CRUISE REPORT: AR07E (Updated APR 2015) Highlights Cruise Summary Information Section Designation AR07E (aka: 64PE312) Expedition designation (ExpoCodes) 64PE20090924 Chief Scientists Hendrik M. van Aken / NIOZ Dates 2009 SEP 24 - 2009 PCT 13 Ship RV Pelagia Ports of call Scheveningen to Galway 59° 56.88' N Geographic Boundaries 42° 45.19' W 9° 0' W 52° 27.94' N Stations 42 Floats and drifters deployed 0 Moorings deployed or recovered 1 deployed, 1 recovered Contact Information: 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 • aken@nioz.nl RV Pelagia Shipboard Report: Cruise 64PE312, Project THOR H.M. van Aken Chief Scientist THOR 2009 NIOZ Royal Netherlands Institute for Sea Research Texel, 2009 Table of contents nr. Chapter page Acknowledgements 3 1 Cruise Narrative 4 1.1 Highlights 4 1.2 Cruise Summary Information 4 1.3 List of Principal Investigators 5 1.4 Scientific Programme and Methods 5 1.5 List of Cruise Participants 6 2 Underway Measurements 7 2.1 Navigation 7 2.2 Echo Sounding 7 2.3 Thermo-Salinograph Measurements 7 2.4 Meteorological data 7 2.5 Vessel mounted ADCP measurements 7 3 Hydrographic Measurements -Descriptions, Techniques, and Calibrations 8 3.1 Conductivity-temperature-depth probe (CTD) 8 3.2 Reference temperature measurements 8 3.3 Data Management 8 4 Preliminary Results 9 4.1 The Irminger Sea 9 4.2 The Iceland Basin 10 4.3 The Rockall Trough 11 Appendix A (cruise summary file) 12 Description of the parameters in *.CTD files 17 Appendix B (mooring summary file) 22 Acknowledgements The research reported here has received funding from the European Community's 7th framework programme (FP7/2007-2013) under grant agreement No. GA212643 (THOR: "Thermohaline Overturning – at Risk", 2008-2012) and also contributes to the Dutch CLIVARNET Atlantic Monitoring Programme (CAMP). The moored equipment was funded by the LOCO investment programme of the Netherlands Foundation for Scientific Research (NWO). 1 Cruise Narrative 1.1 Highlights a: Goals: The re-survey of former WOCE Hydrographic Program Repeat Section A1/AR7E between Ireland and Greenland with an additional section near Ireland and the recovery and deployment of a long term mooring in the Irminger Sea as part of the EU THOR programme. b: Expedition Designation (EXPOCODE): 64PE312 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, Captain: Mr. John Ellen length 66 m. beam 12.8 m draft 4 m maximum speed 11 knots e: Ports of Call: Scheveningen to Galway f: Cruise dates: September 24 2009 to October 13 2009 1.2 Cruise Summary Information Summary In the evening of Thursday 24 September, RV Pelagia left Scheveningen and set course to the position in the Irminger Sea where the LOCO2 profiling mooring has been be recovered and re-deployed. After leaving port the underway recording system for navigational, meteorological, ADCP, and sea surface data was activated. After the mooring activities a CTD survey was carried out along the AR7E section between Greenland and Ireland, and along an additional small section near Ireland. On October 13 RV Pelagia entered the port of Galway. Cruise Track The cruise was carried out in the northern North Atlantic Ocean. The cruise track is shown in figure 1 Figure 1: Cruise track of Pelagia cruise 64PE312, from Scheveningen (Netherlands) to Galway (Ireland). Mooring Deployments Mooring LOCO2-6 was recovered after which mooring LOCO2-7 was deployed on October 2. The mooring operations took place during daytime. The position of the deployment of LOCO2-7 is: 59°12.21'N, 39°30.49'W (cross in Figure 2), the deployment time is 17:44 UTC. During the last 10 minutes before deployment Pelagia has followed a course over ground in the direction of 314° relative to North. Both LOCO2-6 and 2-7 are profiling moorings, fitted with a McLane/FSI CTD profiler, two RDI Long Ranger ADCPs and an SBE Microcat CTD. They were deployed at a depth of about 3000 m at the foot of the East Greenland slope, approximately in the centre of the Irminger Gyre. See also Appendix B. Number of Hydrographic Stations A total of 42 CTD casts were performed along the former WOCE AR7E section, and 6 stations along the additional section across the Irish continental slope. The location of these casts is shown in figure 2. The mutual station distance is about 30 nautical miles, while over steep topography that distance was reduced to about 15 miles. Due to adverse weather conditions a planned CTD station 30 miles east of the Hatton Bank had to be cancelled. Further information on the time, location can be found in the Cruise Summary File (Appendix A). Figure 2: Hydrographic stations along the former WOCE hydrographic Program section AR7E, surveyed during Pelagia cruise 64PE312. 1.3 List of principal Investigators Name Responsibility Affiliation ----------------- ----------------- ------------ Dr. H.M. van Aken Ocean hydrography NIOZ/Texel Ir. R. Gelderloos moorings KNMI/De Bilt 1.4 Scientific Programme and Methods The dual goal of the research carried out during the cruise was to establish the hydrography along a zonal section between Greenland and Ireland to allow the study of inter-annual hydrographic variability and to service an instrumented mooring in the Irminger Sea, both as part of the EU THOR programme, and as an extension of the CAMP monitoring programme of NIOZ. The zonal section is the former A1E/AR7E section of the WOCE Hydrographic Programme, which has been surveyed near-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. The CTD 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 12 m from the bottom, until the bottom switch indicated the proximity of the bottom. During the up-cast a few temperature samples where taken with the SBE35 reference thermometer at prescribed depths, when the CTD winch was stopped. The mooring which was recovered (LOCO2-6) and re-deployed (LOCO2-7) was funded as part of the Dutch Long-term Ocean Climate Observations programme (LOCO). This programme aims at the establishment of a monitoring system which records climate relevant oceanographic parameters at several locations in the world ocean. The moorings contain a profiling CTD which will record on a daily basis profiles of temperature and salinity between ~2400 and 160 m depth (McLane profiler). Additionally ADCPs will record the velocity profiles in the upper and lower 600 m. Mooring LOCO2-7 is the 7-th of a series of moorings, each deployed for one year in the centre of the Irminger gyre. On board data processing of the ACDP data was carried out. From the profiler data preliminary ASCII files with temperature and density as functions of the pressure were produced. Not enough time was available for complete data processing, which will be carried out back at NIOZ. Because of a misunderstanding the Microcat was redeployed before the data were retrieved. These data will become available only when the mooring is recovered in 2010. In support of the CTD observations the sea surface temperature and salinity were recorded continuously as well as several meteorological parameters. Also the currents in the upper 600 m were recorded with the vessel mounted acoustic Doppler current profiler (VMADCP). 1.5 Lists of Cruise Participants Scientific crew person responsibility Institute ---------------- ----------------------- ------------ H.M. van Aken Chief Scientist NIOZ/Texel R. Gelderloos Moorings & hydrowatch KNMI/De Bilt A.J. Asjes Electronic engineering NIOZ/Texel L. Wuis Marine engineering NIOZ/Texel B.A. Grijseels Hydrowatch IMAU/Utrecht K.T. Frankhuizen Hydrowatch IMAU/Utrecht M.L.M. Witteveen Hydrowatch IMAU/Utrecht P. Bakker Hydrowatch IMAU/Utrecht V. Kamphuis Hydrowatch IMAU/Utrecht F. Kellerer Irish National observer NUI/Galway NIOZ: Royal Netherlands Institute for Sea Research, Texe IMAU: Institute for Marine and Atmospheric Research, Utrecht University. MI: Marine Institute, Galway, Ireland Ships crew J.C. Ellen Captain J. van Haaren First Mate E. Verheyen Second Mate J. Seepma Chief Engineer M. Frankfort Second Engineer S. Maas Able Seaman R. van der Heide Able Seaman J. Vitoria Able Seaman G. Vermeulen Able Seaman A. Lont Cook A. Popov Steward 2 Underway Measurements 2.1 Navigation A differential GPS receiver was used for the determination of the position. The data from the Sercel GPS receiver and the gyro compass were recorded every ten seconds in the underway data logging system. An additional Seapath dual antenna GPS receiver also determined the ship’s heading. Data processing will be carried out back at NIOZ. 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. 2.3 Thermo-Salinograph Measurements The Sea Surface Temperature and Salinity were measured continuously with the SBE Seacat thermo-salinograph system with the water intake at a depth of about 3 m. These sensors will be calibrated by comparison with the CTD-cast at 3 m. 2.4 Meteorological data Air temperature and humidity, relative wind velocity and direction as well as air pressure and solar radiation were measured and recorded by the underway logging system. The connection with the solarimeter appeared to be defect. Therefor the solar radiation data are missing from the meteorological records. 2.5 ADCP measurements The 75 kHz ADCP mounted under the Pelagia has been used to collect current data from the Irish continental break onwards. The final processing of the data will take place back at Texel. The VMADCP data were collected with a dedicated service computer, together with the appropriate navigational data. Daily these data were transferred to the appropriate directory of the ships computer network. On board the first phase of VMADCP data processing took place. 3 Hydrographic measurements - Descriptions, Techniques, and Calibrations 3.1 CTD Data Collection and Processing A recently (August 2009) calibrated SBE 9/11+ CTD, SN-0942, has been used to measure temperature, salinity, and turbidity profiles. The sensors mounted on the CTD were an SBE3 temperature sensor SN-034384, SBE4 conductivity sensor SN-040995, a Digiquartz pressure sensor SN-113589, and a Wetlab CStar beam transmission meter SN-CST-1112DR with a path length of 25 cm. The CTD was mounted in a special rack, which did not contain water samplers. The sensors of the CTD were recently calibrated by the manufacturer. To control the temperature measurements an SBE 35 Deep Ocean Standards thermometer was mounted next to the temperature sensor of the CTD. Reference temperature samples were taken with this thermometer in deep low-gradient layers. For the data collection the new Seasave software for Windows (version V 7.18c), 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, where a daily back-up copy was made. The CTD data were processed with the recently obtained calibration data, using the Seasoft software, also produced by SBE, and reduced to 1 dbar average ASCII files. These were used for the preliminary analysis of the data. The final data processing will be completed at Royal NIOZ, Texel. 3.2 Reference temperature measurements Mounted on the CTD-rack was a high precision SBE35 reference temperature sensor, which recorded the temperature on commands given by the CTD operator. These SBE35 temperature data will be used to control the calibration of the CTD temperature sensor. The preliminary difference TSBE35-TCTD amounts to - 0.002°C (±0.001°C stdev). 3.3 Data Management All raw data were copied to a cruise directory on the network computer in different groups of sub-directories. Subsequent processed data, final products, documents and figures were copied to separate sub-directories within the cruise directory. Back ups of the network disks were made on a daily basis. At the end of the cruise copies of the whole cruise directory have been made on portable hard-disk. By help of paper measurement forms and computerized data inventory files all data are tracked. A final inventory of the mooring activities, hydrographic stations, and the available raw data files was made in a cruise summary file (Appendix A). 4 Preliminary results 4.1 The Irminger Sea The θ-S diagram for the CTD stations in the Irminger Sea (Figure 3) shows that the most saline water in this basin is observed over the Reykjanes Ridge (stations 15 to 17) and over the continental slope of Greenland (stations 6 en 7). Figure 3: θ-S diagram for the CTD stations in the Irminger Sea, from the Greenland continental shelf to the top of the Reykjanes Ridge. After the cold winter of 2008 a cold and fresh Sub-Arctic Mode Water was formed in the Irminger Sea with a potential temperature of about 4.5°C and a salinity of 34.85. During the THOR cruise from 2009 the central Irminger Sea was strongly salinified compared to 2008, with sub-surface salinity maxima from 34.93 to 35.01 near the density levels of the 2008 Mode Water. At the levels of the Labrador Sea Water (LSW) class or vintage, formed in 2000, the θ-S properties hardly had changed, compared to 2007. No trace was found yet of the Labrador Sea Water vintage, formed by deep convection in 2008. The high-density Labrador Sea water, formed in the cold period of 1988 to 1994 (LSW94), still visible as a deep salinity minimum in the Irminger Sea in 2007, could not be recognized in 2009 from the q-S properties. The near-bottom temperatures and salinities in the homogeneous near bottom layers in the western half of the Irminger Sea reflect that the temperature and salinity of the Denmark Strait Overflow Water is colder and less saline than observed during hydrographic surveys in 2007 and 2008. Figure 4: Profiles of potential temperature, salinity, and potential density anomaly from the CTD casts in the Irminger Sea. The hydrographic profiles from the Irminger Sea (Figure 4) show a doming of the isopycnals in the cyclonic Irminger gyre (part of the sub-arctic gyre), with stations 8 to 10 in the centre of the gyre. These stations also show the lowest sub-surface salinities and temperatures. The density distribution in the upper 1000 m agrees with a southward baroclinic geostrophic transport west of station 8 relative to 1000 dbar of about 1.5 Sv (1 Sv = 106 m3/s), and a northward transport between station 8 and station 17 over the Reykjanes Ridge of about 4.4 Sv. The deep density differences between neighbouring CTD-stations over the continental slope of Greenland agree with a strong bottom intensified southward flow of Denmark Strait Overflow Water (DSOW) along the Greenlandic slope. The deep density gradient between stations 15 and 17 suggest a northward baroclinic flow of the saline Icelandic Slope Water en the upper parts of the North East Atlantic Deep Water along the Reykjanes ridge. 4.2 The Iceland Basin In the upper layers of the Iceland Basin the main difference with the 2007 survey is a less strong gradient in the frontal zone of the North Atlantic Current in 2009. The range of the near surface salinity in the Iceland Basin is similar in both years. Figure 5: θ-S diagram for the CTD stations in the Iceland Basin between the Reykjanes Ridge and the Hatton Bank. The θ-S diagram and the hydrographic profiles for the 2009 survey of the Iceland Basin (Figures 5 and 6) again shows a thick layer with a salinity minimum. This is a combination of the LSW vintages formed in 1988 to 1994 and in 2004. The latter occupied the deeper part of the basin and is absent west of 27°W. the salinity value in the salinity minimum connected with the LSW2000 vintage has increased with over 0.01 since 2007. the salinity increase of the LSW94 class since 2007 is smaller, ~0.007. The relative salinity maximum, connected with the intermediate saline layer between both LSW cores increased in salinity value, but decreased in amplitude, compare to the salinities of both LSW cores. Figure 6: Profiles of potential temperature, salinity, and potential density anomaly from the CTD casts in the Iceland Basin. As in 2007 a near bottom layer of Iceland-Scotland Overflow (ISOW) water can be recognized as the coldest water over most of the western slope in the Iceland Basin. The salinity and potential temperature of this water type in 2009 is warmer and more saline than in 2007. ISOW shows in the hydrographic profiles as a thick layer with near homogeneous, relatively high salinity. The relatively high potential density in these ISOW layers agrees with a baroclinic bottom intensified southward flow of ISOW over the western slope of the Iceland Basin. East of the deepest point in the Iceland Basin, The Maury Channel, the bottom density is also relatively high compared to the same levels at the station in the Maury Channel, indicative for a bottom intensified northward baroclinic flow over the slope of the Hatton Bank. The usual near-bottom salinity minimum due to the presence of Lower Deep Water in this northward flow is absent in the 2009 data. 4.3 The Rockall Trough Compared to the other Irminger and Iceland Basins, the Rockall Trough does show less intrusive structures (Figure 7). Overall the q-S structure in 2009 hardly differs from the structure observed in 2007. The salinity minimum near q = 3.2°C, connected with the presence of a core of LSW, decreased in salinity with only about 0.003 over the last 2 years. Figure 7: θ-S diagram for the CTD stations in Rockall Trough. Below the salinity minimum of the LSW core, a salinity maximum of slightly over 34.93 is observed at a depth of about 2700 m, related to the aged ISOW. Near the bottom near 2900 m on the additional CTD section a salinity minimum of S = 34.92 is observed, related to the presence of the upper layers of Lower Deep Water (LDW), extending from the Porcupine Abyssal Plain into the Rockall Trough. The low salinity is caused by the presence of small amounts of Antarctic Bottom Water in the LDW. In 2007 the LDW reached further north, and could also be observed at the CTD station on the AR7E section. Appendix A. Cruise Summary Pelagia Cruise 64PE312 CAST TYPE CTD CTD cast MOR Mooring EVENT CODE BE Begin BO Bottom EN End RE Recovered DE Deployed SHIP/CRS. WOCE STN CAST DATE TIME EVENT LATITUDE LONGITUDE UNC. MAX COMMENTS CTD EXPOCODE SECT. NBR NO TYPE UTC CODE Deg Min. H Deg Min. H NAV DEPTH PRESS DATA file ------- ----- --- ---- ---- ----------- ----- ----- --- ----- - --- ----- - --- ----- ----- ---------------- --------- 64PE312 01 1 CTD 28-Sep-2009 09:31 BE 52 27.96 N 15 14.30 W GPS 1373 64PE312 01 1 CTD 28-Sep-2009 09:36 BO 52 27.94 N 15 14.31 W GPS 1373 203 test ctd PE312011 64PE312 01 1 CTD 28-Sep-2009 09:42 EN 52 27.95 N 15 14.28 W GPS 1373 64PE312 02 1 MOR 02-Oct-2009 09:51 RE 59 12.00 N 39 31.54 W GPS 3048 mooring LOCO2-6 64PE312 03 1 MOR 02-Oct-2009 17:44 DE 59 12.21 N 39 30.49 W GPS 3042 mooring LOCO2-7 64PE312 AR7E 04 1 CTD 03-Oct-2009 08:58 BE 59 56.88 N 42 45.19 W GPS 195 64PE312 AR7E 04 1 CTD 03-Oct-2009 09:03 BO 59 56.87 N 42 45.15 W GPS 196 183 PE312041 64PE312 AR7E 04 1 CTD 03-Oct-2009 09:10 EN 59 56.86 N 42 45.11 W GPS 194 64PE312 AR7E 05 1 CTD 03-Oct-2009 11:13 BE 59 53.91 N 42 15.17 W GPS 388 64PE312 AR7E 05 1 CTD 03-Oct-2009 11:22 BO 59 53.89 N 42 15.18 W GPS 388 376 PE312051 64PE312 AR7E 05 1 CTD 03-Oct-2009 11:32 EN 59 53.92 N 42 15.18 W GPS 388 64PE312 AR7E 06 1 CTD 03-Oct-2009 13:24 BE 59 50.66 N 41 44.72 W GPS 1847 64PE312 AR7E 06 1 CTD 03-Oct-2009 14:00 BO 59 50.53 N 41 44.49 W GPS 1853 1847 PE312061 64PE312 AR7E 06 1 CTD 03-Oct-2009 14:40 EN 59 50.26 N 41 44.36 W GPS 1859 64PE312 AR7E 07 1 CTD 03-Oct-2009 18:38 BE 59 44.68 N 40 44.61 W GPS 2414 64PE312 AR7E 07 1 CTD 03-Oct-2009 19:17 BO 59 44.68 N 40 44.59 W GPS 2414 2415 PE312071 64PE312 AR7E 07 1 CTD 03-Oct-2009 20:05 EN 59 44.69 N 40 44.58 W GPS 2414 64PE312 AR7E 08 1 CTD 03-Oct-2009 23:37 BE 59 40.05 N 39 44.69 W GPS 2807 64PE312 AR7E 08 1 CTD 04-Oct-2009 00:26 BO 59 40.03 N 39 44.70 W GPS 2807 2821 PE312081 64PE312 AR7E 08 1 CTD 04-Oct-2009 01:28 EN 59 40.07 N 39 44.60 W GPS 2807 64PE312 AR7E 09 1 CTD 04-Oct-2009 04:47 BE 59 34.20 N 38 46.33 W GPS 2984 64PE312 AR7E 09 1 CTD 04-Oct-2009 05:39 BO 59 34.20 N 38 46.33 W GPS 2984 3006 PE312091 64PE312 AR7E 09 1 CTD 04-Oct-2009 06:45 EN 59 34.20 N 38 46.34 W GPS 2984 64PE312 AR7E 10 1 CTD 04-Oct-2009 10:20 BE 59 27.92 N 37 46.69 W GPS 3142 64PE312 AR7E 10 1 CTD 04-Oct-2009 11:18 BO 59 27.90 N 37 46.70 W GPS 3142 3164 PE312101 64PE312 AR7E 10 1 CTD 04-Oct-2009 12:26 EN 59 27.85 N 37 46.77 W GPS 3136 64PE312 AR7E 11 1 CTD 04-Oct-2009 15:44 BE 59 23.48 N 36 51.24 W GPS 3124 64PE312 AR7E 11 1 CTD 04-Oct-2009 16:37 BO 59 23.49 N 36 51.00 W GPS 3124 3148 PE312111 64PE312 AR7E 11 1 CTD 04-Oct-2009 17:42 EN 59 23.49 N 36 51.00 W GPS 3124 64PE312 AR7E 12 1 CTD 04-Oct-2009 21:09 BE 59 17.73 N 35 53.72 W GPS 3118 64PE312 AR7E 12 1 CTD 04-Oct-2009 22:02 BO 59 17.75 N 35 53.70 W GPS 3112 3140 PE312121 64PE312 AR7E 12 1 CTD 04-Oct-2009 23:06 EN 59 17.78 N 35 53.78 W GPS 3112 64PE312 AR7E 13 1 CTD 05-Oct-2009 02:29 BE 59 11.79 N 34 56.29 W GPS 2520 64PE312 AR7E 13 1 CTD 05-Oct-2009 03:11 BO 59 11.81 N 34 56.20 W GPS 2514 2528 PE312131 64PE312 AR7E 13 1 CTD 05-Oct-2009 04:00 EN 59 11.81 N 34 56.19 W GPS 2514 64PE312 AR7E 14 1 CTD 05-Oct-2009 07:47 BE 59 06.03 N 33 53.61 W GPS 2508 64PE312 AR7E 14 1 CTD 05-Oct-2009 08:34 BO 59 06.00 N 33 53.72 W GPS 2514 2524 PE312141 64PE312 AR7E 14 1 CTD 05-Oct-2009 09:30 EN 59 06.03 N 33 53.75 W GPS 2514 64PE312 AR7E 15 1 CTD 05-Oct-2009 12:37 BE 59 01.35 N 33 00.25 W GPS 2301 64PE312 AR7E 15 1 CTD 05-Oct-2009 13:16 BO 59 01.32 N 33 00.28 W GPS 2301 2309 PE312151 64PE312 AR7E 15 1 CTD 05-Oct-2009 14:02 EN 59 01.28 N 33 00.35 W GPS 2301 64PE312 AR7E 16 1 CTD 05-Oct-2009 17:32 BE 58 56.17 N 32 01.57 W GPS 1786 64PE312 AR7E 16 1 CTD 05-Oct-2009 18:01 BO 58 56.15 N 32 01.51 W GPS 1786 1788 PE312161 64PE312 AR7E 16 1 CTD 05-Oct-2009 18:35 EN 58 56.14 N 32 01.52 W GPS 1792 64PE312 AR7E 17 1 CTD 05-Oct-2009 21:50 BE 58 50.87 N 31 06.63 W GPS 1487 64PE312 AR7E 17 1 CTD 05-Oct-2009 22:16 BO 58 50.90 N 31 06.74 W GPS 1481 1486 PE312171 64PE312 AR7E 17 1 CTD 05-Oct-2009 22:47 EN 58 50.92 N 31 06.75 W GPS 1481 64PE312 AR7E 18 1 CTD 06-Oct-2009 01:52 BE 58 44.82 N 30 11.78 W GPS 1652 64PE312 AR7E 18 1 CTD 06-Oct-2009 02:25 BO 58 44.79 N 30 11.74 W GPS 1682 1680 PE312181 64PE312 AR7E 18 1 CTD 06-Oct-2009 03:03 EN 58 44.65 N 30 11.94 W GPS 1664 64PE312 AR7E 19 1 CTD 06-Oct-2009 06:34 BE 58 41.01 N 29 14.02 W GPS 2219 64PE312 AR7E 19 1 CTD 06-Oct-2009 07:14 BO 58 40.98 N 29 13.93 W GPS 2231 2253 PE312191 64PE312 AR7E 19 1 CTD 06-Oct-2009 08:04 EN 58 40.99 N 29 13.80 W GPS 2243 64PE312 AR7E 20 1 CTD 06-Oct-2009 11:13 BE 58 35.04 N 28 19.79 W GPS 2103 64PE312 AR7E 20 1 CTD 06-Oct-2009 11:51 BO 58 34.96 N 28 19.59 W GPS 2109 2111 PE312201 64PE312 AR7E 20 1 CTD 06-Oct-2009 12:36 EN 58 34.86 N 28 19.64 W GPS 2103 64PE312 AR7E 21 1 CTD 06-Oct-2009 15:51 BE 58 30.15 N 27 24.49 W GPS 2762 64PE312 AR7E 21 1 CTD 06-Oct-2009 16:33 BO 58 30.20 N 27 24.40 W GPS 2237 2232 PE312211 64PE312 AR7E 21 1 CTD 06-Oct-2009 17:19 EN 58 30.20 N 27 24.20 W GPS 2237 64PE312 AR7E 22 1 CTD 06-Oct-2009 20:18 BE 58 25.98 N 26 32.85 W GPS 2658 64PE312 AR7E 22 1 CTD 06-Oct-2009 21:02 BO 58 25.95 N 26 32.78 W GPS 2664 2680 PE312221 64PE312 AR7E 22 1 CTD 06-Oct-2009 21:53 EN 58 25.98 N 26 32.51 W GPS 2670 64PE312 AR7E 23 1 CTD 07-Oct-2009 01:28 BE 58 19.78 N 25 32.49 W GPS 2786 64PE312 AR7E 23 1 CTD 07-Oct-2009 02:18 BO 58 20.08 N 25 33.54 W GPS 2780 2799 PE312231 64PE312 AR7E 23 1 CTD 07-Oct-2009 03:19 EN 58 20.07 N 25 34.80 W GPS 2774 64PE312 AR7E 24 1 CTD 07-Oct-2009 07:02 BE 58 12.39 N 24 38.20 W GPS 2798 64PE312 AR7E 24 1 CTD 07-Oct-2009 07:51 BO 58 12.30 N 24 38.34 W GPS 2792 2818 PE312241 64PE312 AR7E 24 1 CTD 07-Oct-2009 08:50 EN 58 12.35 N 24 38.28 W GPS 2792 64PE312 AR7E 25 1 CTD 07-Oct-2009 11:55 BE 58 04.70 N 23 45.10 W GPS 2951 64PE312 AR7E 25 1 CTD 07-Oct-2009 12:50 BO 58 04.52 N 23 45.63 W GPS 2945 2976 PE312251 64PE312 AR7E 25 1 CTD 07-Oct-2009 13:48 EN 58 04.85 N 23 47.07 W GPS 2939 64PE312 AR7E 26 1 CTD 07-Oct-2009 17:25 BE 57 54.97 N 22 49.15 W GPS 3006 64PE312 AR7E 26 1 CTD 07-Oct-2009 18:16 BO 57 54.91 N 22 49.01 W GPS 3006 3038 PE312261 64PE312 AR7E 26 1 CTD 07-Oct-2009 19:12 EN 57 54.89 N 22 49.00 W GPS 3006 64PE312 AR7E 27 1 CTD 07-Oct-2009 22:42 BE 57 46.47 N 21 55.22 W GPS 3060 64PE312 AR7E 27 1 CTD 07-Oct-2009 23:37 BO 57 46.45 N 21 55.13 W GPS 3054 3091 PE312271 64PE312 AR7E 27 1 CTD 08-Oct-2009 00:43 EN 57 46.35 N 21 55.14 W GPS 3054 64PE312 AR7E 28 1 CTD 08-Oct-2009 02:25 BE 57 42.42 N 21 30.12 W GPS 2640 64PE312 AR7E 28 1 CTD 08-Oct-2009 03:11 BO 57 42.48 N 21 30.12 W GPS 2646 2709 PE312281 64PE312 AR7E 28 1 CTD 08-Oct-2009 04:06 EN 57 42.46 N 21 30.13 W GPS 2646 64PE312 AR7E 29 1 CTD 08-Oct-2009 06:00 BE 57 36.99 N 21 01.96 W GPS 2317 64PE312 AR7E 29 1 CTD 08-Oct-2009 06:41 BO 57 36.99 N 21 01.98 W GPS 2317 2330 PE312291 64PE312 AR7E 29 1 CTD 08-Oct-2009 07:28 EN 57 36.99 N 21 01.99 W GPS 2317 64PE312 AR7E 30 1 CTD 08-Oct-2009 09:02 BE 57 35.19 N 20 37.43 W GPS 2170 64PE312 AR7E 30 1 CTD 08-Oct-2009 09:43 BO 57 35.19 N 20 37.42 W GPS 2170 2183 PE312301 64PE312 AR7E 30 1 CTD 08-Oct-2009 10:30 EN 57 35.25 N 20 37.36 W GPS 2170 64PE312 AR7E 31 1 CTD 08-Oct-2009 12:22 BE 57 30.07 N 20 08.92 W GPS 1318 64PE312 AR7E 31 1 CTD 08-Oct-2009 12:44 BO 57 30.13 N 20 08.63 W GPS 1310 1317 PE312311 64PE312 AR7E 31 1 CTD 08-Oct-2009 13:15 EN 57 30.27 N 20 08.29 W GPS 1298 64PE312 AR7E 32 1 CTD 08-Oct-2009 18:53 BE 57 21.97 N 19 16.08 W GPS 995 64PE312 AR7E 32 1 CTD 08-Oct-2009 19:10 BO 57 21.99 N 19 16.00 W GPS 995 990 PE312321 64PE312 AR7E 32 1 CTD 08-Oct-2009 19:31 EN 57 21.99 N 19 16.00 W GPS 995 64PE312 AR7E 33 1 CTD 09-Oct-2009 06:44 BE 57 05.79 N 17 27.07 W GPS 1327 64PE312 AR7E 33 1 CTD 09-Oct-2009 07:10 BO 57 05.77 N 17 27.07 W GPS 1327 1330 PE312331 64PE312 AR7E 33 1 CTD 09-Oct-2009 07:38 EN 57 05.77 N 17 27.10 W GPS 1327 64PE312 AR7E 34 1 CTD 09-Oct-2009 11:21 BE 56 57.94 N 16 32.09 W GPS 1216 64PE312 AR7E 34 1 CTD 09-Oct-2009 11:43 BO 56 57.96 N 16 31.96 W GPS 1216 1216 PE312341 64PE312 AR7E 34 1 CTD 09-Oct-2009 12:10 EN 56 58.01 N 16 31.85 W GPS 1212 64PE312 AR7E 35 1 CTD 09-Oct-2009 15:35 BE 56 48.07 N 15 40.74 W GPS 650 64PE312 AR7E 35 1 CTD 09-Oct-2009 15:47 BO 56 47.99 N 15 40.64 W GPS 650 646 PE312351 64PE312 AR7E 35 1 CTD 09-Oct-2009 15:59 EN 56 47.94 N 15 40.65 W GPS 646 64PE312 AR7E 36 1 CTD 09-Oct-2009 19:42 BE 56 40.16 N 14 47.59 W GPS 187 64PE312 AR7E 36 1 CTD 09-Oct-2009 19:45 BO 56 40.16 N 14 47.55 W GPS 186 176 PE3123561 64PE312 AR7E 36 1 CTD 09-Oct-2009 19:50 EN 56 40.14 N 14 47.57 W GPS 187 64PE312 AR7E 37 1 CTD 09-Oct-2009 22:19 BE 56 34.74 N 14 11.68 W GPS 333 64PE312 AR7E 37 1 CTD 09-Oct-2009 22:25 BO 56 34.72 N 14 11.71 W GPS 331 323 PE312371 64PE312 AR7E 37 1 CTD 09-Oct-2009 22:34 EN 56 34.74 N 14 11.65 W GPS 332 64PE312 AR7E 38 1 CTD 10-Oct-2009 00:52 BE 56 29.24 N 13 35.86 W GPS 1934 64PE312 AR7E 38 1 CTD 10-Oct-2009 01:29 BO 56 29.27 N 13 35.74 W GPS 1934 1944 PE312381 64PE312 AR7E 38 1 CTD 10-Oct-2009 02:07 EN 56 29.37 N 13 35.65 W GPS 1928 64PE312 AR7E 39 1 CTD 10-Oct-2009 03:58 BE 56 24.89 N 13 09.44 W GPS 2391 64PE312 AR7E 39 1 CTD 10-Oct-2009 04:39 BO 56 24.94 N 13 09.50 W GPS 2391 2416 PE312391 64PE312 AR7E 39 1 CTD 10-Oct-2009 05:23 EN 56 24.92 N 13 09.52 W GPS 2391 64PE312 AR7E 40 1 CTD 10-Oct-2009 08:31 BE 56 17.20 N 12 19.62 W GPS 2601 64PE312 AR7E 40 1 CTD 10-Oct-2009 09:18 BO 56 17.15 N 12 19.56 W GPS 2601 2628 PE312401 64PE312 AR7E 40 1 CTD 10-Oct-2009 10:14 EN 56 17.11 N 12 19.68 W GPS 2601 64PE312 AR7E 41 1 CTD 10-Oct-2009 13:15 BE 56 09.35 N 11 29.75 W GPS 2637 64PE312 AR7E 41 1 CTD 10-Oct-2009 13:59 BO 56 09.32 N 11 29.61 W GPS 2637 2670 PE312411 64PE312 AR7E 41 1 CTD 10-Oct-2009 14:51 EN 56 08.66 N 11 29.40 W GPS 2643 64PE312 AR7E 42 1 CTD 10-Oct-2009 17:41 BE 56 01.75 N 10 43.32 W GPS 2363 64PE312 AR7E 42 1 CTD 10-Oct-2009 18:23 BO 56 01.81 N 10 43.21 W GPS 2363 2389 PE312421 64PE312 AR7E 42 1 CTD 10-Oct-2009 19:14 EN 56 01.82 N 10 43.23 W GPS 2363 64PE312 AR7E 43 1 CTD 10-Oct-2009 22:24 BE 55 52.89 N 09 51.15 W GPS 1918 64PE312 AR7E 43 1 CTD 10-Oct-2009 22:57 BO 55 52.91 N 09 51.23 W GPS 1918 1926 PE312431 64PE312 AR7E 43 1 CTD 10-Oct-2009 23:35 EN 55 52.95 N 09 51.22 W GPS 1918 64PE312 AR7E 44 1 CTD 11-Oct-2009 01:16 BE 55 48.98 N 09 25.85 W GPS 818 64PE312 AR7E 44 1 CTD 11-Oct-2009 01:31 BO 55 48.92 N 09 25.71 W GPS 812 813 PE312441 64PE312 AR7E 44 1 CTD 11-Oct-2009 01:50 EN 55 49.00 N 09 25.86 W GPS 815 64PE312 AR7E 45 1 CTD 11-Oct-2009 03:38 BE 55 45.02 N 09 00.07 W GPS 123 64PE312 AR7E 45 1 CTD 11-Oct-2009 03:40 BO 55 45.03 N 09 00.05 W GPS 123 114 PE312451 64PE312 AR7E 45 1 CTD 11-Oct-2009 03:42 EN 55 45.04 N 09 00.00 W GPS 122 64PE312 46 1 CTD 11-Oct-2009 21:33 BE 55 11.60 N 13 19.70 W GPS 2836 64PE312 46 1 CTD 11-Oct-2009 22:21 BO 55 11.81 N 13 19.79 W GPS 2836 2868 PE312461 64PE312 46 1 CTD 11-Oct-2009 23:09 EN 55 12.48 N 13 18.76 W GPS 2836 64PE312 47 1 CTD 12-Oct-2009 01:47 BE 55 00.12 N 12 42.82 W GPS 2891 64PE312 47 1 CTD 12-Oct-2009 02:35 BO 55 00.11 N 12 42.43 W GPS 2891 2931 PE312471 64PE312 47 1 CTD 12-Oct-2009 03:27 EN 55 00.10 N 12 42.68 W GPS 2891 64PE312 48 1 CTD 12-Oct-2009 06:03 BE 54 47.30 N 12 07.63 W GPS 2873 64PE312 48 1 CTD 12-Oct-2009 06:54 BO 54 47.30 N 12 07.54 W GPS 2873 2980 PE312481 64PE312 48 1 CTD 12-Oct-2009 07:50 EN 54 47.30 N 12 07.52 W GPS 2873 64PE312 49 1 CTD 12-Oct-2009 10:30 BE 54 35.90 N 11 30.22 W GPS 2592 64PE312 49 1 CTD 12-Oct-2009 11:12 BO 54 35.92 N 11 30.27 W GPS 2598 2626 PE312491 64PE312 49 1 CTD 12-Oct-2009 11:58 EN 54 35.88 N 11 30.28 W GPS 2598 64PE312 50 1 CTD 12-Oct-2009 13:18 BE 54 30.33 N 11 11.52 W GPS 64PE312 50 1 CTD 12-Oct-2009 13:32 BO 54 30.30 N 11 11.35 W GPS 739 739 PE312501 64PE312 50 1 CTD 12-Oct-2009 13:46 EN 54 30.28 N 11 11.16 W GPS 732 64PE312 51 1 CTD 12-Oct-2009 15:10 EN 54 24.07 N 10 54.01 W GPS 330 64PE312 51 1 CTD 12-Oct-2009 15:17 EN 54 24.05 N 10 53.98 W GPS 330 327 PE312511 64PE312 51 1 CTD 12-Oct-2009 15:24 EN 54 24.04 N 10 53.91 W GPS 330 Description of the parameters in *.CTD files CTDPRS dbar Pressure, measured with the CTD, expressed in dbar CTDTMP ITS-90 Temperature, measured with the CTD, expressed in °C according to the ITS-1990 temperature scale CTDSAL PSS-78 Practical salinity according to the PSS-1978 scale, measured with the CTD, dimensionless THETA deg.C Potential temperature, derived from the CTD measurements, expressed in °C according to the ITS-1990 temperature scale GAMMA kg/m3 Potential density anomaly, derived from the CTD measurements, expressed in kg/m3 BattCoef m–1 Beam attenuation coefficient, measured with a transmission meter in the CTD system, expressed in m–1 Appendix B. Mooring summary file of LOCO2-7 Mooring LOCO 2-7 Barcode 41942 Unc. Latitude Longitude deployment time Depth Heading ----------- ----------- ----------------- ----- ------- 59° 12.21'N 39° 30.49'W 02-Oct-2009 17:44 3042 314° height Depth recording rate/ instruments & T&T released above in water release bump cables S/N Barcode length bottom (m) code remarks --------------- -------- ------- -------- ------ -------- --------------- --------------- bottom weight 1 3017 corrected depth 1 3016 5 m chain 5 6 3011 releases 2 3009 OCEANO RT 162 3834 OCEANO AR 156 11211 8 3009 Microcat cable 2671 00925 569 3002 5 min 568 576 2441 chain 2 578 2439 Longranger ADCP 3714 7504 2 20 min downlooking 580 2437 chain 2 bumper 00994 2434 582 2435 cable 2283 McLane profiler 11564-02 2912 150-2400 1 day 2865 152 bumper 01335 153 chain 2 2867 150 sub-surface 01373 1 buoy 2868 149 chain 2 2870 147 cable 20 2890 127 chain 2 2892 125 Longranger ADCP 3652 857 1 20 min downlooking 2893 124 floating line 15 top buoy 01380 2908 109 ARGOS baken 60675 2103 Id =23127 CCHDO Data Processing Notes Date Person Data Type Action Summary ---------- ------------ ----------- -------------- ------------------- 2014-10-08 Diggs, Steve CTD/BTL/DOC Submitted WOCE formatted data One ZIP archive includes WOCE formats for CTD and BOT. Two cruise reports included. ExpoCode needs to be changed from 33KB258/1 to 33KB20131219. 2015-03-30 Kappa, Jerry CrsRpt Website Update PDF version online The PDF version of the cruise report is now online. It includes all reports provided by the cruise PIs, CCHDO summary pages, linked table of contents, figures, tables and appendices, and these data processing notes. 2015-04-06 Kappa, Jerry CrsRpt Website Update TXT version online The TXT version of the cruise report is now online. It includes all reports provided by the cruise PIs, CCHDO summary page, table of contents, tables, appendices, and these data processing notes.