TO VIEW PROPERLY YOU MAY NEED TO SET YOUR BROWSER'S CHARACTER ENCODING TO UNICODE 8 OR 16 AND USE YOUR BACK BUTTON TO RE-LOAD A. CRUISE REPORT: A01/AR07E (Updated SEP. 2008) A.1. HIGHLIGHTS WHP CRUISE SUMMARY INFORMATION WOCE section designation A01/AR07E Expedition designation (EXPOCODE) 64PE20000926 Chief Scientist & affiliation Dr. Hendrik van Aken/NIOZ* Dates 2000 SEP 26 - 2000 OCT 19 Ship R/V Pelagia Ports of call Texel, The Netherlands Number of stations 41 59°56.97'N Geographic boundaries of the stations 42°46.51'W 04°06.35'E 50°31.31'N Floats and drifters deployed 0 Floats, 0 Drifters Moorings deployed or recovered 0 Deployed, 0 recovered Contributing Authors Bakker, K. de Koster, R.X. Derksen, J. Hiehle, M. Hillebrand, M.T.J. Ober, S. Peijnenburg, K. van Haastrecht, E. Volkov, D. *Dr. Hendrik M. van Aken • Netherlands Institute for Sea Research P.O. Box 59 1790AB Den Burg/Texel • The Netherlands Tel: 31(0) 222-369416 • Fax: 31(0) 222-319674 • Email: aken@noiz.nl TABLE OF CONTENTS nr. Chapter 1. Cruise Narrative 1.1. Highlights 1.2. Cruise Summary Information 1.3. List of Principal Investigators 1.4. Scientific Programme and Methods 1.5. Major Problems Encountered during the Cruise 1.6. List of Cruise Participants 2. Underway Measurements 2.1. Navigation 2.2. Echo Sounding 2.3. Thermo-Salinograph Measurements 2.4. Meteorological data 3. Hydrographic Measurements -Descriptions, Techniques, and Calibrations 3.1. Rosette Sampler and Sampler Bottles 3.2. Temperature Measurements 3.3. Pressure Measurements 3.4. Salinity Measurements 3.5. Oxygen and TIC Measurements 3.6. Nutrient Measurements 3.7. CTD Data Collection and Processing 3.8. LADCP Data Collection and Processing 3.9. VMADCP Data Collection and Processing 3.10. Plankton Net Processing 3.11. Data Management 4. Acknowledgements Appendix A (cruise summary file) 1. CRUISE NARRATIVE 1.1. HIGHLIGHTS a. Re-survey of WOCE Hydrographic Program Repeat Section, RV Pelagia cruise 169 between Ireland and Greenland b. Expedition Designation (EXPOCODE): 64PE169 c. Chief Scientist: Dr. Hendrik M. van Aken Netherlands Institute for Sea Research (NIOZ) P.O.Box 59 1790AB Den Burg/Texel The Netherlands Telephone: 31(0)222-369416 Telefax: 31(0)222-319674 e-mail: aken@nioz.nl d. Ship: RV Pelagia, Call Sign: PGRQ length 66 m. beam 12.8 m draft 4 m maximum speed 12.5 knots e. Ports of Call: Texel to Texel f. Cruise dates: September 26 to October 19, 2000 AD 1.2. CRUISE SUMMARY INFORMATION SUMMARY Early before noon of 26 September RV Pelagia left the quay in the NIOZ harbour at Texel, and headed for the Irish continental shelf. Underway hauls with the plankton net at four stations were performed. The hydrographic programme with stations along the former WOCE line A1E/AR7E started early in the evening of 30 September. Due to too strong winds and high waves three times the survey was interrupted. This caused the skipping of four planned stations. Station 43 at the end of the section over the Greenland continental shelf was occupied in the afternoon of 10 October. From there course was set to the western slope of the Mid Atlantic Ridge to carry out measurements at two hydrographic stations which were skipped before due to bad weather. After finishing these stations course was set to the home port of RV Pelagia at Texel. At part of the hydrographic stations covering a range of North Atlantic hydrographic regimes plankton net casts were carried out. During the homeward bound part of the cruise additional net casts were performed over the continental shelf. A summary of the hydrographic and plankton net stations is given in the appendix. During the whole survey the Vessel Mounted ADCP (VMADCP) was switched on. Sea surface temperature, salinity, echo sounder depth, meteorological parameters and navigation information were recorded continuously. CRUISE TRACK The cruise was carried out in the North Atlantic Ocean. The cruise track is shown in figure 1. NUMBER OF HYDROGRAPHIC STATIONS A total of 41 CTD casts was recorded on the research line. On 39 of these casts, water samples were taken for the determination of salinity and dissolved bio-geochemical components. Three water samplers in the rosette system were fitted with reversing electronic pressure sensors. The positions of the hydrographic stations are indicated in figure 2. At the hydrographic stations the SBE9/11+ CTD was lowered with a speed of about 1 m/s. Due to the use of a bottom indicator switch we were able to sample to within quite a short distance from the bottom (10 m). HYDROGRAPHIC SAMPLING During the up-cast of each CTD/rosette station water up to 24 samples were taken at regular depth intervals. The samples were analysed for salinity, oxygen and nutrients. For test purposes also Dissolved Inorganic Carbon (DIC) was determined from the samples collected on the hydrographic section. The vertical distribution of the sampling locations is indicated in figure 3. NUMBER OF PLANKTON NET CASTS At 23 positions along the hydrographic section and during outward and homeward transit one or more plankton net casts were performed. Vertical hauls were taken using a plankton net with a diameter of 1 meter and a mesh size of 500 mm. Sampling depth varied between 300 and 24 meters, depending on the depth of the station and the density of the plankton. The net was hauled at a speed of 15 to 20 m/min. When back on board he catch was carefully washed into a bucket with a gentle flow of sea water. The organisms in this sample were then concentrated by pouring the content of the bucket through a sieve. 1.3. LIST OF PRINCIPAL INVESTIGATORS ______________________________________________________________________ Name Responsibility Affiliation ------------------------ --------------------------- ------------- Dr. H.M. van Aken Ocean hydrography & climate NIOZ/Texel Dr. K. T.C.A Peijnenburg Population genetics UvA/Amsterdam ______________________________________________________________________ 1.4. SCIENTIFIC PROGRAMMER AND METHODS The goal of the research carried out during the cruise was to establish the hydrography along a zonal section between Ireland and Greenland. This section is the former A1E/AR7E section of the WOCE Hydrographic Programme, which has been surveyed annually since 1990. The re-survey of this section is carried out in order to determine climate related inter-annual changes of the hydrographic structure in the North Atlantic Ocean. This survey is carried out in co-ordination with Dr. K. P. Koltermann (BSH, Hamburg) who is in charge of similar surveys along sections located further to the south. The CTD-rosette frame was fitted with weights in order to secure a fast enough falling rate. This package was lowered with a velocity of about 1 m/s, except in the lowest 100 m, where the veering velocity was reduced. Measurements during the down-cast went on to within 10 m from the bottom, until the bottom switch indicated the proximity of the bottom. During the up-cast water samples where taken at prescribed depths, when the CTD winch was stopped. After each cast the CTD/rosette frame was placed on deck. Subsequently water samples were drawn for the determination of dissolved oxygen, nutrients, and salinity, and the readings of the reversing electronic pressure sensors were recorded. The CTD frame was also fitted with an LADCP which measures velocity profiles. As an additional programme biological sampling was carried out with a plankton net. The plankton samples will be used for the study of the genetic population structure of chaetognaths. The plankton net was lowered to depths of 24 to 300 m. PRELIMINARY RESULTS At the end of the cruise the data are available in raw form and in partially processed form, but without final calibration applied. Oxygen and nutrients are still in volumetric concentrations and should be transformed into densimetric concentrations and corrected for sea water blanks and standards. However already from the partially processed data, presented in figures 5 to 10, some insight can be gained of the hydrographic situation along the hydrographic section. 1.5. MAJOR PROBLEMS ENCOUNTERED DURING THE CRUISE Especially in the early stages of the survey many sampler bottles did not close satisfactorily because the thickness of the O-rings in the sampler lids were not according to specifications. Intense servicing and selecting O-rings from the spare parts for accurate size solved most of these problems. Ultimately 7% of the samples had to be rejected because of sampler failure. It is recommended that for future cruises enough quality controlled spare O-rings are available, preferentially rings made of a softer type of rubber. Temperature control in laboratory container 1 initially caused problems. Since for the use of the salinometer a tight temperature range in the laboratory is required, this malfunction hindered the progress of the salinity determinations. Only after establishing contact with the department of marine technology at NIOZ the problems could be overcome. It is recommended that in future cases where container 1 is used the technical staff on board RV Pelagia is informed ahead of the required settings of the air-conditioning. In the auto-analyzer laboratory containers the air conditioned functioned well. However the direct flow of cool air along the auto- analyzers caused unstable measuring conditions. It is recommended to study how the air flow along the instrumentation can be controlled by means of adapting the position of the air inlet and the blower of the air-conditioning. It appeared during the cruise that both the oxygen sensor and the fluorimeter of the Aquaflow thermosalinograph system malfunctioned. It should be considered to replace these sensors on short term. 1.6. LISTS OF CRUISE PARTICIPANTS SCIENTIFIC CREW Person Responsibility Institute -------------------- ----------------------------------- --------- H.M. van Aken Chief Scientist NIOZ K. Bakker Nutrient & DIC determination NIOZ J. Derksen Electronic engineer, hydrowatch NIOZ E. K. van Haastrecht Biological sampling UvA M. Hiehle Hydro watch, Salinity determination NIOZ M.T.J. Hillebrand Hydro watch, LADCP NIOZ R.X. de Koster Hydro watch, Data management NIOZ S. Ober Hydro watch, VMADCP NIOZ K. T.C.A Peijnenburg Biological sampling UvA D. Volkov Oxygen NIOZ NIOZ: Netherlands Institute for Sea Research, Texel UvA: University of Amsterdam SHIPS CREW J.C. Groot captain E.A. Puyman first mate G. de Ruiter second mate J. Seepma first engineer J. Brandsma second engineer M. Garlinus cook C.T. Stevens ships technician R. van der Heide ships technician G. Struik sailor AB G.L.J. Betsema sailor AB 2. UNDERWAY MEASUREMENTS 2.1. NAVIGATION A differential GPS receiver was used for the determination of the position. The data from the receiver were recorded every ten seconds in the underway data logging system. After removal of a few spikes and application of a 5 min. running mean these data were sub-sampled every five minutes. 2.2. ECHO SOUNDING The 3.5 kHz echo sounder was used on board to determine the water depth. The uncorrected depths from this echo sounder were recorded in the underway data logging system. In rough seas the depth digitizer of the echo sounder was occasionally not able to find a reliable depth. 2.3. THERMO-SALINOGRAPH MEASUREMENTS The Sea Surface Temperature, Salinity, and dissolved Oxygen concentration were measured continuously with an AQUAFLOW thermo- salinograph with the water intake at a depth of about 3 m. For the calibration of the salinity sensor, water samples were taken one to three times per day. 2.4. METEOROLOGICAL DATA Air temperature and humidity, relative wind velocity and direction as well as air pressure were measured and recorded by the underway logging system. 3. HYDROGRAPHIC MEASUREMENTS - DESCRIPTIONS, TECHNIQUES, AND CALIBRATIONS 3.1. ROSETTE SAMPLER AND SAMPLER BOTTLES A 24 position rosette sampler was used, fitted with 5 and 10 litre NOEX sampler bottles. A multi-valve system, developed at NIOZ, allowed closing the sampler bottles by computer command from the CTD operator. The general behaviour of the samplers was good, although repeated failure of a single sampler occurred. Such samples are identified to be suspect because of sampler failure. As soon as such failure was reported the sampler was serviced in order to overcome the problem. 3.2. TEMPERATURE MEASUREMENTS (S. Ober) Mounted on the CTD-rack was a high precision SBE35 reference temperature sensor, which recorded the temperature every time a sampler was closed. The data, obtained with this sensor are used to control, and if necessary to correct the calibration of the CTD temperature sensor. The final calibration of the temperature sensor S/N 2211 was completed before the end of the cruise. 3.3. PRESSURE MEASUREMENTS (S. Ober) On sampler bottles 4, 11, and 16 thermometer racks were mounted, fitted with SIS reversing electronic pressure sensors. On deck, prior to the CTD cast, these pressure sensors corrected internally for zero pressure. The readings of these sensors are used to control, and if necessary to correct the calibration of the CTD pressure sensor. The final calibration of the pressure sensor SBE-247 was completed before the end of the cruise. No further corrections of the calibration are required. 3.4. SALINITY MEASUREMENTS (M. Hiehle) Water was drawn from the samplers into a 0.25 litre glass sample bottle for the salinity determination after 3 times rinsing. The sample bottles had a stopper as well as a screw lid. The salinity of water samples (SALNTY) was determined by means of an Guildline Autosal 8400B salinometer. The salinometer was installed in a laboratory container, fitted with an air conditioning system. This kept the surrounding air temperature constant within 1°C. Initially the salinometer suffered from electro-magnetically induced instability, but these problems were at least partially overcome. The source of the problems could not be located. Homeward bound we were able to complete the salinity measurements. The final calibration of the conductivity sensor, based on these samples, was completed before the end of the cruise. From some deep CTD/rosette casts an extra duplicate sample was drawn. Salinity determinations from the duplicate samples obtained from independent runs are used to determine the reproducibility of the salinity determination. 3.5. OXYGEN MEASUREMENTS (D. Volkov) For the oxygen determination water samples were drawn in volume calibrated 120 ml pyrex glass bottles. Before drawing the sample each bottle was flushed with at least 3 times its volume. When the samples were drawn the temperature of the sample was determined. The determination of the volumetric dissolved oxygen concentration of water samples was carried out by means of a spectro-photometer technique, recently developed at NIOZ. Before and after the cruise the spectro- photometer will be inter-calibrated with a automatic end point determination Winkler method. It appeared that the software used to calculate the oxygen concentration from the measurements contained a flaw. The final calculations will be done at NIOZ. At each cast where samples for the oxygen determination were drawn, duplicate samples were drawn from the deepest water sampler in order to determine the precision of the analysis. 3.6. NUTRIENT AND TIC MEASUREMENTS (K. Bakker) From all sampler bottles samples were drawn for the determination of the nutrients silica, nitrite, nitrate and phosphate as well as TIC. The samples were collected in polyethylene sample bottles after three times rinsing. The samples were stored dark and cool at 4°C. NUTRIENTS All samples were analysed for the nutrients silicate, phosphate, nitrate and nitrite within 10 hours with an autoanalyzer based on colorimetry. The lab container was equipped with a Technicon TRAACS 800 autoanalyzer. The different nutrients were measured colorimetrical as described by Grashoff (1983). The samples, taken from the refrigerator, were directly poured into open polyethylene vials (6 ml) and put in the auto sampler-trays. A maximum of 60 samples in each run was analysed. The samples were not filtered before analysis. The different nutrients were measured colorimetrical as described by Grashoff (1983); • Silicate reacts with ammoniummolybdate to a yellow complex, after reduction with ascorbic acid the obtained blue silica-molybdenum complex was measured at 800nm (oxalic acid was used to prevent formation of the blue phosphate-molybdenum). • Phosphate reacts with ammoniummolybdate at pH 1.0, and potassiumantimonyltartrate was used as an inhibitor. The yellow phosphate-molybdenum complex was reduced by ascorbic acid to blue and measured at 880nm. • Nitrate was mixed with a buffer imidazole at pH 7.5 and reduced by a copperized-cadmium coil (efficiency> 98%) to nitrite, and measured as nitrite (see nitrite). The reduction-efficiency of the cadmium-column was measured in each run. • Nitrite was diazotated with sulphanilamide and naftylethylenediamine to a pink coloured complex and measured at 550nm. • The difference of the last two measurements gave the nitrate content Standards were prepared by diluting stock solutions of the different nutrients in the same nutrient depleted surface ocean water as used for the baseline water. The standards were kept dark and cool in the same refrigerator as the samples. Standards were prepared fresh every two days. Each run of the system had a correlation coefficient for the standards off at least 0.9998. The samples were measured from the surface to the bottom to get the smallest possible carry-over-effects. In every run a mixed nutrient standard containing silicate, phosphate and nitrate in a constant and well known ratio, a so-called nutrient- cocktail, was measured in duplicate. This cocktail is used as a guide to check the performance of the analysis. The reduction-efficiency of the cadmium-column in the nitrate lane was measured in each run. TIC Total inorganic Carbon (TIC) was measured with a Technicon Traacs 800 rapid flow auto-analyzer. The sample rate was set at 45 samples per hour, measuring all the CTD-Rosette samples, approx. 800 samples in total. All measurements were calibrated with a stock solution of Sodiumcarbonate diluted to Dicksonseawater containing a well-known concentration of TIC. The method used is still in a test case and has to be improved to work proper on ships. On a manifold the continuos sample or wash stream is acidified (pH below 1) before flowing over a dialyser. The dialyser contains a silicon membrane, separating the acidified sample-stream and the slightly alkaline coloured detection stream. In the sample stream the TIC is transferred to CO2 and forced by the low pH to the other side of the membrane in the slightly alkaline stream. This alkaline detection stream is coloured purple with Phenolphtaleine, by reaction with CO2 the pH drops and the solution will be de-coloured depending on the concentration of CO2 passing the membrane. This absorbing of CO2 is a kind of titration resulting in 2nd order calibration curves. The colour is measured in a flow-cell at 550nm. Due to obtain better statistical values the method is chemically tuned for the field range from 2000 to 2300 mM. The calibration standards were prepared fresh daily by diluting the TIC stock (200mM) using electronic pipettes with high reproducibility, into four calibrated volumetric flasks. The seawater used for diluting is the TIC standard seawater prepared by Dickson. Overall temperature to calculate from mmol/dm3 to mmol/kg was 22°C. As a reference, aged seawater was poisoned with Mercurychloride to make it "biology stable" and during the cruise being bottled for coulometric titration at home to check for any drifts. 3.7. CTD DATA COLLECTION AND PROCESSING (R.X. de Koster, S. Ober) For the data collection the Seasave software, produced by SBE, was used. The CTD data were recorded with a frequency of 24 data cycles per second. After each CTD cast the data were copied to a hard disk of the ship's computer network, and a daily back-up copy was made on tape. On board the up-cast data files were sub-sampled to produce files with CTD data corresponding to each water sample, taken with the rosette sampler. The CTD data were processed with the preliminary calibration data, and reduced to 0.5 s average ASCII files, which were used for the preliminary analysis of the data. Full data processing with the final calibration values will be completed at NIOZ, Texel. 3.8. LADCP DATA COLLECTION AND PROCESSING (M.T.J. Hillebrand) Current velocity and direction data from the entire water column were measured with two synchronized self-contained 300 kHz ADCP's mounted on the CTD frame. One of the two is downward looking, the other one upward-looking. Data collection takes place during the up and down cast of the CTD. The data are subsequently stored in solid state memory. The LDACP data collections was started a few minutes before the deployments of the CTD and was stopped immediately after the CTD was back on deck. Then the data were transferred from the internal solid state memory to the dedicated service computers, and subsequently copied in the appropriate directory on the ships computer network. A MATLAB master script file developed by Martin Visbeck, LDEO, version 4.0 Jan. 2000, has been used for data processing, data reduction and calculations of the current velocity and direction profiles. The master script file refers to several other sub-script files. Each of these sub-script files has a specific task controlled by the master script. Essential in the calculations are the correct input of start and stop times and start and stop positions of the CTD. The MATLAB programme plots the results of the measurements and calculations as well as several quality parameters. The content of the master script and the results of the water profile and bottom track calculations are also stored in three separate ASCII files. Malfunctioning of one of the ADCP's during a CTD cast, even for a short period is the cause of unreliable and wrong velocity/direction profiles. In such a case a manual inspection of the data with the RDI programme BBlist provides adapted start/stop times. One of the problems that occurred was to find the corresponding times and positions in the CTD file. The problem was tackled by Ronald de Koster through the Development of a programme that is able to search the CTD file for the desired times and generates corresponding positions and depth as output. 3.9. VMADCP DATA COLLECTION AND PROCESSING (S. Ober) The VMADCP data were collected with a dedicated service computer, together with the appropriate navigational data and the data from the pitch and roll sensor. Daily these data were transferred to the appropriate directory of the ships computer network. Data processing will take place at NIOZ after the cruise. Effort was spent during the cruise on improving and extending quality control and de-spiking of the stored navigational data in the VMADCP files. 3.10. PLANKTON NET PROCESSING (K. Peijnenburg, E. van Haastrecht) Speciation in the marine environment is generally thought to be slow. However, genetic population structure (the blueprint for speciation) of marine organisms is not well understood. The aim of this project is to gain more insight into the population structure of planktonic organisms, in particular of chaetognaths. Chaetognaths are hermaphroditic carnivorous planktonic organisms, which feed mainly on copepods. Particularly we are interested to compare the genetic structure of two species of chaetognaths, SAGITTA SETOSA and S. ELEGANS. S. SETOSA has a disjunct distribution occurring in coastal areas of the North Sea, Mediterranean and Black Sea. S. ELEGANS has a circum-Antarctic distribution, occurring in the North Atlantic and North Pacific. SAGITTA SETOSA was found in the North Sea, English Channel, Celtic Sea and Irish Sea (as expected). S.ELEGANS was found in the Celtic Sea and the Irish Sea, but was not present in any of the North Atlantic samples. In the NorthEast Atlantic, at the start of the transect, S. SERRATODENTATA was present. In the western part of the section, especially in the Irminger Sea, we found EUKROHNIA HAMATA and SAGITTA MAXIMA. S. LYRA was found on two occasions along the section. Live and intact specimens were preserved individually in lysis buffer for future DNA-analyses in the lab. Damaged, parasitized or unidentified individuals were preserved in formalin (4%) for morphological studies. From most stations a complete plankton sample has been preserved in formalin. 3.11. DATA MANAGEMENT (R.X. de Koster, J. Derksen, M. Hiehle) All raw data were copied to a cruise directory on the network computer in different groups of subdirectories. Subsequent processed data, final products, documents and figures were copied to separate subdirectories within the cruise directory. Daily back ups were made on magnetic tape. At the end of the cruise copies of the whole cruise directory have been made on CD-ROM. By help of a range of measurement forms all data were tracked. A final overview of the hydrographic stations, water samples, and the available raw date was made in a cruise summary file and a water sample file. 4. ACKNOWLEDGEMENTS The hydrographic research reported here is part of the NIOZ contribution to the Dutch CLIVAR programme (CLIVARNET). The plankton research is part of a PhD project by Katja Peijnenburg and a master's project by Eline van Haastrecht, carried out at the University of Amsterdam. I thank the ships crew for their professional support and active participation in the preparation and execution of the CAMP programme. The contributions of the colleagues from the NIOZ department of Physical Oceanography and from the supporting engineering and administrative departments are highly acknowledged. Appendix Cruise summary list CRUISE SUMMARY PELAGIA CRUISE 64PE169 ______________________________________________ Cast types: Event codes: Parameters: --------------- ------------ ------------- CTD ctd BE begin 1 salinity ROS ctd-rosette BO bottom 2 oxygen PNET EN end 3-7 nutrients Planktonnet 23 DIC ______________________________________________ CAST EVENT LATITUDE LONGITUDE UNC. CTD LADCP EXPOCODE STNNBR CASTNO TYPE DATE TIME CODE Deg Min. H Deg. Min. H DEPTH COMMENTS DATA file DATA file -------- ------ ------ ---- ----------- ----- ---- --- ---- - --- ----- - ----- --------- --------- --------- 64PE169 001 01 PNET 26-Sep-2000 14:13 BE 52 39.90 N 004 06.25 E 24 FAILED 64PE169 001 02 PNET 26-Sep-2000 14:19 BE 52 39.99 N 004 06.35 E 24 64PE169 002 01 PNET 27-Sep-2000 13:04 BE 50 31.31 N 000 12.11 W 64 64PE169 002 02 PNET 27-Sep-2000 13:16 BE 50 31.31 N 000 12.29 W 65 64PE169 003 01 ROS 29-Sep-2000 07:12 BE 51 48.84 N 005 46.02 W 64PE169 003 01 ROS 29-Sep-2000 07:15 BO 51 48.90 N 005 45.99 W 117 TEST 64PE169 003 01 ROS 29-Sep-2000 07:27 EN 51 49.47 N 005 45.97 W 64PE169 003 02 PNET 29-Sep-2000 07:36 BE 51 49.94 N 005 45.95 W 117 64PE169 004 01 PNET 29-Sep-2000 17:10 BE 53 19.31 N 005 26.10 W 102 64PE169 004 02 PNET 29-Sep-2000 17:22 BE 53 19.03 N 005 26.12 W 100 64PE169 005 01 ROS 30-Sep-2000 16:29 BE 55 45.00 N 008 59.98 W 64PE169 005 01 ROS 30-Sep-2000 16:32 BO 55 45.01 N 008 59.99 W 124 1-7, 23 P169051 C005 64PE169 005 01 ROS 30-Sep-2000 16:37 EN 55 45.00 N 008 59.96 W 64PE169 005 02 PNET 30-Sep-2000 17:47 BE 55 44.97 N 009 00.00 W 124 64PE169 006 01 CTD 30-Sep-2000 18:41 BE 55 49.00 N 009 25.97 W 64PE169 006 01 CTD 30-Sep-2000 18:56 BO 55 48.97 N 009 25.98 W 824 P169061 C006 64PE169 006 01 CTD 30-Sep-2000 19:11 EN 55 48.91 N 009 25.93 W 64PE169 007 01 ROS 30-Sep-2000 20:51 BE 55 53.03 N 009 51.09 W 64PE169 007 01 ROS 30-Sep-2000 21:25 BO 55 52.89 N 009 51.24 W 1920 1-7, 23 P169071 C007 64PE169 007 01 ROS 30-Sep-2000 22:19 EN 55 52.78 N 009 51.85 W 64PE169 008 01 ROS 01-Oct-2000 01:21 BE 56 01.97 N 010 43.03 W 64PE169 008 01 ROS 01-Oct-2000 02:04 BO 56 01.82 N 010 43.25 W 2359 1-7, 23 P169081 C008 64PE169 008 01 ROS 01-Oct-2000 03:14 EN 56 01.75 N 010 43.55 W 64PE169 009 01 ROS 01-Oct-2000 06:13 BE 56 09.04 N 011 30.05 W 64PE169 009 01 ROS 01-Oct-2000 06:57 BO 56 09.34 N 011 29.81 W 2640 1-7, 23 P169091 C009 64PE169 009 01 ROS 01-Oct-2000 07:59 EN 56 09.80 N 011 29.55 W 64PE169 009 02 PNET 01-Oct-2000 08:10 BE 56 09.93 N 011 29.60 W 2640 FAILED 64PE169 009 03 PNET 01-Oct-2000 08:23 BE 56 10.08 N 011 29.60 W 2640 64PE169 010 01 ROS 01-Oct-2000 14:32 BE 56 25.02 N 013 10.00 W 64PE169 010 01 ROS 01-Oct-2000 15:13 BO 56 24.92 N 013 09.51 W 2393 1-7, 23 P169101 C010 64PE169 010 01 ROS 01-Oct-2000 16:20 EN 56 24.54 N 013 08.58 W 64PE169 011 01 ROS 01-Oct-2000 18:20 BE 56 29.03 N 013 35.93 W 64PE169 011 01 ROS 01-Oct-2000 18:54 BO 56 29.22 N 013 35.95 W 1924 1-7, 23 P169111 C011 64PE169 011 01 ROS 01-Oct-2000 19:42 EN 56 29.50 N 013 36.87 W 64PE169 012 01 CTD 02-Oct-2000 09:13 BE 56 40.15 N 014 47.70 W 64PE169 012 01 CTD 02-Oct-2000 09:16 BO 56 40.18 N 014 47.60 W 185 P169121 C012 64PE169 012 01 CTD 02-Oct-2000 09:20 EN 56 40.23 N 014 47.53 W 64PE169 012 02 PNET 02-Oct-2000 09:28 BE 56 40.31 N 014 47.31 W 185 to 50 m 64PE169 012 03 PNET 02-Oct-2000 09:40 BE 56 40.41 N 014 47.16 W 185 to 100 m 64PE169 013 01 ROS 02-Oct-2000 13:52 BE 56 48.01 N 015 40.83 W 64PE169 013 01 ROS 02-Oct-2000 14:04 BO 56 47.95 N 015 40.69 W 648 1-7, 23 P169131 C013 64PE169 013 01 ROS 02-Oct-2000 14:23 EN 56 47.82 N 015 40.56 W 64PE169 014 01 ROS 02-Oct-2000 18:27 BE 56 58.01 N 016 31.97 W 64PE169 014 01 ROS 02-Oct-2000 18:50 BO 56 57.96 N 016 31.99 W 1218 1-7, 23 P169141 C014 64PE169 014 01 ROS 02-Oct-2000 19:29 EN 56 58.02 N 016 31.98 W 64PE169 015 01 PNET 02-Oct-2000 23:33 BE 57 05.94 N 017 26.84 W 1325 64PE169 015 02 PNET 02-Oct-2000 23:47 BE 57 05.93 N 017 26.89 W 1325 64PE169 015 03 ROS 03-Oct-2000 00:00 BE 57 05.88 N 017 26.93 W 64PE169 015 03 ROS 03-Oct-2000 00:24 BO 57 05.79 N 017 27.04 W 1325 1-7, 23 P169153 C015 64PE169 015 03 ROS 03-Oct-2000 01:08 EN 57 05.79 N 017 27.05 W 64PE169 016 01 ROS 03-Oct-2000 05:18 BE 57 14.00 N 018 21.91 W 64PE169 016 01 ROS 03-Oct-2000 05:44 BO 57 14.15 N 018 21.74 W 1301 1-7, 23 P169161 C016 64PE169 016 01 ROS 03-Oct-2000 06:27 EN 57 14.38 N 018 21.45 W 64PE169 017 01 ROS 03-Oct-2000 11:07 BE 57 21.99 N 019 15.17 W 64PE169 017 01 ROS 03-Oct-2000 11:25 BO 57 21.97 N 019 15.98 W 992 1-7, 23 P169171 C017 64PE169 017 01 ROS 03-Oct-2000 11:54 EN 57 21.97 N 019 15.37 W 64PE169 018 01 ROS 03-Oct-2000 17:14 BE 57 30.01 N 020 08.98 W 64PE169 018 01 ROS 03-Oct-2000 17:37 BO 57 30.04 N 020 08.87 W 1319 1-7, 23 P169181 C018 64PE169 018 01 ROS 03-Oct-2000 18:15 EN 57 30.24 N 020 08.75 W 64PE169 019 01 PNET 03-Oct-2000 20:35 BE 57 35.02 N 020 37.16 W 2166 64PE169 019 02 ROS 03-Oct-2000 20:49 BE 57 34.98 N 020 37.25 W 64PE169 019 02 ROS 03-Oct-2000 21:27 BO 57 35.19 N 020 37.41 W 2166 1-7, 23 P169192 C019 64PE169 019 02 ROS 03-Oct-2000 22:28 EN 57 35.60 N 020 37.84 W 64PE169 020 01 PNET 04-Oct-2000 08:20 BE 57 37.01 N 021 02.63 W 2321 64PE169 020 02 ROS 04-Oct-2000 08:35 BE 57 36.99 N 021 02.43 W 64PE169 020 02 ROS 04-Oct-2000 09:16 BO 57 36.98 N 021 01.96 W 2311 1-7, 23 P169202 C020 64PE169 020 02 ROS 04-Oct-2000 10:10 EN 57 36.68 N 021 01.18 W 64PE169 021 01 ROS 04-Oct-2000 13:34 BE 57 42.92 N 021 29.77 W 64PE169 021 01 ROS 04-Oct-2000 14:25 BO 57 42.48 N 021 30.20 W 2670 1-7, 23 P169211 C021 64PE169 021 01 ROS 04-Oct-2000 15:29 EN 57 41.94 N 021 30.44 W 64PE169 022 01 ROS 04-Oct-2000 18:31 BE 57 46.96 N 021 54.99 W 64PE169 022 01 ROS 04-Oct-2000 19:29 BO 57 46.44 N 021 55.10 W 3061 1-7, 23 P169221 64PE169 022 01 ROS 04-Oct-2000 20:52 EN 57 45.40 N 021 56.49 W no LADCP 64PE169 022 02 PNET 04-Oct-2000 21:04 BE 57 45.23 N 021 56.66 W 3061 64PE169 023 01 ROS 05-Oct-2000 00:57 BE 57 54.96 N 022 48.69 W 64PE169 023 01 ROS 05-Oct-2000 01:50 BO 57 54.91 N 022 48.99 W 3000 1-7, 23 P169231 C023 64PE169 023 01 ROS 05-Oct-2000 03:16 EN 57 55.14 N 022 48.94 W 64PE169 024 01 ROS 05-Oct-2000 07:06 BE 58 04.06 N 023 45.01 W 64PE169 024 01 ROS 05-Oct-2000 07:55 BO 58 04.66 N 023 45.04 W 2948 1-7, 23 P169241 C023 64PE169 024 01 ROS 05-Oct-2000 09:05 EN 58 05.23 N 023 45.98 W 64PE169 024 02 PNET 05-Oct-2000 09:24 BE 58 05.29 N 023 46.09 W 2938 64PE169 025 01 ROS 05-Oct-2000 12:53 BE 58 12.06 N 024 38.86 W 64PE169 025 01 ROS 05-Oct-2000 13:41 BO 58 12.30 N 024 38.31 W 2795 1-7, 23 P169251 C025 64PE169 025 01 ROS 05-Oct-2000 14:43 EN 58 12.63 N 024 37.66 W 64PE169 026 01 ROS 05-Oct-2000 18:07 BE 58 20.02 N 025 32.07 W 64PE169 026 01 ROS 05-Oct-2000 18:54 BO 58 19.89 N 025 32.37 W 2785 1-7, 23 P169261 C026 64PE169 026 01 ROS 05-Oct-2000 20:08 EN 58 19.55 N 025 32.89 W 64PE169 027 01 ROS 06-Oct-2000 00:23 BE 58 25.93 N 026 32.92 W 64PE169 027 01 ROS 06-Oct-2000 01:09 BO 58 25.98 N 026 32.77 W 2663 1-7, 23 P169271 C027 64PE169 027 01 ROS 06-Oct-2000 02:24 EN 58 26.26 N 026 32.36 W 64PE169 028 01 ROS 06-Oct-2000 06:04 BE 58 30.03 N 027 23.96 W 64PE169 028 01 ROS 06-Oct-2000 06:48 BO 58 30.16 N 027 24.29 W 2224 1-7, 23 P169281 C028 64PE169 028 01 ROS 06-Oct-2000 07:54 EN 58 30.22 N 027 24.70 W 64PE169 028 02 PNET 06-Oct-2000 08:08 BE 58 30.22 N 027 24.62 W 2224 failed 64PE169 028 03 PNET 06-Oct-2000 08:30 BE 58 30.49 N 027 24.27 W 2224 to 200 m 64PE169 029 01 ROS 06-Oct-2000 12:28 BE 58 34.99 N 028 19.89 W 64PE169 029 01 ROS 06-Oct-2000 13:07 BO 58 34.98 N 028 19.58 W 2112 1-7, 23 P169291 C029 64PE169 029 01 ROS 06-Oct-2000 13:53 EN 58 34.94 N 028 19.45 W 64PE169 030 01 ROS 06-Oct-2000 17:50 BE 58 41.02 N 029 14.01 W 64PE169 030 01 ROS 06-Oct-2000 18:27 BO 58 40.99 N 029 13.94 W 2229 1-7, 23 P169301 C030 64PE169 030 01 ROS 06-Oct-2000 19:29 EN 58 40.73 N 029 13.73 W 64PE169 031 01 ROS 06-Oct-2000 23:36 BE 58 44.99 N 030 11.89 W 64PE169 031 01 ROS 07-Oct-2000 00:05 BO 58 44.98 N 030 11.63 W 1693 1-7, 23 P169311 C031 64PE169 031 01 ROS 07-Oct-2000 00:52 EN 58 44.99 N 030 11.55 W 64PE169 032 01 ROS 07-Oct-2000 05:10 BE 58 50.98 N 031 06.91 W 64PE169 032 01 ROS 07-Oct-2000 05:35 BO 58 50.83 N 031 06.68 W 1480 1-7, 23 P169321 C032 64PE169 032 01 ROS 07-Oct-2000 06:20 EN 58 50.37 N 031 06.84 W 64PE169 033 01 ROS 07-Oct-2000 10:38 BE 58 56.05 N 032 01.23 W 64PE169 033 01 ROS 07-Oct-2000 11:06 BO 58 56.15 N 032 01.50 W 1790 1-7, 23 P169331 C033 64PE169 033 01 ROS 07-Oct-2000 11:48 EN 58 56.31 N 032 01.30 W 64PE169 034 01 ROS 08-Oct-2000 17:58 BE 59 11.99 N 034 55.97 W 64PE169 034 01 ROS 08-Oct-2000 18:40 BO 59 11.77 N 034 56.20 W 2530 1-7, 23 P169341 C034 64PE169 034 01 ROS 08-Oct-2000 19:48 EN 59 11.05 N 034 56.97 W 64PE169 034 02 PNET 08-Oct-2000 20:01 BE 59 10.90 N 034 57.27 W 2530 64PE169 035 01 ROS 09-Oct-2000 00:17 BE 59 17.96 N 035 53.80 W 64PE169 035 01 ROS 09-Oct-2000 01:12 BO 59 17.78 N 035 53.73 W 3117 1-7, 23 P169351 C035 64PE169 035 01 ROS 09-Oct-2000 02:35 EN 59 17.26 N 035 53.72 W 64PE169 036 01 ROS 09-Oct-2000 06:31 BE 59 23.01 N 036 51.00 W 64PE169 036 01 ROS 09-Oct-2000 07:27 BO 59 23.49 N 036 51.00 W 3127 1-7, 23 P169361 C036 64PE169 036 01 ROS 09-Oct-2000 08:45 EN 59 24.55 N 036 50.33 W 64PE169 037 01 ROS 09-Oct-2000 12:21 BE 59 27.98 N 037 46.87 W 64PE169 037 01 ROS 09-Oct-2000 13:16 BO 59 27.92 N 037 46.70 W 3142 1-7, 23 P169371 C037 64PE169 037 01 ROS 09-Oct-2000 14:26 EN 59 27.81 N 037 46.52 W 64PE169 037 02 PNET 09-Oct-2000 14:38 BE 59 27.81 N 037 46.51 W 3142 to 200 m 64PE169 038 01 ROS 09-Oct-2000 18:37 BE 59 34.09 N 038 46.89 W 64PE169 038 01 ROS 09-Oct-2000 19:29 BO 59 34.20 N 038 46.32 W 2989 1-7, 23 P169381 C038 64PE169 038 01 ROS 09-Oct-2000 20:49 EN 59 33.76 N 038 45.83 W 64PE169 039 01 ROS 10-Oct-2000 00:19 BE 59 40.01 N 039 44.99 W 64PE169 039 01 ROS 10-Oct-2000 01:04 BO 59 40.04 N 039 44.69 W 2806 1-7, 23 P169391 C039 64PE169 039 01 ROS 10-Oct-2000 02:22 EN 59 40.10 N 039 44.24 W 64PE169 040 01 ROS 10-Oct-2000 05:39 BE 59 44.98 N 040 44.03 W 64PE169 040 01 ROS 10-Oct-2000 06:23 BO 59 44.69 N 040 44.61 W 2413 1-7, 23 P169401 C040 64PE169 040 01 ROS 10-Oct-2000 07:32 EN 59 44.23 N 040 44.95 W 64PE169 040 02 PNET 10-Oct-2000 07:44 BE 59 44.15 N 040 45.03 W 2408 64PE169 041 01 ROS 10-Oct-2000 11:18 BE 59 51.02 N 041 45.00 W 64PE169 041 01 ROS 10-Oct-2000 11:52 BO 59 50.68 N 041 44.86 W 1846 1-7, 23 P169411 C041 64PE169 041 01 ROS 10-Oct-2000 12:36 EN 59 50.31 N 041 44.77 W 64PE169 042 01 ROS 10-Oct-2000 14:21 BE 59 53.99 N 042 15.07 W 64PE169 042 01 ROS 10-Oct-2000 14:29 BO 59 53.89 N 042 15.10 W 391 1-7, 23 P169421 C042 64PE169 042 01 ROS 10-Oct-2000 14:39 EN 59 53.84 N 042 15.13 W 64PE169 043 01 ROS 10-Oct-2000 16:24 BE 59 56.97 N 042 45.02 W 64PE169 043 01 ROS 10-Oct-2000 16:28 BO 59 56.89 N 042 45.13 W 193 1-7, 23 P169431 C043 64PE169 043 01 ROS 10-Oct-2000 16:36 EN 59 56.75 N 042 45.29 W 64PE169 043 02 PNET 10-Oct-2000 16:50 BE 59 56.50 N 042 45.75 W 189 to 185 m 64PE169 043 03 PNET 10-Oct-2000 17:13 BE 59 56.11 N 042 46.51 W 189 to 185 m 64PE169 044 01 ROS 11-Oct-2000 23:32 BE 59 06.00 N 033 53.92 W 64PE169 044 01 ROS 12-Oct-2000 00:16 BO 59 06.01 N 033 53.71 W 2512 1-7, 23 P169441 C044 64PE169 044 01 ROS 12-Oct-2000 01:21 EN 59 06.28 N 033 53.38 W 64PE169 045 01 ROS 12-Oct-2000 04:15 BE 59 00.99 N 033 00.00 W 64PE169 045 01 ROS 12-Oct-2000 04:53 BO 59 01.33 N 033 00.01 W 2298 1-7, 23 P169451 C045 64PE169 045 01 ROS 12-Oct-2000 05:54 EN 59 01.91 N 033 00.61 W 64PE169 045 02 PNET 12-Oct-2000 06:08 BE 59 02.13 N 033 00.59 W 2341 to 200 m 64PE169 046 01 PNET 16-Oct-2000 08:07 BE 58 41.18 N 006 00.70 W 123 to bottom 64PE169 047 01 PNET 16-Oct-2000 16:37 BE 58 41.32 N 004 01.35 W 115 to bottom 64PE169 047 02 PNET 16-Oct-2000 16:53 BE 58 41.24 N 004 01.53 W 114 to bottom 64PE169 048 01 PNET 17-Oct-2000 06:32 BE 57 12.45 N 000 38.83 W 69 to bottom 64PE169 049 01 PNET 17-Oct-2000 18:34 BE 55 39.78 N 001 41.25 E 75 to bottom 64PE169 050 01 PNET 18-Oct-2000 06:20 BE 54 22.44 N 003 33.72 E 46 to bottom CCHDO DATA PROCESSING NOTES Date Contact Data Type Event ---------- ------------ ----------- --------------------------------------- 2008-04-14 van Aken CTD/BTL/SUM Submitted; also PDF cruise report A few weeks ago I did submit the hydrographic data of the former AR7E section from the year 2000. Please inform me whether they were reaceived and readable for you. If So I will submit more data from this section. 2008-04-22 Key BTL Assigned Qual flags 1. I QC'ed all the bottle values (only a very few set to 3, notes at end) 2. For the bottle flag (bf), I set to 2 except in those cases where there were no bottle values. When no bottle values I set the bottle flag to 9 3. I generated a CTDSAL flag (all set to 2), but did not QC the ctdsal assuming Dave or someone better trained in CTDSAL would be better suited to this task. QC notes, my normal shorthand Oxygen pe169data_qc("pe169","pressure","oxygen",type="b",cuton="station") pe169data_qc("pe169","temperature","oxygen",type="b",cuton="station") pe169data_qc("pe169","ctdsal","oxygen",type="b",cuton="station") pe169data_qc("pe169","nitrate","oxygen",type="b",cuton="station") 9-1-1 lo vs T 10-1-1 lo vs T 21-1-11 lo vs P,NO3 21-1-13 lo vs P,NO3 21-1-15 lo vs P,NO3 24-1-11 lo vs P,NO3 25-1-13 lo vs P,NO3 31-1-7 lo vs P 31-1-9 lo vs P 32-1-9 lo vs P 33-1-9 lo vs P 42-1-6 hi vs T,P mark 3 43-1-4 hi vs T, P mark 3 Nitrate pe169data_qc("pe169","pressure","nitrate",type="b",cuton="station") 9-1-6 bit lo vs P Phosphate pe169data_qc("pe169","pressure","phosphate",type="b",cuton="station") pe169data_qc("pe169","nitrate","phosphate") 43-1-4 hi vs NO3 Silicate pe169data_qc("pe169","pressure","silicate",type="b",cuton="station") pe169data_qc("pe169","ctdsal","silicate",type="b",cuton="station") 9-1-6 lo vs P 23-1-5 lo vs P,S 23-1-6 lo vs P TCO2 pe169data_qc("pe169","pressure","tco2",type="b",cuton="station") pe169data_qc("pe169","nitrate","tco2",type="b",cuton="station") 14-1-3 bit hi vs P 18-1-10 bit lo vs P,no3 mark 3 24-1-13 hi vs no3 37-1-4 lo vs P 37-1-10 lo vs P,NO3 mark 3 39-1-3 lo vs P 44-1-13 hi vs P,NO3 mark 3