A.    Cruise narrative  (A15 and AR15)

A.1.  Highlights 

                       WHP Cruise Summary Information
         WOCE section designation  A15 and AR15
Expedition designation (EXPOCODE)  316N142_3
 Co-Chief Scientists/affiliations  William M. Smethie, Jr./LDEO
                                   George Weatherly/FSU
                            Dates  1994.04.03 - 1994.05.21
                             Ship  R/V KNORR
                    Ports of call  Recife, Brazil to Salvador, Brazil
               Number of stations  149
                                               7°30.03'N
  Stations' Geographic boundaries  19°00.62'W            18°58.80'W
                                              32°0.03'S
     Floats and drifters deployed  28 RAFOS floats deployed
   Moorings deployed or recovered  none
             Contributing Authors  J.C. Jennings, Jr & L.I. Gordon (NUTs DQE)
                                   R Millard (CTD DQE)

          Dr. William M. Smethie ~ Lamont-Doherty Earth Observatory
                         Palisades, New York  10964
                Phone: 914-359-2900 x566 ~ Fax: 914-365-8157
                       Email: bsmeth@ldeo.columbia.edu
   George Weatherly ~ Florida State University ~ Department of Oceanography
                         Tallahassee  FL  32306-3048
                Phone: 1-850-644-2875 ~ Fax: 1-850-644-2581
                      Email: weatherly@ocean.fsu.edu


A.2.  CRUISE SUMMARY INFORMATION

a.    Geographic boundaries:

The area of investigation extends to 7°30'N at the north end of A15 and to 32°S 
at the south end along 19°W.  The A15 line is the eastern boundary of AR15 and 
two sections were done in the AR15 area on the way to and from the A15 line.  
The southern section in AR15 was done along roughly 17° to 19°S from 18°W 
westward to the South American shelf ending at 38°W.  The northern section began 
on the South American shelf at roughly 4°S 38°W and ended at the northern end of 
A15 at 7°30'N 19°W.


b.    Stations occupied:
 
Table 1:  Summary of the number of samples collected.
 
                                         No. of    No. of
             Parameter sampled/measured  stations  samples
             --------------------------  --------  -------
             Salinity                      149      5345
             oxygen                        149      5345
             nutrients                     149      5345
             halocarbons                    96      1641
             CO2 and alkalinity             90
             tritium 17                    136
             sulfur hexafluoride            16        63
             biooptical parameters          34
                surface irradiance
                downwelling irradiance
                upwelling irradiance
                photosynthetically available radiation
                light attenuation
                chlorophyll florescence
                chlorophyll
                particulate absorbance spectra


c.    Floats and drifters deployed:
  
Table 2:  Summary of RAFOS float deployments

           Float   
           ID No.  Latitude     Longitude    Date      Time
           ------  -----------  -----------  --------  -----
           203      0 59.16'S   35 56.49'W   94 04 07  06 28
           210      0 00.089'S  35 56.904'W  94 04 08  06 16
           211      0 59.94'N   35 56.90'W   94 04 09  08 01
           187      3 24.11'S   18 59.94'W   94 04 20  17 50
           186      3 24.16'S   18 59.96'W   94 04 20  17 56
           212      5 30.00'S   19 00.00'W   94 04 21  19 05
           215      5 30.00'S   19 00.00'W   94 04 21  19 15
           214      8 00.27'S   19 00.26'W   94 04 23  02 45
           213      8 00.30'S   19 00.29'W   94 04 23  02 50
           202      9 59.98'S   19 00.01'W   94 04 24  04 xx
           209      9 59.98'S   19 00.01'W   94 04 24  04 xx
           222     11 59.16S    18 59.95'W   94 04 25  03 22
           221     11 59.18'S   18 59.91'W   94 04 25  03 28
           216     13 59.02'S   19 00.05'W   94 04 26  09 40
           206     16 09.16'S   19 00.17'W   94 04 27  14 20
           205     16 01.16'S   19 00.17'W   94 04 27  14 25
           189     18 34.536'S  19 00.098'W  94 04 28  19 23
           188     18 34.527'S  19 00.209'S  94 04 28  19 29
           218     20 08.04'S   19 00.04'W   94 04 29  14 30
           219     20 08.04'S   19 00.08'W   94 04 29  14 36
           207     22 04.98'S   19 00.01'W   94 04 30  15 20
           208     22 04.98'S   19 00.01'W   94 04 30  15 25
           220     24 12.11'S   19 00.07'W   94 05 01  17 22
           158     24 12.11'S   19 00.11'W   94 05 01  17 29
           224     18 23.90'S   22 10.50'W   94 05 11  02 47
           185     18 23.90'S   22 10.50'W   94 05 11  02 53
           157     17 56.60'S   24 49.40'W   94 05 12  11 28
           201     17 56.60'S   24 49.30'W   94 05 12  11 34


A.3.  LIST OF PRINCIPAL INVESTIGATORS

Name and address                     Measurement Responsibility
-----------------------------------  ---------------------------------
Catherine Goyet, WHOI                Total CO2, Total Alkalinity, pCO2
Nelson Hogg, WHOI                    RAFOS floats
William Jenkins, WHOI                Tritium
Jim Ledwell, WHOI                    Sulfur hexafluoride
John Marra, LDEO                     Bio-optics
Ocean Data Facility (J. Swift), SIO  CTD, rosette, oxygen, salinity, nutrients
Breck Owens, WHOI                    RAFOS floats
William Smethie, LDEO                Halocarbons
Georges Weatherly, FSU               Western boundary current meter array at 19° S


A.4.  SCIENTIFIC PROGRAMME AND METHODS

This cruise consisted of three legs (Figure 1) and was a combination 
of legs carried out as part of the Deep Basin Experiment and the WHP one time 
survey. All hydrographic/tracer stations were taken using a SIO/ODF 36-place 
rosette equipped a General Oceanics 36 position pylon and SIO/ODF 10-l 
bottles and interfaced to a SIO/ODF modified NBIS Mark 3 CTD. Stations 
extended from surface to bottom and all rosette samples were analyzed on 
board for salinity, oxygen, phosphate, silicate, nitrate and nitrite. Samples 
were also collected and analyzed on board for the halocarbons, CFC-11, CFC-
12, CFC-113, and CCl4 and for total CO2 and alkalinity. Halocarbons were 
generally sampled on every other station at 20 to 24 depths. Alkalinity and 
CO2 were generally sampled on 3 out of 4 stations. Tritium samples were 
collected on both equatorial crossings and sulfur hexafluoride samples were 
collected at a few select stations in the Brazil Basin. The total numbers of 
the various types of samples collected are presented in Table 1. Casts were 
also taken once per day to 200m for biooptics measurements. These casts were 
normally done between 1000 and 1400 local time on a hydrographic station 
during the CTD/rosette cast, but some separate stations were taken on transit 
lines. RAFOS floats were deployed at various locations along the cruise track 
(Table 2). Generally two floats were deployed at each location, one set for 
2500m and one set for 4000m.

The first leg crossed the western boundary current regime just south 
of the equator and crossed the equator in a north/south line at about 35 
degrees 57 minutes. This line of stations was along the US current meter 
mooring array deployed in the deep channel that connects the Brazil Basin to 
the western North Atlantic Basin. Station spacing was nominally 15nm along 
the mooring line and between 15 and 30¿nm for the western boundary crossing. 
A total of 22 stations were taken along this line.

The second leg extended from 7.5 degrees N to 32 degrees S along 19 
degrees W. This leg is the WHP A15 line. Station spacing was nominally 30nm 
with closer spacing near the equator. A total of 82 stations were taken along 
this line.

The third leg extended across the Brazil Basin from the 19 degree W 
line to the Brazil continental shelf along a line along about 18.5 degrees S. 
The western part of this line was along the US western boundary current meter 
mooring array. Station spacing was nominally 30nm with closer spacing at the 
western boundary. A total of 44 stations were taken along this line.


DESCRIPTION OF  PRELIMINARY HYDROGRAPHIC MEASUREMENTS

This cruise is one of a number of cruises being carried out as part 
of the Deep Basin Experiment.  The overall objective of the Deep Basin 
Experiment is to gain a better understanding of deep circulation in an ocean 
basin and the Brazil Basin was chosen as the site to conduct this experiment.  
The investigation consists of a combination of hydrographic and tracer 
measurements, current meter measurements, subsurface floats, modeling and 
theory.  The overall hydrographic/tracer program consists of several zonal 
and meridional lines which will yield a detailed picture of the 3-dimensional 
distribution of temperature, salinity, oxygen, nutrients, and CFCs.  
Ultimately these data will be used to develop and test models of deep ocean 
circulation. 

This cruise consisted of three legs as described in the Cruise 
Summary Information section.  Two of the legs provided hydrographic/tracer 
measurements along the United States current meter arrays across 1) the 
equatorial channel connecting the Brazil Basin to the western North Atlantic 
and 2) across the deep western boundary current regime at about 19 degrees S.  
The other leg extended along the western flank of the mid-Atlantic Ridge.  
Vertical sections of preliminary data for potential temperature, salinity, 
density, oxygen, and nutrients along these lines are presented in Figures 2, 
3 and 4 and described below.  Note that Figures 3 and 4 are plotted using the 
same scale.  Figure 2 is plotted on an expanded horizontal scale. 

Beneath the main thermocline in the South Atlantic, the water masses 
are comprised of North Atlantic Deep Water flowing southward and Antarctic 
Intermediate Water (AAIW), Circumpolar Deep Water, and Antarctic Bottom Water 
(AABW) flowing northward.  In section I (stations 1-22, Figure 2) AAIW is 
clearly observed as a salinity minimum centered at 700-800m depth and 
extending across the entire section.  The salinity is lowest in the western 
part of the section.  This salinity minimum is associated with a maximum in 
phosphate and nitrate.  At about 1800m there is a salinity maximum associated 
with a silica minimum.  This is the core of upper NADW, which is thought to 
have its origins in the vicinity of the Labrador Sea.  Beneath the upper NADW 
is a thick region of relatively high oxygen, low nutrient water that is 
comprised of denser versions of NADW.  There is an oxygen maximum at the base 
of the NADW complex that apparently originates from the Iceland-Scotland and 
Denmark Strait overflow waters that form the densest components of NADW.  
Cold, fresh, low oxygen, high nutrient water is observed in the equatorial 
channel (stations 10-21) beneath the NADW with a slight intensification on 
the northern side of the channel.  This is AABW flowing from the Brazil Basin 
to the western North Atlantic basin.

The same basic structure is observed in section 3 (stations 110-153, 
Figure 4) except the concentrations of the NADW and AABW cores are western 
intensified indicating flow of these water masses in deep western boundary 
currents.  Also core concentrations are different reflecting mixing along the 
flow path with adjacent water masses.  The AABW layer is colder, fresher, and 
higher in silica and nutrients at section 3 than section 1 since section 3 is 
closer to the source of AABW.  The NADW layer is saltier, lower in silica and 
nutrients and higher in oxygen for section 1 than section 3 since section 1 
is closer to the NADW source regions. 

The same water mass layers are observed in section 2 (Figure 3) which 
extends from 7.5 degrees N to 32 degrees S.  The AAIW salinity minimum 
extends along the entire section and shoals from about 900m at 32 degrees S 
to about 700m at the northern end of the section.  At the southern end, it is 
associated with an oxygen maximum.  NADW is observed as a broad tongue of 
salty, high oxygen, low nutrient water extending southward, becoming thinner 
at higher southern latitudes.  Cores of upper and lower NADW are observed at 
the equator as maxima in oxygen and minima in silica and nutrients.  This 
indicates that this water mass either flows or mixes laterally from the 
western boundary eastward along the equator.  The AABW layer extends along 
the bottom to the equator where it abruptly ends because the section crosses 
the Mid-Atlantic Ridge into the eastern basin at this point. 

One striking feature in section 2 is the anomalous water between 
stations 80 and 82.  From about 1400m to 2500m this water is warmer, saltier, 
higher in oxygen and lower in silica and nutrients than the water to the 
north or south indicating water with stronger NADW characteristics.  In the 
bottom water just the opposite is observed, indicating water with stronger 
AABW characteristics.  The core of the anomalous AABW is centered above a 
fracture zone, the St. Helena Fracture Zone, and is offset slightly to the 
south of the overlying core of anomalous NADW (Figure 3).  On section 3 a 
couple of stations were added east of section 2 to better map these features.  
In addition to finding the anomalous NADW core at the same location 10 days 
later, a second core was seen eastward of it (Figure 4).  The core of 
anomalous AABW has shifted slightly (50 km) towards the east.  The location 
of these features at about 19 degrees S may be the result of the NADW and 
AABW Deep Western Boundary Currents having to flow around the Vitoria-
Trindade Seamount Chain that extends eastward from the Brazilian coast to 28 
degrees W longitude at 21 degrees S. 


COMPARISON OF MEASUREMENTS TO PREVIOUS MEASUREMENTS

The cruise track for this cruise crossed the cruise tracks for the 
South Atlantic Ventilation Experiment (SAVE) and the Hydros Leg 4 cruises, 
which were carried out in the late 1980s, at several locations.  Comparisons 
between the two data sets were made by comparing plots of salinity, oxygen, 
phosphate, nitrate and silica verses potential temperature for the deep 
waters (colder than 6 degrees C).  Differences between cruises indicate 
either a measurement problem or a change in deep water characteristics during 
the 6-7 year period between the two cruises.

The Hydros Leg 4 cruise crossed the deep equatorial channel at nearly 
the same longitude as section 1 of this cruise (36 degrees 30 minutes for 
Hydros Leg 4, 36 degrees, 57 minutes for this cruise).  Salinity, oxygen, 
nitrate, and silica verses potential temperature are in excellent agreement 
for the two cruises.  However for  phosphate, this cruise has much more 
station to station variability than the Hydros Leg 4 cruise although the 
trends in phosphate verses potential temperature are the same for both 
cruises.  The maximum difference between any two stations in the channel for 
the Hydros Leg 4 cruise was 0.05 mM/Kg compared to 0.17 mM/Kg for this cruise.

Comparisons have also been made at the three locations where section 
2 crossed the SAVE cruise track.  Again there was good agreement for 
salinity, oxygen, nitrate, and silicate, but not as good agreement for 
phosphate.  Differences in phosphate concentration of up to 0.1 mM/Kg were 
observed between cruises.


COMPARISON WITH METEOR CRUISE 28/1

This cruise was carried out at the same time as another Deep Basin 
Experiment cruise, Meteor cruise 28/1, which occupied a zonal section across 
the South Atlantic Ocean at 11 deg 20 min S latitude.  The cruise track of 
these two cruises crossed at 11 deg 20 min S, 19 deg W within about 1 week of 
each other.  The Meteor chief scientist, Thomas Mueller, and I arranged to 
have an inter calibration station at the crossing point.  The station numbers 
were 68 for the Knorr cruise and 206 for the Meteor cruise.

Comparisons of the preliminary data were made at sea.  q/S plots of 
the deep CTD data were slightly offset with the Knorr data being either 0.01 
deg higher or 0.001 fresher in salinity than the Meteor data. This is very 
good agreement, but final comparison must await post cruise calibration of 
the CTDs. Vertical profiles of temperature, salinity, oxygen, nitrate and 
silicate showed identical features and were at the same level of precision, 
but there was a systematic difference in the oxygen, nitrate and silicate 
data. The Meteor data was 4% lower than the Knorr data for oxygen and 6% 
lower for nitrate and silicate. Phosphate was not measured for the Meteor 
station. We do not yet know the reason for these differences.


A.5.  MAJOR PROBLEMS AND GOALS NOT ACHIEVED

There were not any major problems on this cruise, but there were some 
minor problems. One was the phosphate measurements which have been discussed 
above. At any given station the vertical profiles were very smooth indicating 
a precision within the WOCE guidelines of 0.4%. However, occasionally there 
appeared to be a shift in calibration between stations that ranged from 1 to 
6%; some of these shifts were larger than the WOCE guideline for accuracy of 
2%. 

There were two minor problems for the chlorofluorocarbon 
measurements. There was a small peak in the blank that eluted a few seconds 
before F-11 which may cause problems for samples with low concentrations. All 
chromatograms were stored and will be reintegrated to separate the area of 
this interference peak from the area of the F-11 peak. There was a large peak 
with the identical retention time as F-113 in water samples taken from the 
oxygen maximum just beneath the base of the mixed layer. This is apparently 
caused by a naturally produced halogenated compound and will render the F-113 
measurements useless for this depth region. However, F-113 is not a routine 
WOCE parameter.


A.6.  OTHER INCIDENTS OF NOTE
      None noted.


LIST OF FIGURES (shown in pdf file)

Fig. 1:   WOCE A15/Deep Basin Experiment
          R/V Knorr, Mercator Projection
Fig. 2a:  POTENTIAL TEMPERATURE (šC)
Fig. 2b:  SALINITY (PSU)
Fig. 2c:  SIGMA THETA
Fig. 2d:  SIGMA 4
Fig. 2e:  BOTTLE O2 (UM/KG)
Fig. 2f:  PO4 (UM/KG)
Fig. 2g:  NO3 (UM/KG)
Fig. 2h:  SIO3 (UM/KG)
Fig. 3a:  POTENTIAL TEMPERATURE (šC)
Fig. 3b:  SALINITY (PSU)
Fig. 3c:  SIGMA THETA
Fig. 3d:  SIGMA 4
Fig. 3e:  BOTTLE O2 (UM/KG)
Fig. 3f:  PO4 (UM/KG)
Fig. 3g:  NO3 (UM/KG)
Fig. 3h:  SIO3 (UM/KG)
Fig. 4a:  POTENTIAL TEMPERATURE (šC)
Fig. 4b:  SALINITY (PSU)
Fig. 4c:  SIGMA THETA
Fig. 4d:  SIGMA 4
Fig. 4e:  BOTTLE O2 (UM/KG)
Fig. 4f:  PO4 (UM/KG)
Fig. 4g:  NO3 (UM/KG)
Fig. 4h:  SIO3 (UM/KG)


A.7.  LIST OF CRUISE PARTICIPANTS

NAME/AFFILIATION/ADDRESS               RESPONSIBILITY
-------------------------------------  --------------------------------------
William M. Smethie, Jr.                Co-Chief Scientist
Lamont-Doherty Earth Observatory
Palisades, NY 10964
bsmeth@ldeo.columbia.edu

George Weatherly                       Co-Chief Scientist
Florida State University
Tallahassee, FL 32306

Craig Hallman                          Salt analyst, rosette handler, sampler
Ocean Data Facility
Scripps Institution of Oceanography
La Jolla, CA 92093

Mary Johnson                           CTD data processing
Ocean Data Facility
Scripps Institution of Oceanography
La Jolla, CA 92093

Leonard Lopez                          O2 analyst, rosette handler, sampler
Ocean Data Facility
Scripps Institution of Oceanography
La Jolla, CA 92093

Carl Mattson                           Electronics Tech, rosette handler
Ocean Data Facility
Scripps Institution of Oceanography
La Jolla, CA 92093

Rebecca Streib Montee                  Nutrient analyst
Ocean Data Facility
Scripps Institution of Oceanography
La Jolla, CA 92093

Stacy Morgan                           Nutrient analyst
Ocean Data Facility
Scripps Institution of Oceanography
La Jolla, CA 92093

Ron Patrick                            Data processing, O2 analyst, rosette handler
Ocean Data Facility
Scripps Institution of Oceanography
La Jolla, CA 92093

Eugene Gorman                          CFC analyst
Lamont-Doherty Earth Observatory
Palisades, NY 10964


NAME/AFFILIATION/ADDRESS               RESPONSIBILITY
-------------------------------------  --------------------------------------
Carol Knudson                          Biooptics analyst, salt analyst, rosette handler, sampler
Lamont-Doherty Earth Observatory
Palisades, NY 10964

Xian-Feng (Frank) Zheng                CFC analyst
Lamont-Doherty Earth Observatory
Palisades, NY 10964

Bob Adams                              CO2 analyst
Woods Hole Oceanographic Institution
Woods Hole, MA 02543

Joanne Donoghue                        CO2 analyst
Woods Hole Oceanographic Institution
Woods Hole, MA 02543

Will Handley                           Knorr Resident Tech.
Woods Hole Oceanographic Institution
Woods Hole, MA 02543

Nancy Hayward                          CO2 analyst
Woods Hole Oceanographic Institution
Woods Hole, MA 02543

Mariann McAllister                     CO2 analyst
Tufts University

Damon Chaky                            Salt analyst, rosette handler, sampler
Mississippi State University
Mississippi State, MS 39762

Antonio Da Silva Fraga Filho           Brazilian Observer
Brazilian Navy
Brazil


______________________________________________________________________________________________
______________________________________________________________________________________________


B.    UNDERWAY MEASUREMENTS

Underway measurements were made for bathymetry, ADCP, temperature and 
salinity using the thermosalinograph, pCO2, and meteorology. The Ocean Data 
Facility is responsible for the bathymetric data and Catherine Goyet of Woods 
Hole Oceanographic Institution is responsible for the pCO2 data. Funding has 
not been provided for the collection of the temperature, salinity, ADCP, and 
meteorology data. The raw data has been submitted to the WOCE Hydrographic 
Office in Woods Hole for archival and distribution to interested 
investigators.


                    World Ocean Circulation Experiment
                               A15 and AR15
                           Deep Basin Experiment
                        R/V Knorr Voyage 142 Leg 3
                        3 April 1994 - 21 May 1994
                     Recife, Brazil - Salvador, Brazil
                           Expocode:  316N142/3

                Chief Scientist:  Dr. William Smethie, Jr.
                     Lamont-Doherty Earth Observatory
                            Columbia University


                         A15 and AR15 Cruise Track

                     Oceanographic Data Facility (ODF)
                            Final Cruise Report
                             October 18, 1996

                            Data Submitted by:
                        Oceanographic Data Facility
                    Scripps Institution of Oceanography
                          La Jolla, CA 92093-0214



1.  DESCRIPTION OF MEASUREMENT TECHNIQUES AND CALIBRATIONS

Basic Hydrography Program

The basic hydrography program consisted of salinity, dissolved oxygen and
nutrient (nitrite, nitrate, phosphate and silicate) measurements made from
bottles taken on CTD/rosette casts, plus pressure, temperature, salinity
and dissolved oxygen from CTD profiles.  158 CTD/rosette casts were made,
usually to within 5 meters of the bottom.  149 casts at Stations 1-22, 26
and 28-153 were reported.  Three test casts, one prior to the first station
and two CTD #10 tests, were not reported.  Six casts were aborted and not
reported, four for winch problems and two for technical difficulties at
launch time.  Another cast was aborted because the ship was not at the
desired position; this cast (station 10 cast 1) was reported with the final
CTD data.  Stations 23-25 and 27 had MER bio-optics casts only; CTD/bottle
data were neither collected nor reported for these stations.  5319 bottles
were tripped resulting in 5188 usable bottles.  No insurmountable problems
were encountered during any phase of the operation.  The resulting data set
met and in many cases exceeded WHP specifications.  The distribution of
samples is illustrated in Figures 1.0.0, 1.0.1, and 1.0.2.


Figure 1.0.0:  AR15 sample distribution, stas 1-22, 26, 28
Figure 1.0.1:  A15 sample distribution, stas 28-109
Figure 1.0.2:  AR15 sample distribution, stas 110-153


1.1.  Water Sampling Package

Hydrographic (rosette) casts were performed with a rosette system
consisting of a 36-bottle rosette frame (ODF), a 36-place pylon (General
Oceanics 1016) and 36 10-liter PVC bottles (ODF). Underwater electronic
components consisted of an ODF-modified NBIS Mark III CTD (ODF #10 or ODF
#4) and associated sensors, Benthos altimeter and Benthos pinger.  The CTD
was mounted horizontally along the bottom of the rosette frame, with the
dissolved oxygen sensor deployed alongside.  The altimeter provided
distance-above-bottom in the CTD data stream.  The pinger was monitored
during a cast with a precision depth recorder (PDR) in the ship's
laboratory.  The rosette system was suspended from a three-conductor
electro-mechanical cable.  Power to the CTD and pylon was provided through
the cable from the ship.  Separate conductors were used for the CTD and
pylon signals.  Deep Sea Reversing Thermometers (DSRTs) were used on this
leg to monitor for CTD pressure or temperature drift.

CTD #10 was used for stations 1-60 of the WOCE-A15/AR15 expedition.  CTD #4
was used for the remainder of the cruise, stations 61-153.

Each rosette cast was performed to within 5 meters of the bottom, unless
the bottom returns from both the pinger and altimeter were extremely poor
or the bottom depth exceeded the range of the instrumentation.  Bottles on
the rosette were each identified with a unique serial number.  Usually
these numbers corresponded to the pylon tripping sequence, 1-36, where the
first (deepest) bottle tripped was bottle #1.  During the first 10 days,
there were many samples lost because the o-rings were falling out of place
before the bottle closed.  Bottle replacements, numbered 37 through 42,
were necessary.  Table 1.1.0 shows the rosette position and the
corresponding replacement bottle number.


Table 1.1.0:  WOCE A15/AR15 Bottle Replacements

                    STATIONS | ROSETTE  | REPLACEMENT
                    AFFECTED | POSITION |  BOTTLE #  
                    ---------|----------|------------
                     22      |     2    |     39     
                     26-153  |    18    |     40     
                      8-153  |    30    |     37     
                     26-153  |    32    |     41     
                    150-152  |    33    |     42     
                      8-153  |    34    |     38     
                     34-51   |    35    |     42     
                      9-21   |    36    |     39     
                     22      |    36    |      2     
                     23-153  |    36    |     39     


The replacement bottles had the o-rings in the body of the bottle as
opposed to the original set of 36 which had the o-rings in the endcaps.
During the rest of the cruise, the rosette worked well with only an
occasional lanyard hangup or dislodged o-ring.  On Station 22, bottle 39
was placed in rosette position 2, and bottle 2 in rosette position 36, to
get a freon blank for bottle 39.  There were two other stations where the
bottles were tripped in a special sequence for freon checks.  The trip
sequences, deepest to shallowest, were 7-36, then 1-6, at station 49; and
bottles 19-36, then 1-18, at station 78.

Averages of CTD data corresponding to the time of bottle closure were
associated with the bottle data during a cast.  Pressure, depth,
temperature, salinity and density were immediately available to facilitate
examination and quality control of the bottle data as the sampling and
laboratory analyses progressed.

The deck watch prepared the rosette approximately 45 minutes prior to a
cast.  All valves, vents and lanyards were checked for proper orientation.
The bottles were cocked and all hardware and connections rechecked.  Upon
arrival at station, time, position and bottom depth were logged and the
deployment begun.  The rosette was moved into position under a projecting
boom from the rosette room using an air-powered cart on tracks.  Two
stabilizing tag lines were threaded through rings on the frame.  CTD sensor
covers were removed and the pinger was turned on.  Once the CTD acquisition
and control system in the ship's laboratory had been initiated by the
console operator and the CTD and pylon had passed their diagnostics, the
winch operator raised the package and extended the boom over the side of
the ship.  The package was then quickly lowered into the water, the tag
lines removed and the console operator notified by radio that the rosette
was at the surface.

Recovering the package at the end of deployment was essentially the reverse
of the launching.  Two tag lines connected to air tuggers and terminating
in large snap hooks were manipulated on long poles by the deck watch to
snag recovery rings on the rosette frame.  The package was then lifted out
of the water under tension from the tag lines, the boom retracted, and the
rosette lowered onto the cart.  Sensor covers were replaced, the pinger
turned off and the cart with the rosette moved into the rosette room for
sampling.  A detailed examination of the bottles and rosette occurred
before samples were taken, and any extraordinary situations or
circumstances were noted on the sample log for the cast.

Routine CTD maintenance included soaking the conductivity and CTD O2
sensors in distilled water between casts to maintain sensor stability.  The
rosette was stored in the rosette room between casts to insure the CTD was
not exposed to direct sunlight or wind in order to maintain the internal
CTD temperature near ambient air temperature.

Rosette maintenance was performed on a regular basis.  o-rings were changed
as necessary and bottle maintenance performed each day to insure proper
closure and sealing.  Valves were inspected for leaks and repaired or
replaced as needed.


1.2.  Underwater Electronics Packages

CTD data were collected with a modified NBIS Mark III CTD (ODF CTD #10 or
#4).  Either instrument provided pressure, temperature, conductivity and
dissolved O2 channels, and additionally measured a second temperature as a
calibration check.  Other data channels included elapsed-time, an altimeter
and several power supply voltages.  The instruments supplied a standard
15-byte NBIS-format data stream at a data rate of 25 Hz.  Modifications to
the instruments included a revised dissolved O2 sensor mounting,
implementation of 8-bit and 16-bit multiplexer channels, an elapsed-time
channel, instrument ID in the polarity byte and power supply voltages
channels.

Table 1.2.0 summarizes the winches and serial numbers of instruments and
sensors used during A15/AR15.


Table 1.2.0:  A15/AR15 Instrument/Sensor Serial Numbers

                  Station(s)    | CTD@ | Oxygen  | Winch
                                | ID#  | Sensor  |      
                ----------------|------|---------|------
                   998,1-15     |      |         | Port 
                ----------------|      |         |------
                  16-19cast1    | 10a  |         | Stbd.
                ----------------|      |         |------
                  19cast2-60    |      |         |      
                ----------------|------|         | Port 
                    61-109      |  4a  |         |      
                ----------------|------|         |------
                   777/test     | 10b  |         |      
                ----------------|------|         | Stbd.
                    110-115     |      |         |      
                ----------------|  4b  |         |------
                    116-123     |      |         |      
                ----------------|------| 3-11-31 |      
                   778/test     | 10b  |         | Port 
                ----------------|------|         |      
                    124-127     |      |         |      
                ----------------|      |         |------
                      128       |      |         | Stbd.
                ----------------|      |         |------
                    129-136     |      |         | Port 
                ----------------|  4b  |         |------
                137-138casts1,2 |      |         | Stbd.
                ----------------|      |         |------
                138casts4,5-150 |      |         | Port 
                ----------------|      |         |------
                    151-153     |      |         | Stbd.


               @ ODF CTDs #4 and #10 sensor serial numbers:

               |     Paine     |   Rosemount   |     NBIS    
           ODF |    Model      |  Model 171BJ  |    Model    
           CTD | 211-35-440-05 |  Temperature  | 09035-00151 
           ID# |   Pressure    | PRT1  | PRT2  | Conductivity
           ----|---------------|-------|-------|-------------
           4a  |               |       | 10500 |             
           ----|     none      | 15765 |-------|     H136    
           4b  |               |       | 16186 |             
           ----|---------------|-------|-------|-------------
           10a |               |       |       |     H137    
           ----|    150089     | 16185 | 16187 |-------------
           10b |               |       |       |      N5     


The O2 sensor was deployed in an ODF-designed pressure-compensated holder
assembly mounted separately on the rosette frame and connected to the CTD
by an underwater cable.

Although the secondary temperature sensor was located within 6 inches of
the CTD conductivity sensor, it was not sufficiently close to calculate
coherent salinities.  It was used as a secondary temperature calibration
reference rather than as a redundant sensor, with the intent of eliminating
the need for mercury or electronic DSRTs as calibration checks.

The General Oceanics (GO) 1016 36-place pylon was used in conjunction with
the GO pylon deck unit.  There were occasional tripping problems caused by
the GO pylon/deck unit combination.  Usually these could be resolved by the
console operator via the pylon diagnostics routine.  The pylon emitted a
confirmation message containing its current notion of bottle trip position,
which was an aid in sorting out mis-trips.  The GO pylon took a variable
amount of time to trip a bottle after the trip had been initiated.  The
trip time varied from 4.5 to 18 seconds, with one exception of nearly 30
seconds.  The acquisition software began averaging data corresponding to
the rosette trip as soon as the trip was initiated, ending when the trip
confirmed.  Consequently, CTD rosette trip data used for the differences
contained variable-length averages.  This could have caused the standard
deviation of bottle-CTD salinity differences to be less than optimal,
especially in higher-gradient areas with longer averages.


1.3.  Navigation and Bathymetry Data Acquisition

Navigation data were acquired from the ship's Magnavox MX GPS system via
RS-232. Data were logged automatically at one-minute intervals by one of
the Sun SPARCstations. Underway bathymetry was logged manually from the 12
kHz Raytheon PDR at five-minute intervals, then merged with the navigation
data to provide a time-series of underway position, course, speed and
bathymetry data. These data were used for all station positions, PDR
depths, and for bathymetry on vertical sections [Cart80].


1.4.  CTD Data Acquisition, Processing and Control System

The CTD data acquisition, processing  and control system consisted of a Sun
SPARCstation 2 computer workstation, ODF-built CTD deck unit, General
Oceanics 1016 pylon deck unit, CTD and pylon power supplies, and a VCR
recorder for real-time analog backup recording of the sea-cable signal.
The Sun system consisted of a color display with trackball and keyboard
(the CTD console), 18 RS-232 ports, 2.5 GB disk and 8mm cartridge tape.
One other Sun SPARCstation 2 system was networked to the data acquisition
system, as well as to the rest of the networked computers aboard the Knorr.
These systems were available for real-time CTD data display and provided
for hydrographic data management and backup.  Each Sun SPARCstation was
equipped with a printer and an 8-color drum plotter.

The CTD FSK signal was demodulated and converted to a 9600 baud RS-232C
binary data stream by the CTD deck unit.  This data stream was fed to the
Sun SPARCstation.  The pylon deck unit was connected to the data
acquisition system through a serial port, allowing the data acquisition
system to initiate and confirm bottle trips.  A bitmapped color display
provided interactive graphical display and control of the CTD rosette
sampling system, including real-time raw and processed data, navigation,
winch and rosette trip displays.

The CTD data acquisition, processing and control system was prepared by the
console watch a few minutes before each deployment.  A console operations
log was maintained for each deployment, containing a record of every
attempt to trip a bottle as well as any pertinent comments.  Most CTD
console control functions, including starting the data acquisition, were
initiated by pointing and clicking a trackball cursor on the display at
icons representing functions to perform.  The system then presented the
operator with short dialog prompts with automatically-generated choices
that could either be accepted as defaults or overridden.  The operator was
instructed to turn on the CTD and pylon power supplies, then to examine a
real-time CTD data display on the screen for stable voltages from the
underwater unit.  Once this was accomplished, the data acquisition and
processing was begun and a time and position automatically associated with
the beginning of the cast.  A backup analog recording of the CTD signal was
made on a VCR tape, which was started at the same time as the data
acquisition.  A rosette trip display and pylon control window then popped
up, giving visual confirmation that the pylon was initializing properly.
Various plots and displays were initiated.  When all was ready, the console
operator informed the deck watch by radio.

Once the deck watch had deployed the rosette and informed the console
operator that the rosette was at the surface (also confirmed by the
computer displays), the console operator or watch leader provided the winch
operator with a target depth (wire-out) and maximum lowering rate, normally
60 meters/minute for this package.  The package then began its descent,
typically at a steady rate without any stops during the down-cast.

There were numerous problems with both the port and starboard winches
during A15/AR15.  When problems occurred, the winch operator stopped the
descent or recovery in order to check the winch.  These stops often caused
a problem in fitting CTD oxygen data because the raw oxygen signal shifted
as oxygen became depleted in water near the stationary sensor.  Winch
operators attempted to defer check-stops to up-casts whenever possible on
later casts.

The console operator examined the processed CTD data during descent via
interactive plot windows on the display, which could also be run at other
workstations on the network.  Additionally, the operator decided where to
trip bottles on the up-cast, noting this on the console log.  The PDR was
monitored to insure the bottom depth was known at all times.

The watch leader assisted the console operator when the package was ~400
meters above the bottom by monitoring the range to the bottom using the
distance between the rosette's pinger signal and its bottom reflection
displayed on the PDR.  Between 100 and 60 meters above the bottom,
depending on bottom conditions, the altimeter typically began signaling a
bottom return on the console.  The winch and altimeter displays allowed the
watch leader to refine the target depth relayed to the winch operator and
safely approach to within 5 meters of the bottom.

Bottles were tripped by pointing the console trackball cursor at a graphic
firing control and clicking a button.  The data acquisition system
responded with the CTD rosette trip data and a pylon confirmation message
in a window.  A bad or suspicious confirmation signal typically resulted in
the console operator repositioning the pylon trip arm via software, then
re-tripping the bottle, until a good confirmation was received.  All
tripping attempts were noted on the console log.  The console operator then
directed the winch operator to the next bottle stop.  The console operator
was also responsible for generating the sample log for the cast.

After the last bottle was tripped, the console operator directed the deck
watch to bring the rosette on deck.  Once the rosette was on deck, the
console operator terminated the data acquisition and turned off the CTD,
pylon and VCR recording.  The VCR tape was filed.  Usually the console
operator also brought the sample log to the rosette room and served as the
sample cop.


1.5.  CTD Data Processing

ODF CTD processing software consists of over 30 programs running under the
Unix operating system.  The initial CTD processing program (ctdba) is used
either in real-time or with existing raw data sets to:

 o  Convert raw CTD scans into scaled engineering units, and assign
    the data to logical channels;
 o  Filter various channels according to specified filtering
    criteria;
 o  Apply sensor- or instrument-specific response-correction
    models;
 o  Provide periodic averages of the channels corresponding to the
    output time-series interval; and
 o  Store the output time-series in a CTD-independent format.

Once the CTD data are reduced to a standard-format time-series, they can be
manipulated in various ways.  Channels can be additionally filtered.  The
time-series can be split up into shorter time-series or pasted together to
form longer time-series.  A time-series can be transformed into a pressure-
series, or into a larger-interval time-series.  The pressure calibration
corrections are applied during reduction of the data to time-series.
Temperature, conductivity and oxygen corrections to the series are
maintained in separate files and are applied whenever the data are
accessed.

ODF data acquisition software acquired and processed the CTD data in real-
time, providing calibrated, processed data for interactive plotting and
reporting during a cast.  The 25 Hz data from the CTD were filtered,
response-corrected and averaged to a 2 Hz (0.5-second) time-series.  Sensor
correction and calibration models were applied to pressure, temperature,
conductivity and O2.  Rosette trip data were extracted from this time-
series in response to trip initiation and confirmation signals.  The
calibrated 2 Hz time-series data were stored on disk (as were the 25 Hz raw
data) and were available in real-time for reporting and graphical display.
At the end of the cast, various consistency and calibration checks were
performed, and a 2.0 db pressure-series of the down-cast was generated and
subsequently used for reports and plots.

CTD plots generated automatically at the completion of deployment were
checked daily for potential problems.  The two PRT temperature sensors were
inter-calibrated and checked for sensor drift.  The CTD conductivity
sensors were monitored by comparing CTD values to check-sample
conductivities and by deep T-S comparisons with adjacent stations.  The CTD
O2 sensor was calibrated to check-sample data.

A few casts exhibited conductivity offsets due to biological or particulate
artifacts.  Some casts were subject to noise in 1 or more channels caused
by sea cable or slip-ring problems.  Intermittent noisy data were filtered
out of the 2 Hz data using a spike-removal filter.  A least-squares
polynomial of specified order was fit to fixed-length segments of data.
Points exceeding a specified multiple of the residual standard deviation
were replaced by the polynomial value.

Density inversions can appear in high-gradient regions.  Detailed
examination of the raw data shows significant mixing occurring in these
areas because of ship roll.  In order to minimize density inversions, a
ship-roll filter was applied to all casts during pressure-sequencing to
disallow pressure reversals.

Multiple casts exhibited up to a .02 density drop during the top 10 db, or
much lower densities in the top few meters of the water column.  A time-
series data check verified these density differences were probably real:
the data were consistent over many frames of data at the same pressures.
Appendix C details the magnitude of the density drops or gradients for the
casts affected.

Pressure intervals with no time-series data can optionally be filled by
double-parabolic interpolation.

When the down-cast CTD data have excessive noise, gaps or offsets, the up-
cast data are used instead.  CTD data from down- and up-casts are not mixed
together in the pressure-series data because they do not represent
identical water columns (due to ship movement, wire angles, etc.).  The 15
up-casts used for final A15/AR15 data are indicated in Appendix C.

There is an inherent problem in the internal digitizing circuitry of the
NBIS Mark III CTD when all the bits flip at once.  Raw temperature can
shift 1-2 millidegrees as values cross between positive and negative
values, a problem avoided by offsetting the raw PRT readings by ~1.5 deg.C.
The conductivity channel also can shift by .001-.002 mmho/cm as raw data
values change between 32767/32768.  This is typically not a problem in
shallow to intermediate depths because such a small shift becomes
negligible in higher gradient areas.  However, in the middle to south
Atlantic Ocean, this shift can occur in deep water and will be quite
visible on deep theta-salinity plots.  This digitizing problem occurred on
a few casts during A15/AR15.  The affected conductivity data between
stations 29-40 were identified and offset to negate the shift caused by the
digitizing problem.  Station 42 was also minimally impacted; attempts to
offset data in the vicinity of 4700 db made the offsetting worse, so this
cast was not changed.

Appendix C contains a table of CTD casts requiring special attention;
A15/AR15 CTD-related comments, problems and solutions are documented in
detail.


1.6.  CTD Laboratory Calibration Procedures

Pre-cruise laboratory calibrations of CTD pressure and temperature sensors
were used to generate tables of corrections applied by the CTD data
acquisition and processing software at sea.  These laboratory calibrations
were also performed post-cruise.

Pressure and temperature calibrations were performed on CTD #10 and CTD #4
at the ODF Calibration Facility in La Jolla.  The pre-cruise calibrations
were done in January 1994 before the start of the A15/AR15 expedition, and
the post-cruise calibrations were done in July 1994.

The CTD pressure transducers were calibrated in a temperature-controlled
water bath to a Ruska Model 2400 Piston Gage pressure reference.
Calibration data were measured at -1.05/-0.99, 13.72/18.56 and 30.92/30.84
deg.C to 2 maximum loading pressures (1400 and 6080 db) pre-/post-cruise.
Figures 1.6.0 and 1.6.1 summarize the CTD #10 laboratory pressure
calibrations performed in January and July 1994.  Figures 1.6.2 and 1.6.3
show the same for CTD #4.


Figure 1.6.0:  Pressure calibration for ODF CTD #10, January 1994.
Figure 1.6.1:  Pressure calibration for ODF CTD #10, July 1994.
Figure 1.6.2:  Pressure calibration for ODF CTD  #4, January 1994.
Figure 1.6.3:  Pressure calibration for ODF CTD  #4, July 1994.


Additionally, dynamic thermal-response step tests were conducted on the
pressure transducer to calibrate dynamic thermal effects.

CTD PRT temperatures were calibrated to an NBIS ATB-1250 resistance bridge
and Rosemount standard PRT in a temperature-controlled bath.  The primary
and secondary CTD temperatures were offset by ~1.5 deg.C to avoid the
0-point discontinuity inherent in the internal digitizing circuitry.
Standard and PRT temperatures were measured at 9 or more different bath
temperatures between -1 and 31  deg.C, both pre- and post-cruise.  Figure
1.6.4 summarizes the laboratory calibration performed on the CTD #10
primary PRT during January 1994.  Figures 1.6.5 and 1.6.6 summarize the
laboratory calibrations performed on the CTD #10 secondary PRT during
January and July 1994.  Figures 1.6.7 and 1.6.8 summarize the laboratory
calibrations performed on the CTD #4 primary PRT during January and July
1994.


Figure 1.6.4:  Primary   PRT Temperature Calibration for ODF CTD #10, January 1994.
Figure 1.6.5:  Secondary PRT Temperature Calibration for ODF CTD #10, January 1994.
Figure 1.6.6:  Secondary PRT Temperature Calibration for ODF CTD #10, July 1994.
Figure 1.6.7:  Primary   PRT Temperature Calibration for ODF CTD  #4, January 1994.
Figure 1.6.8:  Primary   PRT Temperature Calibration for ODF CTD  #4, July 1994.


The CTD #10 primary PRT post-cruise calibration is not shown because that
sensor was effectively destroyed after its last use on the cruise.
Calibrations for the CTD #10 secondary PRT are shown because PRT2 changes
were used to determine the PRT1 calibration.  The CTD #4 secondary PRT was
changed mid-cruise, so its pre- and post-cruise calibrations are not useful
to compare and are not shown.

These laboratory temperature calibrations were referenced to an ITS-90
standard.  Temperatures were converted to the IPTS-68 standard during
processing in order to calculate other parameters, including salinity and
density, which are currently defined in terms of that standard only.  Final
calibrated CTD temperatures were reported using the ITS-90 standard.


1.7.  Final CTD Calibration Procedures

A redundant sensor was used on each CTD as a temperature calibration check
while at sea.  CTD conductivity and dissolved O2 were calibrated to in-situ
check samples collected during each rosette cast.

ODF CTD #10 was used during stations 1-60.  It developed a non-linear drift
in the conductivity channel starting at station 51.  The problem was noted
when bottle salinity results for station 53 became available, after station
56 had been completed.  The CTD #10 conductivity sensor was cleaned prior
to station 57, but the drifting problem continued.  When bottle salinities
for station 57 became available after station 60, it was apparent that the
drift remained.  CTD #10 was removed, and ODF CTD #4 was used from station
61 to the end of the cruise.  Its second temperature drifted more than -.03
deg.C from stations 80-100.  The CTD #4 secondary temperature sensor was
replaced after station 109, and no further drift was noted.


1.7.1.  Pressure and Temperature

The final pressure and temperature calibrations were determined for both
CTD #10 and CTD #4 during post-cruise processing.

A second Rosemount PRT sensor was deployed as the secondary temperature
channel and compared with the primary PRT channel on all casts during this
expedition to monitor for drift.  The response times of the sensors were
first matched, then preliminary corrected temperatures were compared for a
series of standard depths from each CTD down-cast.

One or two racks of DSRTs were deployed approximately once daily beginning
at station 26 as a further check for pressure and temperature drift.

DSRT-CTD pressure differences varied up to 2 db for any particular rack.
DSRTs used for pressure had last been calibrated 3-8 years prior to this
cruise and were merely used to verify that the pressure calibrations were
reasonably stable during the cruise.


CTD #10

There was a slope change of ~2.5-db from 0-6200 db between the pre- and
post-cruise cold "deep" pressure laboratory calibrations.  The shallow
sections of each calibration shifted by ~+2.0 to +2.5 db pre- to post-
cruise, while the deep section of the cold calibration shifted by ~-0.5 db.
In order to determine when the shift occurred, start-of-cast out-of-water
pressure and temperature data from the cruise were compared with similar
data from the pre- and post-cruise laboratory calibrations for temperature.
The pressure data from the cruise were within 0.5 db of the post-cruise
laboratory data at all temperatures, so the post-cruise pressure
calibration was applied for CTD #10.

The CTD #10 primary temperature sensor (PRT1) used during A15/AR15 was
ruined during a test cast following its last use on the cruise.  The CTD
#10 conductivity sensor was changed after station 60; when the CTD was
tested later in the cruise, the new conductivity sensor was defective and
flooded the turret containing it and the primary PRT.  This effectively
ruined the primary PRT and made post-cruise calibration results useless for
calibration checks.

The CTD #10 secondary temperature sensor (PRT2) was not affected by the
flooded turret because it was mounted in a different turret.  Using the
PRT2 sensor for reporting CTD data was not a reasonable solution because
its distance from the single conductivity sensor would cause an
unacceptable level of noise in CTD salinity.  Since PRT1 was not destroyed
until after its use during the cruise, a comparison of shipboard PRT1 and
PRT2 data, combined with changes in the PRT2 laboratory calibrations, was
used to decide if any further correction was required for PRT1.

There was a constant offset maintained between the two PRTs on CTD #10.
Figure 1.7.1.0 summarizes the shipboard comparison between the primary and
secondary PRT channels for CTD #10.


Figure 1.7.1.0:  Shipboard comparison of CTD #10 primary/secondary PRT channels, 
                 pressure>1000db.


The pre- and post-cruise laboratory calibrations showed an average shift of
+.0013 deg.C in the PRT2 correction.  Deep shipboard-corrected PRT1-PRT2
differences for CTD #10 averaged +.0025 deg.C; half of this difference
could be accounted for by the pre-/post-cruise shift in the PRT2
calibration.  The remaining .0012 deg.C difference was subtracted from the
PRT1 pre-cruise calibration and applied to A15/AR15 CTD #10 data.  Whether
there was a .0025 shift in PRT1 prior to the cruise, or the PRT2 shift
occurred before the cruise, this extra correction would bring the CTD #10
PRT1 temperature within the .002 deg.C WOCE accuracy specifications for CTD
temperature.

Shipboard DSRT-PRT1 differences varied from -.0051 to +.0035 deg.C,
averaging ~-.001 deg.C, for the most frequently used rack.  This supported
the decision to apply the offset to the CTD #10 PRT1 pre-cruise calibration
for final temperature data.


CTD #4

There was an ~1.5-db slope change from 0-6200 db between the pre- and post-
cruise cold "deep" pressure laboratory calibrations.  The shallow sections
of each calibration shifted by ~+1.0 db pre- to post-cruise, while the deep
section of the cold calibration shifted by ~-0.5 db.  In order to determine
when the shift occurred, start-of-cast out-of-water pressure and
temperature data from the cruise were compared with similar data from the
pre- and post-cruise laboratory calibrations for temperature.  The pressure
data from the cruise were within 0.5 db of the post-cruise laboratory data
at all temperatures, so the post-cruise pressure calibration was applied
for CTD #4.

The laboratory calibrations for the CTD #4 primary temperature sensor
(PRT1), show a +.004 deg.C shift near 0 deg.C and a +.003 deg.C shift near
30 deg.C.  Daily shipboard DSRT-PRT1 differences varied from -.0040 to
+.0093 deg.C, averaging ~+.004 deg.C, for the most frequently used rack.

Comparison of the two CTD #4 PRTs showed a steady drift from stations
84-100.  The stability of the CTD #4 conductivity calibrations during these
stations excluded PRT1 as the problem.  The CTD #4 PRT2a was replaced
between stations 109 and 110, during a 3-day run between two lines of the
cruisetrack.  A rough correction for this new PRT2b was determined
shipboard using shipboard-corrected PRT1 values as the standard.
PRT1-PRT2b differences were monitored to check for PRT1 drift; the
differences were stable and indicated no significant drift in either PRT1
or PRT2b during the remainder of the cruise.  Figure 1.7.1.1 summarizes the
shipboard comparison between the primary and secondary PRT channels for CTD
#4.


Figure 1.7.1.1:  Shipboard comparison of CTD #4 primary/secondary PRT channels, 
                 pressure>1000db.


In order to determine when the PRT1 shift occurred, differences between
PRT1 and PRT2 or DSRT temperatures were examined.  Deep PRT1-PRT2
differences for stations 60-80, the first 20 casts where CTD #4 was used,
show a slight downward drift from ~-.002 deg.C to -.005 deg.C.  This could
indicate a need for a more positive correction to PRT1, or it could be the
start of PRT2a's problems.  No significant drift was noted from stations
110 to the end, nor was any drift noted in DSRT-PRT1 differences during all
of CTD #4's use.

An equally weighted average of the PRT1 pre- and post-cruise calibrations
was applied to CTD #4 temperature data.  This pulled the PRT1-PRT2 and
DSRT-PRT1 differences closer to 0, and brought the PRT1 values up to the
.002 deg.C WOCE standard for CTD temperature.  Figure 1.7.1.2 summarizes
the average of the pre-/post-cruise laboratory temperature calibrations for
CTD #4.


Figure 1.7.1.2:  Primary temperature calibration for ODF CTD #4, January/July
                 1994 average.


Summary of Residual Temperature Differences

The residual DSRT-PRT1 differences for the same DSRTs were nearly the same
for CTDs #10 and #4 after final CTD temperature corrections were applied
(.0015-.002 deg.C).  Figure 1.7.1.3 summarizes the final DSRT-CTD
differences for all casts where thermometer racks were used.


Figure 1.7.1.3:  Temperature residual differences vs station # (after correction).


1.7.2.  Conductivity

The CTD rosette trip pressure and temperature were used with the bottle
salinity to calculate a bottle conductivity.  Differences between the
bottle and CTD conductivities were then used to derive a conductivity
correction as a linear function of conductivity.


CTD #10

Cast-by-cast comparisons of bottle-CTD conductivities showed a fairly
constant downward drift in the conductivity differences after the first few
casts.  There was a small shift during the 4-day run between stations 22
and 28, then a slower downward drift continued from stations 31-50.  There
was a dramatic change beginning at station 51: the spread in preliminary
bottle-CTD differences was about .02 mmho/cm for bottles greater than 1500
db, four times the .005 mmho/cm spread seen on previous casts.  Autosal
problems were ruled out by re-running a few casts on a second Autosal; then
the CTD conductivity sensor was aggressively cleaned after station 56.  The
bottle-CTD offset shifted at this point because of the cleaning, but the
wide spread in deep differences persisted.  CTD #10 was replaced by CTD #4
after station 60.

Conductivity differences were fit to CTD conductivity for stations 1-50 to
determine the mean conductivity slope.  The individual station slopes were
fit as a function of station number, and the smoothed slopes were applied
to each CTD #10 cast, including stations 51-60.  The conductivity slopes
for stations 51-60 were later re-checked/adjusted after correcting
conductivity for pressure dependence.  The conductivity slope corrections
are summarized in figure 1.7.2.0.


Figure 1.7.2.0:  CTD #10 conductivity slope corrections by station number.


After applying the conductivity slopes, residual CTD #10 conductivity
offset values were calculated.  Smoothed offsets were calculated in station
groups and applied for each cast using bottle conductivities deeper than
1500 db.  Some offsets were manually re-adjusted to account for
discontinuous shifts in the conductivity transducer response or bottle
salinities, or to maintain deep theta-salinity consistency from cast to
cast.  Figure 1.7.2.1 summarizes the final applied conductivity offsets by
station number.


Figure 1.7.2.1:  CTD #10 conductivity offsets by station number.


During the year following the cruise, it was determined that CTD #10 had a
bad digitizer card for its conductivity sensor, which would probably have
had a very nonlinear effect on conductivity.  Because of the unusually
large spread in residual conductivity differences for stations 51-60, it is
likely that these casts occurred as the card began to malfunction.

The residual conductivity differences for stations 51-60 were fit to CTD
pressure in three groups: stations 51-56, 57-60 and 51-60.  Although a
second-order fit was statistically significant, a fourth-order fit to
pressure best pulled in the intermediate and deep differences without
compromising shallow differences.  Stations 51-56 were used to generate a
preliminary fourth-order fit; those coefficients were used to correct all
10 casts.  Stations 51-52 and 57-60 required additional adjustments to pull
the surface differences closer.  After applying the C(C,P) corrections to
stations 51-60, the residual conductivity differences were as tight as
those for the previous 50 stations.  A summary of the final pressure-
dependent coefficients used to correct conductivity appears at the end of
Appendix A.


CTD #4

Cast-by-cast comparisons showed only minor shifts in the conductivity
sensor offset and no slope changes, aside from a shift caused by removing a
black coating from the conductivity sensor housing during the 3-day run
between stations 109 and 110.  Conductivity differences were fit to CTD
conductivity for all CTD #4 casts in two station groups, 61-109 and 110 to
the end of the cruise, to determine the mean conductivity slope.  The mean
conductivity slope corrections are summarized in figure 1.7.2.2.


Figure 1.7.2.2:  CTD #4 conductivity slope corrections by station number.


After applying the conductivity slopes, residual CTD #4 conductivity offset
values were calculated.  Smoothed offsets were calculated in station groups
and applied for each cast using bottle conductivities deeper than 1500 db.
No adjustments to the smoothed offsets were required to maintain deep
theta-salinity consistency from cast to cast.  Figure 1.7.2.3 summarizes
the final applied conductivity offsets by station number.


Figure 1.7.2.3:  CTD #4 conductivity offsets by station number.


Summary of Residual Salinity Differences

A15/AR15 temperature and conductivity correction coefficients are tabulated
in Appendix A.

Figures 1.7.2.4, 1.7.2.5 and 1.7.2.6 summarize the residual differences
between bottle and CTD #10 and #4 salinities after applying the
conductivity corrections.


Figure 1.7.2.4:  Salinity residual differences vs pressure (after correction).
Figure 1.7.2.5:  Salinity residual differences vs station # (after correction).
Figure 1.7.2.6:  Deep salinity residual differences vs station # (after correction).


The CTD conductivity calibrations represent a best estimate of the
conductivity field throughout the water column.  3-sigma from the mean
residual in Figures 1.7.2.5 and 1.7.2.6, or +/-0.0044 PSU for all
salinities and +/-0.0012 PSU for deep salinities, represents the limit of
repeatability of the bottle salinities (Autosal, rosette, operators and
samplers).  This limit agrees with station overlays of deep T-S.  Within a
cast (a single salinometer run), the precision of bottle salinities appears
to exceed 0.001 PSU.  The precision of the CTD salinities appears to exceed
0.0005 PSU.


1.7.3.  CTD Dissolved Oxygen

There are a number of problems with the response characteristics of the
Sensormedics O2 sensor used in the NBIS Mark III CTD, the major ones being
a secondary thermal response and a sensitivity to profiling velocity.
Stopping the rosette for as little as half a minute, or slowing down for a
bottom approach, can cause shifts in the CTD O2 profile.  Winch stops
longer than 1 minute which may have affected CTD oxygen data are documented
in Appendix C.

Because of these problems, up-cast CTD rosette trip data cannot be
optimally calibrated to O2 check samples.  Instead, down-cast CTD O2 data
are derived by matching the up-cast rosette trips along isopycnal surfaces.
When down-casts were deemed to be unusable (see Appendix C), up-cast CTD O2
data were processed despite the signal drop-offs typically seen at bottle
stops.  The differences between CTD O2 data modeled from these derived
values and check samples are then minimized using a non-linear least-
squares fitting procedure.

A single oxygen sensor was used for the entire cruise, with both CTDs.
Figures 1.7.3.0 and 1.7.3.1 show the residual differences between the
corrected CTD O2 and the bottle O2 (ml/l) for each station.


Figure 1.7.3.0:  O2 residual differences vs station # (after correction).
Figure 1.7.3.1:  Deep O2 residual differences vs station # (after correction).


The standard deviations of 0.062 ml/l for all oxygens and 0.022 ml/l for
deep oxygens are only intended as metrics of the goodness of the fits.  ODF
makes no claims regarding the precision or accuracy of CTD dissolved O2
data.

The general form of the ODF O2 conversion equation follows Brown and
Morrison [Brow78] and Millard [Mill82], [Owen85].  ODF does not use a
digitized O2 sensor temperature to model the secondary thermal response but
instead models membrane and sensor temperatures by low-pass filtering the
PRT temperature.  In-situ pressure and temperature are filtered to match
the sensor response.  Time-constants for the pressure response Taup, and
two temperature responses TauTs and TauTf are fitting parameters.  The
sensor current, or Oc, gradient is approximated by low-pass filtering 1st-
order Oc differences.  This term attempts to correct for reduction of
species other than O2 at the cathode.  The time-constant for this filter,
Tauog, is a fitting parameter.  Oxygen partial-pressure is then calculated:

   Opp=[c1Oc+c2]*fsat(S,T,P)*e(c3Pl+c4Tf+c5Ts+c6dOc/dt)         (1.7.3.0)

where:
      Opp          = Dissolved O2 partial-pressure in atmospheres (atm);
      Oc           = Sensor current (uamps);
      fsat(S,T,P)  = O2 saturation partial-pressure at S,T,P (atm);
      S            = Salinity at O2 response-time (PSUs);
      T            = Temperature at O2 response-time (deg.C);
      P            = Pressure at O2 response-time (decibars);
      Pl           = Low-pass filtered pressure (decibars);
      Tf           = Fast low-pass filtered temperature (deg.C);
      Ts           = Slow low-pass filtered temperature (deg.C);
      dOc/dt       = Sensor current gradient (uamps/secs).


A15/AR15 CTD O2 correction coefficients (c1 through c6) are tabulated in
Appendix B.


1.8.  Bottle Sampling

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

   o  CFCs;
   o  Oxygen;
   o  Partial Pressure of CO2;
   o  Total CO2;
   o  pH;
   o  Alkalinity;
   o  Tritium;
   o  Nutrients;
   o  Salinity.

The correspondence between individual sample containers and the rosette
bottle 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 proper drawing order.

Normal sampling practice included opening the drain valve before opening
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 to their respective laboratories for analysis.  Oxygen,
nutrients and salinity analyses were performed on computer-assisted (PC)
analytical equipment networked to Sun SPARCstations for centralized data
analysis.  The analysts for each specific property were responsible for
insuring that their results were updated into the cruise database.


1.9.  Bottle Data Processing

The first stage of bottle data processing consisted of verifying and
validating individual samples, and checking the sample log (the sample
inventory) for consistency.  At this stage, bottle tripping problems were
usually resolved, sometimes resulting in changes to the pressure,
temperature and other CTD properties associated with the bottle.  Note that
the rosette bottle number was the primary identification for all samples
taken from the bottle, as well as for the CTD data associated with the
bottle.  All CTD trips were retained (whether confirmed or not), so
resolving bottle tripping problems simply consisted of assigning the right
rosette bottle number to the right CTD trip level.

Diagnostic comments from the sample log were entered into the computer as
part of the quality control procedure.  Every potential problem indicated
in these computer files was investigated.  The data were coded with the
results of the investigation.

The second stage of processing began once all the samples for a cast had
been accounted for.  All samples for bottles suspected of leaking were
checked to see if the properties were consistent with the profile for the
cast, with adjacent stations, and, where applicable, with the CTD data.
All comments from the analysts were examined and turned into appropriate
WHP water sample codes.  Oxygen flask numbers were verified, as each flask
is individually calibrated and significantly affects the calculated O2
concentration.

The third stage of processing continued throughout the cruise and until the
data set was considered "final".  Various property-property plots and
vertical sections were examined for both consistency within a cast and
consistency with adjacent stations.  In conjunction with this process the
analysts reviewed and sometimes revised their data as additional
calibration or diagnostic results became available.  Assignment of a WHP
water sample code to an anomalous sample value was typically achieved
through consensus between analysts and one of the chief scientists.

WHP water bottle quality flags were assigned with the following
additional interpretations:

   3  | An air leak large enough to produce an observable
      | effect on a sample is identified by a code of 3 on the
      | bottle and a code of 4 on the oxygen.  (Small air
      | leaks may have no observable effect, or may only
      | affect gas samples.)
   4  | Bottles tripped at other than the intended depth were
      | assigned a code of 4.  There may be no problems with
      | the associated water sample data.

WHP water sample quality flags were assigned using the following
criteria:

   1  | The sample for this measurement was drawn from a
      | bottle, but the results of the analysis were not (yet)
      | received.
   2  | Acceptable measurement.
   3  | Questionable measurement.  The data did not fit the
      | station profile or adjacent station comparisons (or
      | possibly CTD data comparisons).  No notes from the
      | analyst indicated a problem.  The data could be
      | acceptable, but are open to interpretation.
   4  | Bad measurement.  Does not fit the station profile,
      | adjacent stations or CTD data.  There were analytical
      | notes indicating a problem, but data values were
      | reported.  Sampling and analytical errors were also
      | coded as 4.
   5  | Not reported.  There should always be a reason
      | associated with a code of 5, usually that the sample
      | was lost, contaminated or rendered unusable.
   9  | The sample for this measurement was not drawn.

WHP water sample quality flags were assigned to the CTDSAL (CTD
salinity) parameter as follows:

   2  | Acceptable measurement.
   3  | Questionable measurement.  The data did not fit the
      | bottle data, or there was a CTD conductivity
      | calibration shift during the up-cast.
   4  | Bad measurement.  The CTD up-cast data were determined
      | to be unusable for calculating a salinity.
   8  | The CTD salinity was derived from the CTD down-cast,
      | matched on an isopycnal surface.

WHP water sample quality flags were assigned to the CTDOXY (CTD
O2) parameter as follows:
   2  | Acceptable measurement.
   4  | Bad measurement.  The CTD data were determined to be
      | unusable for calculating a dissolved oxygen
      | concentration.
   5  | Not reported.  The CTD data could not be reported.
   9  | Not sampled.  No operational CTD O2 sensor was present
      | on this cast.

Note that all CTDOXY values were derived from the pressure-series CTD data,
typically down-casts.  CTD data were matched to the up-cast bottle data
along isopycnal surfaces.  If the CTD salinity was footnoted as bad or
questionable, the CTD O2 was not reported.

Table 1.9.0 shows the number of samples drawn and the number of times each
WHP sample quality flag was assigned for each basic hydrographic property:


Table 1.9.0:  Frequency of WHP quality flag assignments.

                    Rosette Samples Stations 1-153                    
----------------------------------------------------------------------
             Reported                  WHP Quality Codes              
             levels       1        2     3      4      5     8       9
-----------||----------|----------------------------------------------
Bottle     ||  5319    |  0     5105    31     51      0     0     132
CTD Salt   ||  5319    |  0     5304     9      6      0     0       0
CTD Oxy    ||  5304    |  0     5172    34     98     15     0       0
Salinity   ||  5177    |  0     4982    77    118      4     0     138
Oxygen     ||  5164    |  0     5103     9     52      2     0     153
Silicate   ||  5176    |  0     5141     1     34      1     0     142
Nitrate    ||  5176    |  0     5054    88     34      1     0     142
Nitrite    ||  5174    |  0     5127     1     46      3     0     142
Phosphate  ||  5170    |  0     5004    17    149      7     0     142


Additionally, all WHP water bottle/sample quality code comments are
presented in Appendix D.


1.10.  Pressure and Temperatures

All pressures and temperatures for the bottle data tabulations on the
rosette casts were obtained by averaging CTD data for a brief interval at
the time the bottle was closed on the rosette, then correcting the data
based on CTD laboratory calibrations.

The temperatures are reported using the International Temperature Scale of 1990.


1.11.  Salinity Analysis

Salinity samples were drawn into 200 ml Kimax high alumina borosilicate
bottles after 3 rinses, and were sealed with custom-made plastic insert
thimbles and Nalgene screw caps.  This assembly provides very low container
dissolution and sample evaporation.  As loose inserts were found, they were
replaced to insure a continued airtight seal.  Salinity was determined
after a box of samples had equilibrated to laboratory temperature, usually
within 8-12 hours of collection.  During the first week of the expedition,
the salinity samples may not have been analyzed for 24-41 hours after
collection.  The draw time, equilibration time, and per-sample analysis
time were logged.

Two Guildline Autosal Model 8400A salinometers (48-266 and 48-263) were
used to measure salinities.  These were located in a temperature-controlled
laboratory.  The salinometers were modified by ODF and contained interfaces
for computer-aided measurement.  A computer (PC) prompted the analyst for
control functions (changing sample, flushing) while it made continuous
measurements and logged results.  The salinometer cell was flushed until
successive readings met software criteria for consistency, then two
successive measurements were made and averaged for a final result.

The salinometer was standardized for each cast with IAPSO Standard Seawater
(SSW) Batch P-122, using at least one fresh vial per cast.  The estimated
accuracy of bottle salinities run at sea is usually better than 0.002 PSU
relative to the particular Standard Seawater batch used.  PSS-78 salinity
[UNES81] was then calculated for each sample from the measured conductivity
ratios, and the results were merged with the cruise database.

Two salinometers were set up at different bath temperatures.  Autosal
#48-266, set at 24 deg.C, was used on stations 1-26, 33-76, and 109.
Autosal #48-263, set at 21 deg.C, was used for stations 28-32, after which
a problem with the suppression switch was noted and repaired.  It was used
again from stations 76-153, except 109, where the lab temperature warranted
using the warmer bath in 48-266.

On Station 26, all 36 bottles were tripped at ~3795db.  Salinity samples
were analyzed for each of the 36 bottles.  Bottle 10 leaked and two other
salinity values were not acceptable; they were not used in this comparison.
Table 1.11.0 shows the standard deviation of the remaining samples.


Table 1.11.0:  Station 26 Salinity

                   Salinity (PSU) Mean      | 34.8938
                   -------------------------|--------
                   Standard Deviation (PSU) |  0.0009
                   -------------------------|--------
                   Number of Samples Used   | 33     


5177 salinity measurements were made and 410 vials of standard water were
used.  The temperature stability of the laboratory where the salinometers
were located was fair, with the lab temperature generally within one degree
of the Autosal bath temperature.


1.12.  Oxygen Analysis

Samples were collected for dissolved oxygen analyses soon after the rosette
sampler was brought on board and after CFC was drawn.  Nominal 125 ml
volume-calibrated iodine flasks were rinsed twice with minimal agitation,
then filled via a drawing tube, and allowed to overflow for at least 3
flask volumes.  The sample temperature was measured with a small platinum
resistance thermometer embedded in the drawing tube.  Reagents were added
to fix the oxygen before stoppering.  The flasks were shaken twice to
assure thorough dispersion of the MnO(OH)2 precipitate, once immediately
after drawing, and then again after 20 minutes.  The samples were analyzed
within 4-36 hours of collection.

Dissolved oxygen analyses were performed with an ODF-designed automated
oxygen titrator using photometric end-point detection based on the
absorption of 365 nm wavelength ultra-violet light.  Thiosulfate was
dispensed by a Dosimat 665 buret driver fitted with a 1.0 ml buret.  ODF
uses 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 (approximately
0.012N) and thiosulfate solution (50 gm/l).  Standard solutions prepared
from pre-weighed potassium iodate crystals were run at the beginning of
each session of analyses, which typically included from 1 to 3 stations.
Several standards were made up during the cruise and compared to assure
that the results were reproducible, and to preclude the possibility of a
weighing error.  Reagent/distilled water blanks were determined to account
for oxidizing or reducing materials in the reagents.  The auto-titrator
generally performed very well.

The samples were titrated and the data logged by the PC control software.
The data were then used to update the cruise database on the Sun
SPARCstations.

Thiosulfate normalities were calculated from each standardization and
corrected to 20 deg.C.  The 20 deg.C normalities and the blanks were
plotted versus time and were reviewed for possible problems.  New
thiosulfate normalities were recalculated after the blanks had been
smoothed.  These normalities were then smoothed, and the oxygen data were
recalculated.

Oxygens were converted from milliliters per liter to micromoles per
kilogram using the in-situ temperature.  Ideally, for whole-bottle
titrations, the conversion temperature should be the temperature of the
water issuing from the bottle spigot.  The sample temperatures were
measured at the time the samples were drawn from the bottle, but were not
used in the conversion from milliliters per liter to micromoles per
kilogram because the software was not available.  Aberrant drawing
temperatures provided an additional flag indicating that a bottle may not
have tripped properly.

Oxygen flasks were calibrated gravimetrically with degassed deionized water
(DIW) to determine flask volumes at ODF's chemistry laboratory.  This is
done once before using flasks for the first time and periodically
thereafter when a suspect bottle volume is detected.  All volumetric
glassware used in preparing standards is calibrated, as is the 10 ml
Dosimat buret used to dispense standard iodate solution.

Iodate standards are pre-weighed in ODF's chemistry laboratory to a nominal
weight of 0.44xx grams. The exact normality is calculated at sea when the
volumetric flask volume and dilution temperature are known.  Potassium
iodate (KIO3) is obtained from Johnson Matthey Chemical Co.  and is
reported by the supplier to be > 99.4% pure.  All other reagents are
"reagent grade".

On Station 26, all 36 bottles were tripped at ~3795db.  Oxygen samples were
analyzed for each of the 36 bottles.  Bottle 10 leaked and its oxygen value
was not used in this comparison.  Table 1.12.0 shows the standard deviation
of the remaining samples.


Table 1.12.0:  Station 26 Oxygen

                   Oxygen (uM/kg) Mean        | 244.5 
                   ---------------------------|-------
                   Standard Deviation (uM/kg) |   0.13
                   ---------------------------|-------
                   Number of Samples Used     |  35   


5436 oxygen measurements were made.  No major problems were encountered
with the analyses.


1.13.  Nutrient Analysis

Nutrient samples were drawn into 45 ml high density polypropylene, narrow
mouth, screw-capped centrifuge tubes which were rinsed three times before
filling.  Standardizations were performed at the beginning and end of each
group of analyses (one cast, usually 36 samples) with a set of an
intermediate concentration standard prepared for each run from secondary
standards.  These secondary standards were in turn prepared aboard ship by
dilution from dry, pre-weighed primary standards.  Sets of 5-6 different
concentrations of shipboard standards were analyzed periodically to
determine the deviation from linearity as a function of concentration for
each nutrient.

Nutrient analyses (phosphate, silicate, nitrate and nitrite) were performed
on an ODF-modified 4-channel Technicon AutoAnalyzer II, generally within
one hour of the cast.  Occasionally some samples were refrigerated at 2 to
6 deg.C for a maximum of 4 hours.  The methods used are described by Gordon
et al. [Gord92], [Hage72], [Atla71].  The colorimeter output from each of
the four channels were digitized and logged automatically by computer (PC),
then split into absorbence peaks.  All the runs were manually verified.

Silicate is analyzed using the technique of Armstrong et al. [Arms67].
Ammonium molybdate is added to a seawater sample to produce silicomolybdic
acid which is then reduced to silicomolybdous acid (a blue compound)
following the addition of stannous chloride.  Tartaric acid is also added
to impede PO4 contamination.  The sample is passed through a 15 mm flowcell
and the absorbence measured at 820nm.  ODF's methodology is known to be
non-linear at high silicate concentrations (>120 uM); a correction for this
non-linearity is applied in ODF's software.

Modifications of the Armstrong et al. [Arms67] techniques for nitrate and
nitrite analysis are also used.  The seawater sample for nitrate analysis
is passed through a cadmium column where the nitrate is reduced to nitrite.

Sulfanilamide is introduced, reacting with the nitrite, then
N-(1-naphthyl)ethylenediamine dihydrochloride which couples to form a red
azo dye.  The reaction product is then passed through a 15 mm flowcell and
the absorbence measured at 540 nm.  The same technique is employed for
nitrite analysis, except the cadmium column is not present, and a 50 mm
flowcell is used.

Phosphate is analyzed using a modification of the Bernhardt and Wilhelms
[Bern67] technique.  Ammonium molybdate is 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 is heated to ~55 deg.C to enhance color development, then passed
through a 50 mm flowcell and the absorbence measured at 820 nm.

Nutrients reported in micromoles per kilogram were converted from
micromoles per liter by dividing by sample density calculated at 1 atm
pressure, in-situ salinity, and an assumed laboratory temperature of 25
deg.C.

Na2SiF6, the silicate primary standard, is obtained from Fluka Chemical
Company and Fisher Scientific and is reported by the suppliers to be >98%
pure.  Primary standards for nitrate (KNO3), nitrite (NaNO2), and phosphate
(KH2PO4) are obtained from Johnson Matthey Chemical Co. and the supplier
reports purities of 99.999%, 97%, and 99.999%, respectively.

5679 nutrient analyses were performed.  Occasional electromagnetic
interference was observed in the nitrite channel.  This interference was
intermittent and of varying intensity; it occurred at 30 minute cycles,
sometimes lasting for days and sometimes for a few hours. The source of
this interference was identified during a subsequent cruise as solenoids in
the ship's water-cooled air-conditioning system.  The nitrite data were
carefully reviewed, and corrected where appropriate.  If a correction was
required, but could not be applied, the data were coded as bad.



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 Report 215, 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).

Cart80.
     Carter, D. J. T., "Computerised Version of Echo-sounding Correction
     Tables (Third Edition)," Marine Information and Advisory Service,
     Institute of Oceanographic Sciences, Wormley, Godalming, Surrey. GU8
     5UB. U.K. (1980).

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).

Hage72.
     Hager, S. W., Atlas, E. L., Gordon, L. D., Mantyla, A. W., and Park,
     P. K., "A comparison at sea of manual and autoanalyzer analyses of
     phosphate, nitrate, and silicate," Limnology and Oceanography, 17, pp.
     931-937 (1972).

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).




                                APPENDIX A


  WOCE94-A15/AR15:  CTD Temperature and Conductivity Corrections Summary
@ Note: Stations 51-60 Pressure-Dependent Conductivity Coefficients at end
                               of Appendix A

             PRT           ITS-90 Temperature Coefficients        Conductivity Coefficients
 Sta/     Response             corT = t2*T2 + t1*T + t0                corC = c1*C + c0
 Cast    Time (secs)        t2             t1            t0            c1            c0

001/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -4.97029e-04      0.00008
002/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -5.15023e-04      0.00008
003/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -5.33018e-04      0.00008
004/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -5.51012e-04      0.00349
005/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -5.69006e-04      0.00349
006/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -5.87000e-04      0.00599
007/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -6.04994e-04      0.00599
008/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -6.22989e-04      0.00599
009/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -6.40983e-04      0.00599
010/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -6.58977e-04      0.00599

011/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -6.76971e-04      0.00599
012/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -6.94966e-04      0.00599
013/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -7.12960e-04      0.00599
014/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -7.30954e-04      0.00599
015/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -7.48948e-04      0.00599
016/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -7.66943e-04      0.00599
017/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -7.84937e-04      0.00599
018/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -8.02931e-04      0.00599
019/02       .22        1.28280e-05   -6.11910e-04     -1.65840   -8.20925e-04      0.00349
020/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -8.38919e-04      0.00439

021/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -8.56914e-04      0.00439
022/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -8.74908e-04      0.00439
026/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -9.46885e-04     -0.00049
028/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -9.82873e-04      0.00219
029/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.00087e-03      0.00353
030/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.01886e-03      0.00487
031/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.03686e-03      0.00642
032/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.05485e-03      0.00694
033/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.07284e-03      0.00727
034/02       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.09084e-03      0.00760

035/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.10883e-03      0.00793
036/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.12683e-03      0.00826
037/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.14482e-03      0.00858
038/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.16282e-03      0.00841
039/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.18081e-03      0.00874
040/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.19880e-03      0.00907
041/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.21680e-03      0.00940
042/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.23479e-03      0.00972
043/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.25279e-03      0.01056
044/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.27078e-03      0.01056

045/02       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.28878e-03      0.01056
046/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.30677e-03      0.01056
047/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.32476e-03      0.01056
048/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.34276e-03      0.00924
049/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.36075e-03      0.00924
050/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.37875e-03      0.00924
051/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.23517e-03     -0.01130@
052/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.25316e-03     -0.01130@
053/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.27116e-03     -0.01310@
054/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.28915e-03     -0.01310@

055/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.30715e-03     -0.01210@
056/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -1.32514e-03     -0.01210@
057/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -2.35676e-03     -0.00984@
058/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -2.37475e-03     -0.00984@
059/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -2.39274e-03     -0.00984@
060/01       .22        1.28280e-05   -6.11910e-04     -1.65840   -2.41074e-03     -0.00984@
061/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01599

             PRT           ITS-90 Temperature Coefficients        Conductivity Coefficients
 Sta/     Response             corT = t2*T2 + t1*T + t0                corC = c1*C + c0
 Cast    Time (secs)        t2             t1            t0            c1            c0

062/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01582
063/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01565
064/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01548

065/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01531
066/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01513
067/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01496
068/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01479
069/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01462
070/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01445
071/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01427
072/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01410
073/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01409
074/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01406

075/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01404
076/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01401
077/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01399
078/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01396
079/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01394
080/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01392
081/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01389
082/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01387
083/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01384
084/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01382

085/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01379
086/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01377
087/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01375
088/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01372
089/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01370
090/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01367
091/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01365
092/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01362
093/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01360
094/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01357

095/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01355
096/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01353
097/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01350
098/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01348
099/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01345
100/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01343
101/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01340
102/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01338
103/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01335
104/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01333

105/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01331
106/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01328
107/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01326
108/02       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01323
109/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -5.91961e-04      0.01321
110/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01692
111/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01683
112/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01675
113/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01666
114/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01657

115/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01648
116/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01640
117/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01631
118/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01622
119/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01613
120/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01604
121/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01596
122/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01587
123/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01578
124/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01569

             PRT           ITS-90 Temperature Coefficients        Conductivity Coefficients
 Sta/     Response             corT = t2*T2 + t1*T + t0                corC = c1*C + c0
 Cast    Time (secs)        t2             t1            t0            c1            c0

125/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01561
126/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01552
127/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01543
128/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
129/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
130/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
131/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
132/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
133/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
134/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542

135/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
136/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
137/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
138/05       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
139/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
140/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
141/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
142/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
143/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
144/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542

145/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
146/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
147/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
148/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
149/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
150/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
151/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
152/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542
153/01       .38        1.50630e-05   -6.85570e-04     -1.50620   -9.78857e-04      0.01542



         Additional Conductivity Correction Coefficients as a Function of Pressure
 Sta/                   corC(P) = p4*P4 + p3*P3 + p2*P2 + p1*P + p0
 Cast          p4              p3              p2              p1           p0

051/01    -3.10855e-17    7.38945e-13     -5.02714e-09     6.90986e-06    0.01187
052/01    -3.10855e-17    7.38945e-13     -5.02714e-09     6.90986e-06    0.01187
053/01    -3.10855e-17    7.38945e-13     -5.02714e-09     5.96600e-06    0.01526
054/01    -3.10855e-17    7.38945e-13     -5.02714e-09     5.96600e-06    0.01526
055/01    -3.10855e-17    7.38945e-13     -5.02714e-09     5.96600e-06    0.01526
056/01    -3.10855e-17    7.38945e-13     -5.02714e-09     5.96600e-06    0.01526
057/01    -3.10855e-17    9.30000e-13     -6.23047e-09     7.79402e-06    0.01505
058/01    -3.10855e-17    9.30000e-13     -6.23047e-09     7.79402e-06    0.01505
059/01    -3.10855e-17    9.30000e-13     -6.23047e-09     7.79402e-06    0.01505
060/01    -3.10855e-17    9.30000e-13     -6.23047e-09     7.79402e-06    0.01505


                                APPENDIX B


           Summary of WOCE94-A15/AR15 CTD Oxygen Time Constants

                     Temperature        | Press. | O2 Grad.
              Fast(tauTF) | Slow(tauTS) | (tauP) | (tauOG) 
              ------------|-------------|--------|---------
                 10.0     |    400.0    |  16.0  |   16.0  


     WOCE94-A15/AR15 CTD Oxygen:  O2 Conversion Equation Coefficients
                        (refer to Equation 1.7.3.0)

 Sta/       Slope         Offset        Pcoeff        TFcoeff        TScoeff        OGcoeff
 Cast       (c1)           (c2)          (c3)           (c4)           (c5)           (c6)

001/01   4.59095e-05    3.60826e-01   6.25679e-04    2.17715e-02    7.40393e-03   -6.78650e-06
002/01   1.16614e-03    3.94626e-02   6.00741e-05    8.10269e-03   -3.58419e-02    2.21524e-05
003/01   9.67980e-04    8.36917e-02   1.18582e-04    7.71959e-03   -2.95694e-02    3.10737e-06
004/01   9.88347e-04    6.06430e-02   1.30142e-04    3.91128e-03   -2.62398e-02    9.14454e-06
005/01   9.98956e-04    5.29221e-02   1.29491e-04    9.16944e-03   -2.86203e-02    1.01042e-06
006/01   9.69184e-04    6.80387e-02   1.30437e-04    9.34888e-03   -2.84119e-02   -5.11152e-06
007/01   9.97362e-04    5.93905e-02   1.27691e-04    8.84886e-03   -2.86656e-02   -3.06151e-06
008/01   9.53902e-04    1.17116e-01   1.12311e-04    1.27233e-02   -3.48450e-02    2.30537e-06
009/01   9.50103e-04    1.00299e-01   1.21248e-04    1.09960e-02   -3.13262e-02    1.90955e-06
010/01   1.28764e-03    2.17274e-02   4.70399e-05    1.29565e-03   -3.53434e-02    1.16594e-05

011/01   1.05996e-03    2.26051e-02   1.38186e-04    2.34351e-03   -2.90865e-02    2.89622e-06
012/01   1.05035e-03    1.41607e-02   1.43351e-04    1.34581e-03   -2.41715e-02    2.59942e-07
013/01   1.09711e-03    1.17741e-02   1.37166e-04   -4.02690e-03   -2.31238e-02    3.66768e-06
014/01   1.05589e-03    3.76563e-02   1.31991e-04    4.03786e-03   -2.81971e-02    1.86032e-06
015/01   1.08843e-03    1.39755e-02   1.38037e-04   -3.46832e-04   -2.61174e-02    9.08910e-07
016/01   1.09453e-03   -1.11974e-02   1.53945e-04   -1.75286e-02   -2.06387e-03   -3.95231e-05
017/01   1.04971e-03    3.27460e-02   1.34142e-04    3.84706e-03   -2.58747e-02    4.14440e-06
018/01   1.07764e-03    2.01893e-02   1.37114e-04   -2.06611e-04   -2.50394e-02    2.00109e-06
019/02   1.06108e-03    1.95950e-02   1.40372e-04    4.04415e-03   -2.92756e-02    1.74596e-08
020/01   1.12916e-03   -1.25837e-02   1.48747e-04   -2.80048e-02    3.37203e-03    1.67353e-05

021/01   1.02527e-03    4.85565e-02   1.30677e-04    9.13174e-03   -2.94696e-02   -1.10168e-06
022/01   1.03961e-03    8.19471e-02   1.18439e-04   -3.60219e-04   -3.03050e-02   -3.57135e-06
026/01   1.14973e-03   -3.46040e-02   1.54828e-04   -3.15870e-04   -3.16696e-02    5.00345e-07
028/01   1.05500e-03    4.25097e-02   1.29959e-04    7.47930e-03   -3.23297e-02    5.72342e-07
029/01   1.13233e-03   -1.23078e-02   1.48142e-04   -2.01049e-02    4.07455e-04   -6.13678e-06
030/01   1.09274e-03    3.20498e-02   1.28958e-04    1.26377e-02   -3.75734e-02    1.28322e-06
031/01   1.04888e-03    5.91751e-02   1.21641e-04    1.94716e-02   -4.02356e-02   -2.29351e-06
032/01   1.06356e-03    4.01882e-02   1.29506e-04    9.31173e-03   -3.18980e-02    4.76796e-07
033/01   9.96844e-04    8.81736e-02   1.16877e-04    1.72657e-02   -3.68904e-02   -2.81894e-06
034/02   1.12790e-03   -1.99599e-02   1.53900e-04   -1.77995e-02   -1.85747e-03    8.34129e-06

035/01   1.09737e-03    1.49083e-03   1.43153e-04    3.06046e-03   -2.72070e-02    2.10609e-06
036/01   1.06056e-03    3.18971e-02   1.32933e-04    9.66432e-03   -3.08446e-02    5.45092e-06
037/01   1.03457e-03    6.11418e-02   1.23743e-04    8.86598e-03   -3.01142e-02   -6.12908e-06
038/01   1.01191e-03    9.69167e-02   1.10708e-04    9.78107e-03   -3.31072e-02   -3.46440e-06
039/01   1.11487e-03    7.91169e-03   1.35577e-04    5.88182e-03   -2.88365e-02    4.53306e-06
040/01   1.04179e-03    5.38769e-02   1.25007e-04    1.46089e-02   -3.40250e-02    5.09130e-06
041/01   1.07021e-03    3.84660e-02   1.29138e-04    5.45854e-03   -2.80034e-02    4.96443e-06
042/01   1.07780e-03    4.50507e-02   1.26058e-04    1.49393e-03   -2.83568e-02    3.30911e-06
043/01   1.05969e-03    4.26891e-02   1.31762e-04    1.76386e-03   -2.65888e-02   -7.05317e-06
044/01   1.11362e-03   -4.24181e-04   1.43260e-04   -2.27579e-03   -2.34764e-02    6.15926e-06

045/02   1.07643e-03    2.56972e-02   1.34684e-04    6.39435e-03   -2.82407e-02    2.66129e-06
046/01   1.10992e-03    1.96432e-02   1.33187e-04    2.24825e-03   -2.80060e-02   -3.30325e-06
047/01   1.03875e-03    5.36375e-02   1.28035e-04    1.43846e-02   -3.43580e-02   -8.30771e-06
048/01   1.07444e-03    3.52610e-02   1.32459e-04    2.60966e-03   -2.70405e-02    1.58093e-06
049/01   1.08475e-03    1.36808e-02   1.40855e-04   -2.77610e-04   -2.33874e-02    1.07245e-06
050/01   1.07925e-03    1.87165e-02   1.39231e-04    1.91986e-03   -2.39267e-02    3.97049e-06
051/01   1.11181e-03   -1.33249e-02   1.58377e-04   -2.11564e-02    2.23470e-03   -3.08721e-06
052/01   1.11487e-03   -5.78080e-03   1.52333e-04   -2.03764e-02   -3.37521e-04   -1.74867e-05
053/01   1.10827e-03   -1.32925e-02   1.58556e-04   -1.66338e-02   -1.46331e-03    2.98367e-06

 Sta/       Slope         Offset        Pcoeff        TFcoeff        TScoeff        OGcoeff
 Cast       (c1)           (c2)          (c3)           (c4)           (c5)           (c6)

054/01   1.07338e-03    2.68165e-03   1.54824e-04   -1.09948e-02   -3.69784e-03   -2.74537e-05

055/01   1.14476e-03   -1.84377e-02   1.48365e-04   -2.82199e-02    5.47269e-03   -6.54936e-05
056/01   1.14507e-03   -3.39756e-02   1.61353e-04   -3.04417e-02    9.24186e-03   -4.83605e-05
057/01   1.16036e-03   -5.13818e-02   1.63458e-04   -2.29068e-02    5.54124e-03   -6.19089e-05
058/01   1.09415e-03   -1.10760e-02   1.58233e-04   -1.65737e-02    3.04584e-05   -5.27419e-05
059/01   1.11154e-03   -1.18706e-03   1.46387e-04   -1.63715e-02   -2.77141e-03   -8.43386e-05
060/01   1.15232e-03   -2.34298e-02   1.53683e-04   -2.94988e-02    6.76001e-03   -3.94896e-05
061/01   1.05372e-03    5.70236e-02   1.24328e-04    4.79415e-03   -2.83709e-02    3.97915e-06
062/01   1.06131e-03    6.22818e-02   1.20965e-04    6.11596e-03   -3.10133e-02    2.01438e-07
063/01   1.09000e-03    3.68130e-02   1.29874e-04    1.59031e-03   -2.87365e-02    2.98791e-06
064/01   1.09317e-03    3.51016e-02   1.29437e-04   -9.52549e-04   -2.64244e-02    1.57676e-06

065/01   1.05618e-03    7.46556e-02   1.15404e-04    1.00671e-02   -3.56157e-02    2.50681e-06
066/01   1.05420e-03    6.86719e-02   1.19297e-04    8.37762e-03   -3.29228e-02   -2.38122e-06
067/01   1.05318e-03    7.13729e-02   1.18741e-04    8.59161e-03   -3.43973e-02   -7.91617e-07
068/01   1.08102e-03    5.61838e-02   1.21306e-04    2.04266e-03   -2.97180e-02    7.55149e-07
069/01   1.06632e-03    6.20275e-02   1.20254e-04    8.73764e-03   -3.43457e-02   -8.43408e-08
070/01   1.08560e-03    4.40775e-02   1.26513e-04   -9.77166e-04   -2.65097e-02   -7.43278e-07
071/01   1.10404e-03    2.89917e-02   1.30377e-04   -1.68696e-03   -2.61437e-02   -1.83696e-06
072/01   1.06763e-03    4.40619e-02   1.29177e-04    1.64300e-03   -2.61638e-02    2.04658e-05
073/01   1.05115e-03    5.68925e-02   1.24624e-04    6.12466e-03   -2.91017e-02   -3.54420e-06
074/01   1.09073e-03    3.09143e-02   1.32275e-04   -3.56330e-03   -2.37583e-02    1.09245e-05

075/01   1.10899e-03    1.77374e-02   1.35381e-04   -9.34014e-04   -2.58311e-02    3.92244e-06
076/01   1.08037e-03    3.85523e-02   1.29601e-04    1.42202e-03   -2.64371e-02    5.31299e-04
077/01   1.05763e-03    6.80491e-02   1.18357e-04   -9.87012e-04   -2.56453e-02    3.33924e-05
078/01   1.08278e-03    5.57819e-02   1.21131e-04   -4.32584e-04   -2.82436e-02    7.82324e-06
079/01   1.05570e-03    7.37495e-02   1.15240e-04    2.27661e-03   -2.80800e-02    1.92257e-05
080/01   1.02422e-03    8.89387e-02   1.14873e-04    2.41221e-03   -2.83701e-02    1.59110e-05
081/01   1.07655e-03    6.30161e-02   1.18500e-04   -1.03343e-04   -2.78053e-02    5.49886e-06
082/01   1.12751e-03    2.32548e-02   1.30370e-04   -4.51892e-04   -2.81818e-02    7.82150e-06
083/01   1.04718e-03    6.69058e-02   1.19491e-04    6.91159e-03   -2.91490e-02    2.24125e-06
084/01   1.06002e-03    5.98376e-02   1.21692e-04    5.42146e-03   -2.93440e-02    1.92692e-06

085/01   1.10696e-03    2.71083e-02   1.31806e-04   -3.92033e-03   -2.45216e-02   -9.75694e-06
086/01   1.07758e-03    4.89999e-02   1.24647e-04    4.76916e-03   -2.95702e-02    4.30626e-06
087/01   1.06216e-03    4.88879e-02   1.25714e-04    7.45085e-03   -2.87616e-02    3.36018e-06
088/01   1.04506e-03    7.15894e-02   1.18183e-04    6.43099e-03   -2.93148e-02    2.35137e-06
089/01   1.10095e-03    4.71641e-02   1.22886e-04    2.17843e-04   -2.78862e-02    2.85757e-06
090/01   1.09923e-03    3.77127e-02   1.27111e-04   -1.84633e-03   -2.64841e-02    4.19138e-03
091/01   1.08078e-03    4.94196e-02   1.23635e-04    6.94603e-04   -2.69578e-02    1.46311e-04
092/01   1.09727e-03    4.30209e-02   1.24873e-04   -5.35402e-04   -2.77457e-02    1.36511e-04
093/01   1.06965e-03    6.00754e-02   1.21721e-04   -1.17561e-03   -2.56469e-02    1.76938e-03
094/01   1.08371e-03    4.82665e-02   1.23741e-04   -7.80422e-04   -2.57896e-02    3.99649e-04

095/01   1.09742e-03    3.79705e-02   1.27580e-04   -2.01248e-03   -2.59401e-02    3.13136e-05
096/01   1.07663e-03    4.81784e-02   1.26007e-04   -4.38124e-04   -2.58507e-02    1.41795e-04
097/01   1.08507e-03    4.81088e-02   1.24265e-04   -2.87900e-04   -2.65712e-02    2.21413e-05
098/01   1.08331e-03    4.82321e-02   1.24144e-04    1.93523e-03   -2.80369e-02    2.06987e-05
099/01   1.07926e-03    4.61789e-02   1.25740e-04    1.17761e-03   -2.70995e-02    1.83416e-06
100/01   1.09768e-03    4.18255e-02   1.25278e-04   -3.10529e-03   -2.52685e-02    9.18407e-04
101/01   1.11383e-03    2.88045e-02   1.29197e-04   -2.00909e-03   -2.60982e-02    7.64175e-04
102/01   1.09127e-03    3.80096e-02   1.28086e-04    1.51552e-03   -2.79049e-02    1.28637e-03
103/01   1.09088e-03    3.82587e-02   1.28649e-04   -6.86250e-04   -2.68913e-02    8.54903e-05
104/01   1.11921e-03    2.69493e-02   1.30123e-04   -4.28345e-03   -2.66180e-02    7.30346e-05

105/01   1.10436e-03    3.44033e-02   1.28632e-04   -6.82857e-04   -2.74532e-02    1.16234e-03
106/01   1.11715e-03    2.88651e-02   1.28173e-04   -2.10176e-03   -2.67813e-02    4.62382e-05
107/01   1.11812e-03    2.87677e-02   1.30109e-04   -3.94333e-03   -2.72308e-02    2.67491e-05
108/02   1.13999e-03    1.83626e-02   1.31858e-04   -1.08084e-02   -2.31847e-02   -6.60242e-06
109/01   1.13271e-03    1.83955e-02   1.32311e-04   -5.34936e-03   -2.63263e-02    4.58368e-06
110/01   1.09096e-03    3.17133e-02   1.31537e-04   -1.33766e-03   -2.53043e-02   -1.00018e-06
111/01   1.09673e-03    5.09006e-02   1.20640e-04   -1.06873e-03   -2.68070e-02   -2.39894e-06
112/01   1.09392e-03    5.07205e-02   1.21433e-04   -1.55660e-03   -2.62221e-02    6.48023e-06
113/01   1.10911e-03    3.54279e-02   1.28061e-04   -3.33455e-03   -2.70678e-02    2.38596e-06
114/01   1.10378e-03    3.55259e-02   1.27060e-04    6.13400e-04   -2.82060e-02    5.39977e-06

115/01   1.08920e-03    3.09038e-02   1.31763e-04    1.65359e-03   -2.65361e-02    4.47684e-06
116/01   1.12846e-03    1.62764e-02   1.33677e-04   -4.86864e-03   -2.55693e-02    7.62140e-06

 Sta/       Slope         Offset        Pcoeff        TFcoeff        TScoeff        OGcoeff
 Cast       (c1)           (c2)          (c3)           (c4)           (c5)           (c6)

117/01   1.11166e-03    3.11957e-02   1.28159e-04    4.50267e-05   -2.81224e-02    5.66600e-06
118/01   1.09315e-03    4.92026e-02   1.21487e-04    2.46751e-03   -2.85443e-02    2.39912e-06
119/01   1.09471e-03    3.14643e-02   1.30224e-04    2.70130e-03   -2.77755e-02   -6.88348e-07
120/01   1.11495e-03    3.15251e-02   1.27256e-04   -6.84710e-04   -2.74868e-02    2.62179e-06
121/01   1.10978e-03    2.35763e-02   1.32309e-04   -6.69006e-04   -2.65513e-02    2.44702e-05
122/01   1.10913e-03    2.51215e-02   1.30894e-04    3.16522e-03   -2.86255e-02    7.56748e-06
123/01   1.11399e-03    2.00697e-02   1.33895e-04   -9.81008e-04   -2.75877e-02    7.64693e-07
124/01   1.10716e-03    2.44435e-02   1.33112e-04   -1.86043e-03   -2.58367e-02   -3.39475e-06

125/01   1.09659e-03    3.27396e-02   1.29503e-04    2.41836e-03   -2.76710e-02    2.64467e-06
126/01   1.09791e-03    3.15869e-02   1.29632e-04    4.17514e-03   -2.87746e-02    3.54944e-06
127/01   1.12317e-03    1.14957e-02   1.37843e-04   -2.62984e-03   -2.56908e-02    3.53659e-06
128/01   1.11934e-03    2.67781e-02   1.29823e-04   -1.56059e-03   -2.65359e-02    1.97109e-05
129/01   1.08936e-03    3.46412e-02   1.29726e-04    3.52149e-03   -2.80068e-02    6.92432e-06
130/01   1.12052e-03    2.36521e-02   1.31346e-04   -3.70057e-03   -2.57384e-02    4.18044e-06
131/01   1.11834e-03    3.39767e-02   1.25917e-04   -3.53159e-03   -2.60252e-02   -8.13615e-07
132/01   1.10977e-03    3.17122e-02   1.28097e-04   -1.61218e-05   -2.71542e-02    6.71183e-06
133/01   1.09440e-03    3.28372e-02   1.30887e-04   -3.32523e-04   -2.65327e-02    3.61189e-06
134/01   1.10961e-03    2.84612e-02   1.30303e-04   -2.07621e-03   -2.56633e-02    5.51528e-06

135/01   1.09564e-03    4.21965e-02   1.25936e-04    2.85602e-04   -2.75226e-02   -3.26509e-07
136/01   1.11286e-03    2.77815e-02   1.30144e-04   -2.81025e-03   -2.53492e-02    3.93663e-05
137/01   1.10158e-03    3.13317e-02   1.30002e-04   -7.34345e-04   -2.67262e-02   -3.78371e-06
138/05   1.12636e-03    2.28400e-02   1.31143e-04   -4.49320e-03   -2.49400e-02    2.80854e-06
139/01   1.08936e-03    3.71673e-02   1.29648e-04    1.64556e-04   -2.59489e-02    1.99407e-06
140/01   1.08274e-03    5.21430e-02   1.22431e-04    1.03286e-03   -2.73421e-02    3.62363e-05
141/01   1.08123e-03    3.88109e-02   1.29792e-04    1.63002e-03   -2.64069e-02    8.27915e-07
142/01   1.13083e-03    1.48888e-02   1.34139e-04   -4.87803e-03   -2.53635e-02   -4.39419e-05
143/01   1.11768e-03    1.76151e-02   1.35635e-04   -5.25088e-03   -2.33861e-02    1.94892e-03
144/01   1.10256e-03    2.39162e-02   1.34660e-04   -4.49300e-03   -2.40884e-02    3.13501e-04

145/01   1.06973e-03    4.54529e-02   1.28876e-04    1.29720e-03   -2.58185e-02    4.75400e-06
146/01   1.09769e-03    4.26509e-02   1.25667e-04   -1.73984e-03   -2.59863e-02    6.92400e-06
147/01   1.12565e-03    1.82108e-02   1.33804e-04   -6.47537e-03   -2.32238e-02    1.75608e-03
148/01   1.08352e-03    4.59697e-02   1.26350e-04   -2.09639e-03   -2.55767e-02    3.46164e-05
149/01   1.06634e-03    4.27532e-02   1.31359e-04    3.59482e-03   -2.72124e-02    3.20013e-06
150/01   1.06606e-03    5.04342e-02   1.29152e-04   -1.27753e-03   -2.55891e-02    3.60381e-06
151/01   1.08694e-03    4.01518e-02   1.29203e-04   -2.01622e-03   -2.57089e-02    4.30555e-06
152/01   1.19856e-03    1.00389e-02   1.10141e-04   -4.89236e-05   -3.00097e-02    4.01124e-06
153/01   1.58601e-03   -1.25557e-01   6.80779e-05    7.76426e-03   -4.35249e-02    1.15007e-05




                                APPENDIX C


          WOCE94-A15/AR15:  CTD Shipboard and Processing Comments


                  Key to Problem/Comment Abbreviations             
      ------|------------------------------------------------------
      CD    | CTD #10 conductivity digitizer card going bad; non-  
            | linear drift in CTD conductivity values              
      CS    | deep -.001-2 mmho/cm conductivity discontinuity at   
            | raw value 32767 rising to 32768; NBIS digitizing     
            | problem when all 16 bits flip at once                
      DG    | density gradient in top 10db, data consistent/smooth 
            | in time-series CTD; possibly real                    
      DI    | density inversion in top 10db, data consistent/smooth
            | in time-series CTD; possibly real                    
      OB    | bottom ctdoxy signal drop coincides with slowdown for
            | bottom approach                                      
      OD    | up-cast, deep/bottom ctdoxy drifts high, won't fit   
            | correctly                                            
      OL    | ctdoxy fit low near surface: either slow cast start  
            | or low ctdoxy signal                                 
      OS    | up-cast surface ctdoxy fit off: btl stops, slowdown  
            | for surface approach                                 
      SS    | probable sea slime on conductivity sensor            
      WS    | winch stopped to check possible winch problem;       
            | potential shift in ctdoxy signal                     


                  Key to Solution/Action Abbreviations             
      ------|------------------------------------------------------
      CO    | offset deep conductivity for raw values 32768 and    
            | higher to negate effect of digitizing problem        
      NA    | no action taken, use default quality code 2          
      NR    | cast not processed, not reported with final data     
      O3    | quality code 3 oxygen in .ctd file for pressures     
            | specified                                            
      O4    | quality code 4 oxygen in .ctd file for pressures     
            | specified                                            
      PC    | matched up-cast CTD conductivity to up-cast bottles; 
            | applied 4th-order pressure correction to CTD #10     
            | conductivity                                         
      S3/T3 | quality code 3 salinity/temperature in .ctd file for 
            | pressures specified                                  
      T3    | quality code 3 temperature in .ctd file for pressures
            | specified                                            
      UP    | used up-cast data for final pressure-series data     



  Cast    Problem/Comment                    Solution/Action       
  -------|----------------------------------|----------------------
  998/01 |start with CTD #10, Port winch;   |NR                    
         |TEST cast                         |                      
  001/01 |CTD P/T1/T2/C went crazy          |UP                    
         |199-215db down-cast               |                      
         |OD                                |O4 184-230db          
  002/01 |OL                                |O3 0-30db             
  004/01 |DI .010                           |NA                    
  006/01 |DG .12 down-cast only, .01        |NA, time-series data  
         |density drop 12-14db              |consistent            
  008/01 |DG .15, both down- and up-cast    |NA                    
         |OB; part of drop may be real      |O3 3840-3856db        
  009/01 |OB, 1-min. pause at 3848db: drop  |O3 3848-3874db        
         |in ctdoxy                         |                      
  010/01 |ABORT cast at 1523db: too         |report cast anyways   
         |shallow/wrong position            |                      
         |no bottle samples taken           |stas 9+11 btloxys used
         |                                  |for ctdoxy fit        
  012/01 |WS 7 mins. at 858db: spike in     |O3 858db              
         |ctdoxy                            |                      


  Cast    Problem/Comment                    Solution/Action         
  -------|----------------------------------|----------------------
  013/01 |.007 density drop 6db             |NA, time-series data    
         |                                  |consistent              
         |WS 4 mins. at 2110db: drop in     |NA, corresponds with    
         |ctdoxy 2108-2124db                |rise in S               
  014/01 |WS 2-8 mins. at 299/2928/2944db   |NA, no shift noted      
         |WS 2-4 mins. at 3206/3326db: drop |O3 3326-3350db          
         |in ctdoxy                         |                        
         |WS 2-10 mins. at                  |O3 4060-4522db          
         |4059/4482/4519db: ctdoxy fits     |                        
         |high                              |                        
  015/01 |.007 density drop 2db             |NA, time-series data    
         |                                  |consistent              
         |WS 5 mins. at 1224db: spike in    |O3 1222db               
         |ctdoxy                            |                        
  016/01 |switch to Stbd. winch beginning   |UP                      
         |this cast; SS: -.002 PSU offset   |                        
         |near bottom of down-cast, shifts  |                        
         |back at bottom                    |                        
         |surface btloxy value questionable |stas 15+17 surface      
         |                                  |btloxys used for ctdoxy 
         |                                  |fit                     
         |OS                                |O3 0-34db               
         |OD                                |O3 4110-4410db, O4      
         |                                  |4412-4582db             
  019/01 |ABORT cast at 105m - winch noise  |NR                      
  019/02 |back to Port winch; WS 16 mins.   |O3 542-556db            
         |at 542db: rise in ctdoxy          |                        
         |CTD T/C signal erratic top 8m,    |T3/S3 0-8db             
         |density inversion                 |                        
  020/01 |SS -.005 PSU offset mid down-     |UP                      
         |cast, up ok                       |                        
         |~2-min. stops at 4598,4494,4392db |O3 3988-4470db, O4      
         |btls; OD                          |4472-4600db             
  026/01 |all btls tripped at bottom        |sta 28 btloxys used for 
         |                                  |ctdoxy fit              
  029/01 |-.003 PSU down vs up, up matches  |UP                      
         |btls/nearby casts                 |                        
         |6.5-min. btl stop/therm soak at   |O3 3946-4158db, O4      
         |4566db, OD                        |4160-4662db             
         |CS                                |CO 4660-4662db down/up, 
         |                                  |4570-4566db up          
  031/01 |WS 8 mins. at 2970db, 2 mins. at  |NA, no shift noted      
         |3080db                            |                        
  032/01 |DI .014; CS                       |NA; CO 4782-4918db      
         |                                  |down/up                 
  033/01 |DI .021; CS                       |NA; CO 4772-4816db      
         |                                  |down/up                 
         |yoyo 4775-4765db down: rise in    |O3 4776-4816db          
         |ctdoxy                            |                        
  034/01 |ABORT cast at 520db after 2 long  |NR                      
         |winch stops                       |                        
  034/02 |WS 3-mins. 38-48db/thermocline    |UP                      
         |down, SS multiple +/-.002 PSU     |                        
         |offsets down-cast                 |                        
         |OD; CS                            |O4 3756-4930db; CO      
         |                                  |4758-4930db down,       
         |                                  |4930-4754db up          
  035/01 |CS                                |CO 4818-4904db down/up  
  036/01 |DI .019; CS                       |NA; CO 4824-4992db      
         |                                  |down/up                 
  037/01 |CS                                |CO 4810-5086db down/up  
  038/01 |DG .12, up-cast gradient smaller; |NA; CO 4724-5182db down,
         |CS                                |5182-4726db up          
  039/01 |DG .22, up-cast gradient smaller  |NA                      
         |WS 2.5-mins. at 1947db: ctdoxy    |O3 1862-2350db          
         |shifts, fit off                   |                        
         |CS                                |CO 4710-5190db down/up  
  040/01 |no surface btloxy value           |stas 39+41 surface      
         |                                  |btloxys used for ctdoxy 
         |                                  |fit                     


  Cast    Problem/Comment                    Solution/Action        
  -------|----------------------------------|------------------------
         |DI .009; CS                       |NA; CO 4632-4654 +     
         |                                  |4670-4678db down,      
         |                                  |4654-4630db up         
  042/01 |CS 4670db down to bottom to       |not changed: S3        
         |4702db up                         |4670-4756db            
  044/01 |Romanche Fracture Zone, bottom    |bottom of cast at 6100db
         |depth exceeds CTD sensor limits   |                       
  045/02 |DI .013                           |NA                     
  046/01 |WS 9 mins. at 3693db, drop in     |O3 3692-3734db         
         |ctdoxy                            |                       
  047/01 |DG .31, up-cast gradient smaller  |NA                     
  049/01 |no surface btloxy value           |stas 48+50 surface     
         |                                  |btloxys used for ctdoxy
         |                                  |fit                    
         |WS 8 mins. at 4416db, drop in     |O3 4418-4472db         
         |ctdoxy                            |                       
  051/01 |CD; up-cast ctdoxy deep fit off,  |UP/PC; O3 3910-4550db  
         |bottom ok                         |                       
  052/01 |CD; OS, noisy signal, 1.5-min.    |UP/PC; O4 0-36db       
         |btl stop at 36db                  |                       
         |OD                                |O3 4472-4570db, O4     
         |                                  |4572-4820db            
  053/01 |CD; 8-min. btl stop/therm soak at |UP/PC; O4 4906-5312db  
         |5106db, OD                        |                       
  054/01 |CD; OS, 2-min. stop at 2db        |UP/PC; O3 0-50db       
         |yoyo/btl trip at 5013-5032db up,  |O4 4660-5102db         
         |OD                                |                       
  055/01 |CD; OS; OD                        |UP/PC; O4 0-40db; O3   
         |                                  |3900-4008db, O4        
         |                                  |4010-4028db            
  056/01 |CD; OS                            |UP/PC: cleaned         
         |                                  |conductivity sensor    
         |                                  |after cast; O4 0-52db  
         |6-min. btl stop/therm soak at     |O4 4470-4630db         
         |4464db, OD                        |                       
  057/01 |CD; OS                            |UP/PC; O4 0-44db       
         |6-min. btl stop/therm soak at     |O3 4164-4260db, O4     
         |4160db, OD                        |4262-4278db            
  058/01 |CD; OS; OD                        |UP/PC; O4 0-42db; O4   
         |                                  |4570-4820db            
  059/01 |CD; OS                            |UP/PC; O4 0-42db       
         |6-min. btl stop/therm soak at     |O4 4218-4312db         
         |4206db, OD                        |                       
  060/01 |CD; OS                            |UP/PC; O4 0-32db       
         |WS/btl stop 17 mins. at 4312db up |O4 4316-4466db         
         |to grease winch, OD               |                       
  061/01 |conductivity drifting too much on |CTD #4 used beginning  
         |CTD #10                           |this cast              
  062/01 |DI .015                           |NA                     
  072/01 |OL                                |O4 0-90db              
  073/01 |DI .013                           |NA                     
  075/01 |DI .010                           |NA                     
  076/01 |DI .018; OL                       |NA; O4 0-50db          
  077/01 |DI .016; OL                       |NA; O4 0-60db          
  078/01 |DI .007                           |NA                     
  079/01 |OL                                |O4 0-22db              
  080/01 |DI .012; OL, WS 2 mins. at 30db   |NA; O4 0-32db          
         |down while turning ship           |                       
  083/01 |DI .016                           |NA                     
  084/01 |surface btloxy value questionable |stas 82+83+86 surface  
         |                                  |btloxys used for ctdoxy
         |                                  |fit                    
  085/01 |surface btloxy value questionable |stas 83+86 surface     
         |                                  |btloxys used for ctdoxy
         |                                  |fit                    
  086/01 |DI .020                           |NA                     
  087/01 |DI .018 (.026 with 0-db           |NA                     
         |extrapolated level included)      |                       
  088/01 |DI .012                           |NA                     


  Cast    Problem/Comment                    Solution/Action         
  -------|----------------------------------|------------------------
         |pinger died, slow altimeter       |slow/careful bottom     
         |response                          |approach                
         |WS 2 mins. at 4598db, 5 mins. at  |NA, ctdoxy effect less  
         |4644db                            |than .02 ml/l           
  089/01 |DG .14, down- and up-cast         |NA                      
  090/01 |DG .18, down-cast only; OL        |NA; O4 0-88db           
  091/01 |DI .016; OL                       |NA; O4 0-92db           
  092/01 |OL                                |O4 0-80db               
  093/01 |+.005 density bulge 2-4db         |NA, time-series data    
         |                                  |consistent              
         |OL                                |O4 0-74db               
  094/01 |OL                                |O4 0-74db               
  095/01 |OL                                |O4 0-80db               
  096/01 |OL                                |O4 0-70db               
  097/01 |OL                                |O4 0-72db               
  098/01 |OL                                |O4 0-70db               
  099/01 |DI .020                           |NA                      
  100/01 |DI .010                           |NA                      
         |OL; no btloxy at 104db btl        |O4 0-104db; stas 99+101 
         |                                  |btloxys used for near-  
         |                                  |surface ctdoxy fit      
  101/01 |OL                                |O4 0-100db              
  102/01 |DI .010; OL                       |NA; O4 0-90db           
  103/01 |DI .020                           |NA                      
         |OL; no btloxy values between      |O4 0-94db; stas 102+105 
         |6-174db                           |btloxys used for near-  
         |                                  |surface ctdoxy fit      
  104/01 |OL; 99db btloxy questionable      |O4 0-100db; stas 102+105
         |                                  |btloxys used for near-  
         |                                  |surface ctdoxy fit      
  105/01 |+.008 density bulge 2-4db         |NA, time-series data    
         |                                  |consistent              
         |OL                                |O4 0-70db               
  106/01 |OL                                |O4 0-78db               
  107/01 |OL                                |O4 0-72db               
  108/01 |ABORT after launch: knot in tag   |NR                      
         |line                              |                        
  777/01 |TEST new CTD #10 C-sensor         |NR                      
  110/01 |new PRT2 sensor for CTD #4; black |PRT2/cond. corrections  
         |coating on conductivity sensor    |adjusted                
         |housing removed prior to cast,    |                        
         |cond. shifted                     |                        
         |Stbd. winch; pkg may have touched |NA, no evidence data    
         |bottom                            |affected                
  113/01 |WS 4 mins. at 154db - brake       |NA, no shift noted      
         |trouble                           |                        
  115/01 |DI .008                           |NA                      
  116/01 |back to Port winch                |                        
  117/01 |+.007 density bulge 4db           |NA, time-series data    
         |                                  |consistent              
  121/01 |OL                                |O4 0-94db               
  778/01 |TEST CTD #10: defective C sensor  |NR                      
         |flooded turret, PRT1/C sensors    |                        
         |ruined                            |                        
  126/01 |WS 2 mins. at 5083db for winch    |O3 5084-5128db          
         |inspection; drop in ctdoxy        |                        
  128/01 |switch to Stbd. winch: odd        |                        
         |noise/level wind trouble          |                        
         |3-min. stop at 16-20db distorted  |O4 0-20db               
         |surface fit                       |                        
  129/01 |back to Port winch at engineer's  |NA                      
         |request; DI .016                  |                        
  136/01 |OL                                |O4 0-104db              
  137/01 |Port winch has sheave/counter     |used repaired Stbd.     
         |problems                          |winch this cast         
         |DI .012                           |NA                      
  138/01 |ABORT - Stbd. winch problems      |NR                      
  138/02 |ABORT - Stbd. winch problems      |NR                      


  Cast    Problem/Comment                    Solution/Action         
  -------|----------------------------------|----------------------
  138/04 |ABORT - left sensor caps on; used |NR                      
         |repaired Port winch starting this |                        
         |cast                              |                        
  140/01 |OL                                |O4 0-80db               
  142/01 |DI .008; ctdoxy signal/ctdoxy fit |NA; O4 0-100db          
         |high near surface                 |                        
  143/01 |OL                                |O4 0-84db               
  144/01 |OL                                |O4 0-84db               
  145/01 |DI .010                           |NA                      
         |deep ctdoxy ~high relative to     |O3 3818-3970db          
         |btls/nearby CTD casts             |                        
  147/01 |DI .008; OL                       |NA; O4 0-90db           
  148/01 |DI .009; OL                       |NA; O4 0-94db           
  151/01 |back to Stbd. winch; DG .04,      |NA                      
         |down- and up-cast                 |                        
  153/01 |OB                                |O3 490-566db            






                                APPENDIX D


                 WOCE94-A15/AR15:  Bottle Quality Comments

Remarks for deleted samples, missing samples, PI data comments, and WOCE
codes other than 2 from WOCE A15/AR15 Deep Basin Experiment.  Investigation
of data may include comparison of bottle salinity and oxygen data with CTD
data, review of data plots of the station profile and adjoining stations,
and rereading of charts (i.e., nutrients). Comments from the Sample Logs
and the results of ODF's investigations are included in this report.  Units
stated in these comments are degrees Celsius for temperature, Practical
Salinity Units for salinity, and unless otherwise noted, milliliters per
liter for oxygen and micromoles per liter for Silicate, Nitrate, and
Phosphate.  The first number before the comment is the cast number (CASTNO)
times 100 plus the bottle number (BTLNBR).



STATION 001

136            Sample Log: "Top o-ring problem."  See 121 and 124 tripping
               and bottle comment.

135            See 121 tripping comment. No samples were drawn.

134            Sample Log: "Top o-ring problem."  See 121 and 124 tripping
               and bottle comment.

130-133        All tripped at surface to check bottle integrity; not
               sampled.

129            Sample Log: "Top o-ring problem."  See 121 and 124 tripping
               and bottle comment.

127-128        All tripped at surface to check bottle integrity; not
               sampled.

126            Sample Log: "Top o-ring problem."  See 121 and 124 tripping
               and bottle comment.

125            See 121 tripping comment. No samples were drawn.

124            Sample Log: "Top o-ring problem."  See 121 tripping comment.
               No samples were drawn.

121-123        All tripped at surface to check bottle integrity; not
               sampled.

120            Sample Log: "Top o-ring problem."  Samples are acceptable.

118            Sample Log: "O-ring problem, top and bottom-no water in
               bottle."

117            CTD Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 37db is 0.0581.  Salinity high compared with next
               stations, footnote salinity questionable.

113            Sample Log: "Top o-ring problem."  Samples are acceptable.

112            Sample Log: "Valve open prior to oxy sample."  Note: freon
               sample taken first according to log, valve should be open.
               Data should be okay.

110            Sample Log: "Top o-ring problem."  Samples are acceptable.

108            PI: "CTD-Bottle salt diffs very high, sharp gradient."
               Delta-S at 159db is 0.4905.  PI: "Footnote salinity bad."

107            PI: "CTD-Bottle salt diffs very high, sharp gradient."
               Delta-S at 159db is 0.1729.  This was a duplicate trip with
               8, both of these are higher than adjoining stations.
               Footnote salinity bad.

102-104        CTDO Processor: "Sh/upcast; bottom drifts high, won't fit
               correctly."  Code 184-230db CTDO bad.

101            CTD Processor: "Bottle salt slightly high compared to CTD."
               PI: "Salinity looks okay."  See 102-104 CTD Oxygen comment;
               code CTDO bad.



STATION  002

135-136        CTDO Processor: "Low raw surface signal, bad fit."  Code
               0-30db CTDO bad.

134            Sample Log: "Top o-ring out."  Oxygen not drawn.  Salinity
               not drawn.  Bad nuts, bottle leaked Footnote bottle leaking,
               samples bad.

130            Sample Log: "Bottom o-ring out."  Oxygen not drawn.
               Salinity not drawn.  Footnote bottle no samples were drawn.

129            Sample Log: "Top o-ring out."  Oxygen not drawn.  Salinity
               not drawn.  Bad nuts, bottle leaked Footnote bottle leaking,
               samples bad.

120            Sample Log: "Top o-ring out."  Delta-S at 505db is 0.2247.
               Bad salts, bottle leaked.  Oxygen not drawn.  Bad nuts,
               bottle leaked Footnote bottle leaking, salinity bad, oxygen
               not drawn, and nutrients bad.

117            Sample Log: "Top o-ring out."  Delta-S at 727db is 0.0992.
               Bad salt, bottle leaked.  Bad oxy, bottle leaked.  Bad nuts,
               bottle leaked.  Footnote bottle leaking, samples bad.

116            CTD Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 727db is 0.012.  Footnote salinity questionable.

114            CTD Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 808db is 0.018.  Footnote salinity questionable.

112            CTD Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 908db is 0.0144.  Salinity run shows erratic
               times to analyze samples.  This indicates analyst had
               trouble getting a good reading, even though it is not
               indicated what that problem is.  There was also a duplicate
               trip at this level and this salinity disagrees by 0.011,
               another indication there is a problem.  Other water samples
               are acceptable.  Footnote salinity bad.

101            NO2 value does not fit trend, possible contamination.
               Footnote NO2 bad.



STATION  003

136            Sample Log: "Top o-ring off."  Oxygen as well as other data
               are acceptable.

135            Sample Log: "Broken end cap."  No samples were drawn.

134            Sample Log: "Top o-ring off."  Delta-S at 52db is 0.0434.
               CTD Processor: "Bottle salt slightly high compared to CTD."
               Oxygen not drawn.  Footnote bottle leaking, salinity bad,
               oxygen not drawn, and nutrients bad.

131            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks okay."  Delta-S at 174db is -0.0527.
               Variation in CTD salinity uptrace at this sampling point,
               because the package has stopped to trip a bottle.  Footnote
               CTD salinity bad, value is probably good on its own merit
               just not to compare with the bottle data.  No CTDO is
               calculated because the CTD Salinity is coded bad.

130            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks ok."  Delta-S at 241db is -0.0291.  CTD
               Processor: "CTD Salinity is acceptable."

126            Sample Log: "Bottom o-ring off."  No samples were drawn.


121            Sample Log: "Vent o-ring problem, air leak."  Delta-S at
               647db is 0.0127.  Bad salts, bottle leaked.  Bad oxy, bottle
               leaked.  Bad nuts, bottle leaked.  Footnote bottle leaking,
               samples bad.

116            Sample Log: "Slow flow."  Samples are acceptable.

106-107        PI: "PO4 value appears too high."  Nutrient analyst: "PO4
               value looks odd on nuts chart also."  Footnote PO4 bad.

103            Sample Log: "Slow flow."  Oxygen as well as other samples
               are acceptable.



STATION 004

Cast 1         There were many problems with this salinity run.  It appears
               that the first 11 salinity samples are acceptable (01-11),
               but the rest of the cast had many retries before the
               operator either gave up or was about to run out of sample.
               If there is poor agreement with the CTD data, these will be
               coded bad.

135            Sample Log: "Top and bottom o-ring unseated/air leak."  No
               samples were drawn.

134            Sample Log: "Top o-ring unseated/air leak."  Delta-S at 54db
               is 0.0728.  salts: "Sample analyzed, sample log says no
               sample taken."  Oxygen not drawn.  Footnote bottle leaking,
               salinity bad, oxygen not drawn, and nutrients bad.

130            Sample Log: "Top o-ring unseated/air leak."  Delta-S at
               207db is 0.0961.  Oxygen not drawn.  Footnote bottle
               leaking, salinity bad, oxygen not drawn, and nutrients bad.

128            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Looks ok" Delta-S at 307db is -0.0473.  Autosal took 3
               tries to get readings to agree, this is usually an
               indication that the salinity would be bad.  Autosal
               diagnostics indicate some kind of stability problem.  Code
               salinity bad.

127            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Looks ok" Delta-S at 406db is -0.0287.  Autosal
               diagnostics indicate some kind of stability problem.  See
               Cast 1 salinity comment; code salinity bad.

122            Sample Log: "Top o-ring unseated/air leak."  Delta-S at
               700db is 0.0148.  Oxygen not drawn.  Footnote bottle
               leaking, salinity bad, oxygen not drawn, and nutrients bad.

120            Delta-S at 897db is 0.0105.  Took 7 readings before salinity
               value was obtained.  Code salinity bad.

118            PI: "Oxygen much too high."  High compared to CTD trace.
               Footnote O2 bad, based on PI comment.  Delta-S at 1046db is
               0.0083.  Took 5 readings before salinity value was obtained.
               Code salinity and oxygen bad.

117            Delta-S at 1196db is 0.0112.  Took 6 readings before
               salinity value was obtained.  Code salinity bad.

116            Sample Log: "Flows slowly."

109            Delta-S at 2105db is 0.0036.  Took 3 readings before
               salinity value was obtained.  Code salinity bad.

107            Delta-S at 2403db is 0.0039.  Suspect that it is just the
               inexperience of personnel which were not ODF personnel.  See
               Cast 1 salinity comment; code salinity bad.

105            salts: "Bottle 5 NG" Salinity not reported, not enough
               sample. Must not have been drawn.



STATION 005

Cast 1         Salts: "11-min. delay between 1st worm and sample 1; low
               stby number during 1st worm; high std dial (+27) and high
               drift (+16)."  Subtracted 0.00015 from sample conductivity
               ratios; assume no drift.  This results in a -0.003 offset to
               the salinity, and is correct as reported.  Data acquisition
               system was not receiving confirmation that the bottle
               tripped. Operator kept trying for the first 5 bottles.
               Bottles 3 through 5 were skipped, not tripped.  Electronic
               Technician reset pylon to position 6 and continued tripping
               bottles. Code all bottles did not trip as scheduled, data
               appears acceptable as pressures are assigned, unless
               otherwise noted.

136            Sample Log: "Top o-ring off."  No samples were drawn.

135            Sample Log: "Bottom o-ring off."  Oxygen: "Air bubble in
               flask."  Salinity and nutrients were not drawn.  Footnote
               bottle leaking, salinity not drawn, oxygen bad, and
               nutrients not drawn.

134            CTD Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 53db is 0.0993.  Gradient area, however salinity
               does not agree with adjoining stations.  PO4 is a little
               high, but within the specs of the measurement.  Oxygen: "Odd
               endpoint."  Oxygen is acceptable.  See Cast 1 tripping
               comments, code bottles did not trip as scheduled, and
               salinity questionable.

121-133        See Cast 1 tripping comments, code bottles did not trip as
               scheduled.

120            Sample Log: "Top o-ring off."  No samples were drawn.

116-119        See Cast 1 tripping comments, code bottles did not trip as
               scheduled.

115            Oxygen: "Paper in flask."  Oxygen is high, other data are
               acceptable.  See Cast 1 tripping comments, code bottles did
               not trip as scheduled, and oxygen bad.

114            See Cast 1 tripping comments, code bottles did not trip as
               scheduled.

113            Sample Log: "Top o-ring off."  Delta-S at 1860db is 0.099.
               Bad salts, bottle leaked.  Oxygen not drawn.  Bad nuts,
               bottle leaked.  Footnote bottle leaking, salinity bad,
               oxygen not drawn, and nutrients bad.

111-112        See Cast 1 tripping comments, code bottles did not trip as
               scheduled.

110            Oxygen: "Dosimat base malfunction, lost sample - changed
               base."  See Cast 1 tripping comments, code bottles did not
               trip as scheduled.

107-109        See Cast 1 tripping comments, code bottles did not trip as
               scheduled.

106            Oxygen: "Paper in flask."  Oxygen as well as other data are
               acceptable.  Delta-S at 2879db is -0.0032.  This is out of
               spec for WOCE standards.  Suspect that it is just the
               inexperience of personnel which were not ODF personnel.
               Code salinity as questionable.  See Cast 1 tripping
               comments, code bottles did not trip as scheduled.

103-105        Sample Log: "Did not trip."  No samples (3-5) as scheduled.

101-102        See Cast 1 tripping comments, code bottles did not trip as
               as scheduled.



STATION 006

136            Sample Log: "Top o-ring."  No samples were drawn.

134            Sample Log: "Top o-ring."  No samples were drawn.

133            CTD Processor: "Bottle salt slightly low compared to CTD."
               Delta-S at 87db is -0.0857.  Large gradient, does following
               adjoining stations trend.  Suspect is salinity acceptable.

132            Sample Log: "Bottom o-ring."  No samples were drawn.

130            Sample Log: "Top o-ring."  No samples were drawn.

115            Sample Log: "Recorded o2 temp may be higher than reality -
               forgot to read, had to re-check using minimal water."

114            CTD Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 1870db is 0.0103.  Autosal took 5 readings before
               two agreed. This is an indication of some kind of
               contamination, probably a salt crystal.  Footnote salinity
               bad.

102            CTD Processor: "Bottle oxy high."  PI: "Bottle oxy prob. ok,
               same trend seen in nuts."



STATION 007

135            Sample Log: "Bottom o-ring unseated."  No samples were
               drawn.

134            Sample Log: "Top o-ring unseated."  No samples were drawn.

129-130        Sample Log: "Top o-ring unseated."  No samples were drawn.

109            PI: "SiO3/O2 low, salt/NO3/PO4 high."  No notes re: leak on
               deck, normal trip confirmation possible lanyard hangup or o-
               ring problem?  Delta-S at 2780db is 0.0187.  Footnote bottle
               leaking, samples bad.

108            Oxygen: "Air bubble in flask."  PI: "Footnote oxygen bad."
               PO4 appears high compared with station profile and adjoining
               stations. A feature is seen in the other nutrients, oxygen
               and the CTD salinity.

102            Oxygen: "No good - bubble."  PI: "Footnote oxygen bad."



STATION 008

136            Sample Log: "Top o-ring problem."  Salinity and oxygen not
               drawn.  Nutrients may be a little high.  Footnote bottle
               leaking, salinity and oxygen not drawn, and nutrients bad.

138            Sample Log: "Replaces bottle 34 beginning this cast."

131            See 129 PI PO4 & NO3 comment. Footnote NO3 and PO4
               questionable.

137            Sample Log: "Replaces bottle 30 beginning this cast."  See
               129 PI PO4 & NO3 comment. Footnote NO3 and PO4 questionable.

129            PI: "PO4 and NO3 follows unusual trend."  Nutrient analyst:
               "Checked nut charts, trend appears real."  Footnote NO3 and
               PO4 questionable.

124            PI: "Oxygen seems high, check against CTD oxy."  Looks ok
               w/prelim CTDOXY.  Leave oxygen as is, no code.

123            Sample Log: "TCO2 sampled before oxygen."  Oxygen is
               acceptable.

121            Sample Log: "Oxygen sampled before freon."

117            Sample Log: "Bottom o-ring leaked, not unseated.  Apparently
               salts/nuts sampled even though crossed off."  Oxygen not
               drawn.  Footnote bottle leaking, salinity bad, oxygen not
               drawn, and nutrients bad.

116            Sample Log: "Bottom latched by recovery hook bringing
               aboard, apparently salts/nuts sampled even though crossed
               off."  Oxygen was not drawn.  Footnote bottle leaking,
               salinity bad, oxygen not drawn, and nutrients bad.

114            Sample Log: "Top o-ring problem.  Apparently salts/nuts
               sampled even though crossed off."  Delta-S at 1970db is
               0.1012.  Oxygen was not drawn.  Footnote bottle leaking,
               salinity bad, oxygen not drawn, and nutrients bad.

101            CTDO Processor: "Bottom signal drop coincides w/slowdown for
               bottom approach; part of drop may be real."  Code 3840-3856
               db CTDO questionable.



STATION 009

139            PI: "Nuts all too high, salt/oxy ok."  Nutrient analyst:
               "All peaks match extra surface sample, do not match bottle
               35 at same depth."  Suspect misdrawn from bottle 37 - 1st
               sta with bottle numbers > 36.  Sample Log: "Replaces bottle
               36 beginning this cast."  Footnote nutrients bad.

133            CTD Processor: "Bottle salt slightly high compared to CTD."
               PI: "Salinity looks ok."  Delta-S at 105db is 0.0544.
               Variation in CTD salinity uptrace at this sampling point,
               because the package has stopped to trip a bottle.  Footnote
               CTD salinity bad, value is probably good on its own merit
               just not to compare with the bottle data.  No CTDO is
               calculated because the CTD Salinity is coded bad.

137            See 128 PI PO4 and NO3 comment.  Footnote NO3 and PO4
               questionable.

129            See 128 PI PO4 and NO3 comment.  Footnote NO3 and PO4
               questionable.

128            PI: "PO4 follows unusual trend."  Nutrient analyst: "Checked
               nuts chart, trend appears real."  PI: "NO3 follows unusual
               trend."  Nutrient analyst: "Checked nuts chart, trend
               appears real."  Footnote NO3 and PO4 questionable.

121            Sample Log: "Top o-ring.  Apparently nuts/salts sampled even
               though crossed off."  Footnote bottle leaking, salinity bad,
               oxygen not drawn, and nutrients bad.

118            Sample Log: "Bottom o-ring.  Delta-S at 1665db is -0.014.
               Apparently nuts/salts sampled even though crossed off."
               Oxygen not drawn.  Footnote bottle leaking, salinity bad,
               oxygen not drawn, and nutrients bad.

116            Sample Log: "Slow flow."  Oxygen as well as other data are
               acceptable.

107            Sample Log: "Lanyard stuck under top end cap, but no air
               leak."  Delta-S at 3034db is 0.0044.  Samples are
               acceptable. There is a feature here that is also seen in the
               CTD data.

101            CTDO Processor: "1-min. pause at 3848db, drop in ctdoxy."
               Code CTDO questionable.



STATION 010

Cast 1         co log: "Abort cast at 1456mwo, too far from seamount; no
               bottles tripped."



STATION 011

131-132        PI: "PO4 follows unusual trend. PO4 probably okay."
               Nutrient analyst: "Checked nut charts, trend appears real."
               PI: "NO3 follows unusual trend. NO3 probably okay."
               Nutrient analyst: "Checked nut charts, trend appears real."

131            Oxygen: "Splinter in sample flask."  salts: "31 skip" -
               analyst said numbers bounced between 51/54 and program did
               not accept. Numbers not hand-recorded.  Will write down both
               numbers next time this happens."  Footnote salinity lost.

137            PI: "PO4 follows unusual trend. Probably okay."  Nutrient
               analyst: "Checked nut charts, trend appears real."  PI: "NO3
               follows unusual trend. Probably okay."  Nutrient analyst:
               "Checked nut charts, trend appears real."

125            Sample Log: "TCO2 and oxy taken out of sequence.  Oxy
               sampled more than 20 mins. after freon."  Oxygen appears to
               be okay, since there are no comments from CTDO Processor.

120-123        Sample Log: "Oxy sampled more than 20 mins. after freon."
               Oxygen appears to be okay, since there are no comments from
               CTDO Processor.

116            CTD Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 2276db is 0.0069.  Autosal took 3 tries before
               getting a good reading.  Salinity 0.002 higher than
               adjoining stations vs. pressure.  Footnote salinity bad.

113            Delta-S at 2785db is 0.0043.  Autosal took 6 tries before
               getting a good reading.  Salinity is also low compared with
               adjoining stations.  Footnote salinity bad.

103            CTD Processor: "Oxy value low compared to CTD trace."  CTDO
               Processor: "Looks like a dup draw of 102, low compared to
               CTDOXY at this level."  Footnote O2 bad.



STATION 012

138            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks ok."  Variation in CTD salinity uptrace
               at this sampling point, because the package has stopped to
               trip a bottle.  Footnote CTD salinity bad, value is probably
               good on its own merit just not to compare with the bottle
               data.  No CTDO is calculated because the CTD Salinity is
               coded bad.

126            CTDO Processor: "7 minute pause at 858db: spike in ctdoxy."
               Code CTDO questionable.

125            CTD Processor: "Bottle salt slightly high compared to CTD."
               PI: "Salinity looks ok."  Delta-S at 984db is 0.0141.

118            Sample Log: "Bottom o-ring."  No samples were drawn.



STATION 013

Cast 1         Sample Log: "TCO2 collected in larger volume for ALK as
               well."  sample log says box "C" for salts; asal output says
               box "Z"

135            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Looks ok."  Delta-S at 82db is -0.031.  Salinity agrees
               with adjoining stations.

138            CTD Processor: "Bottle salt slightly high compared to CTD."
               PI: "Looks ok."  Delta-S at 138db is 0.0478.  Salinity
               agrees with adjoining stations.  Feature in the CTD trace,
               both salinities are acceptable.

137            Sample Log: "Vent leak."  Oxygen as well as other samples
               are acceptable.  Salinity is a little low compared with
               adjoining stations, but agrees with CTD.

128            Delta-S at 670db is 0.0101.  No analytical problem noticed.
               Agrees with adjoining stations, salinity is acceptable.

123            Sample Log: "Very stiff vent."  Data are acceptable.

119            CTD Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 1871db is 0.008.  Does not agree with adjoining
               stations, footnote salinity bad.

118            Delta-S at 2023db is 0.0036.  Autosal took 3 tries before
               getting two readings to agree.  Suspect salinity is high by
               ~0.001.  Footnote salinity bad.

117            Delta-S at 2175db is 0.0041.  Autosal took 3 tries before
               getting two readings to agree.  Suspect salinity is high by
               ~0.001 to 0.002.  Footnote salinity bad.

116            Delta-S at 2378db is 0.0041.  Autosal took 5 tries before
               getting two readings to agree.  Suspect salinity is high by
               ~0.001 to 0.002.  Salinity is also high compared with
               adjoining stations.  Footnote salinity bad.

107            CTD Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 3853db is 0.0075.  Autosal took 4 tries before
               getting two readings to agree.  Suspect salinity is high by
               ~0.004 to 0.005.  High compared with adjoining stations.
               Footnote salinity bad.

105            Delta-S at 4057db is 0.0035.  Autosal diagnostics indicate
               there is a problem with this sample.  Suspect salinity is
               high by ~0.001 to 0.002.  Appears a little high compared
               with adjoining stations.  Footnote salinity bad.



STATION 014

139            Oxygen: "Sample no good?: analyst possibly added some thio
               when loading sample without adding acid, so oxy may be low."
               oxy ok, ml/l same as duplicate (135).

116            Sample Log: "Flowing slowly."  Oxygen as well as other data
               appear acceptable.

112            Nuts values look too high, no obvious reason.  Feature shows
               in salinity and oxygen as well as CTD data.

101-105        CTDO Processor: "2-10 minute pause at 4059/4482/4519db:
               ctdoxy fits high to bottom."  Code CTDO questionable.

101            Sample Log: "Oxy flask number 1084 has cracked neck."
               Oxygen as well as other data appear acceptable.  See 101
               CTDO comment, code CTDO questionable.



STATION 015

Cast 1         Sample Log: "Tritium box Q006."  Sample Log: "131 oxy drawn
               after 128 oxy, then 129,133,135,136."

131            Sample Log: "Freon drawn after 25, then 27 drawn, then dup
               freon drawn from 31."

118            Sample Log: "Top o-ring."  No samples were drawn.

113            CTD Processor: "Bottle salt slightly low compared to CTD."
               Delta-S at 2878db is -0.0066.  Autosal diagnostics indicate
               there is a problem with this sample.  Footnote salinity bad.

112            CTD Processor: "Bottle salt slightly low compared to CTD."
               Delta-S at 3081db is -0.0047.  Autosal diagnostics indicate
               there is a problem with this sample.  Footnote salinity bad.

111            CTD Processor: "Bottle salt slightly low compared to CTD."
               Delta-S at 3233db is -0.0068.  Autosal diagnostics indicate
               there is a problem with this sample.  Footnote salinity bad.

110            CTD Processor: "Bottle salt slightly low compared to CTD."
               Delta-S at 3385db is -0.0062.  Autosal diagnostics indicate
               there is a problem with this sample.  Footnote salinity bad.



STATION 016

Cast 1         Sample Log: "No comments."

139            CTDO Processor: "Surface bottle o2 much higher than
               surrounding casts, before or after."  No obvious analytical
               problem, could be drawing error.  CTDO Processor: "Upcast;
               surface fit off - bottle stops/surface approach."  Code 0-39
               db CTDO and bottle oxygen questionable.

126            CTD Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 861db is 0.0629.  PI indicates in data processing
               notes to delete salinity.  Footnote salinity bad.

125            CTD Processor: "Bottle salt slightly low compared to CTD."
               Delta-S at 987db is -0.0324.  PI indicates in data
               processing notes to delete salinity.  Footnote salinity bad.

115            CTD Processor: "Bottle salt slightly low compared to CTD."
               Delta-S at 2580db is -0.0101.  Suspect this is the same
               salinity sample as 14.  Either it was drawn incorrectly or
               inexperienced (non-ODF) salinity operator made a mistake.
               Footnote salinity bad.

112            Nuts values look high; no obvious reason.  Oxy value looks
               low.  Looks ok - see CTD trace.  Bottle-CTD salt difference
               high compared to nearby bottles.  CTD Processor: "Bottle
               salt slightly high compared to CTD."  Delta-S at 3189db is
               0.0076.  No analytical problem noted.  Footnote salinity
               bad.

106            Salts: "Stby number noisy."  Other Delta-S's are slightly
               negative, salinity appears low.  See 103 CTDO comment; code
               CTDO questionable and salinity bad.

105            Delta-S at 4221db is -0.0037.  Autosal took 3 tries before
               getting a good reading.  See 103 CTDO comment; code CTDO
               questionable and salinity bad.

104            See 103 CTDO comment; code CTDO questionable.

103            Delta-S at 4398db is -0.0045.  Autosal took 3 tries before
               getting a good reading.  CTDO Processor: "Upcast; bottom
               drifts high, won't fit correctly."  Code 4110-4410 db
               (103-106) CTDO questionable.  Footnote CTDO questionable and
               salinity bad.

101-102        CTDO Processor: "Upcast; bottom drifts high, won't fit
               correctly."  Code 4412-4582 db CTDO bad.



STATION 017

Cast 1         Sample Log: "No comments."

135            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Looks ok."  Delta-S at 85db is -0.0462.  No analytical
               problem noted, salinity is acceptable.

118            CTD Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 2022db is 0.0062.  Autosal took 5 tries before
               getting a good reading.  Footnote salinity bad.



STATION 018

Cast 1         Sample Log: "TCO2 and ALK collected in same bottle."  salts:
               "Change sample tube at sample 8."  Three standard seawater
               run at end of salinity run.  Suspect beginning seawater vial
               incorrect, applied an offset to entire station and assumed
               no drift.  Data appears much better, agrees with CTD.

135            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Looks ok."  Delta-S at 83db is -0.0318.  No analytical
               problem noted, salinity is acceptable.

137            PI: "PO4 value appears too high. Probably okay."  Nutrient
               analyst: "Checked nut charts and computer reading, value
               appears real."

123            PO4: deformed peak, questionable, poss bubble in flowcell.
               Code PO4 questionable.

113            PI: "PO4 value appears too high. Probably okay."  Nutrient
               analyst: "Checked nut charts and computer reading, value
               appears real."

110            PI: "PO4 value appears too high. Probably okay."  Nutrient
               analyst: "Checked nut charts and computer reading, value
               appears real."

108            CTD Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 3851db is 0.0045.  See Cast 1 salinity comment,
               this could have effected the sample, but even if the
               salinity bottle were open, the time until the sample was
               analyzed was minimal.  Footnote salinity questionable.



STATION 019

Cast 2         Sample Log: "Start draw 2030z / end draw 2225z."

231            Sample Log: "Freon took several tries to avoid bubbles;
               spigot close to pinger."

224            Sample Log: "Top o-ring unseated."  No samples were drawn.

219-223        Sample Log: "New tritium box 0036 beginning sample 219."

219            Oxygen: "Low endpoint."  PI: "Oxy conc. appears ok."



STATION 020

Cast 1         Sample Log: "Start draw 0150z / end draw 0310z."

127            CTD Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 670db is 0.021.  Autosal took 3 tries to get
               readings to agree.  Based on PI data processing notes, and
               analytical problem, footnote salinity bad.

126            Sample Log: "Bottom o-ring."  No samples were drawn.

120            CTD Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 1568db is 0.0053.  Autosal took 3 tries before
               getting a good reading.  Footnote salinity bad.

113            Sample Log: "Top o-ring."  No samples were drawn.

104-106        See 103 CTDO comment; footnote CTDO questionable.

103            CTD Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 4395db is 0.0053.  Autosal took 7 tries before
               getting a good reading.  CTDO Processor: "Upcast; bottom
               drifts high, won't fit correctly."  Code 3988-4470 db
               (103-106) CTDO questionable and salinity bad.

102            No nuts drawn, sampling error.

101-102        CTDO Processor: "Upcast; bottom drifts high, won't fit
               correctly."  Code 4472-4600 db CTDO bad.



STATION 021

118            CTD Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 2093db is 0.0063.  Autosal took 3 tries before
               getting a good reading.  Footnote salinity bad.

102            Sample Log: "Top o-ring; salts/nuts not recorded on log, but
               samples apparently drawn anyway."  Delta-S at 4404db is
               0.1127.  Oxygen not drawn.  Footnote bottle leaking,
               salinity bad, oxygen not drawn, and nutrients bad.



STATION 022

Cast 1         Sample Log: "Start draw 1910z / end draw 2015z."

102            Sample Log: "Switched with bottle 39 this cast (surface
               bottle) top o-ring unseated; freon/o2 samples taken shortly
               after rosette retrieval."  Oxygen is a little low compared
               with adjacent stations, but would be high if there were a
               bottle problem.

135            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks ok."  Delta-S at 76db is -0.0686.

138            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks ok."

132            Sample Log: "Bottom o-ring unseated."  No samples were
               drawn.

122            CTD Processor: "Bottle salt slightly low compared to CTD."
               Delta-S at 1295db is -0.0153.  Autosal diagnostics indicate
               there is a problem with this sample.  Footnote salinity bad.

104            Oxygen: "Air bubble."  O2 value very slightly high.  PI:
               "Code 4, oxygen bad."  Delta-S at 4017db is -0.003.

139            Sample Log: "Switched with bottle 2 this cast to get freon
               blank on white bottle number 39 in deep water."

101            Delta-S at 4226db is 0.0032.  Problem with getting a good
               reading is indicated on salinity run. Salinity is out of
               spec, does not indicate a problem with the bottle. Other
               data are acceptable.  Footnote salinity bad.



STATION 026

Cast 1         Sample Log: "All bottles tripped at 3750 Meters."  Salts:
               "Samples first run on asal 48-266 - use these values re-run
               on asal 48-263 for asal check - some samples ran out of
               water; use asal 48-263 for next few casts."

138            Sample Log: "Duplicate oxy with flask 1423 to check flask
               factor."

141            Marine tech log: "Bottle number 41 replaces number 32."  CTD
               Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 3794db is 0.0054.  Suspect an analytical problem,
               this sample could not be rerun.  Footnote salinity bad.

112            PI: "PO4 too high."  Nutrient analyst: "No obvious
               analytical error."  PI: "Footnote PO4 bad."

110            Sample Log: "Top o-ring unseated."  Delta-S at 3795db is
               0.0209.  salt too high compared with all other salts at same
               level.  sil value low, PO4 value high.  PI: "Delete nuts."
               Oxygen never drawn.  Footnote bottle leaking, salinity bad,
               oxygen not drawn, and nutrients bad.

108            Sample Log: "Valve hard to open."  Oxygen as well as other
               data are acceptable.

102            Sample Log: "Duplicate oxy with flask 786 / stopper 1215
               (call flask 9786) to check flask factor."



STATION 028

Cast 1         Sample Log: "TCO2/ALK sampled together (ALK before
               nuts/salts)."  salts: switch to autosal 48-263

135            Sample Log: "Bottom o-ring leak."  Marine tech log: "Top o-
               ring leak, lanyard stuck."  No samples were drawn.

131            Sample Log: "Top o-ring unseated."  No samples were drawn.

129            Sample Log: "Air leak, top o-ring leak."  No samples were
               drawn.

128            Sample Log: "Bottom lid cracked; try sampling anyways."
               Oxygen appears a little low compared with adjoining
               stations, but would be high if there were a leak.  Other
               data are acceptable.



STATION 029

Cast 1         PI: "PO4 may be slightly low for station; appears too low
               when comparing theta/PO4 to theta/NO3 plots."  PI: "Omitting
               this station for PO4 vertical section results in better
               agreement with NO3 vertical sections."  Footnote PO4
               questionable.  Analyst: "PO4 baselines corrected, data ok
               now."

135            Sample Log: "Leaking/gushing out the bottom."  No samples
               were drawn.

113            PI: "O2 slightly high relative to vertical trend. Check for
               bad analysis or draw temp."  Oxygen analyst found flask mix-
               up, after correction data much better.

104-105        CTDO Processor: "Upcast; bottom drifts high, won't fit
               correctly."  Code 3946-4158 db CTDO questionable.

101-103        CTDO Processor: "Upcast; bottom drifts high, won't fit
               correctly."  Code 4160-4662 db CTDO bad.



STATION 030

119            Sample Log: "Lanyard caught in cap, no samples taken."  No
               samples were drawn.



STATION 031

Cast 1         Oxygen: "Oxygen system hung up during debubbling buret
               between samples 14/15; no samples lost.

135            Sample Log: "Lanyard problem."  No samples were drawn.

106            CTD Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 3753db is 0.0073.  Autosal took 3 tries to get
               readings to agree.  Based on PI data processing notes and
               analytical problem, footnote salinity bad.

104            Sample Log: "No sample in nuts tube no.4 - drew sample from
               salt btl number 4 ~30 mins. after end collection time."
               Salinity and nutrients appear to be okay.



STATION 032

Cast 1         PI: "PO4 too high by about 0.1uM/kg when comparing theta/PO4
               to theta/NO3 plots."  Nutrient analyst: "No obvious
               analytical error. Hand recorded data also evaluated, shows
               same trend. PO4 Data not recoverable."  PI: "Omitting this
               station from PO4 vertical section results in better
               agreement with NO3 vertical section."  Footnote PO4 bad.
               salts: "Abort first run after worm and 1/2 101 used up."
               Problem with suppression switch on 48-263 asal where you can
               get 2 ranges confused (i.e. 1.9 to 2.0 switch).

139            Nuts: "39 collected/run - not recorded on sample log."  See
               Cast 1 PO4 comment; code PO4 bad.

135            CTD Processor: "Bottle salt slightly low compared to CTD."
               Spike in CTD up trace.  Bottle salinity agrees with Station
               034, next station sampled at same pressure.  No CTDO is
               calculated because the CTD Salinity is coded bad.  See Cast
               1 PO4 comment.  Code CTD Salinity bad, CTD Oxygen not
               reported, and PO4 bad.

138            See Cast 1 PO4 comment; code PO4 bad.

133            See Cast 1 PO4 comment; code PO4 bad.

141            See Cast 1 PO4 comment; code PO4 bad.

131            See Cast 1 PO4 comment; code PO4 bad.

137            See Cast 1 PO4 comment; code PO4 bad.

119-129        See Cast 1 PO4 comment; code PO4 bad.

140            See Cast 1 PO4 comment; code PO4 bad.

112-117        See Cast 1 PO4 comment; code PO4 bad.

111            Delta-S at 3038db is 0.0037.  Autosal took 3 tries before
               getting a good reading.  Footnote salinity, PO4 bad.

109-110        See Cast 1 PO4 comment; code PO4 bad.

108            Delta-S at 3648db is 0.0041.  Autosal took 3 tries before
               getting a good reading.  Footnote salinity, PO4 bad.

106-107        See Cast 1 PO4 comment; code PO4 bad.

105            Delta-S at 4262db is 0.0036.  Autosal took 5 tries before
               getting a good reading.  Footnote salinity, PO4 bad.

104            Delta-S at 4416db is 0.0044.  Autosal took 5 tries before
               getting a good reading.  Footnote salinity, PO4 bad.

102-103        See Cast 1 PO4 comment; code PO4 bad.

101            Delta-S at 4918db is 0.0114.  salts: "Sample half used up in
               aborted run before analysis."  Salt value high compared to
               CTD, other deep salts; see Cast 1 comment, operator aborted
               the analysis to discuss the problem with the salinometer
               expert.  Footnote salinity, PO4 bad.



STATION 033

Cast 1         PI: "PO4 too high by ~0.1uM/kg when comparing theta/PO4 to
               theta/NO3 plots."  Nutrient analyst: "No obvious analytical
               error, hand recorded data also evaluated, shows the same
               trend. PO4 data not recoverable."  PI: "Omitting this
               station from PO4 vertical section results in better
               agreement with NO3 vertical section."  Sample Log: "Start
               draw 1127z/end draw 1310z."  Footnote PO4 bad.

139            See Cast 1 PO4 comments, code PO4 bad.

135            Sample Log: "Bottom o-ring."  No samples were drawn.

138            See Cast 1 PO4 comments, code PO4 bad.

133            See Cast 1 PO4 comments, code PO4 bad.

141            See Cast 1 PO4 comments, code PO4 bad.

131            See Cast 1 PO4 comments, code PO4 bad.

137            See Cast 1 PO4 comments, code PO4 bad.

129            See Cast 1 PO4 comments, code PO4 bad.

128            PI: "Nuts look low, dip at 450m on vertical section plots
               also."  Nutrient analyst: "No obvious analytical error."
               Nutrient analyst: "NO3/sil/PO4 values look low, no obvious
               problem."  Footnote nutrients bad, PI suggests deletion.
               Footnote PO4 bad, see Cast 1 PO4 comment.

119-127        See Cast 1 PO4 comments, code PO4 bad.

140            See Cast 1 PO4 comments, code PO4 bad.

104-117        See Cast 1 PO4 comments, code PO4 bad.

103            Sample Log: "Lanyard caught; apparently salts drawn even
               though not recorded on log."  Delta-S at 4569db is 0.0115.
               salts: "Bottle 3 only 1/2 full - ?? sample."  Salt value
               high compared to CTD, other deep salts; leaky bottle.
               Oxygen and nutrients were not drawn.  Footnote bottle
               leaking, salinity bad, oxygen and nutrients not drawn.

102            PI: "O2 value high compared to CTD trace, nearby oxys."  Oxy
               flask/drawT/voltage appear to be fine.  Oxygen analyst: "No
               obvious analytical reason for high O2 value."  See Cast 1
               PO4 comments.  Footnote oxygen and PO4 bad.

101            See Cast 1 PO4 comments, code PO4 bad.  CTDO Processor:
               "yoyo 4775-4765db down; rise in ctdoxy."  Code CTDO
               questionable.



STATION 034

Cast 2         CO log: "Cast 1 aborted cast at 500m/restart from surface as
               cast 2 - too many unscheduled/long winch stops."

242            No sample in tube number 35, sampler error.  Nutrients were
               not drawn.

226            Sample Log: "Top/bottom o-rings both unseated."  No samples
               were drawn.

203-207        See 201 CTDO comment; footnote CTDO bad.

202            CTD Processor: "Bottle salt slightly low compared to CTD."
               Delta-S at 4777db is -0.0065.  Salinometer took 4 readings
               before two agreed.  Other data are acceptable.  See 201 CTDO
               comment; footnote CTDO bad and salinity bad.

201            CTDO Processor: "Upcast; bottom drifts high, won't fit
               correctly."  Code 3756-4930 db (201-207) CTDO bad.



STATION 035

138            Sample Log: "Redrew oxy sample immediately after 1st draw -
               forgot to pickle sample first time."

142            Sample Log: "Lanyard in top cap, no good."  No samples were
               drawn.

115            Delta-S at 2165db is -0.004.  Autosal took 3 tries before
               getting a good reading.  Footnote salinity bad.

111            Delta-S at 2887db is -0.0037.  No analytical problem noted.
               Salinity is acceptable.

109            Delta-S at 3294db is 0.0049.  Autosal took 3 tries before
               getting a good reading.  Footnote salinity bad.

108            Shipboard Processor: "Circle at 3450m on sigmatheta vertical
               section; sigma4 plot ok, salt value looks ok.  Delta-S at
               3498db is 0.0033.  Autosal took 3 tries before getting a
               good reading.  Footnote salinity bad.



STATION 036

Cast 1         Sample Log: "Start draw 0620z/end draw 0750z."

131            Sample Log: "Top end cap problem."  No samples were drawn.


129            Sample Log: "Top o-ring."  No samples were drawn.

108            CO log/Sample Log: "Operator error, fired on the fly - do
               not sample (8)."



STATION 037

Cast 1         Sample Log: "Start draw 1230z TCO2/ALK drawn together (ALK
               before nuts/salt)."

142            Sample Log: "Vent not closed tightly."  Marine tech log:
               "Number 42 air vent not tight enough."  Samples were not
               collected per sampling schedule.

115            PI: "O2 slightly high."  Footnote O2 questionable.

114            PI: "SIL is high relative to adjacent stations. Identical to
               the value for 13, NO3 and PO4 one also identical, but are in
               a low vertical gradient region. It appears that nutrients
               for bottle 14 were drawn from 13."  Footnote nutrients bad.

113            Sample Log: "No nut sample collected from NB number 13; took
               some from salt sample."

106            PI: "O2 slightly high."  Footnote O2 questionable.



STATION 038

142            Marine tech log: "Lanyard in top cap."  CTD Processor:
               "Bottle salt slightly low compared to CTD."  PI: "Salinity
               looks ok".  Delta-S at 45db is -0.0308.  Autosal took 3
               tries before getting a good reading.  This bottle appears to
               have had a problem on several stations.  Oxygen could be a
               little high, nutrients appear acceptable for shallow data.
               Low salinity and high oxygen are consistent with a leak. But
               since PI notes indicate that salinity is okay, leave data as
               acceptable.

129            CTD Processor: "Bottle salt slightly low compared to CTD."
               Delta-S at 549db is -0.0124.  No analytical problem noted.
               Salinity agrees with adjoining stations.  Salinity is
               acceptable.

128            Sample Log: "Bottom o-ring."  No samples were drawn.

124            Sample Log: "Top o-ring."  No samples were drawn.

102            PI: "O2 low."  Footnote O2 questionable.



STATION 039

Cast 1         Sample Log: "Finished drawing 0340z."

142            Sample Log: "Lanyard in top cap."  No samples were drawn.

123            PI: "Nuts too high - delete IF value stands as bad
               analysis."  Nutrient analyst: "No obvious analytical reason
               for high nuts."  Nuts appear as circle on vertical section.
               Footnote nutrients questionable.

119            CTD Processor: "Bottle salt slightly high compared to CTD."
               PI: "Salinity looks ok."  Delta-S at 1869db is 0.0069.
               Autosal took 6 tries before getting a good reading.  PI
               notes indicate salinity is okay, ODF would footnote this
               salinity bad, but PI says this salinity is okay.  Salinity
               is also higher than adjoining stations.  See 117 CTDOXY
               comment; code CTDO questionable.

140            Delta-S at 2022db is 0.0038.  Salinity is acceptable, agrees
               with adjoining stations.  See 117 CTDOXY comment; code CTDO
               questionable.

117            CTDO Processor: "2.5-min. stop at 1944-1950db, raw signal
               shifts; nearby area bad fit to T/C feature."  Code 1862-2350
               db CTDO questionable.

113            CTD Processor: "O2 value high compared to CTD trace, also on
               stas 40,43."  Oxygen Analyst: "No obvious analytical reason
               for high O2 value."  flask/drawT/voltage look ok.  Suspect
               bottle 13 - fixed prior to sta 47.  Footnote oxygen bad as
               PI asked it to be deleted.

112            Delta-S at 3240db is 0.0059.  Autosal took 3 tries before
               getting a good reading.  Does not agree with adjoining
               stations.  Footnote salinity bad.

111            Delta-S at 3444db is 0.0035.  Autosal took 5 tries before
               getting a good reading.  Does not agree with adjoining
               stations.  Footnote salinity bad.

110            CTD Processor: "Bottle salt slightly high compared to CTD."
               PI: "Salinity looks ok."  Delta-S at 3648db is 0.0063.
               Autosal took 4 tries before getting a good reading.  PI
               notes indicate salinity is okay, ODF would footnote this
               salinity bad, but PI says this salinity is okay.  Footnote
               salinity questionable.



STATION 040

139            Sample Log: "Lanyard of bottle 1 in top cap; draw anyway."
               Oxygen not drawn.  Data are acceptable.

142            Sample Log: "Question re: whether leaked vs outside
               condensation."  CTD Processor: "Bottle salt slightly low
               compared to CTD."  PI: "Salinity looks okay."  No analytical
               problem noted.

129            Sample Log: "Lanyard of bottle 28 in top cap."  No samples
               were drawn.

113            CTD Processor: "Oxy value high compared to CTD trace, also
               on stas 39,43."  Oxygen analyst: "Oxy no obvious analytical
               reason for high O2 value."  PI: "Footnote oxygen bad."
               Suspect bottle 13 - fixed prior to sta 47.



STATION 041

Cast 1         Sample Log: "Draw started about 1250z."

139            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks ok."  Delta-S at 9db is -0.0344.
               Autosal took 3 readings before getting an agreement.  Based
               on PI comment, salinity is acceptable.

142            CTD Processor: "Circle on prelim nuts/salt vertical sections
               at 50m; nuts look high compared with other nearby casts;
               delta-S is huge (-.746 prelim) even in high gradient area;
               oxy seems ok, but sigma for CTDOXY fit improves by 3x when
               value removed and then trace resembles nearby casts; note in
               052/quality says bottle 42 replaced by 35 because leaky."
               PI: "All values bad."  Delta-S at 51db is -0.532.  Footnote
               bottle leaking, samples bad.

123            Delta-S at 1315db is 0.0071.  No analytical problem noted.
               Salinity is acceptable.

112            Sample Log: "Oxy flask 856 is cracking on the top.  Should
               not affect the sample."



STATION 042

Cast 1         Sample Log: "No comments."

115            CTD Processor: "Oxy value high compared to CTD trace."  Oxy
               no obvious analytical reason for high O2 value.  PI:
               "Footnote oxygen bad."


104            CTD Processor: "intermittent conductivity discontinuity not
               changed; 4670db down to bottom to 4702db up."  No CTDO is
               calculated because the CTD Salinity is coded bad.  Code CTD
               salinity bad and CTD oxygen not reported.



STATION 043

Cast 1         Sample Log: "Start draw 0202z; end draw 0410z ALK drawn with
               TCO2/same bottle for both."

125            CTD Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 1062db is 0.0098.  No analytical problem noted.
               Salinity agrees with adjoining stations.

117            Delta-S at 2174db is 0.0031.  No analytical problem noted.
               Salinity is acceptable.

113            CTD Processor: "Oxy value high compared to CTD trace, also
               on stas 39,40."  oxy no obvious analytical reason for high
               O2 value.  flask/drawT(in-line w/freon draw order)/voltage
               look ok.  Suspect bottle 13 - fixed prior to sta 47.  PI:
               "Code oxygen bad."

105            Sample log: "No nutrient sample drawn for number 5, got
               sample from salt bottle."  Oxygen: "Bubble."  Oxy value high
               (offscale) compared to CTD trace.  Delta-S at 3904db is
               0.0027.  Autosal took 3 tries before getting a good reading.
               Salinity is acceptable, code oxygen bad.



STATION 044

101            Sample Log: "Oxygen sampled late."  Oxygen appears
               acceptable.



STATION 045

Cast 2         Sample Log: "500ml sample taken for TCO2 to include ALK."

240            CTD Processor: "Oxy slightly high compared to CTD trace."
               PI: "Code oxygen bad."

225            Sample Log: "Drain cock open."  Oxygen as well as other data
               are acceptable.

216            Oxygen: "Clump of kimwipe in sample during analysis oxy high
               compared to CTD trace."  Footnote oxygen bad.

214-217        PI: "Rise in sigma4/theta on vertical section at 2600-3000m;
               circle/dip in vertical section for sigmatheta/salinity at
               2700m.  Data looks ok on property plots, Bottle-CTD delta-S
               values look good."

201            CTDO Processor: "Oxy slightly low compared to CTD trace."
               CTDO Processor: "Bottom bottle (O2) looks low compared to
               nearby casts. No structure at bottom visible in T/S."  No
               analytical problem noted, but oxygen does not appear
               acceptable. Oxygen low by ~0.03 to 0.05 ml/l.  Footnote
               oxygen bad.



STATION 046

120            Sample Log: "Air valve may not have been closed tightly."
               CTD Processor: "Bottle salt slightly high compared to CTD."
               PI: "Salinity looks ok."  Delta-S at 2124db is 0.0047.  No
               analytical problem noted.

117            PI: "High bottle salt (Delta-S +.040) compared to nearby
               bottles/ctd."  Delta-S at 2733db is 0.0487.  Footnote
               salinity bad.

101            Sample Log: "Forgot to purge oxy reagents before pickling
               1."  Oxygen is acceptable.



STATION 047

Cast 1         Sample Log: "Start draw 0705z; end 0910z TCO2 and ALK drawn
               in same bottle."

139            Sample Log: "1st keeling started 0857z."

133            CTD Processor: "Circle at 200m on prelim sigmatheta vertical
               section plot; prelim delta-S is +.573 - high even for
               gradient area.  Salinity matches salt value for bottle 138
               (one up) - mis-draw?  Delta-S at 175db is 0.5594.  Footnote
               salinity bad.

129            Sample Log: "Lanyard in upper cap."  No samples were drawn.

140            Delta-S at 2047db is 0.0037.  PO4: "Bubble stuck in flow
               cell."  Could not get a good peak reading.  Footnote PO4
               lost.

114-117        PO4: "Suspect bubble stuck in flow cell."  Footnote PO4
               lost.

113            Sample Log: "Drain valve and air vent replaced before this
               cast, to fix problem w/high oxy values on earlier stas."

111            Sample Log: "Replaced drain valve/air vent prior to cast 2nd
               keeling started 1756z/finished 0801z."

108            Sample Log: "Replaced drain valve/air vent prior to cast."

101            Sample Log: "Replaced drain valve/air vent prior to cast."



STATION 048

Cast 1         CO log: "double pdr trace at start, bottom reading
               uncertain."  Sample Log: "Many very tiny bubbles coming out
               of MnCl2 for oxy; solns cold/inside to very hot outside air.
               Soln purged well."

139            Oxygen: "Bubble."  PI: "O2 appears ok even though bubble in
               flask."

142            Oxygen: "Bubble."  PI: "O2 appears ok even though bubble in
               flask."

131            CTD Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 335db is 0.0291.  No analytical problem noted.
               There is a significant difference between the down and up
               trace CTD.  Salinity is acceptable.

119            Nutrient Analyst: "Suspect bubble stuck in flow cell."
               Could not get a good peak reading.  Footnote PO4 lost.

112            CTD Processor: "Bottle oxy high compared to CTD trace."
               flask/drawT ok; voltage 1.3 (vs 1.0 on other flasks or this
               flask on other station runs).  Oxygen Analyst: "Air bubbles
               in MnCl2 could possibly cause high O2, no other analytical
               reason for high O2."  Footnote oxygen bad.

102            Sample Log: "Oxy had to be drawn twice - bubbles in MnCl2."

101            Sample Log: "Oxy had to be drawn twice - drain cock loose,
               would not stay open."



STATION 049

Cast 1         Sample Log: "Begin draw 2300z/end draw about 0100z."
               Bottles were tripped in a special sequence for freon checks.
               The trip sequences, deepest to shallowest, were bottles
               7-17, 40, 19-29, 37, 31, 41, 33, 38, 42, 39, and 1-6.

142            NO3/PO4 values look low, no obvious reason.  SiO3 and other
               data appear to be okay. Oxygen is a little higher than
               adjoining stations. Data are acceptable.
137            CTD Processor: "Bottle oxy high compared to CTD trace."  PI:
               "O2 appears high relative to CTD, but looks ok - does follow
               trend in high gradient region."

128            PI: "Oxygen appears high relative to adjacent stations. NO3
               slightly low. CTD oxygen shows aa  max at this level, so
               data is ok."

120            CTD Processor: "Bottle oxy high compared to CTD trace."
               Oxygen: "No obvious analytical reason for high O2 value."
               flask number/drawT/voltage look ok.  PI: "Footnote oxygen
               bad."

112-113        CTDO Processor: "8 minute pause at 4416db, drop in ctdoxy."
               Code CTDO questionable.

106            Sample Log: "Bottom o-ring leak, no gases taken - tried to
               get salts/nuts, but no water left at drawing time."  No
               samples were drawn.



STATION 050

139            Oxygen: "Dirt in sample."  PI: "Oxygen seems ok."

142            Sample Log: "Possible leak?."  PI: "Samples appear ok."

125            Nuts values look high, similar to bottle number 27, misdraw?
               PI: "Nuts too high, flag as bad."  Dip in vertical section
               for nuts at this level.

119            Delta-S at 2024db is 0.0029.  No analytical problem noted.
               Salinity agrees with adjoining stations.

117            Delta-S at 2429db is -0.0026.  No analytical problem noted.
               Salinity agrees with adjoining stations.  CTD Processor:
               "The upcast is offset from the downcast; suspect a problem
               with the CTD."  Code CTD salinity questionable.  No CTDO is
               calculated because the CTD Salinity is coded questionable.

116            CTD Processor: "The upcast is offset from the downcast;
               suspect a problem with the CTD."  Code CTD salinity
               questionable.  No CTDO is calculated because the CTD
               Salinity is coded questionable.

115            Delta-S at 2835db is -0.0037.  No analytical problem noted.
               Salinity agrees with adjoining stations.  CTD Processor:
               "The upcast is offset from the downcast; suspect a problem
               with the CTD."  Code CTD salinity questionable.  No CTDO is
               calculated because the CTD Salinity is coded questionable.

114            Delta-S at 3039db is -0.0041.  No analytical problem noted.
               Salinity agrees with adjoining stations.  CTD Processor:
               "The upcast is offset from the downcast; suspect a problem
               with the CTD."  Code CTD salinity questionable.  No CTDO is
               calculated because the CTD Salinity is coded questionable.

113            Delta-S at 3243db is -0.0049.  No analytical problem noted.
               Salinity agrees with adjoining stations.  CTD Processor:
               "The upcast is offset from the downcast; suspect a problem
               with the CTD."  Code CTD salinity questionable.  No CTDO is
               calculated because the CTD Salinity is coded questionable.

112            CTD Processor: "The upcast is offset from the downcast;
               suspect a problem with the CTD."  Bottle salinity is high
               compared with station profile and adjoining stations vs.
               Potemp, but agrees with Station 051 and 052 vs. Pressure.
               No CTDO is calculated because the CTD Salinity is coded
               questionable.  Footnote CTD salinity questionable, CTD
               Oxygen not reported, and bottle salinity questionable.

111            Delta-S at 3651db is -0.0052.  No analytical problem noted.
               Salinity agrees with adjoining stations.  CTD Processor:
               "The upcast is offset from the downcast; suspect a problem
               with the CTD."  Code CTD salinity questionable.  No CTDO is
               calculated because the CTD Salinity is coded questionable.

110            Delta-S at 3855db is -0.0051.  No analytical problem noted.
               Salinity agrees with adjoining stations.  CTD Processor:
               "The upcast is offset from the downcast; suspect a problem
               with the CTD."  Code CTD salinity questionable.  No CTDO is
               calculated because the CTD Salinity is coded questionable.

101            CTD Processor: "Bottle oxy looks a little high compared to
               CTD trace."  PI: "O2 probably ok."  Wrong oxygen flask
               entered in data file. Oxygen is acceptable after correction.



STATION 051

Cast 1         Sample Log: "TCO2/ALK drawn in same bottle."  Comments
               regarding PDR info: "352 more m of wire out than pdr depth
               w/no wire angle."

142            Sample Log: "Has a leak in upper cap."  No samples were
               drawn.  Marine tech log: "42 leaks from top valve."

140            Delta-S at 2125db is 0.0352.  salts: "Low-volume sample."
               Circle on sigmatheta/salinity vertical section at 2100m.
               0.027 higher Bottle-CTD delta-S than nearby bottles.  High
               oxy.  PI: "O2 value probably real, no flag."  PI: "Code
               salinity bad."

116            Sample Log: "Oxy drawn before freon."  Delta-S at 2531db is
               0.032.  Circle on sigmatheta/salinity vertical section at
               2500m.  0.027 higher Bottle-CTD delta-S than nearby bottles.
               PI: "Code salinity bad."

112            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks ok."

105            Marine tech log: "Sticky valve."  Sample Log: "Check
               endpoint."

104-106        CTDO Processor: "Upcast; won't fit correctly."  Code
               3910-4550 db CTDO questionable.

101-103        CTDO Processor: "Bottom 3 bottles (O2) look high compared to
               nearby casts, but line up well with each other."  No
               analytical problem noted. PO4 and salinity are slightly
               lower than adjoining stations and NO3 and SiO3 are very
               slightly higher. Draw temperature for bottle 01 does appear
               ~0.2 high.  Oxygen is acceptable.

101            No salinity analytical problem noted.  Salinity is
               acceptable.



STATION 052

Cast 1         Marine tech log: "Mer cast simultaneously."  Sample Log:
               "Assume nuts/salts drawn even though not logged.  Oxy flask
               number messup on sample log, posns 7-22.  Sample cop could
               have helped keep this straight."

139            CTDO Processor: "Upcast; surface fit off - bottle
               stops/surface approach; noisy signal."  Code 0-36 db CTDO
               bad.

135            CO log/Sample Log: "Bottle 35 replaces 42 beginning this
               cast."  CO log: "Bottle 42 was leaky."  See 139 CTDO
               comment; code CTDO bad.

123            Sample Log: "Lanyard in upper cap."  No samples were drawn.

110            CTD Processor: "Bottle oxy looks high compared to CTD
               trace."  flask/drawT/voltage all look ok (despite flask
               number confusion on Sample Log - Sample Log probably
               corrected ok).  Oxygen: "Lab temperature rose 3to5 degrees
               during this station run. No other obvious analytical reasons
               for high O2 value."  PI: "Code oxygen bad."
103            CTDO Processor: "Upcast; bottom drifts high, won't fit
               correctly."  Code 4472-4570 db CTDO questionable.

101-102        CTDO Processor: "Upcast; bottom drifts high, won't fit
               correctly."  Code 4572-4820 db CTDO bad.



STATION 053

Cast 1         Sample Log: "Start drawing after 0050z/end drawing about
               0300z."

135            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks ok."  Delta-S at 41db is -0.054.  No
               analytical problem noted.

137            PI: "NO3 appears slightly high; suspect trend real."
               Nutrient analyst: "Trend also seen in other stas."

129            Sample Log: "Lanyard in top cap."  No samples were drawn.

116            CTD Processor: "Bottle oxy looks low compared to up/down CTD
               trace."  PI: "CTD vertical trend is in agreement w/nut
               profile here."  Oxygen: "No obvious analytical reason for
               low O2, some variation in lab temperature."  PI: "Code
               oxygen bad."

112            Sample Log: "Bottom o-ring."  No samples were drawn.

101-102        CTDO Processor: "Upcast; bottom drifts high, won't fit
               correctly."  Code 4906-5312 db CTDO bad.



STATION 054

Cast 1         Sample Log: "No sampler initials, no nuts/salts logged, no
               bottle number's updated on form."

139            CTDO Processor: "Upcast; slowdown near surface, won't fit
               correctly."  Code 0-50 db CTDO questionable.

135            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks ok."  See 139 CTDO comment; code CTDO
               questionable.

129            Sample Log: "Lanyard from 28 caught in top end cap."  No
               samples were drawn.

101-104        CTDO Processor: "Upcast; bottom drifts high, won't fit
               correctly."  Code 4660-5102 db CTDO bad.



STATION 055

Cast 1         Sample Log: "500ml TCO2 samples include water for TALK."

139            CTDO Processor: "Upcast; surface fit off - bottle
               stops/surface approach."  Code 0-40 db CTDO bad.

135            Sample Log: "Bottom o-ring."  No samples were drawn.

124            Delta-S at 1062db is 0.005.  Autosal took 3 tries before
               getting a good reading.  Footnote salinity bad.

140            CTD Processor: "Bottle oxy looks slightly high compared to
               CTD trace."  flask ok; drawT high, may be due to odd draw
               order w/freons; voltage 1.4 vs 1.0 on nearby flasks; odd
               voltage on runs before and after this one for same flask.
               Oxygen: "Check flask 739 for odd voltage/ O2 values, may be
               bad glass for UV endpoint.  No other analytical reason for
               high O2 value."  PI: "Code oxygen bad."

114            CTD Processor: "Circle on oxy vertical section; ok vs CTD -
               oxy bends out here."  PI: "Salt and oxy slightly low, nuts
               slightly high. Appears as an anomaly on vertical sections.
               Possibly leak, check against CTD salts."  PI: "CTD trace
               indicates feature is real."
101            PI: "Bend in sigma4 at bottom of vertical section plot -
               looks ok."  CTDO Processor: "Upcast; bottom drifts high,
               won't fit correctly."  Code 4010-4028 db CTDO bad.



STATION 056

139            CTDO Processor: "Upcast; surface fit off - bottle
               stops/surface approach."  Code 0-52 db CTDO bad.

122            Sample Log: "Lanyard problem."  No samples were drawn.

121            Sample Log: "Lanyard problem."  No samples were drawn.
               Marine tech log: "22's bottom lanyard caught in 21's top."

101            CTDO Processor: "Upcast; bottom drifts high, won't fit
               correctly."  Code 4470-4630 db CTDO bad.



STATION 057

Cast 1         Sample Log: "Start draw 0445z;end draw about 0645z oxy draw
               on 3-5,8 done after 1-2 and 9-10."

139            CTDO Processor: "Upcast; surface fit off - bottle
               stops/surface approach."  Code 0-44 db CTDO bad.

135            CTD Processor: "Bottle salt slightly high compared to CTD."
               PI: "Salinity looks ok."  Delta-S at 46db is 0.0284.  No
               analytical problem noted.

133            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks ok."

128            Sample Log: "Bottom end cap leak."  No samples were drawn.

113            Delta-S at 2479db is 0.0041.  Autosal took 3 tries before
               getting a good reading.  Footnote salinity bad.

112            Sample Log: "Draw temp for oxy taken just after flask
               pickled."

105            Delta-S at 3753db is 0.0032.  Salinity is out of
               specifications, but usable.  Code salinity questionable.

101            CTDO Processor: "Upcast; bottom drifts high, won't fit
               correctly."  Code 4262-4278 db CTDO bad.



STATION 058

139            CTDO Processor: "Upcast; surface fit off - bottle
               stops/surface approach."  Code 0-42 db CTDO bad.

135            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks ok."

123            Sample Log: "Therm rack lanyard from 24 stuck in top end
               cap."  No samples were drawn.

119            CTD Processor: "Bottle oxy looks slightly high compared to
               CTD trace."  flask/drawT/voltage look ok.  Oxygen:" no
               obvious analytical reason for high O2 value."  PI: "Code
               oxygen bad."

105            PI: "Salt too low - bad analysis?"  CTD Processor: "No notes
               on salt run, definitely low compared to CTD; maybe cap on
               salt sample bottle not sealed properly?  Circle on vertical
               section plot in sigmatheta/sigma4 at 4100m; large/-.046
               delta-S (vs near-0 for other bottles)."  Delta-S at 4156db
               is -0.056.  No analytical problem noted.  PI: "Code salinity
               bad."

101-102        CTDO Processor: "Upcast; bottom drifts high, won't fit
               correctly."  Code 4570-4820 db CTDO bad.



STATION 059

139            CTDO Processor: "Upcast; surface fit off - bottle
               stops/surface approach."  Code 0-42 db CTDO bad.

135            Sample Log: "Open vent."  No samples were drawn.

138            Sample Log: "2-liter sample for bio-optics."

133            Sample Log: "Bottom o-ring."  No samples were drawn.

124            Sample Log: "Therm did not reverse."

123            Sample Log: "Therm rack lanyard caught in top end cap,
               leaked."  No samples were drawn.

101            CTDO Processor: "Upcast; bottom drifts high, won't fit
               correctly."  Code 4218-4312 db CTDO bad.



STATION 060

Cast 1         Sample Log: "No comments."

139            CTDO Processor: "Upcast; surface fit off - bottle
               stops/surface approach."  Code 0-32 db CTDO bad.

135            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks ok."

133            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks ok."

109            CTD Processor: "Inflection on sigmatheta vertical section
               plot at 3100m+ slightly low delta-S (-.008 compared with
               nearby bottles)."  Delta-S at 3191db is -0.0109.  Autosal
               diagnostics indicate there is a problem with this sample.
               PI: "Code salinity bad."

106            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks ok."  No salinity analytical problem
               noted.

101            CTDO Processor: "Upcast; bottom drifts high, won't fit
               correctly."  Code 4316-4466 db CTDO bad.



STATION 061

Cast 1         Marine tech log: "Replaced CTD number 10 with CTD number 4."
               Sample Log: "Start draw 0500; end draw 0645."

135            CTD Processor: "Bottle salt slightly high compared to CTD."
               PI: "Salinity looks ok."  Delta-S at 51db is 0.03.

138            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks ok."  Delta-S at 85db is -0.0292.  No
               analytical problems noted. Salinity appears to agree with
               trend of next couple of stations.

109            Sample Log: "Air vent open."  No samples were drawn.



STATION 062

Cast 1         Sample Log: "Start draw abt. 1050z; end draw abt. 1230z
               TCO2/ALK sampled in same bottle."

133            PI: "High bottle salt in high gradient region, probably ok."
               Nothing unusual noted re: sampling, salt run or this btl.
               CTD Processor: "Bottle salt slightly high compared to CTD."
               PI: "Salinity looks ok."  Delta-S at 126db is 0.1207.  No
               analytical problem noted. Salinity follows trend of Station
               063.

140            See 110 PI PO4 comment. Footnote PO4 questionable.

111-117        See 110 PI PO4 comment. Footnote PO4 questionable.

110            PI: "PO4 appears low by .03uM/kg when comparing theta/PO4 to
               theta/NO3 plots."  Nutrient analyst: "No obvious bubble
               problems; these PO4 values appear to not line up w/NO3.
               Baselines are jagged as if bubble possibly in flow cell for
               entire run, but no bubbles came through.  Footnote PO4
               questionable.



STATION 063

138            Sample Log: "2 liters drawn for bio-optics/CK."



STATION 064

Cast 1         Sample Log: "Start draw 2300z, end draw about 0050z draw
               order for oxy samples also recorded TCO2/ALK drawn in
               sequence, before nuts/salts."

112-115        See 108 PO4 comment; code PO4 bad.

111            Sample Log: "May have had a lanyard in top end cap -
               discovered when cocking rosette for next cast."  salts high,
               oxy/nuts low - assume bottle leaked per above comment Delta-
               S at 2681db is 0.1477.  See 108 PO4 comment; code PO4 bad.
               Footnote bottle leaking, samples bad.

110            Delta-S at 2884db is 0.0035.  Autosal took 3 tries before
               getting a good reading.  CTD Processor: "Bottle oxy looks
               high compared to CTD trace."  flask/drawT/voltage look ok.
               Oxygen: "Voltage slightly low compared to other samples, but
               no other obvious analytical reason for high O2 value."  PI:
               "Code oxygen bad."  See 108 PO4 comment; code PO4 bad.  Code
               salinity questionable, oxygen and PO4 bad.

108-109        PO4 appears low by .06uM/kg when comparing theta/PO4 to
               theta/NO3 plots.  Possible bubble in flow cell.  Footnote
               PO4 (108-115) bad.



STATION 065

Cast 1         Sample Log: "Begin draw 0450z; end draw 0600z."

133            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks ok."

125            Sample Log: "Bottom o-ring."  No samples were drawn.



STATION 066

Cast 1         Sample Log: "No box ids written down start draw about 1015z;
               end draw 1151z TCO2/ALK drawn in same bottle all oxys
               sampled immediately after freon sampled."  Oxygen: "No
               second shake on samples added MnCl2 and NaOH/NaI before this
               station."

133            CTD Processor: "Bottle salt slightly high compared to CTD."
               PI: "Salinity looks ok."  Delta-S at 155db is 0.03.  No
               analytical problem noted.

112            CTD Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 2629db is 0.0057.  Autosal took 3 tries before
               getting a good reading.  This would account for the higher
               salinity Code salinity bad.



STATION 067

139            Sample Log: "Possible oxy flask mixup near end: drew extra
               samples from 39 in case 35 drawn 2x and 39 was missed."

140            CTD Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 1920db is 0.0054.  Autosal took 4 tries to get
               readings to agree, this is usually an indication that the
               salinity would be bad.  Footnote salinity bad.
114            Sample Log: "Tripped on the fly, do not sample."

111            inflection in sigmatheta vertical section at 2900-m.
               slightly high delta-S (.006) compared with nearby bottles.
               Could possible be a drawing error with bottle 12.  Delta-S
               at 2881db is 0.0062.  PI: "Footnote salinity bad."



STATION 068

Cast 1         Sample Log: "Single 500ml samples taken for TCO2/ALK."

139            Sample Log: "Bottle (39) did not trip."

135            See 131 bottle tripping comment; code bottle did not trip
               correctly, data is acceptable.

138            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks ok."  Delta-S at 77db is -0.0268.
               Variation in CTD salinity uptrace at this sampling point,
               because the package has stopped to trip a bottle.  Value is
               probably good on its own merit just not to compare with the
               bottle data.  CTD Processor: "Note shiproll 'noise' in
               conductivity signal-actually seeing different water in
               thermocline."  No CTDO is calculated because the CTD
               Salinity is coded bad.  See 131 bottle tripping comment;
               code bottle did not trip correctly, CTD salinity bad and CTD
               Oxygen lost; bottle data is acceptable.

133            See 131 bottle tripping comment; code bottle did not trip
               correctly, data is acceptable.

141            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks ok."  See 131 bottle tripping comment;
               code bottle did not trip correctly, data is acceptable.

131            It appears that a bottle (31) should have been tripped at
               400db and it was not. There should have been 36 bottles
               tripped and there were only 35. Therefore, bottles 31, 41,
               33, 38, and 35 were all tripped one level shallower than
               originally intended and bottle 39 was not tripped at all.
               Code bottle did not trip correctly, but all data is
               acceptable as pressure reassigned.

125            Sample Log: " therm lanyard from 24 caught under top cap."
               No samples were drawn.



STATION 069

Cast 1         Sample Log: "Start draw 0540z; end draw 0700z."

121            Sample Log: "Noticeable leak, lanyard from 20 in top end
               cap."  No samples were drawn.



STATION 070

131            Sample Log: "Bottom o-ring/cap not seated."  No samples were
               drawn.  Marine tech log:  "Top end cap not seated."



STATION 071

131            Sample log/Marine tech log: "Bottom o-ring unseated, crack
               in cap."  No samples were drawn.

111            Delta-S at 3550db is 0.1545.  Nutrients: "Sil value looks
               very low, reran, value appears real."  Plot shows ALL nut
               values are off.  Oxy low/salt high compared to CTD - bottle
               mistripped?  Footnote bottle leaking, samples bad.



STATION 072

Cast 1         Sample Log: "Start draw 0340z/end draw 1520z."

138-139        CTDO Processor: "Low surface raw oxy signal, fit looks low."
               Code 0-90 db CTDO bad.
135            Sample Log: "Leak in top end cap, o-ring problem."  No
               samples were drawn.  See 138-139 CTDO comment; code CTDO
               bad.

105            CTD Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 3905db is 0.0047.  Autosal took 3 tries before
               getting a good reading.  Footnote salinity bad.



STATION 073

Cast 1         Sample Log: "Start draw 0950z/end draw ?."

102-116        See 101 PI PO4 comment. Data OK now.

101            PI: "PO4 appears 0.06uM/kg too low for deep water relative
               to NO3 on PO4 and NO3 vs theta plots."  Nutrient analyst:
               "Stds high for this run, data ok after stds adjusted."  Data
               OK now.



STATION 074

Cast 1         salts: labT jumped 20.5 to 25.0 mid-run when a/c turned off
               returned to 22.2 by end-run.  +8 drift. Rerun?  (bath was
               still cycling during the temp. change).  salts vs CTD - look
               normal, ok as-is, rerun not necessary.  Sample Log: "500 ml
               samples for Total CO2, includes TALK."

122            Sample Log: "Bottle leaked due to suspect bottom o-ring
               seal."  No samples were drawn.  Marine tech log: "Lanyard
               hung up."

105            CTD Processor: "Bottle oxy high compared to CTD (down or up
               trace)."  Oxygen Analyst: "No obvious analytical problem."
               PI: "Code oxygen bad."



STATION 075

126            Sample Log: "O2 sample from second draw, bad pickling on 1st
               try."



STATION 076

Cast 1         Sample Log: "Start draw 0727z; end draw ?."  Salt Box L had
               consistent problems with loose salt bottle inserts.  Box
               "retired" after station 109.

139            CTDO Processor: "Slow start at surface, signal looks low."
               Code 0-50 db CTDO bad.

124            Analyst error running sample, not enough to rerun, no data.
               Footnote nutrients lost.

116            PI: "SIL appears too high; all nuts from bottles 15/16 are
               identical, suggesting that sample 16 was misdrawn from
               bottle 15."  Nutrient analyst: "No obvious analytical
               error."  PI: "Code nutrients bad."

113            CTD Processor: "Salt slightly high relative to CTD."  Salts:
               "3 flushes to get 2 readings, no other analysis problems."
               Delta-S at 2502db is 0.008.  PI: "Code salinity bad."

103            Data Processor: "Salt slightly high relative to CTD."
               Salts: "6 flushes to get 2 readings due to
               unstable/decreasing labT."  Delta-S at 4287db is 0.006.
               Footnote salinity bad.

101-103        Salts: "Abort 1st run after sample 3: room T/cell-fill
               problems: asal 48-266/24 degC. Room T dropped 1 degC in
               first 3 samples. Reran entire box on asal 48-263, (preset at
               21 degC for several days)."  Use 1st run values: end
               worm/sample. Values look ok.STATION 077

139            CO log/Sample Log: "Bottle (39) not tripped/never
               triggered."

135            CO log: "CTD trip info is not from time of trip, but from
               failed trip attempt several minutes before.  Bottle was
               triggered directly from pylon deck unit."  Sample Log:
               "Extra nuts sample taken on number 35."  CTDO Processor:
               "Slow start at surface, signal looks low."  Code 0-60 db
               CTDO bad.  See 137 tripping comment, code bottle did not
               trip as scheduled, and CTDO bad.

138            See 137 tripping comment, code bottle did not trip as
               scheduled.

133            See 137 tripping comment, code bottle did not trip as
               scheduled.

141            Oxygen: "Cardboard in water bath around flask during
               analysis."  Oxygen appears to be okay.  See 137 tripping
               comment, code bottle did not trip as scheduled.

131            See 137 tripping comment, code bottle did not trip as
               scheduled.

137            Two levels were skipped, 461db and 385db.  Code bottles (37,
               31, 41, 33, 38, and 35) did not trip as scheduled, data
               appears acceptable as pressures are assigned, unless
               otherwise noted.

129            CO log: "Bottle (29) not tripped - bad confirm, skipped over
               position using pylon diagnostics window."

111            Sample Log: "Lanyard hung up in end cap."  No samples were
               drawn.



STATION 078

Cast 1         Sample Log: "500 ml sample taken for TCO2 - includes TALK
               aliquot start draw ~2100Z/end ~2245Z (O2 drawn after freon)
               draw order 40-1,36-19 (40 surface, 19 bottom)."  PI: "PO4
               appears slightly high compared to NO3 on PO4 and NO3 vs
               theta plots."  PI: "Ignore, less than 1% error."

125            CTD Processor: "Bottle oxy slightly high compared to CTD."
               Oxygen: "No obvious analytical problem."  PI: "Oxygen too
               high relative to CTD and does not follow oxygen and nutrient
               vertical trend. Code as 4."

113            Sample Log: "Top oring problem."  No samples were drawn.



STATION 079

Cast 1         Sample Log: " draw time starts 0402z, ends 0520z."  CTD
               Processor: "Entire profile of bottle salts low relative to
               CTD."  Changing area, could be okay. Standby number changed
               by 5 units, this would affect the salinity (if incorrect) by
               0.0005 and does not account for the difference here.
               Footnote salinity questionable.

139            CTDO Processor: "Slow start at surface, signal looks low."
               Code 0-22 db CTDO bad.  See Cast 1 salinity comment,
               footnote salinity questionable.

135            See Cast 1 salinity comment, footnote salinity questionable.

138            See Cast 1 salinity comment, footnote salinity questionable.

133            Autosal took 3 tries before getting a good reading.  Delta-S
               at 214db is -0.0045.  Footnote salinity bad.

141            See Cast 1 salinity comment, footnote salinity questionable.

131            See Cast 1 salinity comment, footnote salinity questionable.

137            See Cast 1 salinity comment, footnote salinity questionable.

129            See Cast 1 salinity comment, footnote salinity questionable.

128            Autosal took 3 tries before getting a good reading.  Delta-S
               at 697db is -0.0015.  Footnote salinity bad.

124-127        See Cast 1 salinity comment, footnote salinity questionable.

123            Delta-S at 1252db is -0.0083.  See Cast 1 salinity comment,
               footnote salinity questionable.

122            See Cast 1 salinity comment, footnote salinity questionable.

121            Delta-S at 1499db is -0.006.  Autosal took 3 tries before
               getting a good reading.  Footnote salinity bad.

119-120        See Cast 1 salinity comment, footnote salinity questionable.

140            See Cast 1 salinity comment, footnote salinity questionable.

117            salts: "Manual entry - cell fill problem, ran out of
               sample."  Delta-S at 2097db is -0.0055.  Autosal took 3
               tries before getting a good reading.  Footnote salinity bad.

116            See Cast 1 salinity comment, footnote salinity questionable.

115            Delta-S at 2376db is -0.0037.  Autosal took 4 tries before
               getting a good reading.  Footnote salinity bad.

114            Delta-S at 2503db is -0.0051.  See Cast 1 salinity comment,
               footnote salinity questionable.

113            Delta-S at 2654db is -0.0034.  See Cast 1 salinity comment,
               footnote salinity questionable.

112            See Cast 1 salinity comment, footnote salinity questionable.

111            Delta-S at 3011db is -0.0034.  Autosal took 3 tries before
               getting a good reading.  Footnote salinity bad.

110            Delta-S at 3214db is -0.0061.  See Cast 1 salinity comment,
               footnote salinity questionable.

109            Delta-S at 3392db is -0.0049.  Autosal took 3 tries before
               getting a good reading.  Footnote salinity bad.

108            Delta-S at 3469db is -0.0064.  See Cast 1 salinity comment,
               footnote salinity questionable.

107            Delta-S at 3648db is -0.0049.  See Cast 1 salinity comment,
               footnote salinity questionable.

106            See Cast 1 salinity comment, footnote salinity questionable.

105            Delta-S at 4057db is -0.0039.  See Cast 1 salinity comment,
               footnote salinity questionable.

104            See Cast 1 salinity comment, footnote salinity questionable.

103            Delta-S at 4467db is -0.0047.  See Cast 1 salinity comment,
               footnote salinity questionable.

102            Delta-S at 4672db is -0.0036.  See Cast 1 salinity comment,
               footnote salinity questionable.

101            See Cast 1 salinity comment, footnote salinity questionable.

STATION 080

Cast 1         Sample Log: "Sampling order followed freon more or less see
               sample log for draw order.  Drawing started at ~1030Z, and
               ended ~1210Z."  CTD Processor: "Entire profile of bottle
               salts low relative to CTD."  Changing area, could be okay.
               Standby number changed by 4 units from the next run, this
               would affect the salinity (if incorrect) by 0.0004, which
               would make little effect.  Suspect this is operator
               inexperience and salinity is just not within specs, not a
               problem with the bottles. There were many multiple readings
               by the salinometer.  Footnote salinity questionable.
               Console Ops: "Two bottles were open at surface check, one
               was subsequently tripped making only 35 bottles for this
               cast.  Reviewed tripping file and found that bottle 26 did
               not trip as intended, but did trip later."  Footnote bottles
               26-29,37,31,41,33,38, and 35 did not trip as scheduled.
               Bottles and data are correct at reassigned pressures.

139            CO log: "Bottle (39) not tripped/never triggered."  There
               was a tripping problem, and there will be only 35 bottles.

135            CTDO Processor: "2-min. stop at 28-32db distorted surface
               fit."  Code 0-32 db CTDO bad.  See Cast 1 bottle and
               salinity comment.  Footnote bottle did not trip as
               scheduled; CTDO bad, and salinity questionable.

138            See Cast 1 bottle and salinity comments.  Code bottle did
               not trip as scheduled and salinity questionable.

133            See Cast 1 bottle and salinity comments.  Code bottle did
               not trip as scheduled and salinity questionable.

141            See Cast 1 bottle and salinity comments.  Code bottle did
               not trip as scheduled and salinity questionable.

131            Sample Log: "Top o-ring problem."  Marine tech log: "Top end
               cap cracked."  No samples were drawn.

137            See Cast 1 bottle and salinity comments.  Code bottle did
               not trip as scheduled and salinity questionable.

129            Delta-S at 380db is -0.0031.  Autosal took 4 tries before
               getting a good reading.  Footnote salinity bad.

128            Delta-S at 455db is -0.0027.  Autosal took 3 tries before
               getting a good reading.  Footnote salinity bad.

124-127        See Cast 1 salinity comment; footnote salinity questionable.

123            Delta-S at 1070db is -0.0041.  Autosal took 4 tries before
               getting a good reading.  Footnote salinity bad.

122            See Cast 1 salinity comment; footnote salinity questionable.

121            Delta-S at 1374db is -0.0047.  Autosal took 4 tries before
               getting a good reading.  Footnote salinity bad.

120            See Cast 1 salinity comment; footnote salinity questionable.

119            Delta-S at 1615db is -0.0008.  Autosal took 4 tries before
               getting a good reading.  Footnote salinity bad.

140            See Cast 1 salinity comment; footnote salinity questionable.

117            See Cast 1 salinity comment; footnote salinity questionable.

116            Delta-S at 1969db is -0.0062.  Autosal took 5 tries before
               getting a good reading.  Footnote salinity bad.

115            Delta-S at 2071db is -0.0047.  See Cast 1 salinity comment;
               footnote salinity questionable.


114            Delta-S at 2173db is -0.0056.  See Cast 1 salinity comment;
               footnote salinity questionable.

112-113        See Cast 1 salinity comment; footnote salinity questionable.

111            Sample Log: "Lanyard in top lid."  No samples were drawn.

110            Delta-S at 2705db is -0.0027.  Autosal took 3 tries before
               getting a good reading.  Code salinity bad.

109            Delta-S at 2832db is -0.0062.  See Cast 1 salinity comment;
               footnote salinity questionable.

108            Nuts: "Nut tubes 8 & 9 were in reverse order in the nuts
               rack after sampling."  Nutrients are acceptable.  Delta-S at
               2985db is -0.0044.  See Cast 1 salinity comment; footnote
               salinity questionable.

107            See Cast 1 salinity comment; footnote salinity questionable.

106            Sample Log: "Very small bubble in freon syringe 5569."  See
               Cast 1 salinity comment; footnote salinity questionable.

104-105        See Cast 1 salinity comment; footnote salinity questionable.

103            Delta-S at 3698db is -0.0037.  Autosal took 3 tries before
               getting a good reading.  Code salinity bad.

101-102        See Cast 1 salinity comment; footnote salinity questionable.



STATION 081

Cast 1         Sample Log: "No comments."



STATION 082

Cast 1         Sample Log: "50 ml aliquot taken for TCO2 to include TALK."

138            Sample Log: "Bottom end cap did not seat well."  Oxygen
               appears slightly high compared with adjoining stations.
               However, it does appear to agree with CTDO. Data are
               acceptable.

125            Sample Log: "Lanyard in top cap."  No samples were drawn.

112            Sample Log: "Bottom o-ring problems."  No samples were
               drawn.



STATION 083

Cast 1         Sample Log: "Drawing started ~0600Z, ended ~0725Z."  Salt
               Box L prone to loose salt bottle inserts - box "retired"
               after station 109.

119            PI: "Salt value high relative to CTD."  Salts: "3 unit diffc
               in C-ratio readings, 3 flushes for 2 readings."  Delta-S at
               2092db is 0.009.  Footnote salinity bad.

107            PI: "Salt value slightly high relative to CTD."  No obvious
               analysis problem.  Delta-S at 3953db is 0.0053.  Footnote
               salinity questionable.

102            Delta-S at 4774db is 0.0033.  Autosal took 3 tries before
               getting a good reading.  Footnote salinity bad.



STATION 084

Cast 1         Sample Log: "Drawing started abt. 1145z. Exact draw order
               within oxy, nuts, salts sampling also recorded."  Analyst:
               New cd column installed, samples run before column stable."
               Footnote NO3 questionable.  Comments from PDR watchstander:
               "pdr bottom depth dropped during upcast."


139            See Cast 1 nutrient comments; code NO3 questionable.

135            Salinity analyst: "Low sample volume."  Salt value same as
               Sta 77 bottle 35, last time box P used and low sample volume
               = perhaps sample was never drawn.  Salinity not drawn, error
               in sampling.  See Cast 1 nutrient comments; code NO3
               questionable.

138            See Cast 1 nutrient comments; code NO3 questionable.

133            See Cast 1 nutrient comments; code NO3 questionable.

141            See Cast 1 nutrient comments; code NO3 questionable.

131            See Cast 1 nutrient comments; code NO3 questionable.

137            See Cast 1 nutrient comments; code NO3 questionable.

119-129        See Cast 1 nutrient comments; code NO3 questionable.

140            See Cast 1 nutrient comments; code NO3 questionable.

101-117        See Cast 1 nutrient comments; code NO3 questionable.



STATION 085

Cast 1         Sample Log: "Start draw 1855z/end draw 1925z."  Nutrient
               Analyst: "Samples run before new cd column was stable."
               Footnote NO3 questionable.

139            See Cast 1 nutrient comments; code NO3 questionable.

135            CTDO Processor: "Surface bottle looks high on overlays
               compared to nearby casts."  No analytical problem noted.
               Code O2 questionable.  See Cast 1 nutrient comments; code
               NO3 questionable.

138            See Cast 1 nutrient comments; code NO3 questionable.

133            See Cast 1 nutrient comments; code NO3 questionable.

141            See Cast 1 nutrient comments; code NO3 questionable.

131            See Cast 1 nutrient comments; code NO3 questionable.

137            See Cast 1 nutrient comments; code NO3 questionable.

119-129        See Cast 1 nutrient comments; code NO3 questionable.

140            See Cast 1 nutrient comments; code NO3 questionable.

101-117        See Cast 1 nutrient comments; code NO3 questionable.



STATION 086

Cast 1         Sample Log: "Start draw at 2350z 500ml volumes taken for
               TCO2/inc. TALK aliquot."



STATION 087

Cast 1         Sample Log: "Draw started abt 0545z; ended abt 0730z."



STATION 088

Cast 1         Marine tech log: "Pinger died? very slow ping on deck upon
               recovery."

139            Sample Log: "Hg thermometer check on oxy draw temp - same T
               leaks/bottom o-ring (or upper o-ring?)  oxy/nuts/salts
               apparently drawn anyways."  PI: "Although bottle leaked from
               bottom when vent opened, samples are ok since this was a
               surface bottle."


138            Sample Log: "Leaks, top wasn't seated - o-ring?."  No
               samples were drawn.

123            Sample Log: "Open vent."  No samples were drawn.

122            CTD Processor: "Bottle oxy high compared to CTD trace; maybe
               dup draw from 120."  PI: "Code oxygen bad."  Sample Log: "Hg
               thermometer check on oxy draw temp - same T."  Footnote
               oxygen bad.

120-122        Oxygen: "Flask order different in box than on sample log
               used flask/drawT on log with sample number on log. Number
               off flask used during analysis; oxy samples run out of box
               sequence, but 120-122 definitely mixed up."

114            Sample Log: "Hg thermometer check on oxy draw temp - same
               T."

113            PI: "PO4 appears slightly high - also seen in NO3/ignore."
               Nutrient analyst: "No obvious analytical error."

108            Sample Log: "Hg thermometer check on oxy draw temp - same
               T."

106            PI: "Salt slightly high."  No obvious analysis problem.
               Delta-S at 4007db is 0.0038.  Footnote salinity
               questionable.

102            Sample Log: "Hg thermometer check on oxy draw temp - same
               T."



STATION 089

135            CTD Processor: "Bottle salt slightly high compared to CTD."
               PI: "Salinity looks ok."

133            Sample Log: "Tiny bubble in oxy flask 1196 after pickling."
               PI: "Low salt relative to CTD."  No obvious analysis
               problem.  PI: "Salinity probably okay, no flag."

131            Shipboard Data Processor: "Low salt relative to CTD."  No
               obvious analysis problem.  PI: "Salinity probably okay, no
               flag."



STATION 090

Cast 1         Sample Log: "No comments."

139            CTDO Processor: "Low surface raw oxy signal, fit looks low."
               Code 0-88 db CTDO bad.

133            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks ok."



STATION 091

Cast 1         Sample Log: "No comments."

139            CTDO Processor: "Slow start at surface, signal looks low."
               Code 0-92 db CTDO bad.

116            Salinity: "Sample container dropped/broke just before
               analysis."  Salinity not reported.

109            CTD Processor: "Bottle oxy slightly high compared with CTD
               trace."  Oxygen: "No obvious analytical problem, flask will
               be recalibrated at ODF. The problem is a loose fit between
               flask and stopper, flask number 1356."  Recalibration will
               not fix the problem. This flask was also used on Station
               093, 095 and 104 where the results agreed with CTDO and
               adjoining stations. On Station 097 and 099 The oxygen data
               was coded bad. After Station 104, the flask was resigned.
               Footnote oxygen bad.



STATION 092

Cast 1         Sample Log: "Drawing order within oxy/nuts/salts samples
               noted."

139            CTDO Processor: "Low surface raw oxy signal, fit looks low."
               Code 0-80 db CTDO bad.

135            See 139 CTDO comment; code CTDO bad.

127            CTD Processor: "Bottle oxy high compared to CTD trace -
               matches value for 128.  Possible misdraw."  Footnote oxygen
               bad.

125            Bottle oxy high compared to CTD trace - matches value for
               123.  On Sample Log, flask 1197 originally written in slot
               for bottle 23, then erased/replaced with flask 1096. Assume
               both drawn from 23.  Footnote oxygen bad.

120            PI: "O2 slightly high."  Footnote O2 questionable.



STATION 093

139            CTDO Processor: "Low surface raw oxy signal, fit looks low."
               Code 0-74 db CTDO bad.

135            See 139 CTDO comment; code CTDO bad.

108            CTD Processor: "Bottle oxy looks high."  PI: "Bottle O2 ok."

105            CTD Processor: "Bottle oxy high compared with CTD trace."
               Oxygen: "Also does not follow nutrient trend."  PI: "Code
               oxygen bad."

103            CTD Processor: "Bottle oxy slightly low compared to CTD
               trace."  Oxygen: "No obvious analytical problem."  PI: "Code
               oxygen bad."



STATION 094

Cast 1         Sample Log: "Draw order altered to accommodate Freons."

139            Marine tech log: "Dripping @ bottom o-ring."  PI: "Sample
               dripped slowly at bottom o-ring, but should be ok since it
               is surface sample."  CTDO Processor: "Low surface raw oxy
               signal, fit looks low."  Code 0-74 db CTDO bad.

135            See 139 CTDO comment; code CTDO bad.

111            Marine tech log: "Lanyard hangup, no sample."  No samples
               were drawn.

103            Sample Log: "Nuts drawn before TALK & TCO2."



STATION 095

Cast 1         Sample Log: "No comments."

139            CTDO Processor: "Low surface raw oxy signal, fit looks low."
               Code 0-80 db CTDO bad.



STATION 096

Cast 1         Sample Log: "No comments."

139            CTDO Processor: "Low surface raw oxy signal, fit looks low."
               Code 0-70 db CTDO bad.

135            See 139 CTDO comments; code CTDO bad.

104            CTD Processor: "Bottle oxy slightly low compared with CTD
               trace."  Oxygen: "No obvious analytical problem."  PI: "Flag
               oxygen as questionable."



STATION 097

Cast 1         Sample Log: "Sample cop sampling oxy and recording numbers."
               PI: "PO4: There appears to be a shift in calibration between
               samples 6 and 7. PO4 vs theta does not agree with NO3 vs
               theta."  Nutrient analyst: "Dipper hung up during run.
               Disruption in run may have affected ending PO4 stds and
               drift calculations."  Footnote PO4 bad.

139            CTDO Processor: "Low surface raw oxy signal, fit looks low."
               Code 0-72 db CTDO bad.  See Cast 1 PO4 comment; code PO4
               bad.

135            See Cast 1 PO4 comment; code PO4 bad.

138            See Cast 1 PO4 comment; code PO4 bad.

133            See Cast 1 PO4 comment; code PO4 bad.

141            See Cast 1 PO4 comment; code PO4 bad.

131            See Cast 1 PO4 comment; code PO4 bad.

137            See Cast 1 PO4 comment; code PO4 bad.

119-129        See Cast 1 PO4 comment; code PO4 bad.

140            See Cast 1 PO4 comment; code PO4 bad.

117            PI: "O2 high."  No oxygen analytical problem noted.  See
               Cast 1 PO4 comment.  Footnote oxygen questionable and PO4
               bad.

110-116        See Cast 1 PO4 comment; code PO4 bad.

109            Oxygen: "Big air bubble in sample."  Bottle oxy high
               compared to CTD (3140 db) trace.  Box 10/ flask 1356.
               Oxygen: see stas 91, 99 - same problem.  Oxygen: "Flask
               1356, loose fit between flask and stopper."  See Cast 1 PO4
               comment.  Footnote oxygen and PO4 bad.

102-108        See Cast 1 PO4 comment; code PO4 bad.

101            CTD Processor: "Bottle oxy looks high compared to CTD
               trace."  Oxygen: "SF6 draw before oxy; no obvious analytical
               problem."  See Cast 1 PO4 comment.  Footnote oxygen and PO4
               bad.



STATION 098

Cast 1         Sample Log: "TCO2 and ALK samples from single draw, one
               bottle for both."

139            CTDO Processor: "Low surface raw oxy signal, fit looks low."
               Code 0-70 db CTDO bad.

138            Sample Log: "Air leak."  No samples were drawn.

129            Sample Log: "Bad seal upper cap."  No samples were drawn.

128            Sample Log: "Bottom endcap askew, half-cocked."  No samples
               were drawn.

113            Sample Log: "Top o-ring problem."  No samples were drawn.

112            Sample Log: "Bottom o-ring unseated."  No samples were
               drawn.



STATION 099

Cast 1         Sample Log: "No comments."  Comments from PDR watchstander:
               "2 strong bottoms on pdr."


109            CTD Processor: "Bottle oxy slightly high compared with CTD
               oxy (2985 db)."  Oxygen box 10, flask 1356, see stas 91, 97,
               same problem.  Oxygen: "Flask 1356 has loose fit of flask
               and stopper.  No other obvious analytical problems."
               Footnote oxygen bad.



STATION 100

139            CTDO Processor: "Low surface raw oxy signal, fit looks low;
               no bottle oxy at 104db bottle."  Code 0-104 db CTDO bad.

138            Sample Log: "Leaker."  No samples were drawn.  See 139 CTD
               Oxygen comment; code CTDO bad.

129            Sample Log: "Leaker."  No samples were drawn.

111            CTD Processor: "Bottle oxy slightly hi compared to CTD oxy
               trace."  Oxygen: "No analytical problem."  PI: "Bottle O2
               OK, follows nutrient trend."



STATION 101

139            CTDO Processor: "Slow start at surface, signal looks low."
               Code 0-100 db CTDO bad.

135            See 139 CTDO comment; code CTDO bad.

120            Sample Log: "Oxy flasks for samples 20 & 21 were in reverse
               order in the flask box. Based on the draw temps, the order
               in the box may be correct."  Oxygen is acceptable.



STATION 102

Cast 1         Sample Log: "TCO3 and ALK - one bottle  draw for both."  CTD
               Processor: "Entire profile of bottle salts low relative to
               CTD."  No obvious reason for all salts to be low.  Salinity
               agrees with adjoining stations.

139            CTDO Processor: "Low surface raw oxy signal, fit looks low."
               Code 0-90 db CTDO bad.

135            See 139 CTDO comment; code CTDO bad.

138            See 139 CTDO comment; code CTDO bad.

109            Salts: "Manual entry: cell fill problems, insufficient
               sample."  Delta-S at 3240db is -0.0047.  Footnote salinity
               bad.

103            CTD Processor: "Bottle salt low relative to CTD."  No
               obvious analysis problem.  Delta-S at 4160db is -0.0068.
               Low compared with adjoining stations, could be a drawing
               error.  Footnote salinity bad.



STATION 103

139            CTDO Processor: "Slow start at surface, signal looks low."
               Code 0-94 db CTDO bad.

135            Sample Log: "Bad bottom seal."  No samples were drawn.  See
               139 CTD comment; code CTDO bad.

138            Sample Log: "Lanyard from 41 in top end cap."  No samples
               were drawn.

107            Data Processor: "Bottle salt high relative to CTD."  No
               obvious analysis problem.  Box L had history of loose salt
               bottle inserts, box "retired" after station 109.  Delta-S at
               3470db is 0.0088.  Footnote salinity bad.

103            Salts: "Insufficient sample in bottle 3: was sample
               collected?"  Footnote salinity lost.



STATION 104

Cast 1         Sample Log: "No comments."

139            CTDO Processor: "Slow start at surface, signal looks low."
               Code 0-100 db (139, 135 and 138) CTDO bad.

135            See 139 CTDO comment, code CTDO bad.

138            CTDO Processor: "Bottle at 99db is low: this is max area,
               and value matches deeper and shallower bottles, but not the
               shape of nearby casts or CTD data at this level.  The draw T
               matches that of bottle (33) at 175db and is 3 degrees lower
               than in-situ temp for 138.  Suspect dup draw of 175db bottle
               is the value we see here."  See 139 CTDO comment.  Code CTDO
               bad and bottle oxygen bad.



STATION 105

139            CTDO Processor: "Low surface raw oxy signal, fit looks low."
               Code 0-70 db CTDO bad.

135            See 139 CTDO comment; code CTDO bad.

133            Sample Log: "Lanyard hung up in top end cap."  No samples
               were drawn.

137            Sample Log: "Suspect leak from bottom endcap."  PI: "Samples
               appear to be ok despite suspected leak."

127            PI: "Bottle salt low relative to CTD; looks ok."  4-unit
               diffc between 2 c-ratio readings; otherwise no obvious
               analysis problem.

121            Sample Log: "Lanyard hung up in top end cap."  No samples
               were drawn.



STATION 106

Cast 1         Sample Log: "TCO2/ALK drawn together in one bottle."

139            CTDO Processor: "Low surface raw oxy signal, fit looks low."
               Code 0-78 db CTDO bad.

135            See 139 CTDO comment; code CTDO bad.

138            Sample Log: "Nuts/salts drawn before TCO2 could be drawn."
               salts: small sample volume: was sample taken?  No sample.
               Draw error.  No nutrients drawn.  See 139 CTDO comment; code
               CTDO bad, salinity bad, nutrients not drawn.

101            Delta-S at 4146db is 0.0037.  No analytical problem noted.
               Footnote salinity questionable.



STATION 107

139            CTDO Processor: "Slow start at surface, signal looks low."
               Code 0-72 db CTDO bad.

135            See 139 CTDO comment; code CTDO bad.

131            Sample Log: "Oxy flask has small air bubble."  Oxygen is
               acceptable.

128            PI: "Salt low relative to CTD, probably ok, no flag."  No
               obvious analysis problem.  Delta-S at 556db is -0.011.

101            Sample Log: "Oxy redrawn because of air bubble; drawT from
               second draw."



STATION 108

Cast 1         CO log: "Aborted cast (1) at surface down due to knot in tag
               line."

233            Sample Log: "Bottle has small leak, sampled anyway."  Oxygen
               as well as other data are acceptable.

228            Sample Log: "Top o-ring."  No samples were drawn.

204            CTD Processor: "Bottle oxy slightly high compared to CTD
               trace."  Oxygen: "No obvious analytical problem."  PI: "Flag
               oxygen as questionable, may be usable."



STATION 109

Cast 1         Salts: "8x3 tries on various salt samples during run
               (usually 2)."  Sample Log: "500ml sample taken for
               TCO2/includes TALK aliquot."  Salt box L had a history of
               loose bottle inserts, box L "retired" after this cast.

117            Oxygen: "Air bubble in sample."  CTD Processor: "Bottle oxy
               high compared to CTD trace."  Footnote oxygen bad.

116            CTD Processor: "Bottle oxy low compared to CTD trace."
               Oxygen: "No obvious analytical problem."  PI: "Footnote
               oxygen bad."

114            PI: "Salt slightly high relative to CTD."  no obvious
               analysis problem/see box L note above.  PI: "Leave as is,
               probably ok."  Delta-S at 2257db is 0.0053.

111            Delta-S at 2653db is 0.0594.  Bottle oxy slightly low
               compared to CTD trace.  Oxygen: "No obvious analytical
               problem."  Footnote bottle leaking, samples bad.

110-111        nuts appear to be reversed for these samples (see above
               note).  this would mean that low nuts value for 110 is
               assoc. w/high salt/low oxy on 111.  This is consistent with
               bottle 11 leaking.

110            Switched the way it was suppose to be, tube 10 sampled from
               bottle 10, and tube 11 sampled from bottle 11.  Nutrients
               are acceptable with this arrangement.  See 110-111 nutrient
               comment.

103            Delta-S at 3713db is 0.0051.  PI: "Salt slightly high
               relative to CTD."  No obvious analysis problem/see box L
               note above.  PI: "Leave as is, probably ok."

102            Delta-S at 3856db is 0.0032.  No analytical problem noted.
               Footnote salinity questionable.



STATION 110

Cast 1         Sample Log: "No Comment."

141            Oxygen: "Bad endpoint, crud in water bath, low voltage
               (0.987)."  Footnote oxygen bad.



STATION 111

133            Sample Log: "Top o-ring problems, water leak, bad seal."  No
               samples were drawn.



STATION 112

128            Delta-S at 708db is 0.4667.  Salt/oxy/sil high, NO3/PO4 low
               - same as deeper/bottle 111 values probable mistrip.  PI:
               "All parameters way out of line, bottle apparently
               pretripped."  Footnote bottle leaking, samples bad.STATION 113

Cast 1         No comments on Sample Log.



STATION 114

105-107        Sample Log: "O2 flasks 1354(position number 5) and
               975(position number 7) were switched in the sample box."
               Oxygen is acceptable.

102            CO log: "Bottle fired on the fly just above bottom trip/op.
               error."  Data are acceptable.



STATION 115

Cast 1         No comments on Sample Log.



STATION 116

138            Sample Log: "Upper end cap not seated."  No samples were
               drawn.



STATION 117

111            Sample Log: "Slow leak."  No samples were drawn.



STATION 118

126            Sample Log: "Nuts and salts drawn before TCO2 & ALK."

114            CO log/Sample Log: "Open bottle, no trip even though
               confirmed ok."  No samples.

102-110        See 101 PI NO3 comment. Leave data as is, no code.

101            PI: "NO3 appears slightly low in comparing NO3/theta to
               PO4/theta plots for samples 01 to 10."  Nutrient analyst:
               "No obvious analytical error."



STATION 119

Cast 1         No comments on Sample Log.



STATION 120

141            Sample Log: "Leaks on bottom, collected anyway."  Oxygen as
               well as other data are acceptable.

117            Sample Log: "Lanyard in top end cap."  No samples were
               drawn.

110            CTD Processor: "Bottle oxy slightly higher than CTD."  Very
               slight.  Oxygen is a slightly higher than Station 121.
               Oxygen is acceptable.



STATION 121

Cast 1         Sample Log: "No comments."

139            CTDO Processor: "Slow start at surface, signal looks low."
               Code 0-94 db CTDO bad.

135            See 139 CTDO comment; code CTDO bad.

138            CTD Processor: "Bottle salt much too low."  Nothing apparent
               on salt run or logs; does not match salt value from previous
               time salt box Y used.  Delta-S at 95db is -0.2773.
               Variation in CTD salinity uptrace at this sampling point,
               because the package has stopped to trip a bottle.  Salinity
               appears low compared with adjacent stations vs.  theta, but
               sampling was not performed at this potential temperature.
               PI: "Flag salinity bad."


133            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks ok."  Agrees with adjoining station.
               Delta-S at 206db is -0.0308.  CTD salinity is acceptable.
               CTD Processor: "Note back down in pressure-not spiking, but
               into top thermocline. CTD salinity is acceptable."

108            Oxygen: "Air bubble in sample."  CTD Processor: "Bottle oxy
               slightly high relative to CTD trace; also bubble."  Footnote
               oxygen bad.



STATION 122

Cast 1         CTD Processor: "Bottle salts high compared to CTD trace."
               The salinities may be 0.001 higher than adjoining stations,
               suspect this is just a noise level and does not indicate a
               problem with the bottles.

121            Sample Log: "Oxy T from 2nd draw - NaOH dispenser problem
               1st."

115-116        Nutrient: "Bubble stuck in flowcell, lost NO2 data."

111            Sample Log: "Oxy flask 961 has hair line crack redraw oxygen
               in flask 1435 (w/questionable labcal)."  Oxygen: "Flask 1435
               had air bubble."  Value high.  Used flask 961 value, more
               in-line than flask 1435.  Flask was recalibrated and oxygen
               data is acceptable.



STATION 123

Cast 1         Marine tech log: "4 styrofoam cups taped to rosette near
               bottle number 1. Okayed by PI. He will sample number 1 to
               see if it causes any contamination."

138            CTD Processor: "Bottle salt slightly high compared to CTD."
               PI: "Looks ok."  Delta-S at 206db is 0.0317.  No analytical
               problem noted.  CTD Processor: "CTD salinity is acceptable."

123            Sample Log: "Top lanyard."  No samples were drawn.

102-110        See 101 PI NO3 comment. Leave data as is, acceptable.

101            PI: "NO3 is low in comparing NO3/theta to PO4/theta plots."
               Nutrient analyst: "No obvious analytical error."  Leave data
               as is, acceptable.



STATION 124

105            Delta-S at 4366db is 0.0037.  No analytical problem noted.
               Salinity agrees with adjoining stations.



STATION 125

106            Marine tech log: "Large orange tentacle on lanyard, no
               obvious evidence of contamination in bottle."



STATION 126

141            Sample Log: "O2 value from draw 2."



STATION 127

Cast 1         No comments on Sample Log.



STATION 128

139            CTDO Processor: "3-min. stop at 16-20db distorted surface
               fit."  Code 0-20 db CTDO bad.

138            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks ok."  Delta-S at 187db is -0.0276.  No
               analytical problem noted.  CTD Processor: "CTD salinity is
               acceptable."



STATION 129

Cast 1         Marine tech log: "Changed winches again."  CTD Processor:
               "Bottle salts high compared to CTD."  Whatever the problem
               was it seems to be okay for final data.

139            NO2: "Oscillation in baseline, value bad."  Oscillation
               during shallow water samples, footnote NO2 bad.

135            NO2: "Oscillation in baseline, value bad."  Oscillation
               during shallow water samples, footnote NO2 bad.

138            NO2: "Oscillation in baseline, value bad."  Oscillation
               during shallow water samples, footnote NO2 bad.

133            NO2: "Oscillation in baseline, value bad."  Oscillation
               during shallow water samples, footnote NO2 bad.

141            NO2: "Oscillation in baseline, value bad."  Oscillation
               during shallow water samples, footnote NO2 bad.

131            NO2: "Oscillation in baseline, value bad."  Oscillation
               during shallow water samples, footnote NO2 bad.

120            Delta-S at 2123db is -0.003.  No analytical problem noted.
               Salinity appears slightly low compared with adjoining
               stations, however, there are changes in this area.  Code
               salinity questionable.

109            Delta-S at 4007db is -0.0037.  No analytical problem noted.
               Salinity appears slightly low compared with adjoining
               station.  Code salinity questionable.

106            Sample Log: "Top o-ring failed to seal."  No samples were
               drawn.



STATION 130

Cast 1         Sample Log: "TCO2/ALK sampled simultaneously."

137            Sample Log: "Bottom leaked, but sampled anyways."  Marine
               tech log: "Bottom o-ring leak, stopped when pressed on
               bottom lid."  Oxygen as well as other data are acceptable.

125            Sample Log: "Bottom o-ring."  No samples were drawn.

101-109        PI: "NO3 appears 1.0-1.5uM/kg high comparing NO3/theta to
               PO4/theta plots."  Nutrient analyst: "No obvious analytical
               error."  NO3 is low compared with next stations and high
               compared with previous stations.  Footnote NO3 questionable.



STATION 131

Cast 1         Sample Log: "No comments."



STATION 132

Cast 1         Sample Log: "500 ml volumes taken for TCO2- includes TALK
               aliquot."

139            Marine tech log: "Bottom o-ring problems."  Sample Log:
               "Leaking from bottom-endcap reseated once on deck."

129            Sample Log: "Lanyard in top end cap."  Delta-S at 769db is
               0.2924.  Oxygen not drawn.  nuts: "Sample drawn despite
               lanyard problem."  PO4/NO3 look low; salt definitely high.
               salts: "Sample drawn despite lanyard problem."  Footnote
               bottle leaking, salinity bad, oxygen not drawn, and
               nutrients bad.

128            Sample Log: "O2 flask recorded as 1147, actual 1149."

119            Sample Log: "Vent open; nuts/salts drawn anyways."  Oxygen
               not drawn.  PI: "Salt and nuts ok even though vent was
               open."

114-117        Nutrient samples were not drawn-sampler error.

111            PI: "Bottle salt slightly high."  3 units diff between 2
               conductivity ratios.  Delta-S at 3599db is 0.0045.  Footnote
               salinity questionable.

105            PI: "Bottle salt slightly high."  Delta-S at 4519db is
               0.0035.  No analytical problem noted.  Footnote salinity
               questionable.

101            PI: "Bottle salt slightly high."  Analyst: "Standby value 4
               units higher than surrounding samples."  Delta-S at 5046db
               is 0.0056.  Footnote salinity bad.



STATION 133

Cast 1         CTD Processor: "Bottle salts high compared to CTD."
               Whatever the problem was, the salinities are okay now.

139            Oscillation during shallow water samples, footnote NO2 bad.

135            Oscillation during shallow water samples, footnote NO2 bad.

138            Oscillation during shallow water samples, footnote NO2 bad.

133            Sample Log: "Top end cap did not seat properly."  No samples
               were drawn.

141            Oscillation during shallow water samples, footnote NO2 bad.

131            Oscillation during shallow water samples, footnote NO2 bad.

116            Delta-S at 2577db is -0.0037.  No analytical problem noted.
               Code salinity questionable.

115            Delta-S at 2728db is -0.0043.  Autosal took 4 tries before
               getting a good reading.  Code salinity bad.

114            Delta-S at 2879db is -0.0031.  No analytical problem noted.
               Salinity does appear lower than adjoining stations, and so
               do the next (shallower) 2 samples.  Footnote salinity
               questionable.

113            Sample Log: "Top endcap has lanyard from 12 slightly in it.
               No apparent air leak.  Re-sampled o2 after cleaning MnCl2
               dispenser."

105            Sample Log: "Broken bottom hose clamp needs to be replaced."
               Data are acceptable.



STATION 134

139            Sample Log: "Bottle inadvertently dumped before salts
               drawn."

141            Sample Log: "Freon syringe 9895 recorded for both 32 and 34,
               syringe C355 used to redraw 32 "just in case"."

117            Sample Log: "Lanyard in top end cap, leaked."  No samples
               were drawn.

107            Sample Log: "Lanyard in top end cap, leaked."  No samples
               were drawn.



STATION 135

133            PI: "Low bottle salt, maybe real, high salt gradient."
               Analyst: "No obvious analytical error."  Delta-S at 257db is
               -0.0431.  CTD Processor: "CTD salinity is acceptable."

117            Sample Log: "Top lanyard."  No samples were drawn.



STATION 136

139            CTDO Processor: "Raw surface signal low compared to nearby
               casts and bottle data."  Code 0-104 db CTDO bad.

133            PI: "Low bottle salt, may be real, high salt gradient."
               Analyst: "No obvious analytical error."



STATION 137

Cast 1         CTD Processor: "Bottle salts high compared to CTD."  This
               salinity analyst has had a few runs that have not agreed
               well with the other data sets. Suspect that this is due to
               inexperience. Salinities are within specs, and the
               inconsistency is not due to a bottle or tripping therefore,
               salinities are acceptable unless otherwise noted.  Comments
               from PDR watchstander: "Winch trouble delayed launch by 4
               hrs; co2 chemicals dumped over side shortly before cast."

141            Sample Log: "Leaking bottom o-ring, nuts and salts drawn."
               No gas samples were drawn, other data are acceptable.

121            Delta-S at 1696db is -0.0054.  Autosal took 4 tries to get
               readings to agree, this is usually an indication that the
               salinity would be bad.  Footnote salinity bad.

115            Delta-S at 2581db is -0.003.  No analytical problem noted.

108            Delta-S at 3650db is -0.0047.  Autosal took 3 tries to get
               readings to agree, this is usually an indication that the
               salinity would be bad.  Footnote salinity bad.  Other data
               are acceptable.



STATION 138

Cast 5         Sample Log: "No comments."

538            PI: "Low bottle salt, may be real, high salt gradient."
               Analyst: "No obvious analytical error."  Delta-S at 177db is
               -0.0264.  CTD Processor: "CTD salinity is acceptable."

523            PI: "Slightly high bottle salt."  Analyst: "No obvious
               analytical error."  Delta-S at 1516db is 0.0074.  Footnote
               salinity questionable.



STATION 139

Cast 1         Sample Log: "No comments."

138            PI: "Low bottle salt, high salt gradient area, may be real."
               Analyst: "No obvious analytical error."  CTD Processor:
               "Bottle salt slightly low compared to CTD."  PI: "Salinity
               looks okay."  Delta-S at 187db is -0.0491.  CTD Processor:
               "CTD salinity is acceptable."



STATION 140

Cast 1         Sample Log: "No comments."

139            CTDO Processor: "Low surface raw oxy signal, fit looks low."
               Code 0-80 db CTDO bad.

135            See 139 CTDO comment; code CTDO bad.



STATION 141

Cast 1         Sample Log: "No comments."

108            Delta-S at 3517db is -0.0034.  No analytical problem noted.
               Salinity is out of specification, but usable.
STATION 142

139            CTDO Processor: "High surface raw oxy signal, bad fit."
               Code 0-100 db CTDO bad.

135            See 139 CTDO comment; code CTDO bad.

141            nuts: "Sample not drawn, sampler error; sample taken from
               salt bottle."  salts: "Reopened 45 mins. after sample
               collection to take nuts sample."

137            nuts: "Sample not drawn, sampler error; sample taken from
               salt bottle."  salts: "Reopened 45 mins. after sample
               collection to take nuts sample."

129            PI: "Bottle salt high, appears to have been drawn from
               bottle 41."  Delta-S at 481db is 0.4963.  Footnote salinity
               bad.

102-117        See 101 PI PO4 comments. Leave PO4 and NO3 as acceptable.

101            PI: "PO4 appears low by about 0.02uM/kg when comparing
               PO4/theta and NO3/theta plots."  Nutrient analyst: "No
               obvious analytical error."  Leave PO4 and NO3 as acceptable.



STATION 143

139            CTDO Processor: "Low surface raw oxy signal, fit looks low."
               Code 0-84 db CTDO bad.

135            See 139 CTDO comment; code CTDO bad.



STATION 144

139            Sample Log: "Leaked from the bottom, sampled
               anyways/surface."  Oxygen as well as other data are
               acceptable.  CTDO Processor: "Low surface raw oxy signal,
               fit looks low."  Code 0-84 db CTDO bad.

135            See 139 CTDO comment; code CTDO bad.

133            Sample Log: "Bad top o-ring seal."  No samples were drawn.

122            Sample Log: "Bad o-ring seal."  No samples were drawn.



STATION 145

Cast 1         Sample Log: "Some bottles exposed to sun, even though cart
               pulled far back/door lowered - sun was low."  Comments from
               PDR watchstander: "Second/shallower bottom appeared on pdr
               at cast start."

124            Sample Log: "Rosette bottle exposed to sun - see note
               above."

122            Sample Log: "Rosette bottle exposed to sun - see note
               above."

120            Sample Log: "Rosette bottle exposed to sun - see note
               above."

119            Sample Log: "Lower o-ring leak problem."  No samples were
               drawn.  Marine tech log: "Reseated o-ring."

140            Sample Log: "Rosette bottle exposed to sun - see note
               above."

116            Sample Log: "Rosette bottle exposed to sun - see note
               above."

114            Sample Log: "Rosette bottle exposed to sun - see note
               above."


112            Sample Log: "Flask 856 has a crack."  PI: "O2 ok although
               flask has a crack."  Oxygen analyst: "No analytical error."

102            CTD Processor: "Bottle oxy looks slightly low compared to
               CTD trace.  Oxygen analyst: "No analytical error."  PI: "O2
               low relative to CTD trace, but it is in agreement with
               nutrient vertical profile, do not flag."  CTD Processor:
               "Bottle salt slightly low compared to CTD."  Delta-S at
               3901db is -0.006.  No analytical problem noted.  CTDO
               Processor: "Looks ~high relative to nearby CTD casts and own
               bottles."  Code 3818-3970 db CTDO questionable.  Footnote
               salinity bad.



STATION 146

Cast 1         Sample Log: "No comments."  Comments from PDR watchstander:
               "Strong subsurface current - ship had to steam east at 0.7kn
               to maintain good wire angle; up/especially top 1000m may not
               sample same water as down cast CTD."

140            PI: "Bottle oxy looks low compared to CTD trace-probable dup
               draw on bottle 119 (shallower); nuts look ok."  Oxygen
               analyst: "No analytical error."  Footnote oxygen bad.

102            CTD Processor: "Bottle oxy looks slightly low compared to
               CTD trace."  PI: "Bottle oxy slightly lower than CTD trace,
               but in agreement with nutrient vertical profile. Do not
               flag."  oxy analyst: "No analytical error."



STATION 147

139            CTDO Processor: "Low surface raw oxy signal, fit looks low."
               Code 0-90 db CTDO bad.

135            See 139 CTDO comment; code CTDO bad.

137            Sample Log: "Slow leak at bottom o-ring when vent was
               opened."  Oxygen as well as other data are acceptable.



STATION 148

139            CTDO Processor: "Low surface raw oxy signal, fit looks low."
               Code 0-94 db CTDO bad.

135            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks ok."  See 139 CTDO comment; code CTDO
               bad.

125            Sample Log: "Bottom o-ring seal leaked."  No samples were
               drawn.

105            PI: "Bottle salt high."  No obvious analytical error.
               Delta-S at 3444db is 0.0096.  Bottle salinity appears high
               compared with CTD, but seems to agree with adjoining
               stations. Since PI indicated the salinity was high, footnote
               as questionable.  Footnote salinity questionable.



STATION 149

133            Sample Log: "Bad bottom o-ring seat."  No samples were
               drawn.

128            Sample Log: "O2 flask 1221 replaced with 1082 prior to
               drawing of sample."



STATION 150

Cast 1         Marine tech log: "Trip arm between 35 & 36 (Bottle 39).
               Winchman came to surface and back down 10 before deck watch
               check for 1 open bottle.  Winchman said only one bottle
               open, but evidence shows 2 were open, one still open when
               came on board. Need to change pinger!"


139            CO log/Sample Log: "Bottle (39) open, not tripped/never
               triggered."

135            See 137 bottle tripping comment; code bottle did not trip
               correctly, data is acceptable.

138            See 137 bottle tripping comment; code bottle did not trip
               correctly, data is acceptable.

142            CO log: "New bottle 42 replaces 33 beginning this cast.
               Oxygen analyst: "Bottle oxygen missing due to computer
               problem at analysis." Footnote oxygen lost.  See 137 bottle
               tripping comment; code bottle did not trip correctly, oxygen
               lost, other data are acceptable.

141            See 137 bottle tripping comment; code bottle did not trip
               correctly, data is acceptable.

131            See 137 bottle tripping comment; code bottle did not trip
               correctly, data is acceptable.

137            It appears that a bottle (37) should have been tripped at
               526 db and it was not. There should have been 36 bottles
               tripped and there were only 35. Therefore, bottles 37, 31,
               41, 42, 38, and 35 were all tripped one level shallower than
               originally intended and bottle 39 was not tripped at all.
               Code bottle did not trip correctly, but all data is
               acceptable as pressure reassigned.

105            Delta-S at 3127db is 0.0035.  No analytical problem noted.
               Salinity is changing fairly rapidly in this area.  Salinity
               is acceptable.



STATION 151

135            CTD Processor: "Bottle salt slightly low compared to CTD."
               PI: "Salinity looks okay."  Delta-S at 59db is -0.0262.  CTD
               Processor: "CTD salinity is acceptable."

142            Delta-S at 165db is -0.4734.  See 141 bottle comments.
               Footnote bottle leaking and samples bad.

141            Suspect malfunction/interaction between bottle 41,42.
               Possible lanyard hung up due to position of bottle 42.  CTD
               Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 255db is 0.2751.  Footnote bottle leaking and
               samples bad.

122            PI: "Bottle salt too high, other measurements appear ok."
               No obvious analytical error.  Delta-S at 1111db is 0.0179.
               Footnote salinity questionable.

109            Sample Log: "Top o-ring problems."  No samples were drawn.



STATION 152

142            CTD Processor: "Bottle salt slightly low compared to CTD."
               See 141 comments.  Delta-S at 169db is -0.2011.  Footnote
               bottle leaking, samples bad.

141            Suspect malfunction/interaction between bottle 41,42.
               Possible lanyard hung up due to position of bottle 42.  CTD
               Processor: "Bottle salt slightly high compared to CTD."
               Delta-S at 254db is 0.1358.  Footnote bottle leaking,
               samples bad.



STATION 153

Cast 1         Sample Log: "Bottles 1-18(40), 35, 36(39) sampled this
               cast."

138            No samples collected as per sampling schedule.


142            No samples collected as per sampling schedule.

141            No samples collected as per sampling schedule.

131            No samples collected as per sampling schedule.

137            No samples collected as per sampling schedule.

119-129        No samples collected as per sampling schedule.

113            PI: "Bottle salt low, high salt gradient area."  Delta-S at
               142db is -0.0348.  CTD value is probably good on its own
               merit just not to compare with the bottle data.  No CTDO is
               calculated because the CTD Salinity is coded bad.  Code CTD
               salinity bad and CTD oxygen not reported.

104            No nutrient samples taken. Sampler error.

101-102        CTDO Processor: "Bottom 2 bottles look high, but match a T/S
               trend; they are probably fine and the CTD Oxygen have been
               coded as questionable. Shallow casts are traditionally hard
               to fit anyways, although the signal is absolutely straight
               for a long distance here."  CTDO Processor: "Bottom of cast
               may be low because of slowdown for approach, or bottles may
               be hi."  Code 490-566 db CTDO questionable.


______________________________________________________________________________________________
______________________________________________________________________________________________


DATA QUALITY EVALUATION: A15 NUTRIENTS AND DISSOLVED OXYGEN
(Joe C. Jennings, Jr. and Louis I. Gordon)
1999 DEC 28


OVERALL IMPRESSIONS:

The WOCE A15 section is a South Atlantic transect along the nominal longitude of 
19° West.  We were assigned stations numbered 28 - 109 running from 7.5° North 
to 32° South as listed in the ".SUM" file.  Additional station data in the 
".HYD" file was not part of the main A15 section, but we have assigned quality 
flags to all data in the ".HYD" file.  The data was collected in April/May 1994 
on R/V KNORR.  Dissolved oxygen, silicate, nitrate, nitrite, and phosphate were 
all reported.

Overall, the data quality appears to be very high and the initial QC checking by 
the data originators caught the vast majority of the questionable data.  A 
considerable number of the dissolved oxygen values were flagged by the data 
originators, apparently on the basis of poor agreement with the CTD oxygen 
rather than problems obvious on vertical profiles or oxygen/theta plots.  We 
agreed with flagging some of these as questionable, but think the data 
originators may have been over zealous in some of their flagging.  Most of the 
oxygen samples flagged as questionable were from the upper water column where 
there are strong gradients and the poor fit with the CTD oxygen sensor may be 
due to the lag time of the sensor response more than to the bottle oxygen 
sampler.  The depth range or effective sampling position of the rosette bottles 
relative to the CTD oxygen sensor might also be a factor.


COMPARISONS WITH OTHER WOCE CRUISES:

There are several zonal WOCE lines that are crossed by the A15 section.  We made 
very preliminary comparisons of the data at the intersections of A15 with A10 
and A08.  (We have been funded separately to do a detailed examination of WOCE 
line crossings that is presently underway.)

The A15 and A10 data sets appear to agree well.  Below about 3500 m, the A15 
phosphate and nitrate fall within the "envelope" of the A10 data.  Dissolved 
oxygen and silicate mostly overlap although the oxygen at A10 station 46 is 
higher by ca. 2 - 4µM/kg below 3500m than at the other stations and the silicate 
is lower by 5 - 8µM/kg.  A15 station 104 has higher oxygen and lower nutrients 
at the oxygen maximum/nutrient minimum (2000m - 3000m) than do the other 
stations at the crossing, but the salinity at this station is also higher in 
this depth range so these differences are probably real.

The A15 cruise track crosses the A08 track at ca 11.5° South.  In the upper 
1000m, there is some overlap of the oxygen data, but the oxygen concentrations 
diverge below this depth.  Here, there is a notable difference in the deep-water 
oxygen concentrations, with A08 being some 20µM/Kg lower than the A15 oxygen 
below 2000m.  The A08 nitrates are ca 1 - 2µM/Kg lower than the A15 data, and 
the silicates are ca. 2 - 3µM/Kg lower.  There is no readily apparent difference 
in the t/s structures of the stations at the crossover.  No phosphate was 
reported for the A08 cruise.


                                                                A15/AR15 BTL DQE

COMMENTS ON SPECIFIC STATIONS:

Five stations had one of the nutrients flagged in entirety by the data 
originator.


Stations 32: and 33:
All of the phosphate was flagged as "bad". The deep values all appear to be too 
high by 0.03 - 0.05 µM/Kg. The shallower values at these two stations appear to 
be consistent with those at adjacent stations, but we have flagged them as 
questionable because the data originator flagged all of these values as bad. 
Since only the deep values are obviously offset, the problem may have been an 
uncorrectable baseline shift or drift in the phosphate channel of the nutrient 
analyzer.

Station 84 and 85: 
All of the nitrate values were flagged as questionable by both the data 
originator and ourselves. The nitrate at these stations appears to be too high 
at the nutrient maximum, too low at the minimum, and high again in the deepest 
waters.

Station 97: 
We flagged all phosphate as questionable. It had been flagged as bad by the data 
originator. The values as reported are low from about 1000db to 3500db, then 
shift up abruptly and appear too high below 3500db.

At station 39, the nutrient values for bottle 23 look too high while those for 
bottle 24 seem too low.  It seems possible that a sampling error was made and 
that the samples from these two bottles were reversed, either when the samples 
were drawn, or when they were analyzed.

We note that samples from sampler # 42 were questionable four times during the 
middle to latter part of the leg, indicating possible tripping problems with 
this sampler.


                                                                A15/AR15 BTL DQE

A COMPLETE LISTING OF FLAGGED DATA IS ATTACHED.

A15 DQE NOTES: NUTRIENTS AND OXYGEN

STATION|SAMPLE|PRESSURE|  O2  | SIL  | NO3  | PO4  | COMMENTS
-------|------|--------|------|------|------|------|----------------------------------------
    2  |  17  |  727.4 |      | Low  | Low  | Low  |
    2  |  20  |  505.4 |      | Low  | Low  | Low  |
    3  |   6  | 1868   |      |      |      | High |
    3  |   7  | 1766.2 |      |      |      | High |
    4  |  18  | 1046.1 | High |      |      |      |
    5  |  13  | 1860.4 |      | Low  | Low  |      |
    7  |   2  | 3654   | Low  |      |      |      |
    7  |   8  | 2905.2 | High |      |      |      |
    7  |   9  | 2779.9 | Low  | Low  | High | High |
    8  |   8  | 2883.6 |      | High |
    8  |  14  | 1969.9 |      | Low  | High | High |
    8  |  17  | 1767.5 |      |      | High | High |
    9  |  39  |    4.8 |      | High | High |      |
   14  |  12  | 3136.4 |      |      | High |      |
   21  |   2  | 4403.9 |      | Low  | Low  |      |
   26  |  10  | 3795.4 |      | Low  |      | High |
   26  |  12  | 3795   |      |      |      | High |
   32  |  All |        |      |      |      | High | All flagged as "bad" by data originator
   33  |  28  |  454   |      | Low  | Low  |      |
   33  |  All |        |      |      |      | High | All flagged as "bad" by data originator
   37  |  14  | 2710.2 |      | High |      |      |
   37  |  15  | 2504.7 |      | High |      |      |
   39  |  13  | 3036.2 | High |      |      |      |
   39  |  23  | 1415.3 |      | High | High | High |
   40  |  13  | 2933.7 | High |      |      |      |
   41  |  42  |   50.6 |      | High | High | High |
   42  |  15  | 2531.5 | High |      |      |      |
   43  |   5  | 3903.8 | High |      |      |      |
   45  |   1  | 5300.2 | Low  |      |      |      |
   45  |  15  | 2531.5 | High |      |      |      |
   45  |  16  | 2731.8 | High |      |      |      |
   48  |  33  |  174   | High | High | High | High | Could these have been reversed?
   48  |  38  |  103.9 | Low  | Low  | Low  | Low  | #38 looks low and #33 a bit high.
   49  |  42  |  554.6 | Low  |      | Low  | Low  |
   50  |  25  | 1195.7 |      | High | High | High |
   50  |  28  |        | High |      |      |      |
   55  |  14  | 2220.9 | Low  | High | High | High |
   55  |  40  | 1817.5 | High |      |      |      |
   56  |  10  | 3190.1 |      | Low  |      |      |
   62  |   7  | 3566.8 |      | High |      |      |
   64  |  11  | 2681.3 | Low  | Low  | Low  | Low  |
   71  |  11  | 3549.5 | Low  | Low  | Low  | Low  |
   76  |  16  | 2018.7 |      | High |      |      |
   84  |  All |        |      |      | Bad  |      | All nitrate flagged
   85  |  All |        |      |      | Bad  |      | All nitrate flagged
   88  |  22  | 1564.8 | High |      |      |      |      
   91  |   9  | 3190.1 | High |      |      |      |
   92  |  25  | 1130.8 | High |      |      |      |
   93  |   5  | 3854.5 | High |      |      |      |
   97  |   1  | 4428.3 | High |      |      |      |
   97  |  All |        |      |      |      | Bad  | All phosphate flagged; shift problem.
  109  |  11  | 2653   | Low  | Low  | Low  |      |
  109  |  16  | 1992.8 | Low  |      |      |      |
  112  |  28  |  207.9 | High | High | Low  | Low  |
  132  |  29  |  769.3 |      | Low  | Low  | Low  |
  146  |  40  | 1750.4 | Low  |      |      |      |
  151  |  41  |        |      | Low? | Low  | Low  | Sil may be ok, but PO4 and NO3 are low
  151  |  42  |  164.9 |      | High | High | High |
  152  |  41  |  253.5 |      | Low? | Low  | Low  | Sil may be ok, but PO4 and NO3 are low
  152  |  42  |  169.2 |      | High | High | High |


______________________________________________________________________________________________
______________________________________________________________________________________________


DATA QUALITY EVALUATION REPORT FOR A15 AND AR15 CTD DATA.
(Bob Millard)
December 27, 1999


The data quality evaluation report for WOCE sections A15 and AR15 is divided 
into three sections.  First a check of the internal consistency of the CTD 
salinity and oxygen data in the bottle file A15.hyd is carried out.  Next the 
two decibar CTD salinity and oxygen data are compared with the "good" QUAL1 
flagged up profile water sample and CTD salinity and oxygen data.  Finally the 
consistency of the CTD salinity data from A15 is compared with other WOCE 
sections A8 & A9 collected in the same region and two other historical data 
sets; the GEOSEC expedition in 1972 and also a pre-WOCE cruise in 1983.  
Another equatorial section collected on the R/V Knorr cruise 142 in June 1994 
was also found for comparison with the AR15 equatorial data.

A cruise track is shown in figure 1 with stations indicated from both WOCE 
sections A15 and AR15.  Also indicated on figure 1, with diamond symbols in 
magenta, are the four places where comparison station data from other cruises 
was located.  The A15 and AR15 stations can be divided geographically into:  
Equatorial stations near 36 W in conjunction with a current meter array (AR15), 
the one time A15 is a North- South section along 19 W from 7.5 N to 30 S 
crossing the Mid-Atlantic ridge near the Equator at the Romanche fracture zone, 
and finally an East-West section along 18.5 S (AR15). The regional water mass 
variations of these stations contribute to the large envelope of salinity and 
oxygen variations seen versus potential temperature in the overall plots of 
these data shown in figure 2 and figure 3.  Only the "good" bottle data is 
shown on these plots but both "good & questionable" 2-decibar down CTD data are 
included.  The salinity and oxygen variations on potential temperature surfaces 
in the deeper water is much smaller as can be seen in figure 4 and figure 5.  
Except for the surface layer, most of the salinity variation in figure 2 occurs 
along the N-S section at 19 W in the Antarctic Intermediate Water (AAIW) 
centered at 5 °C.  The AAIW is found to become progressively saltier at any 
potential temperature towards the North and the Antarctic Bottom Water (AABW) 
is seen to become warmer at any salinity which contributes to the salinity 
variation of the deep waters seen in the theta/s of figure 4.  The salinity 
variations at any temperature for the E-W section data along 18 S shows much 
less salinity variability than found in the N-S section along 19 W.  The oxygen 
variation centered around the oxygen minimum at 10 C occurs mainly along the N-
S section at 19 W although some E-W oxygen variations on the 18 S section is 
also seen.  An odd increase in the deep 2 decibar CTD oxygen profiles is 
observed in a few of the stations shown in figure 5.  As discussed later, these 
CTD oxygen's were found to be correctly flagged as either questionable or bad 
in the 2 decibar data files.  All of the bottle data marked good "2" in the 
water sample file as well as CTD data are shown on these theta/s and 
theta/oxygen plots.  The CTD and water sample salinities and oxygen's appear to 
closely match each other.


                                                                A15/AR15 CTD DQE

WATER SAMPLE FILE QUAL2 CHECKS

The water sample bottle data salinity and oxygen data were checked as follows.  
The profiles were divided into shallow and deep layers at 1200 decibars after 
looking at the vertical gradients of temperature, salinity and oxygen.  
Histograms of the "good" salinity and oxygen differences (CTD-WS) shallow and 
deep show all to be normally distributed with a standard deviation deep of 
0.0013 psu and shallow equal to 0.0073 psu for salinity (figure 6a & b) and for 
oxygen the standard deviation deep is 1.14 µmol/kg and shallow equals 4.32 
µmol/kg (see figures 7a & b).  To look for data possibly flagged incorrectly, 
all questionable or bad observations with a difference (CTD-WS) less than 1.5 
times the deep water standard deviation were flagged in the DQE quality word 
(Qual2) as good (2) and then reexamined.  The shallow water standard deviation 
multiplied by 5.0 was used to screen all data flagged as good in QUAL1.  Any 
observations (CTD or WS) failing this edit criteria had both quality words (CTD 
and water sample) flagged as questionable (3) in the appropriate DQE quality 
word fields. 

The follow summarizes those bottle file data flagged as questionable that had 
differences less than 1.5 standard deviations of deep water (i.e. pressure 
>1200 dbars). The edit criteria for changing questionable and bad data to good 
is ~0.002 psu for salinity and the oxygen edit criteria is 1.71 µmol/kg.  A 
total of 54 water sample quality words were set to "good"; 20 water sample 
salinities in stations 8, 16, 22, 50, 79 & 80; 3 CTD salinities in stations 42 
& 50; 11 water sample oxygen in stations 22,33,37, 52, 91, 96, 99, 108, & 151 
and 20 CTD oxygen in stations 8, 9, 14, 16, 20, 29, 33, 49, 51, 52, 72, 100, 
103, 104, & 121. Most are isolated occurrences within a station except for the 
water sample salinities of stations 79 (a total of 10 values changed) and 
station 80 (a total of 6 values change).  For stations 79 and 80, an 
inconsistency in flagging salinity seems to exist as the CTD salinity was 
marked as "good" while the water bottle salinity flagged as either questionable 
or bad even though they lay within 0.002 psu of the CTD salt.

A second category of water sample quality word change involves those few 
observations flagged as good in the QUAL1 word but found to exceed 5 standard 
deviations of the shallow variability.  The edit criteria for changing a "good" 
PI QUAL1 data flag to questionable are those values greater than 0.0365 psu for 
salinity and the oxygen edit criteria is 21.17 µmol/kg.  Because the CTD and 
water sample data form the difference, both are marked as questionable in the 
DQE Qual2 quality word.  Only 10 additional Water sample & CTD salinity values 
were flagged as questionable (3) while an additional 8 water sample & CTD 
oxygen values were flagged as questionable (3).  All of these values were found 
in the upper 300 decibars.

A new water sample file was created with the second quality word (QUAL2) set as 
described above is found in A15DQE.hyd.  A list of revised WOCE water sample 
observations can be found the file called A15DQE.CNG.


                                                                A15/AR15 CTD DQE

COMPARING 2 DECIBAR CTD DATA WITH GOOD WATER SAMPLE DATA

The salinity differences at water samples (CTD minus water sample) are plotted 
versus station number in figure 8a and for deeps greater than 1000 decibars in 
figure 8b. The scatter of the salinity differences below 1000 decibars is 
remarkably tight with a standard deviation of 0.0014 psu.  There are a few 
stations with an average deep difference greater than 0.001 psu .  These are 
station numbers [22], [32], 39, 47, 50, 76, 87, 102, 109, [122], 133, [137], 
and [141].  The down and up salinity differences of these stations were 
examined individually versus pressure and those enclosed with brackets [ ] have 
consistent salinity differences below 1000 decibars that are also seen to occur 
in the down profiles.  Figure 6c shows the up cast CTD salinity has no 
systematic depth dependence when compared to the bottle salts. The down CTD 
salts are compared to the up cast water sample salinities at common pressures.  
The scatter in the deep down-profile salinity differences shown versus station 
in figures 7a & 7b are somewhat greater (0.005 versus 0.0014) as indicated on 
figure 7b.  This is probably due to temporal and spatial salinity changes on 
pressure surfaces between the down and up casts.  The station average salinity 
shifts at stations 22 and 122 seen earlier in figure 6b are reinforced in 
figure 7b.  Figure 7c again indicates that the down profile CTD salinity has no 
depth dependence when compared to the bottle salts. Histograms of CTD minus 
bottle salinities are shown for various depth intervals in figure 8 containing 
up cast comparisons and in figure 9 for the corresponding down-profile pressure 
levels.  Again, the histograms indicate that the CTD data is very consistent 
with the water sample salinities particularly in the deep (>3000 dbar) down-
profiles.

The oxygen differences at bottle stop locations (CTD minus Water Sample) are 
plotted versus station number in figure 10a and for deeps greater than 1000 
decibars in figure 10b.  The scatter of the oxygen differences below 1000 
decibars is 1.21 µmol/kg. Figure 10c shows the CTD oxygen has a slight pressure 
dependent shape characterized as the CTD oxygen value is slightly overestimated 
in a pressure range between 50 & 250 dbars and also at the maximum pressure 
while the CTD oxygen is slightly underestimated in the pressure range between 
600 & 1100 dbars.  Note that these depth dependent deviations are typically 
less than 2 µmol/kg.  The station average oxygen shifts at station 26 with the 
CTD low by 2 µmol/kg at depths greater than 1000 dbars.  Histograms of CTD 
minus bottle oxygen are shown for various depth intervals in figure 11 for up 
cast bottle comparisons.  The histograms indicate the CTD oxygen data is 
consistent with the water sample oxygen over intervals of 1000 decibars.  
Several stations were observed to have excessively high CTD oxygen values near 
the bottom of the cast (stations 29, 34, 52-57) but they are appropriately 
marked in the 2 decibar data files.


                                                                A15/AR15 CTD DQE

STABILITY

The stability of the CTD data is checked by first difference of 2 decibar 
potential density anomaly values within a station and then looking for unstable 
density anomaly differences (i.e. denser above lighter) that exceed  -0.0075 
kg/dbar and a more stringent -0.005 kg/dbar.  A table indicating  stations with 
observations failing these edit criteria is given below.  All of the density 
unstable data are in the strong temperature gradient upper 200 meters of the 
water column.


Station  Dsg/dp    Pres.  Salt    dsg/dp< -0.0075 kg/m3/dbar
   19   -0.02307    4.0  36.1427 
   30   -0.00803   66.0  35.6875 
   86   -0.00788    2.0  36.8946 
  103   -0.00810    4.0  36.2294 

Station  Dsg/dp    Pres.  Salt    dsg/dp< -0.005 kg/m3/dbar
   19   -0.02307    4.0  36.1427 
   19   -0.00730    6.0  36.1446 
   30   -0.00803   66.0  35.6875 
   32   -0.00579    2.0  35.9982 
   36   -0.00590    2.0  35.1736 
   54   -0.00611   50.0  36.1575 
   69   -0.00555   88.0  36.7510 
   71   -0.00554   98.0  36.6594 
   77   -0.00618   96.0  36.6078 
   82   -0.00576  112.0  36.4861 
   86   -0.00788    2.0  36.8946 
   97   -0.00515  152.0  35.6560 
   99   -0.00575    2.0  36.2865 
   99   -0.00690   84.0  35.8924 
  103   -0.00810    4.0  36.2294 
  104   -0.00602  100.0  35.8341 
  107   -0.00609   78.0  35.7391 
  115   -0.00511   92.0  36.5854 
  116   -0.00531  166.0  35.9384 
  122   -0.00646  194.0  35.7023 
  140   -0.00520  118.0  36.6436 
  144   -0.00608  138.0  36.6684 
  152   -0.00581  108.0  36.6232


                                                                A15/AR15 CTD DQE

SALINITY & OXYGEN COMPARISONS WITH OTHER DATA SETS

The salinity and oxygen of WOCE lines A8 and A9 were compared to A15 data at 
sections crossings. The equatorial repeat section AR15 and Knorr cruise 142 leg 
4 (June 1994) are also compared for equatorial stations.  These cruises all 
occur within a few months of each other.  Data from two other earlier cruises 
(GEOSEC in 1972 and Oceanus cruise 133 in 1983) are also examined although no 
comparison plots are shown for Oceanus 133 in this report.

WOCE section A8 along 11.33 S crossed A15 at 19 W (A8 stations 205 & 206) about 
2 weeks earlier than the corresponding A15 stations.  A potential 
temperature/salinity over plot of the crossing stations, given in figure 15, 
shows the A8 salinity data to be approximately 0.002 psu salty.  Oceanus 133 
stations 180 to 182 collected in March 1983 around 11 S and 19 W were found to 
be 0.006 saltier than A15.  It is not clear whether this difference is due to 
temporal changes in the 11 years separating these data or a salinity 
calibration problem with Oceanus cruise 133.  WOCE section A9 along 19 S 
follows along roughly the same latitude as the later stations of A15 but only 
the section crossings with A15 at 19 W and stations around 31 W close to 
GEOSECS Atlantic station 55 are also examined.  The comparisons at 19 W 
involves two groups of A15 stations (81-83 & 111-113) along with the A9 
stations 158 to 160 at the 19 W crossing.  The deep water salinity comparison 
versus potential temperature for these data is shown in figure 16 and the match 
is closer than 0.001 psu with A15 slightly salty but within the uncertainties 
between standard water batches.  Also one should note the excellent consistency 
for salinity in station 81-83 (A15) versus 111-113 (AR15) taken 2 weeks later.  
A15 stations 134 to 136 are taken close to GEOSEC station 55 (18 S & 31 W) but 
roughly one degree north of the A9 stations 142 & 143 (19 S & 31 W).  The match 
of salinity between A9 & A15 are again within 0.001 psu but the there is an 
indication that both of these sections are slightly fresher than the GEOSEC 
salinities as shown in figure 17.  The salinity for equatorial stations from 
Knorr cruise 142 leg 4 (June 1994) and AR15 (April 1994) are compared with 
potential temperature for geographically neighboring stations in figure 18. The 
salinity of AR15 is found to be 0.004 psu saltier at the coldest depths.

Oxygen data of A15 are compared with WOCE section A9 and GEOSEC station 55 
around 18 S and 31 W for deep potential temperatures in figure 20.  The deepest 
oxygen's of A9 and GEOSEC station 55 are in slightly better agreement and are 
about 2.5 µmol/kg higher but when the geographically closer crossing at 19 W 
and 18 40 S is examined in figure 19 we find little difference between these 
sections and excellent agreement within repeated occupations of A15.


SUMMARY

The CTD and water sample salinities of A15 and AR15 are well matched and agree 
well with other recent data collected in the region, in particular WOCE 
sections A8 and A9.  The CTD and water sample oxygen's of A15 and AR15 are also 
in close agreement at all depths except for CTD observations near the bottom as 
flagged in the data set.  The deep water oxygen's of A15 and AR15 are in 
reasonably close agreement with the oxygen data WOCE section A9.


                                                                A15/AR15 CTD DQE

FIGURE LEGENDS

Figure 1: Plot of annotated station positions with 3500 and 5000 meter depth 
          contour from GEBCO.

Figure 2: Overall plot of Salinity versus Potential temperature for all down 
          profile 2-decibar CTD salinities plus QUAL1 "good bottle file water 
          sample (+) and CTD (o).

Figure 3: Overall plot of oxygen versus Potential temperature below 2 °C for 
          down profile 2-decibar CTD oxygen's plus QUAL1 "good bottle file water 
          sample (+) and CTD (o).

Figure 4: Deep water plot of Salinity versus Potential temperature for all down 
          profile 2-decibar CTD salinities plus QUAL1 "good bottle file water 
          sample (+) and CTD (o).

Figure 5: Deep water plot of oxygen versus Potential temperature below 2 °C for 
          down profile 2-decibar CTD oxygen's plus QUAL1 "good bottle file water 
          sample (+) and CTD (o).

Figure 6: Histograms of QUAL1 "good" water sample salinity differences (CTD- WS) 
          psu. 
          a) Those differences at pressures less than 1200 dbars 
          b) Those differences at pressures greater than 1200 dbars

Figure 7: Histograms of QUAL1 "good" water sample oxygen differences (CTD-WS) in 
          µmol/kg 
          a) Those differences at pressures less than 1200 dbars 
          b) Those differences at pressures greater than 1200 dbars

Figure 8: 3 Plot panels of up cast salinity differences Ds = (CTD-WS) psu versus 
          station number 
          (a) all pressures 
          (b) below 1000 dbars and 
          (c) versus pressure. 

Figure 9: 3 Plot panels of downcast salinity differences Ds = (CTD-WS) psu 
          versus station number 
          (a) all pressures 
          (b) below 1000 dbars and 
          (c) versus pressure.

Figure 10: 4 histogram panels of up cast salinity differences Ds = (CTD-WS) psu 
           for various pressure intervals as labeled.

Figure 11: 4 histogram panels of downcast salinity differences Ds = (CTD-WS) psu 
           for various pressure intervals as labeled. Note a much higher standard 
           deviation in 2 shallowest histogram panels compared to up cast.

Figure 12: 3 Plot panels of up cast oxygen differences Dox = (CTD-WS) in µmol/kg 
           versus station number 
           (a) all pressures 
           (b) below 1000 dbars and 
           (c) versus pressure.

                                                                A15/AR15 CTD DQE


Figure 13: 4 histogram panels of up cast oxygen differences Dox = (CTD-WS) in 
           µmol/kg for various pressure intervals as labeled.

Figure 14: A plot of pressure versus station indicating unstable values of 
           density change with pressure: 
           b) x exceeding -0.005 kg/M3/dbar 
           a) *  exceeding -0.0075 kg/M3/dbar

Figure 15: A comparison of salinity on potential temperature at 11.3 S and 19 W 
           of A15 stations 67 to 69 versus WOCE line A8 stations 205 to 206 
           collected April 14, 1994. Salinity of A8 is approximately 0.002 psu 
           saltier than A15.

Figure 16: A comparison of salinity versus potential temperature at 18.75 S and 
           19 W of A15 stations 81 to 83 and 111 to 113 versus WOCE line A9 
           stations 158 to 160 collected February 22, 1991. The salinity of A9 is 
           less than 0.001 psu fresher than A15. The salinity of A15 stations 81-
           83 & 111-113, taken less than 2 weeks apart, are indistinguishable. 

Figure 17: A comparison of salinity versus potential temperature at 18 S and 31 
           W of A15 stations 134 to 136 (May 15, 1994) versus WOCE line A9 
           stations 143 to 144 (Feb. 14, 1991) and also GEOSECs station 55 
           collected November 11, 1972.  Again, the salinity of A9 is within 
           0.001 psu but the earlier GEOSEC's station appears a little salty.

Figure 18: A comparison of salinity versus potential temperature at the Equator 
           and 36 W of A15 stations 16 to 18 (April 8, 1994) versus Knorr cruise 
           142 leg 4 in June 1, 1994. The salinity of Knorr cruise 142-4 is 0.004 
           psu fresher than A15.

Figure 19: A comparison of oxygen versus potential temperature at 18.75 S and 19 
           W of A15 stations 81 to 83 and 111 to 113 versus WOCE line A9 stations 
           158 to 160 collected February 22, 1991. The oxygen values of A9 and 
           A15 are indistinguishable from one another. The oxygen of A15 stations 
           81-83 & 111-113, taken less than 2 weeks apart, a show as much 
           variation as between A15 and A9.

Figure 20: A comparison of oxygen versus potential temperature at 18 S and 31 W 
           of A15 stations 134 to 136 (May 15, 1994) versus WOCE line A9 stations 
           143 to 144 (Feb. 14, 1991) and also GEOSECs station 55 collected 
           November 11, 1972.  The oxygen of A9 is higher than A15 below a Pot. 
           Temperature of 1.5 C by 2 µmol/kg. The earlier GEOSEC's station 
           appears to agree with the A9 oxygen's. 



______________________________________________________________________________________________
______________________________________________________________________________________________



WHPO-SIO DATA PROCESSING NOTES

Date      Contact       Data Type    Data Status Summary
--------  ------------  -----------  -----------------------------------------
08/10/94  Smethie       DOC          Cruise Rpt Submitted

08/24/94  Joyce         DOC          Sent to DIU    

03/21/95  Kozyr         CO2          Agreed to do DQE

11/22/96  Smethie       CTD/BTL      Submitted for DQE; CFCs not ready

02/04/98  Kozyr         CO2          Final Data Submitted
          I have put 2 files with final CO2-related data to your ftp area: 
          File a15co2fin.dat is the data obtained during the R/V Knorr 
          cruise along WOCE Section A15. The data were submitted to CDIAC by 
          Dr. Catherine Goyet of WHOI. File a5co2fin.dat is the data 
          obtained during Spanish R/V Hesperides cruise along WOCE Section 
          A5. These data were submitted to CDIAC by Dr. Frank Millero of 
          RSMAS.

03/10/98  Smethie       CTD/BTL      Data Not Public
          I'm sorry to be so long in replying to this, but I wanted to get 
          Georges Weatherly's opinion. I just heard from him today. He is 
          currently in France working with French investigators on WOCE 
          South Atlantic. The French have not yet released their data so for 
          now, I would like it not to be made public, but I have released it 
          to whom ever has requested it and will continue to do so.

07/16/98  Swift         CFCs         No Data Submitted; Request sent to Smethie

01/12/99  Smethie       BTL          Status Changed to Public
          Yes Jim, please make these data public. -- Bill
          
          Bill - Referring to your message yesterday:  Although A15 was part 
          of WOCE rather than part of SAVE, considering that you are the PI 
          on A15, can we make the CTDO and bottle S/O2/nuts/CFC data public 
          for A15?  Jim

01/22/99  Diggs         CTD/BTL      Website Updated, data unencrypted
          A15 (Smethie: 316N142_3) is now public, both CTD and Bottle.  The 
          Bottle file only contains Nuts/O2, no CFCs, but we have CO2 
          waiting to be merged in.


Date      Contact       Data Type    Data Status Summary
--------  ------------  -----------  -----------------------------------------
04/16/99  Jenkins       He/Tr        Not collected/processed; no funding

05/25/99  Jennings-Jr.  NUTs/S/O     DQE Report Submitted to WHPO-SIO 
          We've finished up our notes on the A15 oxygen and nutrients.  I'll 
          attach them as a WORD 97 document.  If an Excel spreadsheet 
          summary would be easier for you to handle, just let us know.
          
          I will ftp the A15.HY2 file to your site in a few minutes.

05/26/99  Kozyr         CO2          Final Data Submitted to WHPO-SIO
          I have put the final CO2-related data file for the Atlantic Ocean 
          WOCE Section A15 to the WHPO ftp INCOMING area. There are two CO2 
          parameters: Total CO2 and alkalinity with quality flags. Please 
          let me know if you received the data okay.

11/15/99  Kozyr         SUM          Data Update needed, data missing
          There is no station data for stations 1-27, but there is bottle 
          data. Missing stations are for ar15.  They exist in an earlier sum 
          file for this cruise which will be reformatted & linked to the 
          website. - jk

12/28/99  Millard       CTD          DQE Complete
          Figs, hyd file, changes file submitted for dqe report. No text.  
          Tried logging on to transfer A15 report and graph files a couple 
          of times today with no luck.  Off tomorrow so may have to wait 
          until the year 2000.

01/18/00  Huynh         DOC          PDF Version OnLine

02/14/00  Kozyr         CO2          Final Data Submitted to WHPO-SIO
          I've just put a total of 13 files [carbon data measured in Indian 
          (6 files) and Atlantic (7 files) oceans] to the WHPO ftp area. 
          Please let me know if you get data okay.


Date      Contact       Data Type    Data Status Summary
--------  ------------  -----------  -----------------------------------------
03/13/00  Smethie       CFCs         Submitted to WHPO-SIO
          The final A15 CFC data was sent to you on March 13, 2000.  After 
          you have merged these data with the final hydrographic data, the 
          CFC data should be made public.

03/29/00  Newton        CFCs         Data Merged into HYD file
          Existing .sum file probably has BE time wrong on stn=138 cst=1. 
          1359?
             Existing .hyd file has missing values as "-9" instead of "-
          9.00". Some
          Fortran code will read this incorrectly.
           In a15_cfc_Smethie.dat changed:
                stn=19 cst=1 to cst=2. cst=1 was aborted for winch trouble.
                stn=33 cst=1 btlnbr=32 to btlnbr=41 
                stn=33 cst=1 btlnbr=30 to btlnbr=37
                stn=45 cat=1 to cst=2. cst=1 was bio-optics
                stn=55 cst=1 btlnbr=36 to btlnbr=38
                stn=108 cst=1 to cst=2. cst=1 was aborted.
                stn=138 cst=1 to cst=5. cst=1 was aborted.
           29Mar2000 DMN

04/12/00  Diggs         CFCs         Data Merged into OnLine File
          Bill, Your new values for A15 CFCs have been merged and placed on 
          the website.

05/24/00  Huynh         DOC          Website Updated  txt file online

10/11/00  0KJU          sum          Data located, moved to correct directory
          Files were found in incoming directory under whp_reports. This 
          directory was zipped, files were separated and placed under proper 
          cruise. All of them are sum files.
          Received 1997 August 15th.

12/11/00  Uribe         DOC          Submitted  
          File contained here is a CRUISE SUMMARY and NOT sumfile. 
          Documentation is online.

06/19/01  Swift         CTDTMP       Update Needed 
          An oceanographically-insignificant error in CTDTMP data for this 
          cruise has been found (ca. -0.00024*T - 0.00036 degC).  A data update 
          is forthcoming. In the interim the corrected data files can be 
          obtained from: ftp://odf.ucsd.edu/pub/HydroData/woce/crs
          

Date      Contact       Data Type    Data Status Summary
--------  ------------  -----------  -----------------------------------------
06/20/01  Johnson       CTD          Data Update; Processing error corrected
          revised data available by ftp  ODF has discovered a small error in the 
          algorithm used to convert ITS90 temperature calibration data to 
          IPTS68.  This error affects reported Mark III CTD temperature data for 
          most cruises that occurred in 1992-1999.  A complete list of affected 
          data sets appears below.

          ODF temperature calibrations are reported on the ITS90 temperature 
          scale.  ODF internally maintains these calibrations for CTD data 
          processing on the IPTS68 scale.  The error involved converting ITS90 
          calibrations to IPTS68.  The amount of error is close to linear with 
          temperature: approximately -0.00024 degC/degC, with a -0.00036 degC 
          offset at 0 degC.  Previously reported data were low by 0.00756 degC 
          at 30 degC, decreasing to 0.00036 degC low at 0 degC.  Data reported 
          as ITS90 were also affected by a similar amount.  CTD conductivity 
          calibrations have been recalculated to account for the temperature 
          change.  Reported CTD salinity and oxygen data were not significantly 
          affected.
          
          Revised final data sets have been prepared and will be available soon 
          from ODF (ftp://odf.ucsd.edu/pub/HydroData).  The data will eventually 
          be updated on the whpo.ucsd.edu website as well.
          IPTS68 temperatures are reported for PCM11 and Antarktis X/5, as 
          originally submitted to their chief scientists.  ITS90 temperatures 
          are reported for all other cruises.

          Changes in the final data vs. previous release (other than temperature 
          and negligible differences in salinity/oxygen):
          S04P:  694/03 CTD data were not reported, but CTD values were reported 
          with the bottle data.  No conductivity correction was applied to these 
          values in the original .sea file.  This release uses the same 
          conductivity correction as the two nearest casts to correct salinity.
          AO94:  Eight CTD casts were fit for ctdoxy (previously uncalibrated) 
          and resubmitted to the P.I. since the original release.  The WHP-
          format bottle file was not regenerated.  The CTDOXY for the following 
          stations should be significantly different than the original .sea file 
          values:
              009/01 013/02 017/01 018/01 026/04 033/01 036/01 036/02 
          I09N: The 243/01 original CTD data file was not rewritten after 
          updating the ctdoxy fit.  This release uses the correct ctdoxy data 
          for the .ctd file.  The original .sea file was written after the 
          update occurred, so the ctdoxy values reported with bottle data should 
          be minimally different.
          ======================================================================
          DATA SETS AFFECTED:
          WOCE Final Data - NEW RELEASE AVAILABLE:
            WOCE Section ID   P.I.                 Cruise Dates
            ------------------------------------------------------------
            S04P             (Koshlyakov/Richman)  Feb.-Apr. 1992
            P14C             (Roemmich)            Sept. 1992
            PCM11            (Rudnick)             Sept. 1992
            P16A/P17A        (JUNO1)  (Reid)       Oct.-Nov. 1992
            P17E/P19S        (JUNO2)  (Swift)      Dec. 1992 - Jan. 1993
            P19C             (Talley)              Feb.-Apr. 1993  
            P17N             (Musgrave)            May-June 1993
            P14N             (Roden)               July-Aug. 1993
            P31              (Roemmich)            Jan.-Feb. 1994
            A15/AR15         (Smethie)             Apr.-May 1994   
            I09N             (Gordon)              Jan.-Mar. 1995
            I08N/I05E        (Talley)              Mar.-Apr. 1995
            I03              (Nowlin)              Apr.-June 1995
            I04/I05W/I07C    (Toole)               June-July 1995
            I07N             (Olson)               July-Aug. 1995
            I10              (Bray/Sprintall)      Nov. 1995   
            ICM03            (Whitworth)           Jan.-Feb. 1997

          non-WOCE Final Data - NEW RELEASE AVAILABLE:
            Cruise Name       P.I.                 Cruise Dates
            ------------------------------------------------------------
            Antarktis X/5    (Peterson)            Aug.-Sept. 1992
            Arctic Ocean 94  (Swift)               July-Sept. 1994
            Preliminary Data - WILL BE CORRECTED FOR FINAL RELEASE ONLY
              NOT YET AVAILABLE: 
            Cruise Name       P.I.                 Cruise Dates
            ------------------------------------------------------------
            WOCE-S04I        (Whitworth)           May-July 1996   
            Arctic Ocean 97  (Swift)               Sept.-Oct. 1997
            HNRO7            (Talley)              June-July 1999
            KH36             (Talley)              July-Sept. 1999

          "Final" Data from cruise dates prior to 1992, or cruises which 
              did not use NBIS CTDs, are NOT AFFECTED.
          post-1991 Preliminary Data NOT AFFECTED:
            Cruise Name       P.I.                 Cruise Dates
            ------------------------------------------------------------
            Arctic Ocean 96  (Swift)               July-Sept. 1996
            WOCE-A24 (ACCE)  (Talley)              May-July 1997
            XP99             (Talley)              Aug.-Sept. 1999
            KH38             (Talley)              Feb.-Mar. 2000
            XP00             (Talley)              June-July 2000
          

Date      Contact       Data Type    Data Status Summary
--------  ------------  -----------  -----------------------------------------
06/21/01  Uribe         CTD/BTL      Online EXCHANGE Files Added and/or Modified
          The exchange bottle file name in directory and index file was 
          modified to lower case. CTD exchange files were put online.

06/21/02  Wanninkhof    CFCs         Data Added to Kozyr's file
          A15 - Our position data was slightly different than the WOCE 
          position data probably due to different times when the position 
          was recorded (e.g one file prabably used CTD at depth and other 
          CTD in water). Added CFC data to our file which was missing from 
          the file we obtained from Alex.

07/30/02  Muus          CO2/CTDTEMP  Data merged into online file
          Merged revised ODF tempertures, TCO2 and Alkalinity into current 
          web bottle file. Replaced CTD files with revised ODF files. New 
          bottle and ctd files now on web with new exchange files. Details 
          in notes file sent to Jerry.
          
          Notes on A15/AR15 merging:
          
          1. Merged A15 CTDTMP and THETA from ODF Revised Temperature file:
             /usr/export/ftp/pub/HydroData/woce/a15ar15/a15ar15hyd.zip into 
             bottle file (a15hy.txt 20010329WHPOSIOKJU)
          
          2. Merged A15 TCARBN and ALKALI from CDIAC web site into new 
             bottle file:
          
                  http://cdiac.esd.ornl.gov/ftp/oceans/a15woce/a15dat/txt
          
          3. Replaced CTD data files with Revised ODF CTD files with 
             corrected temperatures from:
             /usr/export/ftp/pub/HydroData/woce/a15ar15/a15ar15ctd.zip. Changed 
             file names from ssscc.ctd to a15_0sss.wct for Cast 1 to 
             a15_0sss.2.wct for Cast 2 where sss = Station Number cc = Cast 
             Number to conform to present WOCE file name format.
          
          4. Made new exchange files for CTD and Bottle data.
          
          5. Checked new data files with Java Ocean Atlas.

08/09/02  Muus          CTD          Website Updated; Station files renamed
          Modified CTD exchange zip file by renaming station files so they 
          are in chronological order. Used a15 instead of ar15 for all file 
          names as in woce format ctd file.
          
10/16/03  Millard       CTD          DQE Report Submitted to WHPO-SIO
          I believe this is the final A15 DQE report.  I'm attaching the report 
          in both word and text  formats.  I've also attached the last group of 
          figures 10 - 20.  Look it over & let me know if it is complete.

10/21/03  Kappa         DOC          Online Cruise Reports (PDF & Text) Updated
          o  replaced WHPO-SIO formatted ODF Report with ODF's original report
          o  added Bob Millard's CTD DQE report 
          o  added AR15 stations to WHPO-SIO station plot
          o  added PDF doc links to the ODF Data Report. Linked text is now  red
          o  updated figures for greater clarity, esp. magnified, & increased 
               download speed
          o  reformatted most tables and entire text doc
          o  added these WHPO-SIO Data Processing Notes


