared to profile and adjoining stations. Phosphate is low. No
                             corresponding feature in other Nutrient or oxygen. No analytical errors noted.
                             SiO3 agrees with Station 129. Code NO3 questionable, salinity, oxygen and
                             SiO3 acceptable.

130/1  106   po4       3     Phosphate low compared to profile and adjoining stations. No corresponding
                             feature in other Nutrient or oxygen. No analytical errors noted. Code PO4
                             questionable, salinity, oxygen and SiO3 acceptable.

130/1  112   salt      2     Multiple flush attempts due to trapped air bubbles in salinometer cell. Salinity
                             as well as oxygen and nutrients are acceptable.

130/1  113   o2        4     Oxygen appears high compared with CTD and adjoining stations. Code
                             oxygen bad. Analyst: "Noisy end point curve, code bad."

130/1  116   o2        2     Oxygen had an operator error and recovery. Oxygen as well as salinity and
                             nutrients are acceptable.

131/1  105   salt      2     Salinity bottle rim chip - bad sampling technique. Seal compromised; bottle
                             discarded. Salinity as well as oxygen and nutrients are acceptable.

131/1  107   o2        3     Oxygen is high compared with CTD and adjoining stations. No analytical
                             problems noted, suspect sampling error. Code oxygen questionable, salinity
                             and nutrients are acceptable. Analyst: "Good endpoint. No analytical errors
                             found, suspect sampling error. Code oxygen questionable." PN: after new
                             CTDO fit, this sample agrees with the CTD.

131/1  109   o2        3     Oxygen is high compared with CTD and adjoining stations. No analytical
                             problems noted, suspect sampling error. Code oxygen questionable, salinity
                             and nutrients are acceptable.

131/1  110   o2        3     Oxygen is high compared with CTD and adjoining stations. No analytical
                             problems noted, suspect sampling error. Code oxygen questionable, salinity
                             and nutrients are acceptable.

131/1  111   o2        3     Oxygen is high compared with CTD and adjoining stations. No analytical
                             problems noted, suspect sampling error. Code oxygen questionable, salinity
                             and nutrients are acceptable.

131/1  112   o2        3     Oxygen is slightly low compared with CTD and adjoining stations. No
                             analytical problems noted, suspect pickling error. Code oxygen questionable,
                             salinity and nutrients are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
131/1  127   no2       5

131/1  127   no3       5     Nutrient computer hung-up, sample was subsequently lost.

131/1  127   po4 5

131/1  127   sio3      5    

131/1  129   salt      2     Bottle salinity is low compared with CTD and slightly low compared with
                             adjoining stations. Bottle flushing problem, water entrained from lower in
                             water column. Salinity as well as oxygen and nutrients are acceptable.

131/1  130   no2       5

131/1  130   no3       5     Nutrient sample was spilled, therefore, there was not enough water for rerun.

131/1  130   po4       5

131/1  130   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

131/1  130   sio3      5    

131/1  131   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

131/1  135   CTDT2     3     CTDT2 unstable secondary temperature reading vs. CTDT1/SBE35T, code
                             questionable.

132/1  101   salt      2     (1-36) Salinometer standardized to low temp std, std dial set inconsistently
                             with adjacent runs. Correction made for std dial. DP: "Salinity high compared
                             with CTD and adjoining station profiles. Within the accuracy of the
                             measurement, but obviously offset. Suspect that standard seawater was not
                             equilibrated to salinometer bath temperature. Adjusted bottle salinity data."

132/1  104   o2        2     Sample was over titrated and back titrated. Oxygen as well as salinity and
                             nutrients are acceptable.

132/1  112   o2        4     Oxygen low compared with CTD. Code oxygen questionable. Analyst: "Fixed
                             endpoint. Data still looks questionable. Suspect sampling error. Code
                             oxygen bad."

132/1  114   o2        2     Oxygen flask broken during sampling, replaced 1451 with 1753.

132/1  121   salt      2     Salinity thimble came out with cap. Salinity as well as oxygen and nutrients
                             are acceptable.

132/1  129   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

132/1  131   salt      2     Bottle salinity is low compared with CTD and adjoining stations. Suspect
                             entrained water and bottle was not flushed properly. Salinity as well as
                             oxygen and nutrients are acceptable.

132/1  136   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

133/1  101   o2        3     Oxygen ˜0.03ml/l high compared with adjoining stations. No analytical
                             problems noted, suspect sampling error. Code oxygen questionable, salinity
                             and nutrients are acceptable.

133/1  105   o2        3     Oxygen high compared with CTD and adjoining stations. Code oxygen
                             questionable, salinity and nutrients acceptable.

133/1  110   o2        3     Oxygen low compared with CTD and adjoining stations. Draw temperature
                             also appears slightly low. Code oxygen questionable, salinity and nutrients
                             acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
133/1  111   o2        2     Oxygen high compared with CTD. Analyst: "Good endpoint. No analytical
                             errors found." Suspect data reviewed before CTDO was fit, agrees with
                             adjoining stations.

133/1  112   o2        2     Oxygen high compared with CTD. Analyst: "Good endpoint. No analytical
                             errors found." Suspect data reviewed before CTDO was fit, agrees with
                             adjoining stations.

133/1  120   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

133/1  124   salt      2     Salinity cap came off with lid. Salinity, oxygen and nutrients are acceptable.

133/1  126   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

133/1  129   salt      2     Salinity cap came off with lid before wiping. Salinity, oxygen and nutrients are
                             acceptable.

133/1  135   CTDT2     3     CTDT2 gives an unstable reading vs. CTDT1. Appears all three temperature
                             readings had a problem. Code CTDT2 questionable.

133/1  135   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

134/1  101   o2        2     Oxygen appears low compared with station profile, agrees with CTD. Oxygen
                             as well as salinity and nutrients are acceptable.

134/1  101   salt      2     Salinity slightly high compared with CTD. Within the accuracy of the
                             measurement. Salinity as well as oxygen and nutrients are acceptable.

134/1  111   o2        3     Oxygen appears high, ˜0.02, compared with CTD and silicate profile. Code
                             oxygen questionable, salinity and nutrients are acceptable.

134/1  113   o2        3     Oxygen appears high, ˜0.02, compared with CTD and silicate profile. Code
                             oxygen questionable, salinity and nutrients are acceptable.

134/1  119   salt      2     4 attempts for a good salinity reading. Thimble came off with cap - classic
                             contamination reading pattern. Salinity as well as oxygen and nutrients are
                             acceptable.

134/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

134/1  135   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

135/1  101   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

135/1  124   CTDT1     3     CTDT1 unstable primary temperature reading vs. CTDT2/SBE35T, code
                             questionable.

135/1  129   bottle    2     Bottle was mistakenly tripped as the package was moving. NO3 and PO4
                             slightly low, salinity and oxygen are acceptable

135/1  129   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

135/1  135   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

136/1  101   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 5 attempts
                             for a good salinity reading. Used the first reading, but that did not completely
                             resolve the salinity issue. Suspect the salinometer was have problems, within
                             the accuracy of the measurement. Salinity as well as oxygen and nutrients
                             are acceptable.

136/1  102   salt      3     Bottle salinity is low compared with CTD and adjoining stations. No analytical
                             problems noted, had problems with the first sample stabilizing. Code salinity
                             questionable, oxygen and nutrients are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
136/1  105   salt      4     4 attempts for a good salinity reading. The first reading did not resolve the
                             disagreement with adjoining station and CTD comparison. Code salinity bad,
                             oxygen and nutrients are acceptable.

136/1  109   salt      2     3 attempts for a good salinity reading. Salinity as well as oxygen and
                             nutrients are acceptable.

136/1  112   salt      2     3 attempts for a good salinity reading. Salinity as well as oxygen and
                             nutrients are acceptable.

136/1  117   o2        2     Changed O2 thermometer.

136/1  122   salt      2     3 attempts for a good salinity reading. Salinity as well as oxygen and
                             nutrients are acceptable.

136/1  126   CTDT1     3     CTDT1 unstable primary temperature reading vs. CTDT2/SBE35T, code
                             questionable.

136/1  129   no3       2     Nutrients all low compared to profile and adjoining stations. Corresponding
                             feature in o2 profile. Salinity agrees with CTD. Nutrients as well as salinity
                             and oxygen are acceptable.

136/1  134   CTDT2     3     CTDT2 unstable primary temperature reading vs. CTDT1/SBE35T, code
                             questionable.

136/1  135   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

137/1  105   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 3 attempts
                             for a good salinity reading. Cap came off with lid before wiping; visible salt
                             crystals. Used first reading resulting in good agreement with adjoining
                             stations and CTD. Salinity as well as oxygen and nutrients are acceptable.

137/1  108   salt      2     Salinity cap came off with lid before wiping. Salinity as well as oxygen and
                             nutrients are acceptable.

137/1  118   salt      2     Multiple salinity flush attempts due to 'sticky' air bubbles. Salinity as well as
                             oxygen and nutrients are acceptable.

137/1  126   salt      2     3 attempts for a good salinity reading. Significant oscillations in second to
                             last decimal place; unknown cause. Additional readings do not resolve CTD
                             difference. Gradient area, bottle may not have been flushed well enough.
                             Salinity as well as oxygen and nutrients are acceptable.

137/1  128   salt      2     3 attempts for a good salinity reading. Salinity as well as oxygen and
                             nutrients are acceptable.

137/1  135   salt      2     3 attempts for a good salinity reading. Significant oscillations; unknown
                             cause. Salinity as well as oxygen and nutrients are acceptable.

138/1  104   o2        2     Oxygen flask broken, 1183, replaced with next flask in box and 1710
                             retrieved from the lab for bottle 7. Oxygen as well as salinity and nutrients are
                             acceptable.

138/1  108   salt      4     Bottle salinity is low compared with CTD and adjoining stations. Suspect the
                             sample was run too quickly. Code bottle salinity bad, oxygen and nutrients
                             are acceptable.

138/1  128   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

138/1  129   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

138/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

138/1  135   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

138/1  136   bottle    2     Bottle out of water for POC, salinity and D14_no3 sampling, should have
                             been 3 liters of water left even with duplicate surface sampling. O2 does
                             appear slightly high, but acceptable. Suspect samplers were not frugal with
                             the water.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
139/2  204   o2        5     Forgot stirrer bar in oxygen flask; sample lost. CTDO not reported since there
                             is no bottle oxygen.

139/2  211   salt      2     Salinity bottles out of order in box, 11, 12, 10. Analyst assigned the numbers
                             that were on the bottle and per the Sample Log sheet, appears to be the
                             correct order as analyzed. Salinity as well as oxygen and nutrients are
                             acceptable.

139/2  212   salt      2     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problems noted, other than bottles switched in box. Salinity
                             difference is just outside of the accuracy of the measurement. Code salinity
                             questionable, oxygen and nutrients are acceptable.

139/2  220   salt      4     Bottle salinity is high compared with CTD and adjoining stations. Salinity
                             could have been mis-drawn from bottle 19. Code salinity bad, oxygen and
                             nutrients are acceptable.

139/2  221   salt      2     Salinity cap came off with lid before wiping. Salinity as well as oxygen and
                             nutrients are acceptable.

139/2  224   salt      2     Salinity cap came off with lid before wiping. Salinity as well as oxygen and
                             nutrients are acceptable.

139/2  227   CTDT1     3     CTDT1 unstable reading vs. SBE35RT/CTDT2, code questionable.

139/2  229   salt      2     3 attempts for a good salinity reading. Salinity as well as oxygen and
                             nutrients are acceptable.

139/2  232   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

139/2  232   salt      2     Bottle salinity is high compared with CTD. CTD measuring water from deeper
                             in the water column, could be bottle not flushed properly. Salinity as well as
                             oxygen and nutrients are acceptable.

139/2  234   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

139/2  236   bottle    2     Bottle out of water for BACT, salinity and D14_no3 sampling, duplicate
                             surface sampling. Suspect samplers were not frugal with the water.

140/1  105   salt      2     Salinity bottle cap came off with lid before wiping. Salinity as well as oxygen
                             and nutrients are acceptable.

140/1  106   salt      4     Bottle salinity is high compared with CTD and adjoining stations. Salinity
                             appears to have been drawn from bottle 5. Code salinity bad, oxygen and
                             nutrients are acceptable.

140/1  107   po4       2     PO4 low, ˜0.02. Feature not seen in other nutrients, salinity or oxygen.
                             Analyst: "No analytical errors." Within accuracy of the measurement,
                             nutrients, salinity and oxygen are acceptable.

140/1  107   salt      2     3 attempts for a good salinity reading. Excessive flushes on salinometer to
                             clear air bubbles. Salinity as well as oxygen and nutrients are acceptable.

140/1  124   salt      2     Salinity bottle very dirty cap; replaced for next use. Salinity as well as oxygen
                             and nutrients are acceptable.

140/1  126   salt      2     4 attempts for a good salinity reading. Salinity cap came off with lid before
                             wiping. Salinity as well as oxygen and nutrients are acceptable.

140/1  128   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

140/1  128   salt      2     Bottle salinity is high compared with CTD. Gradient, salinity as well as
                             oxygen and nutrients are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
140/1  129   salt      2     3 attempts for a good salinity reading. Gradient, salinity as well as oxygen
                             and nutrients are acceptable.

140/1  130   salt      2     4 attempts for a good salinity reading. Gradient, salinity as well as oxygen
                             and nutrients are acceptable.

141/1  111   o2        2     Oxygen appears high compared with CTD and adjoining stations. No
                             analytical problems noted. Salinity and nutrients are acceptable. RC:
                             "Oxygen is acceptable."

141/1  119   o2        2     Sample cop did not hear O2 draw temp, "guesstimated." Oxygen
                             temperature looks reasonable. Oxygen as well as salinity and nutrients are
                             acceptable.

141/1  124   salt      2     3 attempts for a good salinity reading. Thimble popped out same time as cap.
                             First reading used for calculation of salinity. Salinity as well as oxygen and
                             nutrients are acceptable.

141/1  128   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

141/1  132   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

141/1  135   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

142/1  109   salt      2     Bottle salinity is high compared with CTD. No analytical problems noted,
                             although this run is a little noisy, within accuracy of the measurement. Salinity
                             as well as oxygen and nutrients are acceptable.

142/1  116   salt      2     Bottle salinity is high compared with CTD and adjoining stations. Used first
                             salinity reading to resolve salinity difference with CTD and adjoining stations.
                             Salinity as well as oxygen and nutrients are acceptable.

142/1  119   salt      2     Salinity bottle thimble came out with cap. Salinity as well as oxygen and
                             nutrients are acceptable.

142/1  130   o2        5     Oxygen flask, 1630, broken during double shake, sample lost.

143/1  120   bottle    4     Bottle mis-tripped, code bottle leaking and samples bad.

143/1  120   no2       4     Nutrients all high compared to profile and adjoining stations. Corresponding
                             feature in o2 profile. Possible mis-trip?

143/1  120   no3       4    

143/1  120   o2        4    

143/1  120   po4       4    

143/1  120   salt      4     Bottle salinity is high compared with CTD and adjoining stations. Bottle mis-
                             tripped. Code salinity bad, bottle did not trip as scheduled and samples bad.

143/1  120   sio3      4    

143/1  121   salt      2     3 attempts for a good salinity reading. Cap came off with lid before wiping. First 
                             reading gave better agreement with CTD and adjoining bottles. Salinity
                             as well as oxygen and nutrients are acceptable.

143/1  123   salt      2     Salinity cap came off with lid before wiping. Salinity as well as oxygen and
                             nutrients are acceptable.

143/1  124   salt      2     Salinity cap came off with lid before wiping. Salinity as well as oxygen and
                             nutrients are acceptable.

143/1  126   salt      2     Salinity cap came off with lid before wiping. Salinity as well as oxygen and
                             nutrients are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
144/1  104   salt      2     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problems noted, within the accuracy of the measurement, 0.001.
                             Salinity as well as oxygen and nutrients are acceptable.

144/1  107   salt      2     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problems noted, within the accuracy of the measurement. Salinity
                             as well as oxygen and nutrients are acceptable.

144/1  109   no3       2     NO3 low, ˜0.2. Analyst: "Peak reread, fixed and uploaded new file.

144/1  112   o2        2     Oxygen low compared with adjoining stations, gradient, could be bottle
                             flushing issue. Oxygen as well as salinity and nutrients are acceptable.

144/1  113   bottle    3     Leaking from spigot, vent is too loose. Oxygen and nutrients were not drawn.
                             Salinity and D15N_NO3 were drawn. Salinity is acceptable.

144/1  119   salt      2     Salinity cap came off with lid before wiping. Salinity as well as oxygen and
                             nutrients are acceptable.

144/1  130   o2        5     Oxygen flask, 1630, broken during double shake, sample lost. CTDO not
                             reported since there is no bottle oxygen.

144/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

145/1  104   o2        3     Oxygen high compared with CTD. Analyst: "Good endpoint. No analytical
                             errors found. Suspect sampling error, code oxygen questionable."

145/1  107   salt      2     Salinity thimble popped out with cap. Salinity as well as oxygen and nutrients
                             are acceptable.

145/1  114   salt      2     Salinity thimble popped out before bottle neck was cleaned. Salinity as well
                             as oxygen and nutrients are acceptable.

145/1  116   salt      2     4 attempts for a good salinity reading. Salinity thimble came out with cap classic
                             contamination readings. Salinity as well as oxygen and nutrients are
                             acceptable.

145/1  123   salt      2     Salinity thimble came out with cap. Salinity as well as oxygen and nutrients
                             are acceptable.

145/1  124   salt      2     4 attempts for a good salinity reading. Salinity thimble came out with cap classic
                             contamination readings. Salinity as well as oxygen and nutrients are
                             acceptable.

145/1  128   salt      2     3 attempts for a good salinity reading. Gradient area, salinity as well as
                             oxygen and nutrients are acceptable.

145/1  132   salt      2     Bottle salinity is low compared with CTD. Probably difference between bottle
                             sampling and CTD, 1 meter, low salinity feature seen. Salinity as well as
                             oxygen and nutrients are acceptable.

145/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

146/2  201   no3       2     NO3 high, ˜0.3. Analyst: "No analytical errors noted."

146/2  201   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 3 attempts
                             for a good salinity reading. First reading gives better agreement with CTD.
                             Entire cast is high, most are within accuracy of the measurement. Salinity as
                             well as oxygen and nutrients are acceptable.

146/2  202   salt      2     3 attempts for a good salinity reading. Salinity as well as oxygen and
                             nutrients are acceptable.

146/2  203   salt      2     Bottle salinity is high compared with CTD and adjoining stations. Salinity is
                             within accuracy of the measurement, oxygen and nutrients are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
146/2  204   salt      4     Bottle salinity is high compared with CTD and adjoining stations. 3 attempts
                             for a good salinity reading. Additional readings did not resolve salinity
                             difference. Code salinity bad, oxygen and nutrients are acceptable.

146/2  209   salt      4     Bottle salinity is high compared with CTD and adjoining stations. Entire cast
                             is high. Code salinity bad, oxygen and nutrients acceptable.

146/2  221   salt      2     4 attempts for a good salinity reading. Additional readings did not resolve
                             salinity difference with CTD, within accuracy of measurement. Salinity,
                             oxygen and nutrients are acceptable.

146/2  224   salt      2     4 attempts for a good salinity reading. First reading give better agreement
                             with CTD and adjoining stations. Entire cast is high, most are within accuracy
                             of the measurement. Salinity, oxygen and nutrients are acceptable.

146/2  226   CTDT2     3     CTDT2 unstable reading vs. CTDT1/SBE35RT, code questionable.

146/2  230   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

146/2  234   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

147/1  103   salt      2     3 attempts for a good salinity reading. First reading gave better agreement
                             with CTD and adjoining stations. Salinity as well as oxygen and nutrients are
                             acceptable.

147/1  105   salt      2     Salinity cap came off with lid before wiping. Salinity as well as oxygen and
                             nutrients are acceptable.

147/1  112   salt      2     3 attempts for a good salinity reading. Salinity as well as oxygen and
                             nutrients are acceptable.

147/1  113   salt      2     3 attempts for a good salinity reading. Salinity as well as oxygen and
                             nutrients are acceptable.

147/1  114   salt      2     3 attempts for a good salinity reading. Salinity as well as oxygen and
                             nutrients are acceptable.

147/1  115   salt      2     Salinity cap came off with lid before wiping. Significant oscillations in second
                             to last decimal place for majority of bottles. Unknown cause. Salinity as well
                             as oxygen and nutrients are acceptable.

147/1  118   salt      2     Salinity bottle improperly sealed by sampler. Salinity is a little high, within the
                             accuracy of the measurement. Salinity as well as oxygen and nutrients are
                             acceptable.

147/1  119   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 6 attempts
                             for a good salinity reading. Lid came off with cap before wiping. First reading
                             resolved salinity discrepancy. Salinity as well as oxygen and nutrients are
                             acceptable.

147/1  121   salt      2     3 attempts for a good salinity reading. First reading gave better agreement
                             with CTD and adjoining stations. Salinity as well as oxygen and nutrients are
                             acceptable.

147/1  122   salt      2     4 attempts for a good salinity reading. First reading gave better agreement
                             with CTD and adjoining stations. Salinity as well as oxygen and nutrients are
                             acceptable.

147/1  124   salt      2     3 attempts for a good salinity reading. First reading gave better agreement
                             with CTD and adjoining stations. Salinity as well as oxygen and nutrients are
                             acceptable.

147/1  132   CTDT2     3     CTDT2 unstable secondary temperature reading vs. CTDT1/SBE35T, code
                             questionable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
147/1  135   CTDT2     3     CTDT2 unstable secondary temperature reading vs. CTDT1/SBE35T, code
                             questionable.

148/1  105   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 5 attempts
                             for a good salinity reading. First reading resolved salinity difference. Salinity
                             as well as oxygen and nutrients are acceptable.

148/1  107   salt      4     Bottle salinity is high compared with CTD and adjoining stations. Cap came
                             off with lid before wiping. 3 attempts for a good salinity reading. Code salinity
                             bad; oxygen and nutrients are acceptable.

148/1  110   salt      2     Bottle salinity is high compared with CTD and adjoining stations. Excessive
                             flushes needed to clear air bubbles throughout sample analysis. 4 attempts
                             for a good salinity reading. First reading resolved salinity difference. Salinity
                             as well as oxygen and nutrients are acceptable.

148/1  113   o2        2     Check oxygen data. Oxygen as well as salinity and nutrients are acceptable.

148/1  127   CTDT1     3     CTDT1 unstable reading vs. CTDT2/SBE35RT, code questionable.

148/1  128   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

148/1  128   salt      2     Salinity cap came off with lid before wiping. Salinity as well as oxygen and
                             nutrients are acceptable.

148/1  130   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

148/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

149/1  101   salt      2     Bottle salinity is high compared with CTD and adjoining stations. Within
                             accuracy of measurement, 0.001. Salinity, oxygen and nutrients are
                             acceptable.

149/1  103   bottle    9     At the end of the cast, found that the spigot was no longer on the bottle. No
                             samples drawn.

149/1  104   po4       2     PO4 low 0.02 compared with adjoining stations, looks okay on Redfield ratio
                             plot. Corresponding feature in oxygen and salinity. Analyst: "No analytical
                             errors noted." Within accuracy of the measurement, nutrients as well as
                             salinity and oxygen are acceptable.

149/1  104   salt      2     Bottle salinity is high compared with CTD and adjoining stations. Within
                             accuracy of measurement, 0.001. Salinity, oxygen and nutrients are
                             acceptable.

149/1  107   salt      4     Bottle salinity is low compared with CTD and adjoining stations. Appears that
                             salinity was run too fast, not enough flushing time between previous sample
                             and this sample. Code salinity bad.

149/1  109   salt      2     Salinity thimble came out with cap. Salinity as well as oxygen and nutrients
                             are acceptable.

149/1  111   salt      4     Salinity thimble popped out as cap was removed. Salinity is high compared
                             with the CTD and adjoining stations, appears there was some contamination. Within 
                             the accuracy of the measurement, and ˜0.001 high. Code salinity bad,
                             oxygen and nutrients are acceptable.

149/1  121   salt      2     Salinity thimble popped out before bottle neck was wiped. Salinity is a little
                             high, but within the accuracy of the measurement.

149/1  124   salt      2     3 attempts for a good salinity reading. Salinity thimble popped out with
                             cap. First reading resolved salinity difference. Salinity as well as oxygen and
                             nutrients are acceptable.

149/1  126   CTDT1     3     CTDT1 unstable primary temperature reading vs. CTDT2/SBE35T, code
                             questionable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
149/1  129   bottle    3     Lanyard hooked the bottle on recovery, bottle opened. Salinity, oxygen and
                             nutrients were drawn. Gas samples other than oxygen were not drawn.

149/1  129   o2        4     Oxygen high compared with CTD, sample compromised when bottle opened. Code oxygen 
                             questionable, salinity and nutrients are acceptable.

149/1  130   o2        3     Oxygen low compared with CTD. Analyst: "Good endpoint. No analytical
                             errors found. Suspect sampling error, code oxygen questionable."

149/1  133   o2        2     O2 high, 0.01. Analyst: "Rechecked endpoints, okay." Suspect drawing error,
                             within accuracy of measurement, salinity and nutrients are acceptable.

149/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

150/1  101   salt      3     Bottle salinity is high compared with CTD and adjoining stations. Salinity
                             sample may have been too low for water bath. Just outside of the accuracy of
                             the measurement. Code salinity questionable, oxygen and nutrients are
                             acceptable.

150/1  105   o2        5     Forgot to dispense acid into oxygen sample, sample lost. CTDO not reported
                             since there is no bottle oxygen.

150/1  105   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 3 attempts
                             for a good salinity reading. First reading resolved salinity difference. Salinity
                             as well as nutrients are acceptable.

150/1  109   no2       4     Nutrient sample sat out for an extended period, computer hung-up. Code
                             NO2 bad; salinity, oxygen and the rest of the nutrients are acceptable.

150/1  110   o2        4     Oxygen high compared with CTD. Analyst: "Good endpoint. Analyzed last
                             due to stuck cap, should not have caused the problem, could be sample was
                             spilled. Code oxygen bad."

150/1  113   salt      2     3 attempts for a good salinity reading. First reading resolved salinity
                             difference. Salinity as well as oxygen and nutrients are acceptable.

150/1  130   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

150/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

150/1  135   CTDT1     3     CTDT1 unstable reading vs. CTDT2/SBE35RT, code questionable.

151/1  104   salt      2     Salinity slightly low compared with CTD and stations profile. Within accuracy
                             of measurement. Salinity as well as oxygen and nutrients are acceptable.

151/1  107   salt      2     3 attempts for a good salinity reading. First reading resolved salinity
                             difference. Salinity as well as oxygen and nutrients are acceptable.

151/1  129   salt      2     4 attempts for a good salinity reading. Salinity thimble came off with lid before
                             wiping. First reading resolved salinity difference. Salinity as well as oxygen
                             and nutrients are acceptable.

151/1  131   bottle    2     Missed target depth by 15m.

151/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

151/1  136   CTDOXY    3     CTD data noisy due to rough weather during deployment.

152/1  109   o2        3     Oxygen high compared with CTD. Analyst: "Good endpoint. No analytical
                             errors found. Suspect sampling error, code oxygen questionable."

152/1  110   o2        4     Oxygen appears high compared with CTD and adjoining stations. Sample log
                             tabulates 696 as the flask, oxygen file reports 1093. Tried switching the flask
                             numbers in the data file which did not resolve the problem. Suspect flask
                             1093 was damaged on Station 150. Code oxygen bad, salinity and nutrients
                             are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
152/1  118   salt      2     Bottle salinity is high compared with CTD and adjoining stations. New
                             technique per advice in order to compensate for the temperature difference. 5 
                             attempts for a good salinity reading. Second reading resolved salinity
                             difference. Salinity as well as oxygen and nutrients are acceptable

152/1  126   bottle    2     Bottle was mistakenly tripped as the package was moving, on-the-fly. Salinity
                             and Nutrient are acceptable, oxygen is slightly high and acceptable.

152/1  126   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

152/1  128   o2        2     Oxygen appears high with adjoining stations and SiO3 station profile, agrees
                             with CTDO. Analyst: "Checked oxygen endpoint, okay." Oxygen as well as
                             nutrients are acceptable.

152/1  128   salt      4     3 attempts for a good salinity reading. First reading did not resolve salinity
                             difference. Code salinity bad; oxygen and nutrients are acceptable.

152/1  129   salt      2     3 attempts for a good salinity reading. Salinity thimble came out with cap
                             before wiping. Salinity as well as oxygen and nutrients are acceptable.

152/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

153/2  212   o2        2     Oxygen flask broken, 1276, replaced with 1723.

153/2  219   salt      2     Salinity thimble popped out with cap. Salinity thimble popped out with cap.
                             Salinity as well as oxygen and nutrients are acceptable.

153/2  234   salt      2     3 attempts for a good salinity reading. Salinity as well as oxygen and
                             nutrients are acceptable.

154/1  105   salt      2     3 attempts for a good salinity reading. Salinity as well as oxygen and
                             nutrients are acceptable.

154/1  107   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 3 attempts
                             for a good salinity reading. Thimble came off with lid before wiping. First
                             reading resolved salinity difference. Salinity as well as oxygen and nutrients
                             are acceptable.

154/1  124   salt      2     3 attempts for a good salinity reading. Thimble came off with lid before
                             wiping. First reading resolved salinity difference. Salinity as well as oxygen
                             and nutrients are acceptable.

154/1  129   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

154/1  129   salt      2     Salinity thimble came off with cap before wiping. Salinity is a little high
                             compared with CTD, within the accuracy of the measurement.

154/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

155/1  101   o2        4     Oxygen appears low compared with CTD and adjoining stations and high
                             compared with SiO3. Code oxygen bad, salinity and nutrients are acceptable.

155/1  102   po4       4     PO4 high, ˜0.04, compared with adjoining stations. Analyst: " Unreadable
                             peak, code bad." Code PO4 bad, salinity, oxygen and other nutrients are
                             acceptable. Code PO4 bad, salinity, oxygen and nutrients are acceptable.

155/1  110   o2        4     Oxygen appears high compared with CTD and adjoining stations. Sample log
                             reports 1093 as the flask as does the oxygen file. Removed this flask from
                             service, suspect it was damaged on Station 150 as it has given high points
                             last 3 times it was used. Code oxygen bad, salinity and nutrients are
                             acceptable.

155/1  113   o2        3     Oxygen appears high compared with CTD and adjoining stations and
                             compared with SiO3. Analyst: "Re-checked end point and looks good." There
                             is a low feature in PO4 and NO3 not seen in SiO3. Code oxygen
                             questionable, salinity and nutrients are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
155/1  121   salt      2     Salinity thimble came off with lid before wiping. Salinity, oxygen and nutrients
                             are acceptable.

155/1  123   salt      4     Bottle salinity is low compared with CTD and adjoining stations. Appears to
                             have been drawn from bottle 21. Code salinity bad; oxygen and nutrients are
                             acceptable.

155/1  125   no2       4     Nutrient samples were mis-drawn from bottle 26. Oxygen does not show a
                             "feature". Code nutrients bad, oxygen acceptable.

155/1  125   no3       4    

155/1  125   po4       4    

155/1  125   sio3      4    

155/1  126   salt      4     4 attempts for a good salinity reading. First two reading did not resolve
                             salinity difference. Salinity improperly sealed by thimble; probable
                             contamination. Salinity, oxygen and nutrients are acceptable. Code salinity
                             questionable; oxygen and nutrients are acceptable.

155/1  128   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

155/1  129   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

155/1  133   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

155/1  133   salt      3     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problems noted. Code salinity questionable, oxygen and nutrients
                             are acceptable.

155/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

156/1  105   salt      2     Salinity thimble popped out with cap. Salinity as well as oxygen and nutrients
                             are acceptable.

156/1  112   po4       2     PO4 high, ˜0.03. Analyst: "No analytical errors noted."

156/1  119   salt      2     4 attempts for a good salinity reading. Thimble came out with cap - classic
                             contamination readings. First reading resolved salinity difference. First
                             reading resolved salinity difference. Salinity as well as oxygen and nutrients
                             are acceptable.

156/1  121   o2        2     Oxygen sample ran out of order, swapped with 26. Samples correctly
                             annotated in the file. Oxygen as well as salinity and nutrients are acceptable.

156/1  126   o2        2     Oxygen sample ran out of order, swapped with 21. Samples correctly
                             annotated in the file. Oxygen as well as salinity and nutrients are acceptable.

156/1  135   salt      2     Bottle salinity is low compared with CTD and adjoining stations. Waited the
                             30 seconds for bottle flushing. High salinity feature seen in CTD. Salinity as
                             well as oxygen and nutrients are acceptable.

157/1  101   salt      4     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problem noted. Code salinity bad, oxygen and nutrients are
                             acceptable.

157/1  108   salt      2     Salinity thimble came off with cap before wiping. Salinity as well as oxygen
                             and nutrients are acceptable.

157/1  126   salt      2     Salinity thimble came off with cap before wiping. Salinity as well as oxygen
                             and nutrients are acceptable.

157/1  129   bottle    4     Bottle did not trip as scheduled, mis-tripped. Suspect bottom lanyard was
                             caught upon deployment. Code bottle did not trip as scheduled, all samples
                             bad.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
157/1  129   no2       4    

157/1  129   no3       4    

157/1  129   o2        4     Oxygen draw temperature probe replaced, temperature not taken on this
                             bottle. Draw temp estimated from CTD temperature. Bottle mis-tripped and
                             the analyst thought there was something wrong with the temperature probe. Code    
                             oxygen bad.

157/1  129   po4       4    

157/1  129   salt      4     Bottle salinity is low compared with CTD. Bottle did not trip as scheduled.

157/1  129   sio3      4    

158/1  101   salt      2     03 attempts for a good salinity reading. Salinity thimble came off with cap
                             before wiping. First reading resolved the small salinity difference. Salinity as
                             well as oxygen and nutrients are acceptable.

158/1  106   o2        2     Check oxygen endpoint. Checked & Fixed. Oxygen as well as salinity and
                             nutrients are acceptable.

158/1  109   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

158/1  111   sio3      2     SiO3 low, ˜4, compared with adjoining stations. Looks okay when plotted vs.
                             potential temperature. Analyst: "No analytical problems, data is acceptable."

158/1  116   salt      4     Salinity thimble came off with cap before wiping. Salinity is low compared
                             with the CTD. Code salinity bad, oxygen and nutrients are acceptable.

158/1  118   o2        2     Noisy oxygen curve. Oxygen as well as salinity and nutrients are acceptable.

158/1  124   salt      2     Salinity thimble came off with cap before wiping. Salinity as well as oxygen
                             and nutrients are acceptable.

158/1  128   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

158/1  129   CTDT1     3     CTDT1 unstable reading vs. CTDT2/SBE35RT, code questionable.

158/1  129   salt      4     Salinity thimble came off with cap before wiping. Salinity high compared with
                             CTD. Code salinity bad, oxygen and nutrients are acceptable.

158/1  132   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

158/1  132   salt      2     Bottle salinity is low compared with CTD. No analytical problems noted. Lots
                             of structure seen in the CTD trace, could be the bottle vs. CTD physical
                             difference or bottles not flushed. Salinity as well as oxygen and nutrients are
                             acceptable.

158/1  133   salt      2     Bottle salinity is low compared with CTD. No analytical problems noted. Lots
                             of structure seen in the CTD trace, could be the bottle vs. CTD physical
                             difference or bottles not flushed. Salinity as well as oxygen and nutrients are
                             acceptable.

158/1  136   salt      2     Bottle salinity is high compared with CTD. Salinity as well as oxygen and
                             nutrients are acceptable.

159/1  101   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

159/1  104   o2        3     O2 high, 0.02. Analyst: "Rechecked endpoints, okay." Suspect drawing error,
                             code oxygen questionable, salinity and nutrients are acceptable.

159/1  107   o2        2     Check oxygen Endpoint. Checked & Fixed. Oxygen as well as salinity and
                             nutrients are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
159/1  112   salt      2     3 attempts for a good salinity reading. First reading resolved the salinity
                             difference. Salinity as well as oxygen and nutrients are acceptable.

159/1  121   o2        2     Noisy oxygen curve. Oxygen as well as salinity and nutrients are acceptable.

159/1  129   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

159/1  130   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

159/1  131   CTDT2     3     CTDT2 unstable reading vs. CTDT1/SBE35RT, code questionable.

159/1  131   salt      2     3 attempts for a good salinity reading. First reading resolved the salinity
                             difference. Salinity as well as oxygen and nutrients are acceptable.

159/1  132   reft      3    

159/1  134   CTDT2     3     CTDT2 unstable reading vs. CTDT1/SBE35RT, code questionable.

159/1  135   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

160/1  112   o2        2     Oxygen low compared with adjoining stations and with SiO3 agrees with
                             CTD. Stations 162, 163 also show this feature. Oxygen as well as salinity and
                             nutrients are acceptable.

160/1  113   o2        2     Oxygen low compared with adjoining stations and with SiO3 agrees with
                             CTD. Stations 162, 163 also show this feature. Oxygen as well as salinity and
                             nutrients are acceptable.

160/1  114   bottle    2     Missed target depth by 15m.

160/1  115   salt      2     Salinity thimble popped out with cap. Salinity is slightly low, suspect salinity
                             sample contamination. Code salinity bad, oxygen and nutrients are
                             acceptable.

160/1  119   salt      4     Bottle salinity is high compared with CTD and adjoining stations. 3 attempts
                             for a good salinity reading. Salinity thimble came out with cap - large jump
                             from first reading. First reading resolved some of the salinity difference,
                             suspect salinity sample contamination. Code salinity bad, oxygen and
                             nutrients are acceptable.

160/1  124   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

160/1  125   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

160/1  128   CTDT2     3     CTDT2 unstable secondary temperature reading vs. CTDT1/SBE35T, code
                             questionable.

160/1  131   salt      2     Salinity bottle rim chip found seal compromised - poor sampling technique.
                             Salinity is within accuracy of the measurement. Salinity as well as oxygen
                             and nutrients are acceptable.

160/1  133   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

160/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

160/1  134   salt      2     Bottle salinity is high compared with CTD. 3 attempts for a good salinity
                             reading. First reading resolved some of the salinity difference, gradient area.
                             Salinity as well as oxygen and nutrients are acceptable.

161/1  118   salt      2     3 attempts for a good salinity reading.First reading resolved salinity
                             discrepancy. Salinity as well as oxygen and nutrients are acceptable.

161/1  124   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

161/1  125   CTDT2     3     CTDT2 unstable secondary temperature reading vs. CTDT1/SBE35T, code
                             questionable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
161/1  125   salt      2     6 attempts for a good salinity reading. Thimble came off before wiping. First
                             reading resolved salinity discrepancy. Salinity as well as oxygen and nutrients
                             are acceptable.

161/1  129   salt      2     Salinity thimble came off with cap before wiping. Salinity as well as oxygen
                             and nutrients are acceptable.

161/1  133   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

161/1  133   salt      2     Bottle salinity is low compared with CTD and adjoining stations. CTD is a
                             spiky to ˜100m. Salinity as well as oxygen and nutrients are acceptable.

161/1  134   salt      2     Bottle salinity is low compared with CTD and adjoining stations. CTD is a
                             spiky to ˜100m. Salinity as well as oxygen and nutrients are acceptable.

161/1  135   salt      2     Bottle salinity is low compared with CTD. No analytical problems noted. CTD
                             is a spiky to ˜100m. Salinity as well as oxygen and nutrients are acceptable.

161/1  136   bottle    4     Bottle tripped out of the water. Gas samples were not sampled. Code bottle
                             did not trip as scheduled, salinity and nutrients acceptable.

162/1  105   salt      2     Salinity thimble came off with cap before wiping. Salinity as well as oxygen
                             and nutrients are acceptable.

162/1  111   salt      2     3 attempts for a good salinity reading. Salinity as well as oxygen and
                             nutrients are acceptable.

162/1  112   o2        2     Check oxygen endpoint. Checked & fixed. Oxygen as well as salinity and
                             nutrients are acceptable.

162/1  121   salt      2     3 attempts for a good salinity reading. First reading resolved salinity
                             difference. Salinity as well as oxygen and nutrients are acceptable.

162/1  126   salt      2     Salinity thimble came off with cap before wiping. Salinity as well as oxygen
                             and nutrients are acceptable.

162/1  127   CTDT2     3     CTDT2 gives an unstable reading vs. CTDT1. Appears all three temperature
                             readings had a problem. Code CTDT2 questionable.

162/1  127   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

162/1  132   bottle    2     Bottle 32 was mistakenly tripped with 31, operator error.

162/1  134   bottle    2     Bottle was mistakenly tripped at desired depth of 35 instead of 60, operator
                             error.

162/1  135   bottle    2     Bottle was mistakenly tripped at the surface with bottle 36.

163/1  110   bottle    2     Vent left open. Oxygen, salinity and nutrients are acceptable.

163/1  116   salt      2     Salinity thimble came out with cap. Salinity, oxygen and nutrients are
                             acceptable.

163/1  122   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

163/1  124   CTDT1     3    

163/1  124   CTDT2     3     CTDT2 unstable reading vs. CTDT1/SBE35RT, code questionable.

163/1  124   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

163/1  124   salt      2     Salinity thimble came out with cap. Salinity, oxygen and nutrients are
                             acceptable.

163/1  128   sio3      5     Autoanalyzer error, SiO3 lost.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
163/1  129   salt      2     4 attempts for a good salinity reading. Thimble popped out with cap -classic
                             contamination readings. Salinity, oxygen and nutrients are acceptable.

163/1  129   sio3      5     Autoanalyzer error, SiO3 lost.

163/1  130   sio3      5     Autoanalyzer error, SiO3 lost.

163/1  131   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

163/1  131   sio3      5     Autoanalyzer error, SiO3 lost.

163/1  132   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

163/1  132   sio3      5     Autoanalyzer error, SiO3 lost.

163/1  133   sio3      5     Autoanalyzer error, SiO3 lost.

163/1  134   sio3      5     Autoanalyzer error, SiO3 lost.

163/1  135   sio3      5     Autoanalyzer error, SiO3 lost.

163/1  136   sio3      5     Autoanalyzer error, SiO3 lost.

164/1  101   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 3 attempts
                             for a good salinity reading. First reading resolves salinity difference. Salinity,
                             oxygen and nutrients are acceptable.

164/1  111   salt      2     3 attempts for a good salinity reading. First reading resolves salinity
                             difference. Salinity, oxygen and nutrients are acceptable.

164/1  124   salt      2     3 attempts for a good salinity reading. Salinity, oxygen and nutrients are
                             acceptable.

164/1  135   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

164/1  135   salt      2     Bottle salinity is low compared with CTD. No analytical problems noted,
                             gradient. Salinity, oxygen and nutrients are acceptable.

165/2  201   salt      2     Bottle salinity is high compared with CTD and adjoining stations. Salinity was
                             run a little fast between flushes, within accuracy of measurement. Salinity,
                             oxygen and nutrients are acceptable.

165/2  202   salt      2     3 attempts for a good salinity reading. First reading resolved salinity
                             difference. Salinity, oxygen and nutrients are acceptable.

165/2  205   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 3 attempts
                             for a good salinity reading. First reading gave a better agreement with the
                             CTD and adjoining stations, still a little high, within accuracy of the
                             measurement. Salinity, oxygen and nutrients are acceptable.

165/2  227   CTDT2     3     CTDT2 unstable reading vs. CTDT1/SBE35RT, code questionable.

165/2  230   CTDT2     3     CTDT2 unstable reading vs. CTDT1/SBE35RT, code questionable.

165/2  236   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

166/1  101   o2        2     Strange oxygen endpoint. Oxygen, salinity and nutrients are acceptable.

166/1  103   salt      2     3 attempts for a good salinity reading. Salinity thimble came off with cap
                             before wiping. Readings were averaged appropriately. Salinity, oxygen and
                             nutrients are acceptable.

166/1  104   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

166/1  105   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
166/1  106   salt      2     3 attempts for a good salinity reading. Readings were averaged
                             appropriately. Salinity, oxygen and nutrients are acceptable.

166/1  110   salt      2     3 attempts for a good salinity reading. Readings were averaged
                             appropriately. Salinity, oxygen and nutrients are acceptable.

166/1  114   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

166/1  117   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

166/1  125   salt      2     3 attempts for a good salinity reading. Salinity thimble came off with cap
                             before wiping. First reading resolved salinity difference. Salinity, oxygen and
                             nutrients are acceptable.

166/1  132   salt      2     5 attempts for a good salinity reading. Thimble came off with cap before
                             wiping. First reading resolved salinity difference. Salinity, oxygen and
                             nutrients are acceptable.

166/1  134   salt      2     3 attempts for a good salinity reading. Thimble came off with cap before
                             wiping. Readings were averaged appropriately. Salinity, oxygen and nutrients
                             are acceptable.

167/1  104   o2        2     Oxygen appears high compared with adjoining station profiles. SiO3
                             relationship is acceptable. Oxygen, salinity and nutrients are acceptable.

167/1  105   o2        2     Oxygen appears high compared with adjoining station profiles. SiO3
                             relationship is acceptable. Oxygen, salinity and nutrients are acceptable.

167/1  106   o2        2     Oxygen appears high compared with adjoining station profiles. SiO3
                             relationship is acceptable. Oxygen, salinity and nutrients are acceptable.

167/1  108   salt      4     Bottle salinity is high compared with CTD and adjoining stations. Salinity
                             thimble came out with cap. Readings very erratic. 4 attempts for a good
                             salinity reading. First reading resulted in better agreement. Code salinity bad,
                             oxygen and nutrients are acceptable.

167/1  118   bottle    4     Bottle did not trip as scheduled, mis-tripped. Suspect bottom lanyard was
                             caught upon deployment. Code bottle did not trip as scheduled, all samples
                             bad.

167/1  118   no2       4    

167/1  118   no3       4    

167/1  118   o2        4     Oxygen draw temperature appears reasonable, 0.2 higher than bottle below
                             and above. Code oxygen bad, bottle did not trip as scheduled and all
                             samples bad.

167/1  118   po4       4    

167/1  118   salt      4     Bottle salinity is low compared with CTD. Bottle did not trip as scheduled.

167/1  118   sio3      4    

167/1  126   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

167/1  126   salt      4     4 attempts for a good salinity reading. Salinity thimble came out with cap -
                             classic contamination readings. First reading was used and other 3 readings
                             would result in a higher salinity. Code salinity bad, oxygen and nutrients are
                             acceptable.

167/1  133   salt      2     Bottle salinity is low compared with CTD. No analytical problems noted.
                             Gradient, salinity, oxygen and nutrients are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
168/1  108   salt      2     Salinity thimble came out with cap. Salinity, oxygen and nutrients are
                             acceptable.

168/1  109   o2        2     Check oxygen endpoint. Checked & fixed. Oxygen, salinity and nutrients are
                             acceptable.

168/1  135   salt      2     Bottle salinity is low compared with CTD. Structure seen in CTD. Salinity,
                             oxygen and nutrients are acceptable.

169/2  203   o2        2     Oxygen high compared with adjoining stations and CTD. Deep SiO3 also
                             higher than adjoining stations. Oxygen, salinity and nutrients are acceptable.

169/2  205   salt      4     Bottle salinity is high compared with CTD and adjoining stations. 3 attempts
                             for a good salinity reading. Additional readings did not resolve salinity
                             difference. Thimble came out with cap - large jump DOWN after first reading very
                             strange. Code salinity bad, oxygen and nutrients are acceptable.

169/2  215   salt      2     3 attempts for a good salinity reading. The appropriate average was used.
                             Salinity, oxygen and nutrients are acceptable.

170/1  110   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 3 attempts
                             for a good salinity reading. First reading resolved salinity difference. Salinity,
                             oxygen and nutrients are acceptable.

170/1  111   o2        2     Maybe a bad endpoint? Checked end point, OK. Oxygen agreed well on
                             SiO3 relationship plot. Oxygen, salinity and nutrients are acceptable.

170/1  125   salt      2     3 attempts for a good salinity reading. First reading resolved salinity
                             difference. Salinity, oxygen and nutrients are acceptable.

170/1  126   CTDT1     3     CTDT1 unstable primary temperature reading vs. CTDT2/SBE35T, code
                             questionable.

170/1  127   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

170/1  130   o2        5     Sample lost. No stir bar.

170/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

170/1  134   salt      2     Bottle salinity is high compared with CTD. 5 attempts for a good salinity
                             reading. First reading resolved salinity difference. Salinity, oxygen and
                             nutrients are acceptable.

171/1  101   o2        2     Oxygen appears low compared with adjoining stations, the feature is also
                             seen in SiO3 and salinity. Oxygen, salinity and nutrients are acceptable.

171/1  102   o2        2     Oxygen appears low compared with adjoining stations, the feature is also
                             seen in SiO3 and salinity. Oxygen, salinity and nutrients are acceptable.

171/1  105   salt      3     Salinity low compared with adjoining stations and CTD. No analytical
                             problems noted. Code salinity questionable, oxygen and nutrients are
                             acceptable.

171/1  107   salt      3     Salinity low compared with adjoining stations and CTD. No analytical
                             problems noted. Code salinity questionable, oxygen and nutrients are
                             acceptable.

171/1  110   o2        3     Oxygen is high compared with CTD and adjoining stations. No analytical
                             problems noted. Analyst: "Endpoint okay." Code oxygen questionable,
                             salinity and nutrients are acceptable.

171/1  127   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

171/1  129   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

171/1  131   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
171/1  131   salt      2     Bottle salinity is high compared with CTD. No analytical problems noted,
                             gradient. Salinity, oxygen and nutrients are acceptable.

171/1  132   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

171/1  135   CTDT1     3     CTDT1 unstable primary temperature reading vs. CTDT2/SBE35T, code
                             questionable.

172/1  101   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 4 attempts
                             for a good salinity reading. Large jumps each of first three readings cause
                             not clear. First reading resolved salinity difference. Salinity, oxygen and
                             nutrients are acceptable.

172/1  108   o2        2     Oxygen high compared with CTD and adjoining stations. SiO3 relationship
                             looks reasonable. Analyst: "Endpoint okay." Oxygen, salinity and nutrients
                             are acceptable.

172/1  108   salt      2     3 attempts for a good salinity reading. Salinity slightly low, within accuracy of
                             measurement. Salinity, oxygen and nutrients are acceptable.

172/1  119   salt      2     4 attempts for a good salinity reading. First reading resolved salinity
                             discrepancy. Thimble popped out before neck was cleaned - large jump
                             between readings. First reading resolved salinity difference. Salinity, oxygen
                             and nutrients are acceptable.

172/1  129   salt      2     3 attempts for a good salinity reading. Readings were within accuracy of the
                             measurement. Salinity, oxygen and nutrients are acceptable.

172/1  132   salt      2     Bottle salinity is low compared with CTD. No analytical problems noted.
                             Salinity, oxygen and nutrients are acceptable.

172/1  134   o2        2     Oxygen endpoint questionable. Analyst: "Endpoint noisy but okay." Oxygen,
                             salinity and nutrients are acceptable.

172/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

172/1  134   salt      2     Bottle salinity is high compared with CTD. No analytical problems noted.
                             Salinity, oxygen and nutrients are acceptable.

172/1  135   salt      2     Bottle salinity is low compared with CTD. No analytical problems noted,
                             Structure in CTD profile. Salinity, oxygen and nutrients are acceptable.

173/2  205   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 3 attempts
                             for a good salinity reading. Thimble came off with cap before wiping. First
                             reading did not completely resolve salinity difference, within accuracy of
                             measurement, since there were so many problems, code salinity bad, oxygen
                             and nutrients acceptable.

173/2  206   o2        2     Pulled oxygen sample early, no endpoint. Oxygen, salinity and nutrients are
                             acceptable.

173/2  214   o2        2     Oxygen redraw sample. Oxygen, salinity and nutrients are acceptable.

173/2  215   o2        2     Oxygen high on SiO3 plot, no analytical problems noted, SiO3 agrees with
                             adjoining stations and O2 agrees with CTD and adjoining stations. Oxygen,
                             salinity and nutrients are acceptable.

173/2  225   salt      2     Salinity thimble came off with cap before wiping. Salinity abnormally salty
                             under thimble rim, possibly contaminated. Salinity is a little high, but within
                             accuracy of measurement. Salinity as well as oxygen and nutrients are
                             acceptable.

173/2  230   salt      4     Low water level in salinity bottle, 2 inches below shoulder of bottle. Suspect
                             that this was not sampled for this cast rather was the water from last usage.
                             Code salinity bad, oxygen and nutrients are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
173/2  231   CTDT2     3    

173/2  233   CTDT1     3     CTDT1 unstable reading vs. CTDT2/SBE35RT, code questionable.

173/2  234   salt      2     4 attempts for a good salinity reading. First reading resolved salinity
                             difference, gradient. Salinity, oxygen and nutrients are acceptable.

173/2  235   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

173/2  235   salt      2     Bottle salinity is high compared with CTD. No analytical problems noted,
                             gradient. Salinity, oxygen and nutrients are acceptable.

174/1  102   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

174/1  102   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

174/1  104   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

174/1  117   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable. Salinity 
                             thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

174/1  118   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

174/1  124   o2        5     Forgot stirrer bar, oxygen lost. Salinity and nutrients are acceptable.

174/1  132   salt      2     Bottle salinity is low compared with CTD and adjoining stations. Sampling
                             error, salinity 34 was drawn from 33, 33 from 32 and 32 from 31, data
                             corrected. 3 attempts for a good salinity reading. Salinity, oxygen and
                             nutrients are acceptable.

174/1  133   salt      2     Bottle salinity is low compared with CTD and adjoining stations. Sampling
                             error, salinity 34 was drawn from 33, 33 from 32 and 32 from 31, data
                             corrected. Salinity, oxygen and nutrients are acceptable.

174/1  134   salt      5     Bottle salinity is low compared with CTD and adjoining stations. Salinity
                             thimble came off with cap before wiping. Sampling error, salinity 34 was
                             drawn from 33, 33 from 32 and 32 from 31, data corrected. Salinity lost.
                             Oxygen and nutrients are acceptable.

174/1  136   CTDOXY    3     CTD oxy data noisy.

175/1  101   salt      2     Bottle salinity is high compared with CTD and adjoining stations. Within
                             accuracy of measurement. Salinity, oxygen and nutrients are acceptable.

175/1  106   o2        3     Oxygen appears high, 0.04, versus adjoining stations and SiO3 plot.
                             Analyst: "Rechecked endpoints, okay." Suspect drawing error, code oxygen
                             questionable, salinity and nutrients are acceptable.

175/1  132   CTDT2     3     CTDT2 unstable secondary temperature reading vs. CTDT1/SBE35T, code
                             questionable.

175/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

175/1  136   salt      3     Bottle salinity is high compared with CTD. Bottle tripped before shed wake
                             subsided. Code salinity questionable, oxygen shows similar high
                             disagreement but acceptable, oxygen and nutrients are acceptable.

176/1  102   salt      2     3 attempts for a good salinity reading. Averaged readings resulted in
                             acceptable salinity. Salinity, oxygen and nutrients are acceptable.

176/1  112   o2        2     Oxygen flasks were switched in the box, analyst ran them in the correct order
                             and used the values as written on the Sample Log sheet. Oxygen, salinity
                             and nutrients are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
176/1  113   o2        2     Oxygen flasks were switched in the box, analyst ran them in the correct order
                             and used the values as written on the Sample Log sheet. Oxygen, salinity
                             and nutrients are acceptable.

176/1  114   salt      2     3 attempts for a good salinity reading. First reading resolved salinity
                             difference. Increasing readings are suspicious. Salinity, oxygen and nutrients
                             are acceptable.

176/1  116   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 4 attempts
                             for a good salinity reading. First reading resulted in a acceptable salinity
                             difference. Thimble came out with cap readings very erratic first and fourth
                             matched. Salinity, oxygen and nutrients are acceptable.

176/1  122   o2        2     Oxygen flasks were switched in the box, analyst ran them in the correct order
                             and used the values as written on the Sample Log sheet. Oxygen, salinity
                             and nutrients are acceptable.

176/1  123   no2       9     Sampler error, no water taken from bottle for nutrients.

176/1  123   no3       9     Sampler error, no water taken from bottle for nutrients.

176/1  123   o2        2     Oxygen flasks were switched in the box, analyst ran them in the correct order
                             and used the values as written on the Sample Log sheet. Oxygen, salinity
                             and nutrients are acceptable.

176/1  123   po4       9     Sampler error, no water taken from bottle for nutrients.

176/1  123   sio3      9     Sampler error, no water taken from bottle for nutrients.

176/1  126   CTDT1     3     CTDT1 unstable primary temperature reading vs. CTDT2/SBE35T, code
                             questionable.

176/1  130   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

176/1  131   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

176/1  135   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

176/1  136   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

177/2  201   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 5 attempts
                             for a good salinity reading. First reading resolves salinity difference. Salinity,
                             oxygen and nutrients are acceptable.

177/2  205   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

177/2  206   bottle    2     Missed target depth by 20m, 2065 versus 2045.

177/2  231   CTDT1     3     CTDT1 unstable primary temperature reading vs. CTDT2/SBE35T, code
                             questionable.

177/2  235   salt      2     Salinity appears much higher than adjoining stations, agrees with CTD. Feature is 
                             not seen in oxygen or nutrients. Salinity, oxygen and nutrients are acceptable.

178/1  101   o2        2     Bottle oxygen seems low. kms: "Oxygen agrees with adjoining stations and
                             has a good relationship with SiO3. No analytical problems noted. Oxygen,
                             salinity and nutrients are acceptable."

178/1  108   o2        3     O2 high, 0.02. Analyst: "Rechecked endpoints, okay." Suspect drawing error,
                             code oxygen questionable, salinity and nutrients are acceptable.

178/1  108   salt      2     3 attempts for a good salinity reading. Averaged values are acceptable. Salinity 
                             and nutrients are acceptable.

178/1  111   o2        2     Oxygen end point looks way off; endpoint corrected. Oxygen, salinity and
                             nutrients are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
178/1  112   salt      2     3 attempts for a good salinity reading. Averaged values are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

178/1  130   salt      4     Bottle salinity is high compared with CTD and adjoining stations. Salinity
                             mis-drawn from bottle 31. Code salinity bad, oxygen and nutrients are
                             acceptable.

178/1  131   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

178/1  136   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

179/1  104   o2        3     O2 high, 0.03. Analyst: "Rechecked endpoints, okay." Suspect drawing error,
                             code oxygen questionable, salinity and nutrients are acceptable.

179/1  104   salt      2     Salinity thimble came out with cap. Salinity and nutrients are acceptable.

179/1  105   salt      2     3 attempts for a good salinity reading. Thimble popped out before neck
                             wiped. Averaged readings were acceptable. Salinity, oxygen and nutrients
                             are acceptable.

179/1  109   ctdc1     3    

179/1  109   ctdc2     3    

179/1  109   ctds1     3    

179/1  109   ctds2     3    

179/1  109   salt      2     Salinity slightly high compared with CTD, agrees with adjoining stations,
                             gradient. Data shows that CTD was measuring the saltier deeper water when
                             the bottle tripped. Salinity, oxygen and nutrients are acceptable, code CTD
                             salinity questionable.

179/1  114   salt      2     Salinity thimble popped out before neck wiped. Salinity, oxygen and nutrients
                             are acceptable.

179/1  127   salt      2     Salinity low compared with adjoining stations vs. theta. Feature also seen in
                             oxygen and CTD, not in nutrients. Salinity, oxygen and nutrients are
                             acceptable.

179/1  128   salt      2     Salinity low compared with adjoining stations vs. theta. Feature also seen in
                             oxygen and CTD, not in nutrients. Salinity, oxygen and nutrients are
                             acceptable.

179/1  130   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

179/1  134   salt      2     Salinity thimble popped out with cap. Salinity, oxygen and nutrients are
                             acceptable.

179/1  135   CTDT2     3     CTDT2 unstable secondary temperature reading vs. CTDT1/SBE35T, code
                             questionable.

180/1  101   o2        2     Checked and corrected oxygen endpoint. Oxygen, salinity and nutrients are
                             acceptable.

180/1  104   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 4 attempts
                             for a good salinity reading. First reading resolved salinity difference. Salinity,
                             oxygen and nutrients are acceptable.

180/1  106   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 4 attempts
                             for a good salinity reading. First reading resolved salinity difference. Salinity,
                             oxygen and nutrients are acceptable.

180/1  107   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 4 attempts
                             for a good salinity reading. Second reading resolved salinity difference.
                             Salinity, oxygen and nutrients are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
180/1  113   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 4 attempts
                             for a good salinity reading. First reading resolved salinity difference. Salinity,
                             oxygen and nutrients are acceptable.

180/1  117   o2        2     Checked and corrected oxygen endpoint. Oxygen, salinity and nutrients are
                             acceptable.

180/1  125   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

180/1  126   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

180/1  127   o2        2     Checked and corrected oxygen endpoint. Oxygen, salinity and nutrients are
                             acceptable.

180/1  129   o2        2     Checked and corrected oxygen endpoint. Oxygen, salinity and nutrients are
                             acceptable.

181/1  103   bottle    2     Some intended depths missed, 2533, duplicate trips at 1165, bottles 14 & 15,
                             965 intended depth missed, 9 & 10 are duplicates, duplicate trips at the
                             surface.

181/1  109   salt      2     3 attempts for a good salinity reading. Additional readings did not resolve the
                             small salinity difference. Salinity, oxygen and nutrients are acceptable.

181/1  116   salt      2     3 attempts for a good salinity reading. Thimble came off with cap before
                             wiping. First reading produced good agreement. Salinity, oxygen and nutrients
                             are acceptable.

181/1  121   bottle    2     Bottle is leaking from bottom, bad bottom seal. Oxygen, salinity and nutrients
                             are acceptable.

181/1  127   CTDT2     3     CTDT2 unstable secondary temperature reading vs. CTDT1/SBE35T, code
                             questionable.

181/1  131   CTDT1     3     CTDT1 unstable primary temperature reading vs. CTDT2/SBE35T, code
                             questionable.

182/1  110   o2        2     Stepped oxygen endpoint, checked OK. Oxygen, salinity and nutrients are
                             acceptable.

182/1  135   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

183/1  103   bottle    9     Faulty nipple on bottle broke off. No samples were drawn.

183/1  104   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

183/1  124   salt      2     4 attempts for a good salinity reading. Averaged readings are acceptable. Salinity, 
                             oxygen and nutrients are acceptable.

183/1  125   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

183/1  126   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

183/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

184/1  102   salt      2     3 attempts for a good salinity reading. First reading resolved small salinity
                             difference. Thimble popped out after cap - erratic readings. Salinity, oxygen
                             and nutrients are acceptable.

184/1  118   salt      2     Salinity thimble popped out with cap. Salinity, oxygen and nutrients are
                             acceptable.

184/1  128   salt      2     Feature in salinity not seen in oxygen or nutrients, agrees with CTD. Salinity,
                             oxygen and nutrients are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
184/1  129   salt      2     Feature in salinity not seen in oxygen or nutrients, agrees with CTD. Salinity,
                             oxygen and nutrients are acceptable.

184/1  130   o2        2     Oxygen endpoint plot noisy. Analyst: "Endpoint okay." Oxygen, salinity and
                             nutrients are acceptable.

184/1  130   salt      2     Feature in salinity not seen in oxygen or nutrients, agrees with CTD. Salinity,
                             oxygen and nutrients are acceptable.

184/1  131   salt      2     Bottle salinity is low compared with CTD. CTD package shed wake in
                             gradient area causing difference. Salinity, oxygen and nutrients are
                             acceptable.

184/1  135   salt      2     Bottle salinity is high compared with CTD. CTD package shed wake in
                             gradient area causing difference. Salinity, oxygen and nutrients are
                             acceptable.

184/1  136   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

185/2  212   o2        2     Oxygen looks high. Flasks for 12 and 13 were switched in the box, followed
                             sample log. Oxygen, salinity and nutrients are acceptable.

185/2  213   o2        2     Oxygen looks low. Flasks for 12 and 13 were switched in the box, followed
                             sample log. Oxygen, salinity and nutrients are acceptable.

185/2  222   o2        2     Oxygen flasks 22 & 23 switched, must have occurred during analysis of last
                             station, just put in the box incorrectly. Oxygen, salinity and nutrients are
                             acceptable.

185/2  223   o2        2     Oxygen flasks 22 & 23 switched, must have occurred during analysis of last
                             station, just put in the box incorrectly. Oxygen, salinity and nutrients are
                             acceptable.

185/2  228   o2        2     Bad oxygen endpoint?. Analyst: "Endpoint fixed and resubmitted." PN:
                             Oxygen looks reasonable. Oxygen, salinity and nutrients are acceptable.

185/2  233   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

185/2  235   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

185/2  235   salt      2     Bottle salinity is low compared with CTD. Salinity feature seen in CTD.
                             Salinity, oxygen and nutrients are acceptable.

186/1  108   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

186/1  112   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

186/1  119   salt      2     Salinity thimble came off with cap before wiping. Salinity is slightly high,
                             within accuracy of measurement. Salinity, oxygen and nutrients are
                             acceptable.

186/1  125   o2        2     Corrected oxygen endpoint. Oxygen, salinity and nutrients are acceptable.

186/1  125   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

186/1  125   salt      2     4 attempts for a good salinity reading. Additional readings did not resolve
                             salinity difference. Code salinity bad, oxygen and nutrients are acceptable.

186/1  127   salt      2     Bottle salinity is high compared with CTD. No analytical problems noted,
                             gradient. Salinity, oxygen and nutrients are acceptable.

186/1  128   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

186/1  134   CTDT2     3     CTDT2 unstable secondary temperature reading vs. CTDT1/SBE35T, code
                             questionable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
186/1  134   salt      2     Bottle salinity is low compared with CTD. No analytical problems noted,
                             gradient. Salinity, oxygen and nutrients are acceptable.

186/1  135   salt      2     3 attempts for a good salinity reading. Additional readings did not resolve
                             small salinity difference. Salinity, oxygen and nutrients are acceptable.

187/1  103   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 3 attempts
                             for a good salinity reading. First reading resolved salinity difference. Salinity,
                             oxygen and nutrients are acceptable.

187/1  104   o2        3     Oxygen high, 0.04ml/l, compared with CTD and adjoining stations. Analyst:
                             "Endpoint Okay." Code oxygen questionable, salinity and nutrients
                             acceptable.

187/1  104   salt      2     5 attempts for a good salinity reading. Averaged readings are acceptable. Salinity 
                             and nutrients are acceptable, oxygen is questionable.

187/1  126   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

187/1  130   CTDT2     3     CTDT2 unstable secondary temperature reading vs. CTDT1/SBE35T, code
                             questionable.

188/1  103   salt      3     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problems noted, suspect sampling problems. Code salinity
                             questionable, oxygen and nutrients acceptable.

188/1  105   salt      2     Bottle salinity is high compared with CTD and adjoining stations. Salinity
                             thimble popped out with cap - large jump first to second readings. 3 attempts
                             for a good salinity reading. First reading resolved salinity difference. Salinity,
                             oxygen and nutrients are acceptable.

188/1  108   salt      3     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problems noted. Code salinity questionable, oxygen and nutrients
                             acceptable.

188/1  112   o2        2     Oxygen flasks were switched in box, followed order on Sample Log. Oxygen,
                             salinity and nutrients are acceptable.

188/1  113   o2        2     Oxygen flasks were switched in box, followed order on Sample Log. Oxygen,
                             salinity and nutrients are acceptable.

188/1  113   salt      2     Salinity thimble came out with cap. Salinity, oxygen and nutrients are
                             acceptable.

188/1  114   salt      2     Salinity thimble came out with cap. Salinity, oxygen and nutrients are
                             acceptable.

188/1  118   o2        2     Oxygen end point was strange; corrected. Oxygen, salinity and nutrients are
                             acceptable.

188/1  126   o2        2     Oxygen end point was strange; corrected. Oxygen, salinity and nutrients are
                             acceptable.

188/1  131   ctds      3    

188/1  131   salt      2     Bottle salinity is low compared with CTD. Appears that bottle was tripped
                             before the water from below dissipated. Code CTD salinity questionable,
                             salinity, oxygen and nutrients are acceptable.

188/1  132   ctds      3    

188/1  132   salt      2     Bottle salinity is high compared with CTD. Appears that bottle was tripped
                             before the water from below dissipated. Code CTD salinity questionable,
                             salinity, oxygen and nutrients are acceptable.

188/1  133   ctds      3    


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
188/1  133   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

188/1  133   salt      2     Bottle salinity is low compared with CTD. Appears that bottle was tripped
                             before the water from below did not dissipate. Code CTD salinity
                             questionable, salinity, oxygen and nutrients are acceptable.

189/2  202   salt      2     3 attempts for a good salinity reading. First reading resolved salinity
                             difference. Salinity, oxygen and nutrients are acceptable.

189/2  204   salt      2     3 attempts for a good salinity reading. Thimble came off with cap before
                             wiping. First reading resolved salinity difference. Salinity, oxygen and
                             nutrients are acceptable.

189/2  205   salt      2     Thimble came off with cap before wiping. Salinity, oxygen and nutrients are
                             acceptable.

189/2  208   salt      2     3 attempts for a good salinity reading. First reading resolved salinity
                             difference. Salinity, oxygen and nutrients are acceptable.

189/2  228   o2        2     Curvy endpoint chart, but ok endpoint. Oxygen, salinity and nutrients are
                             acceptable.

189/2  229   salt      4     Bottle salinity is low compared with CTD and adjoining stations. Operator
                             error, inaccurate reading, analyzed 28 twice, paint fumes dulled operations.
                             Code salinity bad, oxygen and nutrients are acceptable.

189/2  234   salt      4     3 attempts for a good salinity reading. Thimble came off with cap before
                             wiping. Additional readings did not resolve salinity difference. Code salinity
                             bad, oxygen and nutrients are acceptable.

189/2  235   CTDT1     3     CTDT1 unstable primary temperature reading vs. CTDT2/SBE35T, code
                             questionable.

190/1  115   salt      2     3 attempts for a good salinity reading. First reading resolved salinity
                             difference. Salinity, oxygen and nutrients are acceptable.

190/1  119   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

190/1  128   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

190/1  133   salt      2     Bottle salinity is low compared with CTD. Gradient area. Salinity, oxygen and
                             nutrients are acceptable.

191/1  101   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 4 attempts
                             for a good salinity reading. First reading resolved salinity difference. Salinity,
                             oxygen and nutrients are acceptable.

191/1  110   sio3      3     SiO3 low, 2um/l, with adjoining stations. Analyst: "No analytical errors
                             noted." Within accuracy of measurement. Nutrients. oxygen and salinity are
                             acceptable.

191/1  111   sio3      3     SiO3 low, 2um/l, with adjoining stations. Analyst: "No analytical errors
                             noted." Within accuracy of measurement. Nutrients. oxygen and salinity are
                             acceptable.

191/1  118   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 3 attempts
                             for a good salinity reading. First reading resolved salinity difference. Salinity,
                             oxygen and nutrients are acceptable.

191/1  123   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

191/1  124   salt      2     4 attempts for a good salinity reading. First reading resolved salinity
                             difference. Salinity, oxygen and nutrients are acceptable.

191/1  128   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
191/1  131   salt      2     Bottle salinity is low compared with CTD. 3 attempts for a good salinity
                             reading. Additional reading does not resolve salinity difference. Gradient,
                             salinity, oxygen and nutrients are acceptable.

191/1  132   o2        2     Fixed oxygen endpoint. Oxygen, salinity and nutrients are acceptable.

191/1  133   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

191/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

191/1  134   salt      2     Bottle salinity is high compared with CTD. Gradient, salinity, oxygen and
                             nutrients are acceptable.

192/1  107   salt      4     Bottle salinity is high compared with CTD and adjoining stations. 3 attempts
                             for a good salinity reading. Additional readings did not resolve the salinity
                             difference. Code salinity bad, oxygen and nutrients are acceptable.

192/1  109   bottle    2     Double trip with bottle 10, operator error. Salinity, oxygen and nutrients are
                             acceptable.

192/1  113   salt      2     3 attempts for a good salinity reading. Additional readings would make
                             salinity lower. Within accuracy of measurement. Salinity, oxygen and
                             nutrients are acceptable.

192/1  127   CTDT1     3     CTDT1 unstable primary temperature reading vs. CTDT2/SBE35T, code
                             questionable.

193/1  101   po4       2     PO4 appears high deep with adjoining stations. Analyst: "N:P rations look
                             okay, run looks good-no analytical errors noted. RMNS and deep check
                             standard 0.02-0.03 high for 193. Nutrients, oxygen and salinity are
                             acceptable.

193/1  101   salt      2     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problems noted, just outside of accuracy of measurement. Salinity,
                             oxygen and nutrients are acceptable.

193/1  102   po4       2     PO4 appears high deep with adjoining stations. Analyst: "N:P rations look
                             okay, run looks good-no analytical errors noted. RMNS and deep check
                             standard 0.02-0.03 high for 193. Nutrients, oxygen and salinity are
                             acceptable.

193/1  103   o2        3     Oxygen high, 0.02ml/l, compared with CTD, SiO3 and adjoining stations.
                             Analyst: "Endpoint good." Code oxygen questionable, salinity and nutrients
                             acceptable.

193/1  103   po4       2     PO4 appears high deep with adjoining stations. Analyst: "N:P rations look
                             okay, run looks good-no analytical errors noted. RMNS and deep check
                             standard 0.02-0.03 high for 193. Nutrients, oxygen and salinity are
                             acceptable.

193/1  104   po4       2     PO4 appears high deep with adjoining stations. Analyst: "N:P rations look
                             okay, run looks good-no analytical errors noted. RMNS and deep check
                             standard 0.02-0.03 high for 193. Nutrients, oxygen and salinity are
                             acceptable.

193/1  105   po4       2     PO4 appears high deep with adjoining stations. Analyst: "N:P rations look
                             okay, run looks good-no analytical errors noted. RMNS and deep check
                             standard 0.02-0.03 high for 193. Nutrients, oxygen and salinity are
                             acceptable.

193/1  106   po4       2     PO4 appears high deep with adjoining stations. Analyst: "N:P rations look
                             okay, run looks good-no analytical errors noted. RMNS and deep check
                             standard 0.02-0.03 high for 193. Nutrients, oxygen and salinity are
                             acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
193/1  107   po4       2     PO4 appears high deep with adjoining stations. Analyst: "N:P rations look
                             okay, run looks good-no analytical errors noted. RMNS and deep check
                             standard 0.02-0.03 high for 193. Nutrients, oxygen and salinity are
                             acceptable.

193/1  108   po4       2     PO4 appears high deep with adjoining stations. Analyst: "N:P rations look
                             okay, run looks good-no analytical errors noted. RMNS and deep check
                             standard 0.02-0.03 high for 193. Nutrients, oxygen and salinity are
                             acceptable.

193/1  109   po4       2     PO4 appears high deep with adjoining stations. Analyst: "N:P rations look
                             okay, run looks good-no analytical errors noted. RMNS and deep check
                             standard 0.02-0.03 high for 193. Nutrients, oxygen and salinity are
                             acceptable.

193/1  110   po4       2     PO4 appears high deep with adjoining stations. Analyst: "N:P rations look
                             okay, run looks good-no analytical errors noted. RMNS and deep check
                             standard 0.02-0.03 high for 193. Nutrients, oxygen and salinity are
                             acceptable.

193/1  111   po4       2     PO4 appears high deep with adjoining stations. Analyst: "N:P rations look
                             okay, run looks good-no analytical errors noted. RMNS and deep check
                             standard 0.02-0.03 high for 193. Nutrients, oxygen and salinity are
                             acceptable.

193/1  112   po4       2     PO4 appears high deep with adjoining stations. Analyst: "N:P rations look
                             okay, run looks good-no analytical errors noted. RMNS and deep check
                             standard 0.02-0.03 high for 193. Nutrients, oxygen and salinity are
                             acceptable.

193/1  113   po4       2     PO4 appears high deep with adjoining stations. Analyst: "N:P rations look
                             okay, run looks good-no analytical errors noted. RMNS and deep check
                             standard 0.02-0.03 high for 193. Nutrients, oxygen and salinity are
                             acceptable.

193/1  114   po4       2     PO4 appears high deep with adjoining stations. Analyst: "N:P rations look
                             okay, run looks good-no analytical errors noted. RMNS and deep check
                             standard 0.02-0.03 high for 193. Nutrients, oxygen and salinity are
                             acceptable.

193/1  115   po4       2     PO4 appears high deep with adjoining stations. Analyst: "N:P rations look
                             okay, run looks good-no analytical errors noted. RMNS and deep check
                             standard 0.02-0.03 high for 193. Nutrients, oxygen and salinity are
                             acceptable.

193/1  121   o2        2     Oxygen endpoint off; corrected manually. Oxygen, salinity and nutrients are
                             acceptable.

193/1  129   salt      2     Bottle salinity is high compared with CTD. Gradient, suspect deeper waters
                             did not dissipate before bottle was tripped. Salinity, oxygen and nutrients are
                             acceptable.

193/1  134   salt      2     Bottle salinity is low compared with CTD. Feature seen in CTD trace, suspect
                             deeper waters did not dissipate before bottle was tripped. Salinity, oxygen
                             and nutrients are acceptable.

194/1  110   o2        2     Fixed oxygen endpoint. Oxygen, salinity and oxygen are acceptable.

194/1  119   bottle    4     Bottle mis-tripped. Code bottle did not trip as scheduled, all samples bad.

194/1  119   no2       4    

194/1  119   no3       4    

194/1  119   po4       4    

194/1  119   salt      4     Bottle salinity is high compared with CTD and adjoining stations. Bottle mis-
                             tripped, code bottle did not trip as scheduled, all samples bad.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
194/1  119   sio3      4    

194/1  120   bottle    4     Bottle mis-tripped. Code bottle did not trip as scheduled, all samples bad.

194/1  120   no2       4    

194/1  120   no3       4    

194/1  120   po4       4    

194/1  120   salt      4     Bottle salinity is high compared with CTD and adjoining stations. Bottle mis-
                             tripped, code bottle did not trip as scheduled, all samples bad.

194/1  120   sio3      4    

194/1  133   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

195/1  103   o2        2     Checked and corrected oxygen endpoint. Within the accuracy of the
                             measurement. Oxygen, salinity and nutrients are acceptable.

195/1  104   o2        2     Checked and corrected oxygen endpoint. Within the accuracy of the
                             measurement. Oxygen, salinity and nutrients are acceptable.

195/1  108   o2        3     Oxygen high, 0.04ml/l, compared with adjoining stations and CTD. Salinity
                             and nutrients do not show this feature. Analyst: "Endpoint Okay." Code
                             oxygen questionable, salinity and nutrients are acceptable.

195/1  117   o2        4     Checked and corrected oxygen endpoint. Oxygen is high compared with CTD
                             and adjoining stations. Code oxygen bad, salinity and nutrients are
                             acceptable.

195/1  121   salt      2     Salinity thimble popped out with cap. Salinity, oxygen and nutrients are
                             acceptable.

195/1  124   salt      2     Salinity thimble popped out with cap. Salinity, oxygen and nutrients are
                             acceptable.

195/1  133   o2        2     Oxygen sample was over titrated and back titrated. Oxygen, salinity and
                             nutrients are acceptable.

195/1  133   po4       2     PO4 high compared to adjoining stations. Analyst: "Real feature, no
                             analytical errors noted." Nutrients, salinity and oxygen are acceptable.

195/1  134   po4       2     PO4 high compared to adjoining stations. Analyst: "Real feature, no
                             analytical errors noted." Nutrients, salinity and oxygen are acceptable.

195/1  135   po4       2     PO4 high compared to adjoining stations. Analyst: "Real feature, no
                             analytical errors noted." Nutrients, salinity and oxygen are acceptable.

195/1  136   po4       2     PO4 high compared to adjoining stations. Analyst: "Real feature, no
                             analytical errors noted." Nutrients, salinity and oxygen are acceptable.

196/1  101   po4       2     High N:P ratio plot. Analyst: "Corrected and uploaded file." Nutrients, oxygen
                             and salinity are acceptable.

196/1  102   po4       2     High N:P ratio plot. Analyst: "Corrected and uploaded file." Nutrients, oxygen
                             and salinity are acceptable.

196/1  103   po4       2     High N:P ratio plot. Analyst: "Corrected and uploaded file." Nutrients, oxygen
                             and salinity are acceptable.

196/1  104   po4       2     High N:P ratio plot. Analyst: "Corrected and uploaded file." Nutrients, oxygen
                             and salinity are acceptable.

196/1  105   po4       2     High N:P ratio plot. Analyst: "Corrected and uploaded file." Nutrients, oxygen
                             and salinity are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
196/1  106   po4       2     High N:P ratio plot. Analyst: "Corrected and uploaded file." Nutrients, oxygen
                             and salinity are acceptable.

196/1  107   po4       2     High N:P ratio plot. Analyst: "Corrected and uploaded file." Nutrients, oxygen
                             and salinity are acceptable.

196/1  108   po4       2     High N:P ratio plot. Analyst: "Corrected and uploaded file." Nutrients, oxygen
                             and salinity are acceptable.

196/1  109   po4       2     High N:P ratio plot. Analyst: "Corrected and uploaded file." Nutrients, oxygen
                             and salinity are acceptable.

196/1  110   po4       2     High N:P ratio plot. Analyst: "Corrected and uploaded file." Nutrients, oxygen
                             and salinity are acceptable.

196/1  111   po4       2     High N:P ratio plot. Analyst: "Corrected and uploaded file." Nutrients, oxygen
                             and salinity are acceptable.

196/1  112   po4       2     High N:P ratio plot. Analyst: "Corrected and uploaded file." Nutrients, oxygen
                             and salinity are acceptable.

196/1  113   po4       2     High N:P ratio plot. Analyst: "Corrected and uploaded file." Nutrients, oxygen
                             and salinity are acceptable.

196/1  114   po4       2     High N:P ratio plot. Analyst: "Corrected and uploaded file." Nutrients, oxygen
                             and salinity are acceptable.

196/1  115   o2        2     Checked and corrected oxygen endpoint. Oxygen, salinity and nutrients are
                             acceptable.

196/1  116   o2        2     Bad oxygen graph, but decent endpoint. Oxygen, salinity and nutrients are
                             acceptable.

196/1  117   salt      2     Bottle salinity is low compared with CTD. Gradient, salinity, oxygen and
                             nutrients are acceptable.

196/1  120   no3       3     N:P ratio low. Analyst: "Cadmium column issues." Code NO3 questionable,
                             other nutrients, salinity and oxygen and acceptable.

196/1  120   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

196/1  121   no3       3     N:P ratio low. Analyst: "Cadmium column issues." Code NO3 questionable,
                             other nutrients, salinity and oxygen and acceptable.

196/1  122   no3       3     N:P ratio low. Analyst: "Cadmium column issues." Code NO3 questionable,
                             other nutrients, salinity and oxygen and acceptable.

196/1  123   no3       3     N:P ratio low. Analyst: "Cadmium column issues." Code NO3 questionable,
                             other nutrients, salinity and oxygen and acceptable.

196/1  123   salt      2     3 attempts for a good salinity reading. Second reading would make salinity
                             slightly higher. Within accuracy of the measurement. Salinity, oxygen and
                             nutrients are acceptable.

196/1  124   no3       3     N:P ratio low. Analyst: "Cadmium column issues." Code NO3 questionable,
                             other nutrients, salinity and oxygen and acceptable.

196/1  125   no3       3     N:P ratio low. Analyst: "Cadmium column issues." Code NO3 questionable,
                             other nutrients, salinity and oxygen and acceptable.

196/1  126   no3       3     N:P ratio low. Analyst: "Cadmium column issues." Code NO3 questionable,
                             other nutrients, salinity and oxygen and acceptable.

196/1  127   no3       3     N:P ratio low. Analyst: "Cadmium column issues." Code NO3 questionable,
                             other nutrients, salinity and oxygen and acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
196/1  128   no3       3     N:P ratio low. Analyst: "Cadmium column issues." Code NO3 questionable,
                             other nutrients, salinity and oxygen and acceptable.

196/1  128   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

196/1  129   no3       3     N:P ratio low. Analyst: "Cadmium column issues." Code NO3 questionable,
                             other nutrients, salinity and oxygen and acceptable.

196/1  129   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

196/1  130   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

196/1  133   salt      2     3 attempts for a good salinity reading. Second reading would make salinity
                             slightly higher. Within accuracy of the measurement. Salinity, oxygen and
                             nutrients are acceptable.

196/1  134   salt      2     Bottle salinity is low compared with CTD. Gradient, salinity, oxygen and
                             nutrients are acceptable.

197/1  103   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

197/1  108   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

197/1  113   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

197/1  119   o2        2     Checked and corrected oxygen stepped endpoint. Oxygen, salinity and
                             nutrients are acceptable.

197/1  119   salt      2     4 attempts for a good salinity reading. First reading resolved salinity
                             difference. Salinity, oxygen and nutrients are acceptable.

197/1  120   bottle    2     Slight leak when first opened. Oxygen, salinity and nutrients are acceptable.

197/1  127   o2        2     Checked and corrected oxygen endpoint. Oxygen, salinity and nutrients are
                             acceptable.

197/1  130   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable,
                             other readings do not resolve the small salinity difference. Salinity, oxygen
                             and nutrients are acceptable.

197/1  135   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

197/1  136   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

198/1  102   o2        3     Oxygen bottle high relative to trace and adjoining stations. Analyst: "Checked
                             end point, looks okay." Code oxygen questionable, salinity and nutrients
                             acceptable.

198/1  103   o2        2     Oxygen high compared with CTD, SiO3 and adjoining stations. Analyst:
                             "Endpoint good." Code oxygen questionable, salinity and nutrients
                             acceptable.

198/1  104   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

198/1  109   CTDT1     3     CTDT1 unstable primary temperature reading vs. CTDT2/SBE35T, code
                             questionable.

198/1  113   salt      2     3 attempts for a good salinity reading. First reading resolved salinity
                             discrepancy. Salinity, oxygen and nutrients are acceptable.

198/1  114   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
198/1  116   salt      2     4 attempts for a good salinity reading. 16 Thimble came off with cap before
                             wiping. Averaged readings are acceptable. Salinity, oxygen and nutrients are
                             acceptable.

198/1  119   salt      2     3 attempts for a good salinity reading. Thimble came off with cap before
                             wiping.

198/1  125   o2        2     Fixed oxygen endpoint. Oxygen, salinity and nutrients are acceptable.

198/1  126   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

198/1  128   CTDT2     3     CTDT2 unstable secondary temperature reading vs. CTDT1/SBE35T, code
                             questionable.

198/1  128   salt      2     3 attempts for a good salinity reading. First reading resolved salinity
                             discrepancy. Salinity, oxygen and nutrients are acceptable.

198/1  129   CTDT2     3     CTDT2 unstable secondary temperature reading vs. CTDT1/SBE35T, code
                             questionable.

198/1  131   salt      2     3 attempts for a good salinity reading. First reading resolved salinity
                             discrepancy. Salinity, oxygen and nutrients are acceptable.

198/1  132   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

198/1  135   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

198/1  135   salt      2     Bottle salinity is high compared with CTD. Appears that the deeper water was
                             entrained in the bottle, within accuracy of the measurement. Salinity, oxygen
                             and nutrients are acceptable.

199/1  103   o2        2     Fix endpoint. Oxygen, salinity and nutrients are acceptable.

199/1  105   salt      2     Salinity thimble popped out with cap. Salinity, oxygen and nutrients are
                             acceptable.

199/1  108   o2        2     Oxygen is high compared with CTD, but agrees with bottle data on adjoining
                             stations. Oxygen, salinity and nutrients are acceptable.

199/1  128   salt      2     Bottle salinity is low compared with CTD, gradient. Salinity, oxygen and
                             nutrients are acceptable.

199/1  134   salt      2     4 attempts for a good salinity reading. Salinity thimble popped loose while
                             removing cap - erratic readings with large jumps. First reading resolved
                             salinity discrepancy. Salinity, oxygen and nutrients are acceptable.

199/1  136   CTDT2     3     CTDT2 gives an unstable reading vs. CTDT1. Appears all three temperature
                             readings had a problem. Code CTDT2 questionable.

199/1  136   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

199/1  136   salt      3     Bottle salinity is low compared with CTD and adjoining stations, although it
                             does agree with 201. Appears that the deeper water had not dissipated when
                             the bottle was tripped. Code salinity questionable, oxygen and nutrients are
                             acceptable.

200/1  101   o2        2     Bad oxygen end point, severely stepped; corrected. Oxygen and nutrients
                             are acceptable.

200/1  101   salt      3     Bottle salinity is high compared with CTD and adjoining stations, 0.002. No
                             analytical problems noted. Code salinity questionable, oxygen and nutrients
                             are acceptable.

200/1  101   sio3      2     SiO3 does not agree with adjoining stations. Analyst: "No analytical errors
                             noted. Deep check standard and RMNS values okay." Nutrients, oxygen and
                             salinity are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
200/1  102   sio3      2     SiO3 does not agree with adjoining stations. Analyst: "No analytical errors
                             noted. Deep check standard and RMNS values okay." Nutrients, oxygen and
                             salinity are acceptable.

200/1  103   sio3      2     SiO3 does not agree with adjoining stations. Analyst: "No analytical errors
                             noted. Deep check standard and RMNS values okay." Nutrients, oxygen and
                             salinity are acceptable.

200/1  104   sio3      2     SiO3 does not agree with adjoining stations. Analyst: "No analytical errors
                             noted. Deep check standard and RMNS values okay." Nutrients, oxygen and
                             salinity are acceptable.

200/1  105   salt      3     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problems noted. Could be analyst did not properly switch the
                             bottom or a drawing error. Code salinity questionable, oxygen and nutrients
                             are acceptable.

200/1  105   sio3      2     SiO3 does not agree with adjoining stations. Analyst: "No analytical errors
                             noted. Deep check standard and RMNS values okay." Nutrients, oxygen and
                             salinity are acceptable.

200/1  109   bottle    2     Bottle tripped @2050 instead of intended depth of 2000.

200/1  109   salt      3     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problem noted. Although the intended depth was missed, operator
                             does not claim that the bottle was not properly flushed. Code salinity
                             questionable, oxygen and nutrients are acceptable.

200/1  121   bottle    2     Bottle 21 or 23 was hit at bottom with hook on recovery, some water came
                             out. Oxygen, salinity and nutrients are acceptable.

200/1  123   bottle    2     Bottle 21 or 23 was hit at bottom with hook on recovery, some water came
                             out. Oxygen, salinity and nutrients are acceptable.

200/1  128   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

200/1  134   salt      2     Bottle salinity is high compared with CTD. No analytical problems noted.
                             Salinity, oxygen and nutrients are acceptable.

200/1  135   CTDT1     3     CTDT1 unstable primary temperature reading vs. CTDT2/SBE35T, code
                             questionable.

201/1  105   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

201/1  108   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

201/1  128   o2        2     Oxygen endpoint; corrected and corrected. Oxygen, salinity and nutrients are
                             acceptable.

201/1  129   o2        2     Oxygen endpoint; reviewed and corrected. Oxygen, salinity and nutrients are
                             acceptable.

201/1  135   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

201/1  136   ctdc1     4    

201/1  136   ctdc2     4    

201/1  136   ctds      4    

201/1  136   salt      2     Bottle salinity is high compared with CTD. Appears that the CTD values were
                             out of water. Salinity looks reasonable for surface value. Code CTD salinity
                             bad, salinity, oxygen and nutrients acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
202/1  101   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

202/1  105   po4       3     PO4 low, 0.02uM, vs. potemp. Analyst: "No analytical error noted." Code
                             PO4 questionable, other nutrients, oxygen and salinity are acceptable.

202/1  109   o2        2     Fix oxygen endpoint. Oxygen, salinity and nutrients are acceptable.

202/1  116   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

202/1  118   salt      2     4 attempts for a good salinity reading. First reading resolved salinity
                             discrepancy. Salinity, oxygen and nutrients are acceptable.

202/1  119   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

202/1  131   salt      2     Salinity appears low compared with adjoining stations, agrees with CTD.
                             Salinity, oxygen and nutrients are acceptable.

202/1  132   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

203/1  104   salt      2     Salinity thimble came out with cap. Salinity, oxygen and nutrients are
                             acceptable.

203/1  105   salt      2     3 attempts for a good salinity reading. Thimble popped out with cap - second
                             reading was bogus-arm two not entirely filled. Salinity, oxygen and nutrients
                             are acceptable.

203/1  109   o2        3     Oxygen appears 0.04ml/l high. No analytical errors. Code oxygen
                             questionable, salinity and nutrients are acceptable.

203/1  113   sio3      2     SiO3 high, 4uM. Analyst: "Fits profile of 204. No analytical errors noted."
                             Nutrients, oxygen and salinity are acceptable.

203/1  118   o2        2     Fix oxygen endpoint. Noisy but ok. Oxygen, salinity and nutrients are
                             acceptable.

203/1  131   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

203/1  132   CTDT1     3     CTDT1 unstable primary temperature reading vs. CTDT2/SBE35T, code
                             questionable.

203/1  132   salt      2     Bottle salinity is low compared with CTD. Salinity, oxygen and nutrients are
                             acceptable.

203/1  134   salt      2     Salinity thimble came out with cap. Salinity, oxygen and nutrients are
                             acceptable.

203/1  136   salt      2     3 attempts for a good salinity reading. Averaged reading acceptable. Salinity,
                             oxygen and nutrients are acceptable.

204/1  101   salt      4     Bottle salinity is high compared with CTD and adjoining stations. Thimble
                             popped out with cap. No analytical problems noted. Code salinity bad,
                             oxygen and nutrients are acceptable.

204/1  103   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

204/1  108   bottle    2     Bottle tripped at 2315m instead of 2335m intended depth.

204/1  108   o2        2     Corrected oxygen end point. Oxygen, salinity and nutrients are acceptable.

204/1  116   o2        2     Corrected oxygen end point. Oxygen, salinity and nutrients are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
204/1  124   salt      2     4 attempts for a good salinity reading. Thimble came out with cap - large
                             jump between first and second readings. First reading resolved salinity
                             discrepancy. Salinity, oxygen and nutrients are acceptable.

204/1  127   bottle    2     Spigot is sticky. Oxygen, salinity and nutrients are acceptable.

204/1  127   salt      2     Salinity thimble came out with cap. Salinity, oxygen and nutrients are
                             acceptable.

204/1  129   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

204/1  135   o2        2     Corrected oxygen end point. Oxygen, salinity and nutrients are acceptable.

204/1  135   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

205/1  104   sio3      2     SiO3 does not agree with adjoining stations. Analyst: "No analytical errors
                             noted. Deep check standard and RMNS values okay." Nutrients, oxygen and
                             salinity are acceptable.

205/1  105   o2        2     Oxygen slightly high compared with adjoining stations. Analyst: "Endpoint
                             Okay." Oxygen, salinity and nutrients are acceptable.

205/1  105   sio3      2     SiO3 does not agree with adjoining stations. Analyst: "No analytical errors
                             noted. Deep check standard and RMNS values okay." Nutrients, oxygen and
                             salinity are acceptable.

205/1  107   salt      2     5 attempts for a good salinity reading. Averaged readings are acceptable.
                             Definite signs of salt contamination. Salinity, oxygen and nutrients are
                             acceptable.

205/1  113   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

206/1  108   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

206/1  111   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

206/1  116   o2        2     Fixed oxygen endpoint. Oxygen, salinity and nutrients are acceptable.

206/1  119   salt      2     4 attempts for a good salinity reading. Averaged readings are acceptable.
                             Thimble came off with cap before wiping. Sig. Salinity, oxygen and nutrients
                             are acceptable.

206/1  125   salt      2     3 attempts for a good salinity reading. First reading resolved some of the
                             salinity discrepancy.

206/1  126   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

206/1  133   o2        2     Redrew oxygen. Oxygen, salinity and nutrients are acceptable.

206/1  135   salt      2     4 attempts for a good salinity reading. First reading resolved some of the
                             salinity discrepancy. Salinity, oxygen and nutrients are acceptable.

207/1  101   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  101   salt      2     5 attempts for a good salinity reading. Classic contamination readings -
                             cause unknown. Averaged readings are acceptable. Salinity, oxygen and
                             nutrients are acceptable.

207/1  102   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
207/1  103   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  104   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  104   salt      2     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problems noted, salinity not within accuracy of measurement. Code
                             salinity questionable, oxygen and nutrients acceptable.

207/1  105   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  105   salt      2     4 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity thimble popped out with cap - classic contamination readings.
                             Salinity, oxygen and nutrients are acceptable.

207/1  106   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  106   salt      3     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problems noted. Code salinity questionable, oxygen and nutrients
                             acceptable.

207/1  107   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  107   po4       2     PO4 low, 0.08uM, vs. potemp. Analyst: "No analytical errors noted. Similar
                             trend in NO3 (although entire profile is coded 3, trend is still valid)."   
                             Nutrients, oxygen and salinity are acceptable.

207/1  108   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  109   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  110   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  111   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  112   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  113   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  113   salt      2     Salinity thimble popped out with cap. Salinity, oxygen and nutrients are
                             acceptable.

207/1  114   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
207/1  115   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  116   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  116   salt      2     3 attempts for a good salinity reading. Additional reading would result in a
                             higher salinity. Salinity, oxygen and nutrients are acceptable.

207/1  117   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  118   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  119   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  120   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  121   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  122   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  123   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  124   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  125   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  126   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  127   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  127   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

207/1  128   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  129   bottle    2     Bottle tripped w/30 instead of intended depth 185. Suspect that bottle 29 was
                             not properly flushed before bottle was tripped. Salinity low, oxygen agrees
                             well with CTD, nutrients are acceptable.

207/1  129   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
207/1  129   o2        2     Ugly oxygen curve. Oxygen, salinity and nutrients are acceptable.

207/1  129   salt      2     Bottle salinity is low compared with CTD, gradient. No analytical problems
                             noted. Salinity, oxygen and nutrients are acceptable.

207/1  130   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  130   o2        2     Fixed oxygen endpoint, high, 0.03ml/l. Oxygen, salinity and nutrients are
                             acceptable.

207/1  131   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  132   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  133   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  134   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  135   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

207/1  136   no3       3     NO3 high compared to adjoining stations. Analyst: "Column issues. Code
                             entire run 3, questionable." Other nutrients, salinity and oxygen are
                             acceptable.

208/1  101   o2        3     Oxygen high compared with CTD and adjoining stations. Analyst: "Good end
                             point." Suspect sampling error. Code oxygen questionable, salinity and
                             nutrients are acceptable.

208/1  101   salt      2     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problems noted. Code salinity questionable, just within accuracy of
                             the measurement, oxygen and nutrients are acceptable.

208/1  104   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 4 attempts
                             for a good salinity reading. Excessive flushes required between readings 1
                             and 2 to clear sticky bubbles. First reading resolved salinity discrepancy.
                             Salinity, oxygen and nutrients are acceptable.

208/1  108   o2        2     Corrected oxygen end point. Oxygen, salinity and nutrients are acceptable.

208/1  114   bottle    2     Bottle tripped @1353; intended depth 1365."

208/1  124   salt      2     4 attempts for a good salinity reading. First reading resolved salinity
                             discrepancy. Salinity, oxygen and nutrients are acceptable.

208/1  125   po4       2     N:P ratio low. Analyst: "Nutricline region. No analytical errors noted."
                             Nutrients, oxygen and salinity are acceptable.

208/1  126   po4       2     N:P ratio low. Analyst: "Nutricline region. No analytical errors noted."
                             Nutrients, oxygen and salinity are acceptable.

208/1  127   po4       2     N:P ratio low. Analyst: "Nutricline region. No analytical errors noted."
                             Nutrients, oxygen and salinity are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
208/1  127   salt      2     3 attempts for a good salinity reading. First reading resolved salinity
                             discrepancy. Salinity, oxygen and nutrients are acceptable.

208/1  129   o2        5     ABORT; could not find oxygen endpoint, likely a poorly pickled sample.

208/1  129   salt      2     3 attempts for a good salinity reading. First reading resolved salinity
                             discrepancy. Salinity, oxygen and nutrients are acceptable.

208/1  130   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

208/1  135   CTDT2     3     CTDT2 unstable secondary temperature reading vs. CTDT1/SBE35T, code
                             questionable.

209/1  101   salt      2     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problems noted. Salinity, oxygen and nutrients are acceptable.

209/1  102   salt      2     3 attempts for a good salinity reading. First reading resolved salinity
                             discrepancy. Salinity, oxygen and nutrients are acceptable.

209/1  107   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 4 attempts
                             for a good salinity reading. First reading resolved salinity discrepancy.
                             Salinity, oxygen and nutrients are acceptable.

209/1  114   o2        2     Oxygen end point corrected.

209/1  116   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 4 attempts
                             for a good salinity reading. First reading resolved salinity discrepancy.
                             Salinity, oxygen and nutrients are acceptable.

209/1  132   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

209/1  133   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

210/1  101   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 4 attempts
                             for a good salinity reading. First reading resolved salinity discrepancy.
                             Salinity, oxygen and nutrients are acceptable.

210/1  104   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 3 attempts
                             for a good salinity reading. First reading resolved salinity discrepancy.
                             Salinity, oxygen and nutrients are acceptable.

210/1  113   bottle    2     Vent open.

210/1  114   salt      2     3 attempts for a good salinity reading. First reading resolved salinity
                             discrepancy. Salinity, oxygen and nutrients are acceptable.

210/1  117   salt      2     4 attempts for a good salinity reading. Thimble came out with cap - classic
                             contamination readings. Averaged readings are acceptable. Salinity, oxygen
                             and nutrients are acceptable.

210/1  123   no3       2     NO3 high, 2ml/l, compared with adjoining stations. Although there appears to
                             be a maximum here. PO4 also a little high compared with adjoining stations,
                             low oxygen which agrees with CTD and high SiO3 confirming this feature.
                             Analyst: "No analytical errors noted." Nutrients, oxygen and salinity are
                             acceptable.

210/1  126   CTDT1     3     CTDT1 unstable primary temperature reading vs. CTDT2/SBE35T, code
                             questionable.

210/1  127   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

210/1  134   salt      2     Salinity thimble popped out with cap. Salinity, oxygen and nutrients are
                             acceptable.

210/1  135   CTDOXY    3     CTD oxygen sensor experience low readings from the surface to ˜35meters,
                             although it appears the sensor returned to state, it is a little low compared to
                             this bottle. Code CTD Oxygen questionable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
210/1  135   CTDT2     3     CTDT2 unstable secondary temperature reading vs. CTDT1/SBE35T, code
                             questionable.

210/1  135   salt      2     Bottle salinity is low compared with CTD. Structure seen in CTD trace, may
                             be the physical difference between the bottle and CTD. Salinity, oxygen and
                             nutrients are acceptable.

210/1  136   CTDOXY    4     CTD oxygen sensor experience low readings from the surface to ˜35meters.
                             Code CTD Oxygen bad.

211/1  101   o2        2     Oxygen low, error made in entry of flask number. Oxygen, salinity and
                             nutrients are acceptable.

211/1  101   salt      2     4 attempts for a good salinity reading. First reading resolved salinity
                             discrepancy. Salinity, oxygen and nutrients are acceptable.

211/1  116   salt      2     4 attempts for a good salinity reading. Additional reading resulted in higher
                             salinity. Salinity, oxygen and nutrients are acceptable.

211/1  119   salt      2     3 attempts for a good salinity reading. First reading resolved salinity
                             discrepancy. Salinity, oxygen and nutrients are acceptable.

211/1  134   salt      2     Bottle salinity is high compared with CTD, gradient. Salinity, oxygen and
                             nutrients are acceptable.

212/1  101   salt      2     Salinity was a little high compared with CTD and adjoining stations. Appears
                             to have been a poor beginning SSW. Adjusted the data based on the
                             Standard dial, it was 6 units high, so 6 conductivity units were subtracted
                             from the data.

212/1  103   o2        2     Fixed oxygen endpoint. Oxygen, salinity and nutrients are acceptable.

212/1  104   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 3 attempts
                             for a good salinity reading. Averaged readings are acceptable. Salinity,
                             oxygen and nutrients are acceptable.

212/1  105   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

212/1  108   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

212/1  126   salt      2     04 attempts for a good salinity reading. Salinity thimble came off with cap
                             before wiping. Definite signs of contamination. First reading manually
                             entered, results are acceptable. Salinity, oxygen and nutrients are
                             acceptable.

212/1  133   salt      2     4 attempts for a good salinity reading. Salinity, oxygen and nutrients are
                             acceptable.

213/1  107   salt      3     Bottle salinity is high compared with CTD and adjoining stations. 3 attempts
                             for a good salinity reading. Additional readings did not resolve salinity
                             difference. Code salinity questionable, oxygen and nutrients are acceptable.

213/1  109   o2        2     Corrected oxygen end point. Oxygen, salinity and nutrients are acceptable.

213/1  113   o2        2     Stepped end point; corrected end point. Oxygen, salinity and nutrients are
                             acceptable.

213/1  121   o2        2     Stepped end point; corrected end point. Oxygen, salinity and nutrients are
                             acceptable.

213/1  124   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

213/1  128   o2        2     Stepped end point; not able to correct. Oxygen, salinity and nutrients are
                             acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
213/1  129   o2        2     Replaced water in oxygen water bath. Oxygen, salinity and nutrients are
                             acceptable.

213/1  129   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

213/1  135   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

213/1  136   CTDOXY    4     CTDO too low, code bad.

214/1  101   salt      2     Salinity bottles for entire box were empty to begin with. Salinity is acceptable.

214/1  105   o2        2     Oxygen flask broken, redrew with 1384. Oxygen, salinity and nutrients are
                             acceptable.

214/1  118   o2        5     Appears that 18 was drawn from 19, 19 from 20. Oxygen lost, salinity and
                             nutrients are acceptable.

214/1  122   salt      2     Salinity thimble came out with cap. salinity, oxygen and nutrients are
                             acceptable.

214/1  126   bottle    4     Bottle mis-tripped, code bottle did not trip as scheduled and all samples bad.

214/1  126   no2       4    

214/1  126   no3       4    

214/1  126   o2        4    

214/1  126   po4       4    

214/1  126   salt      4     Bottle salinity is high compared with CTD and adjoining stations. Code bottle
                             did not trip as scheduled, all samples bad.

214/1  126   sio3      4    

214/1  127   bottle    4     Bottle mis-tripped, code bottle did not trip as scheduled and all samples bad.

214/1  127   no2       4    

214/1  127   no3       4    

214/1  127   o2        4    

214/1  127   po4       4    

214/1  127   salt      4     Bottle salinity is high compared with CTD and adjoining stations. Salinity
                             thimble came out with cap. Code bottle did not trip as scheduled, all samples
                             bad.

214/1  127   sio3      4    

214/1  128   bottle    4     Bottle mis-tripped, code bottle did not trip as scheduled and all samples bad.

214/1  128   no2       4    

214/1  128   no3       4    

214/1  128   o2        4    

214/1  128   po4       4    

214/1  128   salt      4     Bottle salinity is high compared with CTD and adjoining stations. Bottle did
                             not trip as scheduled. Code bottle did not trip as scheduled, all samples bad.

214/1  128   sio3      4    


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
214/1  129   bottle    4     Bottle mis-tripped, code bottle did not trip as scheduled and all samples bad.

214/1  129   no2       4    

214/1  129   no3       4    

214/1  129   o2        4    

214/1  129   po4       4    

214/1  129   salt      4     Bottle salinity is low compared with CTD and adjoining stations. Bottle did not
                             trip as scheduled. Code bottle did not trip as scheduled, all samples bad.

214/1  129   sio3      4    

214/1  130   bottle    4     Bottle mis-tripped, code bottle did not trip as scheduled and all samples bad.

214/1  130   no2       4    

214/1  130   no3       4    

214/1  130   o2        4    

214/1  130   po4       4    

214/1  130   salt      4    

214/1  130   sio3      4    

214/1  131   bottle    4     Bottle mis-tripped, code bottle did not trip as scheduled and all samples bad.

214/1  131   no2       4    

214/1  131   no3       4    

214/1  131   o2        4    

214/1  131   po4       4    

214/1  131   salt      4     Bottle salinity is low compared with CTD and adjoining stations. Bottle did not
                             trip as scheduled. Code bottle did not trip as scheduled, all samples bad.

214/1  131   sio3      4    

214/1  132   ctdc1     3    

214/1  132   ctdc2     3    

214/1  132   salt      2     Bottle salinity is high compared with CTD. 3 attempts for a good salinity
                             reading. First reading gave a better agreement with the CTD, gradient, CTD
                             sampling less saline water from below. Code CTD salinity questionable.
                             Salinity, oxygen and nutrients are acceptable.

214/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

215/1  103   o2        2     Oxygen is low compared with CTD, but agrees with adjoining stations. The
                             rest of the profile appears high. Analyst: "Endpoint Okay." Oxygen, salinity
                             and nutrients are acceptable.

215/1  105   salt      2     4 attempts for a good salinity reading. Thimble came out with cap - classic
                             contamination readings. Averaged readings are acceptable. Salinity, oxygen
                             and nutrients are acceptable.

215/1  107   o2        2     Oxygen is low compared with CTD, but agrees with adjoining stations. The
                             rest of the profile appears high. Analyst: "Endpoint Okay." Oxygen, salinity
                             and nutrients are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
215/1  109   o2        3     Oxygen is high, 0.03ml/l. Code oxygen questionable, salinity and nutrients
                             are acceptable.

215/1  121   o2        2     Fixed oxygen endpoint. Oxygen, salinity and nutrients are acceptable.

215/1  130   salt      2     Bottle salinity is low compared with CTD. The CTD sampled while the deeper
                             water had not dissipated from the package. Code CTD salinity questionable,
                             salinity, oxygen and nutrients are acceptable.

215/1  131   salt      2     Bottle salinity is low compared with CTD. The CTD sampled while the deeper
                             water had not dissipated from the package. Code CTD salinity questionable,
                             salinity, oxygen and nutrients are acceptable.

215/1  132   salt      2     Bottle salinity is low compared with CTD. The CTD sampled while the deeper
                             water had not dissipated from the package. Code CTD salinity questionable,
                             salinity, oxygen and nutrients are acceptable.

215/1  134   salt      2     Salinity thimble popped out before neck wiped. Salinity, oxygen and nutrients
                             are acceptable.

216/1  108   salt      2     Salinity thimble popped off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

216/1  116   salt      2     Salinity thimble popped off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

216/1  119   salt      2     Salinity thimble popped off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

216/1  127   po4       2     N:P ratio low. Analyst: "Nutricline region. NO3 and PO4 trends consistent
                             with SIL and oxygen." Nutrients, salinity and oxygen are acceptable.

216/1  131   bottle    2     Bottle 31 tripped @125m instead of intended 135m.

216/1  132   salt      2     4 attempts for a good salinity reading. Thimble came off with cap before
                             wiping. First reading resolved salinity difference. Salinity, oxygen and
                             nutrients are acceptable.

217/1  101   salt      2     Bottle salinity was high compared with CTD and adjoining stations. Large
                             standard dial change without a change in the air temperature between this
                             and the next salinity run. Adjustment based on the standard dial reading gave
                             poor results. The lab air temperature was also low for the bath setting.

217/1  103   salt      3     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problems noted. Code salinity questionable, oxygen and nutrients
                             acceptable.

217/1  105   salt      4     Bottle salinity is high compared with CTD and adjoining stations. 3 attempts
                             for a good salinity reading. Additional readings did not resolve salinity
                             difference. Code salinity bad, oxygen and nutrients are acceptable.

217/1  106   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 4 attempts
                             for a good salinity reading. Additional reading resolved salinity difference.
                             Salinity, oxygen and nutrients are acceptable.

217/1  107   po4       2     N:P ratio low. Analyst: "Looks okay vs. ptemp. No analytical errors noted 217
                             or 218, NO3 or PO4." Nutrients, oxygen and salinity are acceptable.

217/1  108   salt      4     Bottle salinity is high compared with CTD and adjoining stations. 3 attempts
                             for a good salinity reading. Thimble came off with cap before wiping.
                             Additional readings did not resolve salinity discrepancy. Code salinity
                             questionable, Si03 is slightly low, but acceptable, oxygen and nutrients are
                             acceptable.

217/1  113   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
217/1  133   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

218/1  104   salt      3     Bottle salinity is low compared with CTD and adjoining stations. No analytical
                             problems noted, this run was very noisy. Code salinity questionable, oxygen
                             and nutrients acceptable.

218/1  107   salt      2     Salinity thimble came out with cap. Salinity, oxygen and nutrients are
                             acceptable.

218/1  117   salt      2     Salinity thimble popped out before neck wiped. Salinity, oxygen and nutrients
                             are acceptable.

218/1  125   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

218/1  129   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

218/1  131   CTDT1     3     CTDT1 unstable primary temperature reading vs. CTDT2/SBE35T, code
                             questionable.

218/1  135   bottle    2     Bottle tripped at 20m instead of 25 for the mixed layer.

218/1  135   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

219/1  101   salt      2     4 attempts for a good salinity reading. Third reading resolved salinity
                             discrepancy. Salinity, oxygen and nutrients are acceptable.

219/1  105   sio3      2     SiO3 high. Analyst: "No analytical errors noted. Deep cal and RMNS spot on."
                             Nutrients, salinity and oxygen are acceptable.

219/1  106   o2        4     Correct oxygen endpoint. Oxygen high compared with adjoining stations.
                             Code oxygen bad, salinity and nutrients are acceptable.

219/1  106   sio3      2     SiO3 high. Analyst: "No analytical errors noted. Deep cal and RMNS spot on."
                             Nutrients, salinity and oxygen are acceptable.

219/1  107   sio3      2     SiO3 high. Analyst: "No analytical errors noted. Deep cal and RMNS spot on."
                             Nutrients, salinity and oxygen are acceptable.

219/1  108   sio3      2     SiO3 high. Analyst: "No analytical errors noted. Deep cal and RMNS spot on."
                             Nutrients, salinity and oxygen are acceptable.

219/1  109   sio3      2     SiO3 high. Analyst: "No analytical errors noted. Deep cal and RMNS spot on."
                             Nutrients, salinity and oxygen are acceptable.

219/1  110   sio3      2     SiO3 high. Analyst: "No analytical errors noted. Deep cal and RMNS spot on."
                             Nutrients, salinity and oxygen are acceptable.

219/1  111   sio3      2     SiO3 high. Analyst: "No analytical errors noted. Deep cal and RMNS spot on."
                             Nutrients, salinity and oxygen are acceptable.

219/1  113   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

219/1  114   salt      2     Salinity thimble popped out with cap. Salinity, oxygen and nutrients are
                             acceptable.

219/1  122   salt      2     Salinity thimble popped out before neck wiped. Salinity is slightly high, within
                             accuracy of the measurement. Salinity, oxygen and nutrients are acceptable.

219/1  126   salt      2     5 attempts for a good salinity reading. Third reading resolved salinity
                             discrepancy. Readings erratic cause unknown. Salinity, oxygen and nutrients
                             are acceptable.

219/1  130   salt      2     Salinity thimble came out with cap. Salinity, oxygen and nutrients are
                             acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
220/1  105   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

220/1  106   o2        3     Oxygen high compared with adjoining stations and CTD. Code oxygen
                             questionable, salinity and nutrients acceptable.

220/1  111   o2        2     Oxygen appear exactly the same. Same signature is seen in NO3 and PO4,
                             but not SiO3. Oxygen, salinity and nutrients are acceptable.

220/1  112   o2        2     Oxygen appear exactly the same. Same signature is seen in NO3 and PO4,
                             but not SiO3. Oxygen, salinity and nutrients are acceptable.

220/1  116   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

220/1  120   o2        2     Oxygen stepped end point; corrected. Oxygen, salinity and nutrients are
                             acceptable.

220/1  126   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

220/1  132   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

220/1  133   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

220/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

220/1  134   salt      2     Bottle salinity is low compared with CTD. Bottle was tripped before water
                             dissipated. Code CTD salinity questionable, salinity, oxygen and nutrients
                             acceptable.

221/1  101   salt      2     3 attempts for a good salinity reading. First reading resolves salinity
                             difference. Salinity, oxygen and nutrients are acceptable.

221/1  105   o2        2     Oxygen end point corrected. Oxygen, salinity and nutrients are acceptable.

221/1  107   sio3      2     SiO3 low compared with station profile and adjoining stations. Analyst:
                             "Checked these points, and there were no analytical errors." Nutrients,
                             oxygen and salinity are acceptable.

221/1  108   sio3      2     SiO3 low compared with station profile and adjoining stations. Analyst:
                             "Checked these points, and there were no analytical errors." Nutrients,
                             oxygen and salinity are acceptable.

221/1  120   salt      2     3 attempts for a good salinity reading. First reading resolves salinity
                             difference. Salinity, oxygen and nutrients are acceptable.

221/1  129   salt      2     3 attempts for a good salinity reading. Additional readings do not resolve
                             discrepancy, within accuracy of measurement. Salinity, oxygen and nutrients
                             are acceptable.

221/1  130   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

221/1  130   salt      2     Bottle salinity is low compared with CTD. Salinity, oxygen and nutrients are
                             acceptable.

221/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

222/1  101   bottle    2     This was a Styrofoam cup cast.

222/1  101   o2        5     Bad titration due to rig leak, oxygen sample lost.

222/1  105   salt      2     4 attempts for a good salinity reading. Thimble popped out with cap.
                             Averaged readings are acceptable. Salinity, oxygen and nutrients are
                             acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
222/1  106   salt      4     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problems noted, although this run is very noisy and the lab
                             temperature was between 24.3 and 25.5. Code salinity bad, oxygen and
                             nutrients acceptable.

222/1  108   salt      4     Bottle salinity is high compared with CTD and adjoining station. 4 attempts
                             for a good salinity reading. Thimble came out with cap - readings very erratic.
                             Sample either drawn from bottle 7 or analyst took bottle 8 out and reanalyzed
                             7. Code salinity bad, oxygen and nutrients are acceptable.

222/1  110   o2        3     Oxygen high compared with adjoining stations and CTD. No analytical notes.
                             Oxygen, salinity and nutrients are acceptable.

222/1  110   salt      3     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problems noted, although this run is very noisy and the lab
                             temperature was between 24.3 and 25.5. Code salinity bad, oxygen and
                             nutrients acceptable.

222/1  126   salt      2     Salinity thimble came out with cap. Salinity, oxygen and nutrients are
                             acceptable.

222/1  128   ctdc1     3    

222/1  128   ctdc2     3    

222/1  128   salt      2     Bottle salinity is low compared with CTD. Wake from rosette did not dissipate
                             when bottle was tripped. Code CTD salinity questionable, salinity, oxygen
                             and nutrients acceptable.

222/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

222/1  135   ctdc1     3    

222/1  135   ctdc2     3    

222/1  135   CTDOXY    3    

222/1  135   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

222/1  135   salt      2     Bottle salinity is high compared with CTD. CTD trace too low, some debris
                             must have gotten stuck at about 25m. Code CTD salinity and oxygen bad,
                             salinity, oxygen and nutrients are acceptable.

222/1  136   ctdc1     3    

222/1  136   ctdc2     3    

222/1  136   CTDOXY    3    

222/1  136   po4       2     N:P ratio high. Analyst: "Both NO3 and PO4 high at surface this station.
                             Localized upwelling? No analytical errors noted." Nutrients, oxygen and
                             nutrients are acceptable.

222/1  136   salt      2     Bottle salinity is high compared with CTD. CTD trace too low, some debris
                             must have gotten stuck at about 25m. Code CTD salinity and oxygen bad,
                             salinity, oxygen and nutrients are acceptable.

223/1  102   salt      2     Salinity thimble came out with cap. Salinity, oxygen and nutrients are
                             acceptable.

223/1  104   salt      2     Salinity thimble came out with cap. Salinity, oxygen and nutrients are
                             acceptable.

223/1  105   salt      2     Salinity thimble came out with cap. Salinity, oxygen and nutrients are
                             acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
223/1  105   sio3      2     SiO3 high compared with adjoining stations. Analyst: "Okay vs. pot temp.
                             No analytical errors noted." Nutrients, oxygen and salinity are acceptable.

223/1  130   CTDT2     3     CTDT2 unstable secondary temperature reading vs. CTDT1/SBE35T, code
                             questionable.

223/1  130   salt      2     Bottle salinity is high compared with CTD. Lots of structure in the CTD trace.
                             Suspect that deeper water did not dissipate when CTD sampled. Code CTD
                             salinity questionable, salinity, oxygen and nutrients are acceptable.

223/1  131   no3       2     NO3 low compared with adjoining stations. Analyst: "Looks okay vs. pot
                             temp. No analytical errors noted." Nutrients, oxygen and salinity are
                             acceptable.

223/1  133   salt      2     Bottle salinity is low compared with CTD. Lots of structure in the CTD trace.
                             Suspect that deeper water did not dissipate when CTD sampled. Code CTD
                             salinity questionable, salinity, oxygen and nutrients are acceptable.

223/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

224/1  110   salt      2     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problems noted. Bottle not flushed properly, deeper water
                             entrained in the bottle. Salinity, oxygen and nutrients are acceptable.

224/1  111   salt      2     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problems noted. Bottle not flushed properly, deeper water
                             entrained in the bottle. Salinity, oxygen and nutrients are acceptable.

224/1  118   salt      2     3 attempts for a good salinity reading. Second reading resolved salinity
                             discrepancy. Salinity, oxygen and nutrients are acceptable.

224/1  128   o2        4     Oxygen appears to have been drawn from bottle 27. Code oxygen bad,
                             salinity and nutrients are acceptable.

224/1  130   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

224/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

225/1  101   salt      2     3 attempts for a good salinity reading. Additional readings would result in a
                             larger difference, averaged readings are acceptable. Salinity, oxygen and
                             nutrients are acceptable.

225/1  105   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

225/1  108   o2        4     Stir bar not moving fast enough; Oxygen endpoint reached before plotting -
                             sample lost. Code oxygen bad, salinity and nutrients are acceptable.

225/1  116   salt      2     3 attempts for a good salinity reading. Salinity thimble came off with cap
                             before wiping. Averaged readings are acceptable. Salinity, oxygen and
                             nutrients are acceptable.

225/1  129   salt      2     3 attempts for a good salinity reading. Additional readings would result in a
                             larger difference, averaged readings are acceptable for shallow value.
                             Salinity, oxygen and nutrients are acceptable.

225/1  131   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

226/1  101   bottle    2     Nipple loose prior to sampling. Oxygen, salinity and nutrients are acceptable.

226/1  101   o2        2     Nipple loose prior to sampling.

226/1  108   salt      2     Salinity thimble came out with cap. Salinity, oxygen and nutrients are acceptable.

226/1  116   salt      3     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problem noted. Code salinity questionable, oxygen and nutrients
                             are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
226/1  119   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 3 attempts
                             for a good salinity reading. Thimble popped out with cap. Salinity, oxygen and
                             nutrients are acceptable.

226/1  122   salt      2     Salinity thimble popped loose while neck being wiped. Salinity, oxygen and
                             nutrients are acceptable.

226/1  133   salt      2     Bottle salinity is low compared with CTD. Salinity, oxygen and nutrients are
                             acceptable.

227/1  118   o2        2     Corrected oxygen endpoint. Oxygen, salinity and nutrients are acceptable.

227/1  129   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

228/1  101   salt      3     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problems noted. Code salinity questionable, oxygen and nutrients
                             are acceptable.

228/1  109   salt      3     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problems noted. Code salinity questionable, oxygen and nutrients
                             are acceptable.

228/1  110   salt      3     Bottle salinity is high compared with CTD and adjoining stations. No
                             analytical problems noted. Code salinity questionable, oxygen and nutrients
                             are acceptable.

228/1  124   o2        2     Corrected oxygen endpoint. Oxygen, salinity and nutrients are acceptable.

228/1  133   ctdc1     3    

228/1  133   ctdc2     3    

228/1  133   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

228/1  133   salt      2     Bottle salinity is low compared with CTD {and adjoining stations}. Gradient,
                             bottle was tripped before deeper water dissipated. Code CTD salinity
                             questionable, salinity, oxygen and nutrients are acceptable.

228/1  134   ctdc1     3    

228/1  134   ctdc2     3    

228/1  134   salt      2     Bottle salinity is high compared with CTD. Gradient, bottle was tripped before
                             deeper water dissipated. Code CTD salinity questionable, salinity, oxygen
                             and nutrients are acceptable.

229/1  126   CTDT1     3     CTDT1 unstable primary temperature reading vs. CTDT2/SBE35T, code
                             questionable.

229/1  126   salt      2     Bottle salinity is low compared with CTD {and adjoining stations}.

229/1  129   ctdc1     3    

229/1  129   ctdc2     3    

229/1  129   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

229/1  129   salt      2     4 attempts for a good salinity reading. First reading resolved salinity
                             discrepancy. Salinity feature that the sensor was measuring the deeper water
                             when the bottle was tripped. Code CTD salinity questionable, salinity, oxygen
                             and nutrients are acceptable.

229/1  132   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

229/1  134   salt      2     4 attempts for a good salinity reading. First reading resolved salinity
                             discrepancy. Salinity, oxygen and nutrients are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
230/1  101   salt      2     (1-36) Salinometer standardized to low temp std, std dial set inconsistently
                             with adjacent runs. Correction made for std dial.

230/1  105   salt      2     Salinity thimble came out with cap. Salinity, oxygen and nutrients are
                             acceptable.

230/1  116   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 3 attempts
                             for a good salinity reading. Thimble came out with cap - large jump first to
                             second readings. First reading resolved salinity discrepancy within accuracy
                             of the measurement. Salinity, oxygen and nutrients are acceptable.

230/1  124   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

230/1  126   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

231/1  110   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

231/1  119   salt      2     4 attempts for a good salinity reading. First reading resolved salinity
                             discrepancy. Salinity, oxygen and nutrients are acceptable.

231/1  128   sio3      2     SiO3 low, ˜5uM, other nutrients do not show this low feature nor does
                             oxygen. Analyst: "Nutricline region, seen in all nutrients and dissolved
                             oxygen."

231/1  129   sio3      2     SiO3 low, ˜5uM, other nutrients do not show this low feature nor does
                             oxygen. Analyst: "Nutricline region, seen in all nutrients and dissolved
                             oxygen."

232/1  101   salt      2     Salinity run, (1-36), too high. Lab temperature 3 degrees lower than bath
                             temperature, suspect samples had not yet come to lab temperature,
                             corrected run. fmd: (1-36) Salinometer standardized to low temp std, std dial
                             set inconsistently with adjacent runs. Correction made for std dial.

232/1  127   ctds1     3    

232/1  127   salt      2     Bottle salinity is high compared with CTD. CTD is sampling deeper water at
                             the time the bottle is tripped. Code CTD salinity questionable. Salinity,
                             oxygen and nutrients are acceptable.

232/1  132   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

233/1  101   salt      2     (1-36) Salinometer standardized to low temp std, std dial set inconsistently
                             with adjacent runs. Correction made for std dial.

233/1  125   o2        2     Checked Oxygen endpoint, okay. Oxygen, salinity and nutrients are
                             acceptable.

233/1  129   salt      2     3 attempts for a good salinity reading. First reading gave better results
                             although still low, within the accuracy of the measurement. Salinity, oxygen
                             and nutrients are acceptable.

234/1  101   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 4 attempts
                             for a good salinity reading. Large jumps between first three readings. Within
                             the accuracy of the measurement. Salinity, oxygen and nutrients are
                             acceptable.

234/1  104   o2        2     Oxygen redrawn on 4. Oxygen, salinity and nutrients are acceptable.

234/1  114   o2        4     CHECK: Bottle o2 not in WOCE specs. Code bad.

234/1  124   bottle    2     Console operator missed intended depth of 415m, two bottles were tripped at
                             the surface.

234/1  126   o2        4     CHECK: Bottle o2 not in WOCE specs. Code bad.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
234/1  128   o2        4     CHECK: Bottle o2 not in WOCE specs. Code bad.

234/1  133   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

234/1  135   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

235/1  119   o2        2     Oxygen is high compared with SiO3, feature is seen in NO3 and PO4, but is
                             not as strong in SiO3.

235/1  130   salt      2     Bottle salinity is high compared with CTD. Suspect the bottle did not
                             completely flush before tripping. Code CTD salinity questionable, salinity,
                             oxygen and nutrients are acceptable.

235/1  132   ctdc1     3    

235/1  132   CTDT1     3     CTDT1 unstable primary temperature reading vs. CTDT2/SBE35T, code
                             questionable.

235/1  132   salt      2     Bottle salinity is low compared with CTD. Suspect the difference is the
                             physical location of the bottle vs. the CTD. Code CTD salinity questionable,
                             salinity, oxygen and nutrients are acceptable.

235/1  133   ctdc1     3    

235/1  133   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

235/1  133   salt      2     Bottle salinity is low compared with CTD. CTD measuring deeper, saltier
                             water when bottle closed. Code CTD salinity questionable, salinity, oxygen
                             and nutrients are acceptable.

236/1  105   salt      2     Bottle salinity is high compared with CTD and adjoining stations. salt

236/1  107   po4       2     PO4 vs. NO3, high. Analyst: "No analytical error noted. N:P ratio 14.0 for
                             106-108."

236/1  108   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

236/1  112   po4       3     High compared to profile and adjacent profiles. No analytical errors noted.
                             Code PO4 questionable, other Nutrient parameters okay.

236/1  115   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

236/1  126   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

236/1  133   salt      2     Bottle salinity is low compared with CTD. Deeper saltier water still entrained
                             in the bottle when the sample was taken. Salinity, oxygen and nutrients are
                             acceptable.

237/1  104   o2        2     Sample was over titrated and back titrated. Hit over-titrate option instead of
                             finish, corrected value using the first. Oxygen is acceptable.

237/1  104   salt      4     Bottle salinity is high compared with CTD and adjoining stations. Salinity
                             thimble came off with cap before wiping. Code salinity bad, oxygen and
                             nutrients are acceptable.

237/1  105   salt      2     Salinity thimble came off with cap before wiping. Salinity is a little high, but
                             within the accuracy of the measurement. Salinity, oxygen and nutrients are
                             acceptable.

237/1  105   sio3      2     SiO3 ˜1uM with adjoining stations vs. potemp. Analyst: "No analytical errors
                             noted. Concomitant trend in oxygen." Nutrients, oxygen and salinity are
                             acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
237/1  114   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

237/1  117   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

237/1  120   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

237/1  135   po4       2     PO4 high, similar high value seen in 240. Analyst: "Upwelling region. No
                             analytical error noted."

238/1  105   ctdc1     4     Offset in primary conductivity sensor, code CTD primary conductivity bad.

238/1  106   ctdc1     4     Offset in primary conductivity sensor, code CTD primary conductivity bad.

238/1  107   ctdc1     4     Offset in primary conductivity sensor, code CTD primary conductivity bad.

238/1  108   ctdc1     4     Offset in primary conductivity sensor, code CTD primary conductivity bad.

238/1  109   ctdc1     4     Offset in primary conductivity sensor, code CTD primary conductivity bad.

238/1  110   ctdc1     4     Offset in primary conductivity sensor, code CTD primary conductivity bad.

238/1  111   ctdc1     4     Offset in primary conductivity sensor, code CTD primary conductivity bad.

238/1  131   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

238/1  133   po4       2     N:P ratio low. Analyst: "Dynamic region in both vertical and horizontal
                             dimensions; no analytical errors noted." Nutrients, oxygen and salinity are
                             acceptable.

239/1  108   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

239/1  119   salt      2     3 attempts for a good salinity reading. Thimble came out with cap - large
                             jump between first and second readings. First reading resolved salinity
                             discrepancy. Salinity, oxygen and nutrients are acceptable.

239/1  124   salt      2     4 attempts for a good salinity reading. Large jumps between first three
                             readings - cause unknown. Averaged readings are acceptable. Salinity,
                             oxygen and nutrients are acceptable.

239/1  126   CTDT1     3     CTDT1 unstable primary temperature reading vs. CTDT1 and SBE35RT.

239/1  132   o2        3     Oxygen low compared up, down trace, and with adjoining stations. Possible
                             mistrip. Salinity agrees with the CTD. Code oxygen, silicate and
                             phosphate questionable, nitrate is reasonable.

239/1  136   CTDT2     3     CTDT2 unstable secondary temperature reading vs. CTDT1/SBE35T, code
                             questionable.

240/1  101   bottle    2     CTDC1 exhibited an offset on the way up. CTDC2 and CTDT2 will be
                             reported for this cast.

240/1  105   salt      2     Bottle salinity is high compared with CTD and adjoining stations. 3 attempts
                             for a good salinity reading. First reading resolved salinity discrepancy.
                             Salinity, oxygen and nutrients are acceptable.

240/1  110   salt      4     Salinity thimble came off with cap before wiping. Contamination of the
                             sample. Code salinity bad, oxygen and nutrients are acceptable.

240/1  125   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

240/1  130   o2        4     Bottle o2 not within WOCE specs. Code bad.

240/1  130   salt      3     Bottle salinity is high compared with CTD, while oxygen is high. Agrees with
                             up trace although CTD, appears deeper water is entrained. Code salinity
                             questionable, nutrients are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
240/1  131   salt      2     Bottle salinity is low compared with CTD. CTD sampled the deeper saltier
                             water. Code CTD salinity questionable, salinity, oxygen and nutrients are
                             acceptable.

240/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

240/1  135   po4       2     PO4 vs. NO3, high. Analyst: "Upwelling region. No analytical error noted."

241/1  116   salt      2     3 attempts for a good salinity reading. Could not clear bubbles in reasonable
                             amount of flushes after first reading. Keyboard entry with first reading value.
                             Averaged readings are acceptable. Salinity, oxygen and nutrients are
                             acceptable.

241/1  126   salt      2     3 attempts for a good salinity reading. Thimble came off with cap before
                             wiping. First reading resolved salinity discrepancy. Salinity, oxygen and
                             nutrients are acceptable.

241/1  127   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

241/1  128   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

241/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

242/1  102   salt      2     4 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

242/1  113   salt      2     3 attempts for a good salinity reading. Averaged readings are acceptable.
                             Salinity, oxygen and nutrients are acceptable.

242/1  132   salt      2     Bottle salinity is low compared with CTD. CTD sampling deeper less saline
                             water. Salinity, oxygen and nutrients are acceptable.

242/1  133   o2        2     Bottle oxygen not within WOCE specs compared to CTDO. KMS: agrees with
                             adjoining stations, code acceptable.

242/1  133   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

242/1  133   salt      2     Bottle salinity is high compared with CTD. Suspect difference between
                             physical location of the bottle and CTD. Salinity, oxygen and nutrients are
                             acceptable.

242/1  134   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

243/2  201   salt      2     (1-36) Salinometer standardized to low temp std, std dial set inconsistently
                             with adjacent runs. Correction made for std dial.

243/2  222   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

243/2  236   bottle    2     Vent open. Oxygen, salinity and nutrients are acceptable.

243/2  236   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

244/2  201   salt      2     (1-36) Salinometer standardized to low temp std, std dial set inconsistently
                             with adjacent runs. Correction made for std dial.

244/2  202   sio3      2     SiO3 high, 1uM. Analyst: "No analytical error noted."

244/2  203   o2        2     Broke oxygen flask 1003, replace with 1743.

244/2  207   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.


Stn    Samp            Qual
/Cast  No.   Property  Code  Comment
-----  ----  --------  ----  -----------------------------------------------------------------------------
244/2  216   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

244/2  223   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

244/2  229   bottle    2     Missed intended depth, 235, by 10m.

244/2  235   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

245/1  101   salt      2     (1-36) Salinometer standardized to low temp std, std dial set inconsistently
                             with adjacent runs. Correction made for std dial.

245/1  128   o2        2     Fixed oxygen end point.

245/1  131   reft      3     SBE35RT unstable reading vs. CTDT1/CTDT2, code questionable.

246/1  101   salt      2     (1-36) Salinometer standardized to low temp std, std dial set inconsistently
                             with adjacent runs. Correction made for std dial.

246/1  108   bottle    3     O-ring valve compromised. Oxygen bad, salinity and nutrients are
                             acceptable.

246/1  108   no2       2     CHECK O-ring valve compromised.

246/1  108   no3       2     CHECK O-ring valve compromised.

246/1  108   o2        4     O-ring valve compromised. Code bottle leading, oxygen bad.

246/1  108   salt      2     CHECK O-ring valve compromised.

246/1  108   sio3      2     CHECK O-ring valve compromised.

246/1  130   o2        5     Flask broken, sample lost.

247/1  101   salt      2     (1-36) Salinometer standardized to low temp std, std dial set inconsistently
                             with adjacent runs, it also appears that there was a bad beginning worm.
                             Correction made for std dial and bad worm.

247/1  114   o2        2     Oxygen bottle value high, but matches upcast. Code acceptable.

248/1  102   bottle    9     Bottle 2 was mistakenly tripped with bottle 1, operator error. No samples
                             were taken from bottle 2.

248/1  103   salt      2     Bottle salinity is high compared with CTD and adjoining stations. Salinity
                             thimble came off with cap before wiping. Salinity, oxygen and nutrients are
                             acceptable.

248/1  106   salt      2     4 attempts for a good salinity reading. First reading resolved salinity
                             difference. Salinity, oxygen and nutrients are acceptable.

248/1  110   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

248/1  114   salt      2     Salinity thimble came off with cap before wiping. Salinity, oxygen and
                             nutrients are acceptable.

248/1  126   salt      2     5 attempts for a good salinity reading. Chosen averaged readings are
                             acceptable. Salinity thimble came off with cap before wiping. Averaged
                             readings are acceptable. Salinity, oxygen and nutrients are acceptable.

249/1  121   salt      2     Bottle salinity is low compared with CTD. Deeper less saline water still
                             entrained in the bottle. Salinity, oxygen and nutrients are acceptable for
                             shallow sampling.

250/1  115   o2        2     Took sample off early, did not reach endpoint. Oxygen agrees with CTD and
                             adjoining stations.

250/1  116   salt      2     Bottle salinity is low compared with CTD. Deeper, less salinity water likely still
                             entrained in bottle. Salinity, oxygen and nutrients are acceptable for surface
                             sampling.








                                  Appendix B:

                        Property Plots - See PDF version


Figures showing property distributions along the 32.5°S section.

  1. Potential Temperature 
  2. Salinity 
  3. Potential Density (relative to 0 db) 
  4. Potential Density (relative to 4000 db) 
  5. Dissolved Oxygen 
  6. Silicate 
  7. Phosphate 
  8. Nitrate


Property versus Potential Temperature

  1. Salinity 
  2. Oxygen 
  3. Silicate 
  4. Phosphate 
  5. Nitrate
  
  
  

                             



CCHDO DATA PROCESSING NOTES

Date        Contact     Data Type      Event Summary
----------  ----------  -------------  --------------------------------------
2010-02-16  Sanborn     BTL/SUM        Submitted; Preliminary, to go online 
            Action: Place Online
            Notes: Preliminary Bottle Data - sea and sum

2010-02-16  Sanborn     CTD            Submitted; To go online 
            Action: Place Online

2010-02-17  Sanborn     Cruise Report  Merge 2 reports, place online 
            The ODF write-up is P06E_1a_CTD_Hydrographic.pdf. If you could 
            insert it after the Chief Scientist's Data quality assessment 
            (refers to preliminary shipboard data only) and just before the 
            LADCP section, that would be great. 

2010-02-17  Kappa       Cruise Report  2 reports Merged, placed online 
            Done. I'll be adding some bookmarks and links and data processing 
            notes, as well as making a text version, but this is a start.

2010-03-03  Diggs       SUM/CTD/BOT    See notes, Data online 
            Files (sum/cd/bot) needed EXPOCODE updates to 318M20100105. 
            CTD Exchange and NetCDF online, NetCDF CTD do not contain 
              TRANSM,FLUORM, or CTDETIME as they are "products". 
            Bottle Exchange is online, however, new parameters will either need 
              to be handled properly or excluded in 
            NetCDF files for these discreet data. 

2010-03-05  Diggs       BOT-WOCE       WOCE Bot online 
            WOCE bottle file now online. Expocode changed to 318M20100105, 
            submitted by ODF (K. Sanborn) on 2010.03.04. 

2010-03-31  Bartolocci  BTL            updated file online 
            2010.03.8 DBK
            Reformatting the P06_318M20100105 bottle file: 
            Original file was p06_318M20100105_orig_hy1.csv
            Exchange file:
            • edited PH_TEMP to PH_TMP
            • edited REF_TEMP to REF_TMP
            • edited CHLOR to CHLORA
            • edited CDOMSLOG to CDOMSL
            • removed PHOTOLYSIS as per Norm Nelson. These values may come in 
              at a later date, but it is unclear at present.
            • NOTE: It should be noted that the parameter mnemonic BACT 
              currently denotes heterotrophic bacterioplankton at CCHDO, however 
              the data expected for that column is of cyanobacteria and may 
              therefore be changed once data are submitted.
            • Ran copy_bottle_data.rb to re-order parameters in the exchange 
              file and as a bit of a first pass format check.
              Edited file named: p06_318M20100105_orig_edt_hy1.csv
            • NOTE: Because the exchange to netcdf code was crashing based upon 
              placement of the BOT_LAT, BOT_LON parameters, these two parameters 
              were moved in the file to follow other bottle parameters in order. 
            • This file was then copied to p06_318M20100105_hy1.csv
            • Ran exbot_to_netcdf.pl to convert exchange bottle file to netcdf 
              files. Zipped the resultant files into file: 
              p06_318M20100105_nc_hyd.zip
              ncdump of random stations indicates the conversion ran with no 
              errors. 
              Files were examined in JOA with no errors found. 
            • Ran exchange_to_wocebot.rb to create a woce formatted bottle 
              file, however, attempts to format check file are not possible due 
              to the large number of non-woce parameters within it. File was 
              visually checked and put online. 
              output file named: p06_318M20100105_copy_hy.txt was copied to 
              p06_318M20100105hy.txt and first header was edited to comply with 
              WOCE format.

2010-04-06  Kappa       Cruise Report  Updated PDF file online
            • Re-arranged sections to WOCE documentation standard
            • Added Appendix B (Property Figs) 
            • Deleted duplicate sections
            • Added table of contents and PDF hyperlinks

2010-04-16  Kappa       Cruise Report  Updated TXT file online

