A. CRUISE NARRATIVE: AR07W_2003a Last update: 2004.APR.07 (Atlantic Circulation Experiment, Labrador Sea) A.1. HIGHLIGHTS WHP CRUISE SUMMARY INFORMATION WOCE section designation AR07W_2003a Expedition designation (EXPOCODE) 18HU2003038_1 Chief Scientist/affiliation R. Allyn Clarke/BIO* Dates 2003.JUL.13 - 2003.AUG.04 Ship CCGS Hudson Ports of call July 13 BIO, Dartmouth, NS, Canada August 4 BIO, Dartmouth, NS, Canada Number of stations 462 60° 33.92' N Stations Geographic boundaries 63° 38.49' W 46° 39.95' W 42° 31.89' N Floats and drifters deployed 6 PROVOR floats deployed Moorings deployed or recovered 6 deployed 7 recovered 4 release tests Contributing Authors Anning, J Bugden, J Clarke, A Dickie, P Harris, L. Harrison, G Jackson, J Kepkay, P Li, Wm Perry, T Scotney, M Smith, J Yashayaev, I *Ocean Sciences Division • Department of Fisheries and Oceans Bedford Institute of Oceanography • PO Box 1006 Dartmouth, NS, Canada B2Y 2A4 E-mail: clarkea@mar.dfo-mpo.gc.ca A.2.1. CRUISE TRACK A cruise track is shown in Figure A.2.1. The ship's position at 0000Z on each day of the cruise is indicated with a date label. FIGURE A.2.1: Cruise track for 18HU2003038_1. The date labels indicate the ship's position at 0000Z. A.2.2. TOTAL NUMBER OF STATIONS OCCUPIED The CTD and ROS station positions are shown in Figure A.2.2. The WHP stations are all contained in the box defined by 50-62_N and 40-60_W. Table A.2.1 lists the science operations for 18HU2003038_1. TABLE A.2.1: Science operations conducted on 18HU2003038_1. CAST # OF TYPE OPS DETAILED DIVISION OPERATION NUMBERS ------- ---- ------------------------ --------------------------------- ROSETTE 28 regular AR7W Sites see Table A.2.2 & CTD (L3 line) plus Sites 8.5, 25.3 and 25.7 1 to profile cold LS 315 Eddy 7 Halifax Line Sites See Table A.2.3 10 Stations on L4 line, See Table A.2.4 plus 6.5 and 5.7 7 Biology Casts not in- 119, 152, 186, 219, 259, 290, 433 cluded in other tables 1 Basin test 2 20 as part of mooring 21, 31, 32, 36, 42, 46 - 49, work 56, 57, 59, 61, 62, 75, 76, 78 - 80, 83 MOORINGS 17 7 recoveries 45, 64, 66, 81, 82, 116, 160 6 deployments 24, 27, 52, 67, 70, 118 4 release tests 22, 50 FLOATS 6 6 PROVOR floats deployed 40, 58, 208, 271, 294, 318 BIOLOGY 126 64, 200 _m net tows 5, 7, 11, 13, 14, 19, 34, 38, 72, 74, 77, 84, 87, 90, 93, 96, 100, 105, 112, 120, 122, 124, 129, 131, 136, 142, 149, 151, 161, 163, 173, 175, 183, 185, 194, 205, 216, 218, 227, 229, 240, 242, 256, 268, 272, 275, 280, 284, 287, 289, 316, 352, 430, 432, 435, 437, 439, 442, 446, 450, 453, 456, 459, 462 48, 76 _m net tows 6, 8, 12, 15, 20, 35, 39, 73, 85, 88, 91, 94, 97, 101, 106, 113, 121, 125, 130, 137, 143, 150, 162, 174, 184, 195, 206, 217, 228, 241, 257, 269, 273, 276, 281, 285, 288, 317, 431, 436, 440, 443, 447, 451, 454, 457, 460, 463 14 deep stratified 43, 44, 60, 115, 133, 144, 164, vertical tows with 197, 231, 232, 258, 260, 282, 292 multi-net CHEMISTRY 129-I surface 86, 92, 98, 108, 114, 126, 132, 145, 153, 176, 187, 207, 220, 243, 270, 274, 277, 283, 286, 291 129-I profile 138, 165, 196, 230, 261 ------- ---- ------------------------ --------------------------------- OTHER 492 hrs Ship Board ADCP No number assigned 525 hrs. along 4track T, No number assigned S, and fluorescence 107 XBT Deployments 99, 103, 104, 109-111, 127, 128, 134, 135, 139 - 141, 146 - 148, 154 - 159, 167 - 172, 177 - 182, 188 - 193, 198 - 204, 209 - 215, 221 - 226, 233 - 239, 244 - 255, 262 - 267, 295 - 314, 320, 109 MVP Deployments 1, 3, 319, 321, 323 - 351, 354 - 429 The WOCE cruise station summary file (SUM) outlines the science operations conducted during the cruise. In the Comment section of the SUM file there is frequent mention of operation notes indicated by "Op Note". These notes are included in Appendix 1. TABLE A.2.2: AR7W sites and rosette and CTD operation numbers for 18HU2003038_1. AR7W 2003038 Deep Cast Site Number Operation Number ----------- ----------------- 1 86 2 89 3 92 4 95 5 98 6 102 7 108 8 114 8.5 123 9 126 10 132 11 138 12 145 13 153 14 165 15 176 16 187 17 196 18 207 19 220 20 230 21 243 22 291 23 261 24 286 25 270 25.3 278 25.7 279 26 283 27 274 28 277 FIGURE A.2.2: This map shows the station positions for CTD only operations (blue hollow circles); CTD and LADCP operations (red filled circles); rosette, CTD and LADCP operations (green filled triangles); rosette and CTD operations (black star) for Hudson 18HU2003038_1. TABLE A.2.3: Halifax Line sites and rosette operation numbers for 18HU2003038_1. Halifax 2003038 Deep Cast Line Number Operation Number ----------- ----------------- 1 4 2 9 3 10 4 17 5 18 6 33 7 37 TABLE A.2.4: L4 Line sites and rosette operation numbers for 18HU2003038_1. L4 Line 2003038 Deep Cast Station Number Operation Number -------------- ----------------- 10 434 9 438 8 441 7 444 6.5 445 6 448 5.7 449 5 452 4 455 3 458 2 461 1 464 Along AR7W, the stations were full-depth WHP small volume rosette casts with up to 24 rosette bottles. Water samples were analyzed for CFCs, carbon tetrachloride, total carbonate, alkalinity, oxygen, salinity, and nutrients. On some casts, samples were collected for 129I (iodine-129). A.2.3. FLOATS AND DRIFTERS DEPLOYED Listed in table A.2.5 are the six PROVOR floats that were deployed. The deployment logs are given in Appendix 2. TABLE A.2.5: PROVOR float deployments on Hudson 2003038 LAUNCH POSITION | START | LAUNCH PROVOR | |Event|-----------------------|----------------------|--------------------- Float #| WHO # | # | Latitude | Longitude | Time | Date | Time | Date -------|---------|-----|-----------|-----------|-------|--------------|-------|------------- MT-103 | 4900423 | 40 | 42 32.8 N | 61 25.1 W | 04:20 | 25 July 2003 | 04:32 | 25 July 2003 MT-104 | 4900422 | 271 | 60 19.0 N | 48 35.1 W | 18:13 | 28 July 2003 | 18:45 | 28 July 2003 MT-105 | 4900421 | 318 | 59 23.4 N | 49 18.6 W | 03:50 | 30 July 2003 | 04:12 | 30 July 2003 MT-112 | 4900414 | 58 | 44 39.5 N | 54 57.8 W | 21:50 | 17 July 2003 | 22:07 | 17 July 2003 MT-119 | 4900408 | 294 | 59 42.7 N | 49 07.6 W | 18:21 | 29 July 2002 | 19:00 | 29 July 2003 MT-120 | 4900407 | 208 | 58 13.3 N | 50 53.8 W | 06:22 | 27 July 2002 | 07:36 | 27 July 2003 A.2.4. MOORINGS DEPLOYED OR RECOVERED A total of seventeen mooring related operations, consisting of six deployments, seven recoveries and four release tests were conducted at five sites, the Scotian Slope south of Halifax, at the mouth of the Laurentian Channel, Flemish Pass, Makovik Bank and the Labrador Sea. The following summarizes the mooring operations. The mooring recovery and deployment logs are attached as Appendix 3. DEPLOYMENTS: M 1475 55 07.171 N Standard mooring consisting of one current meter 54 05.554 W positioned 20m off bottom along AR7W on the Labrador Slope (12-month deployment) at the 1032 metres. M 1491 42 59.145 N Standard mooring consisting of three current meters and 61 44.924 W one Microcat at 300 m. on the Scotian Slope and Halifax Section. Six month deployment. M 1492 44 49.885 N Standard mooring consisting of five current meters, one 56 10.585 W Microcat and ADCP at 400 m at the mouth of the Laurentian Channel. Six month deployment. Three guard buoys were also set. M 1493 46 59.954 N Standard mooring consisting of five current meters and 47 17.085 W one Minilog on the western side of Flemish Pass at 400 metres. Two guard buoys were also set. M 1494 46 59.89 N Standard mooring consisting of four current meters and 45 02.10 W two Microcats set at 1123 m. on the western side of Flemish Pass on the 47 N Flemish Cap section. One guard- buoy also set. Six month deployment. RALPH 42 59.496 N Bottom boundary layer tripod containing current meters 61 44.722 W and video and still cameras. Instrument was deployed within a joint program between GSC Atlantic and Dalhousie Oceanography. It will be recovered in October 2004. RECOVERIES M 1452 56 40.450 N Complex mooring consisting of two sediment traps, six 52 29.210 W current meters, seven Seacats and three releases that was set at 3518 meters depth near the OWS Bravo site on AR7W in the Labrador Sea in July 2002. M 1453 55 07.171 N Standard mooring consisting of one current meter 54 05.554 W positioned 20m off bottom along AR7W on the Labrador Slope along the 1000m isobath that was set in July 2002. M 1457 47 00.069 N Standard mooring consisting of two current meters, one 47 16.947 W ADCP and one Microcat that was set at 400 metres depth on the western flank of Flemish Pass in November, 2003. A Guard Buoy was also recovered at this site M 1458 47 00.093 N Standard mooring consisting of four current meters and 47 02.069 W two Microcats that was set at 1120 metres depth in Flemish Pass in November, 2003. A Guard Buoy was also recovered at this site M 1466 55 24.487 N Near bottom current meter mooring consisting of one ADCP 58 03.548 W M 1467 55 24.559 N Near bottom mooring consisting of an ice profiling sonar 58 03.804 W for the determination of ice draft. M 1474 43 24.064 N A complex mooring consisting of three sediment traps, 3 57 40.845 W current meters and three Microcats that was set in April 2003 on the continental rise offshore of Louisburg, NS. The upper buoyancy package had been broken loose on June 18, 2003. Recovery of the rest of the mooring was accomplished through dragging. FIGURE A.2.3: Mooring operations (deployed - green filled triangles, recovered - red filled triangles) and float deployment locations (burgundy filled diamonds) for Hudson 18HU2003038_1. A.3. LIST OF PRINCIPAL INVESTIGATORS Table A.3.1: List of Principal Investigators. See Section 7 for addresses. Name/Affiliation E-mail Responsibility --------------------- ------------------------------ ---------------------------------- Allyn Clarke/BIO clarkea@mar.dfo-mpo.gc.ca Senior scientist Overall co-ordination Bob Gershey/ BDR Research Alkalinity, carbonate, CFCs rgershey@fox.nstn.ns.ca Glen Harrison/BIO harrisong@mar.dfo-mpo.gc.ca Coordinator biological program nitrate and ammonium utilization by phytoplankton, sediment traps Labrador Sea. Erica Head/BIO heade@mar.dfo-mpo.gc.ca Macrozooplankton distribution, abundance and metabolism Paul S. Hill/ Oceanography Dalhousie Bottom boundary layer, Ralph paul.hill@dal.ca Paul Kepkay/BIO kepkayp@mar.dfo-mpo.gc.ca Dissolved organic carbon, colloid chemistry and plankton respiration Peter Jones/BIO jonesp@mar.dfo-mpo.gc.ca Alkalinity, carbonate, CFC's John Lazier/BIO lazierj@mar.dfo-mpo.gc.ca CTD data, moored instrument data Bill Li/BIO lib@mar.dfo-mpo.gc.ca Pico-plankton distribution and abundance, bacteria John Loder/BIO LoderJ@mar.dfo-mpo.gc.ca Moorings, Scotian Slope and Flemish Pass Robert Pickart/WHOI pickart@rsp.whoi.edu Lowered ADCP Simon Prinsenberg/BIO PrinsenbergS@mar.dfo-mpo.gc.ca Ice thickness and currents Labrador shelf John Smith/BIO smithjn@mar.dfo-mpo.gc.ca Chemistry isotopes Igor Yashayaev/BIO YashayaevI@mar.dfo-mpo.gc.ca Hydrography and XBTs A.4. PHYSICAL - CHEMICAL PROGRAM A.4.1. NARRATIVE This expedition was conducting operations in support of four ongoing scientific initiatives. The first initiative is in support of the North Atlantic Oscillation and the Atlantic Thermohaline Circulation Principal Research Areas of the Climate Variability and Predictability (CLIVAR) project of the World Climate Research Programme (WCRP). The occupation of the Labrador Sea section and the recovery of the two Labrador Sea moorings provide a measure of the winter cooling and water mass transformations over the winters of 2002/2003. The resetting of the mooring on the 1000 metre isobath on the Labrador slope continues a 20+ year observation program of the Labrador Current. The second initiative is the continuation of the Labrador Sea project of the Canadian Joint Global Ocean Flux Study (JGOFS). The biological program is designed to characterize the late spring biological processes in the Labrador Sea and its shelf regions and is discussed in a later section of this document. A particular element of this year's program is the recovery of two moored sediment traps near the old OWS Bravo site in the Labrador Sea. These have been measuring the particle flux at 200 and 1000 metres over the past 12 months. The physical/chemical oceanographic program observes nutrients, total carbonate, alkalinity and CFCs over the entire water column in order to document the vertical transport of carbon via winter convection in the Labrador Sea as well as the changes in carbon storage in the deep waters of the North Atlantic. The third objective is to observe the physical and chemical parameters at the various stations of the Halifax Section in support of DFO's Atlantic Zonal Monitoring Program. The fourth objective is to recover and set moorings for various programs within the Ocean Sciences Division, BIO. Moorings were recovered and set on the continental slope at the end of the Halifax Section, at the mouth of the Laurentian Channel and in Flemish Pass. These moorings are designed to provide information on the structure of the current field to provide information related to the exploration and exploitation of oil and gas under the deeper areas of the continental slope. Two moorings were recovered from Makovik Bank on the Labrador Shelf. These moorings measured ice draft and water velocity profiles in support of the division's sea ice research program on the Labrador and Newfoundland shelves. A complex sediment trap mooring was recovered from the continental rise offshore of the Laurentian Channel. This mooring had been set as a contribution to the Canadian SOLAS program in April 2003. The mooring failed in June 2003; the failure is believed to be caused by the mooring being caught a trawl or a towed array. The fifth objective was to deploy profiling floats as a Canadian contribution to the International GODAE/Argo program. Six floats were deployed; two in the Slope Water region and four in the Labrador Sea. A.4.2. RADIOISOTOPE SAMPLING PROGRAM (John Smith) Near surface water samples were collected for 129I from a near surface rosette bottle at 20 stations on the L3 (AR7W) line. Full depth sampling for 129I was carried out at 5 stations on the same section. See table A.2.1 for the list of operations during which 129I was sampled. A.5. BIOLOGICAL PROGRAM A.5.1. NARRATIVE The biological program conducted as part of cruise 2003038, with some modifications, was a continuation of studies began in 1994 to describe the large-scale (spatial and temporal) variability in plankton biomass, productivity and biogenic carbon inventories in the Labrador Sea. The program has consisted of essentially five elements: 1) a phytoplankton biomass/primary productivity program conducted by Glen Harrison and Jeff Anning with assistance from Katherine Power (latter for Trevor Platt and Ed Horne), 2) a microbial program conducted by Paul Dickie (for Bill Li), 3) a mesozooplankton program conducted by Les Harris and Tim Perry (for Erica Head), 4) a dissolved organic carbon/community respiration program conducted by Jay Bugden (for Paul Kepkay), and 5) a sediment trap program conducted by Jeff Anning and Glen Harrison. The ultimate aim of these studies is twofold: 1) to provide a description of the inventories in and export of biogenic carbon from the Labrador Sea, their turnover rates and variability in space and time as part of OSD's continuing climate-studies and 2) to provide a description of plankton life-cycles and productivity in the Labrador Sea and its influence or contribution to ecosystems downstream in support of OSD's fisheries-related research. In addition to the Labrador Sea study, phytoplankton, mesozooplankton and nutrient samples were collected at the seven stations along the Halifax line in support of OSD's obligations to the Atlantic Zone Monitoring Program (AZMP). A.5.2. STABLE ISOTOPE STUDIES OF CARBON AND NITROGEN (NITRATE AND AMMONIUM) UTILIZATION BY PHYTOPLANKTON (Glen Harrison) This work represents a continuation of research begun in 1994 to determine the primary productivity (in terms of carbon and nitrogen) of phytoplankton in the Labrador Sea. Carbon dioxide (CO2), nitrate (NO3) and ammonium (NH4) utilization rates from eight depths in the photic zone (i.e. the 1% light level ranged from 35-80 m) were determined using stable isotope tracer (13C and 15N) methods. Incubations experiments were carried out in on-deck 'simulated in-situ' incubators. A total of 9 experiments were conducted (see Table A.4.2.1). Carbon and nitrogen-based primary productivity rates along the L3 line will be related to vertical fluxes of particulate biogenic carbon and nitrogen derived from our sediment trap deployed on the "Bravo" mooring in 2002. In addition to productivity measurements, samples from two deep casts (L3_14 & L3_15) were collected for determination of suspended particulate organic carbon (POC) and nitrogen (PON) 1,000 m. TABLE A.4.2.1: Sampling for stable isotopes. Photic Date Site Event # Depth(m) 15N/13C POC/PON --------- ------- ------- -------- ------- ------- 23-Jul-03 L3_01 86 45 x 24-Jul-03 L3_08.5 119 35 x 25-Jul-03 L3_13 152 50 x 26-Jul-03 L3_14 165 x 26-Jul-03 L3_15 176 x 26-Jul-03 L3_16 186 40 x 27-Jul-03 L3_19 219 55 x 28-Jul-03 L3_23 259 80 x 29-Jul-03 L3_22 290 65 x 30-Jul-02 Transit 353 80 x 31-Jul-03 L4_10 433 75 x A.5.3. ZOOPLANKTON SAMPLING (L. Harris, T. Perry) The zooplankton sampling is part of an ongoing program, the aim of which is to investigate the distribution, abundance and life history of the major zooplankton groups found in the Labrador Sea and its associated shelf systems. Particular emphasis is placed on the copepod species of the Calanus genus, which dominate the zooplankton in this region. Vertical net tows were taken at 50 stations, using both a 3/4 metre 200 _m mesh ring net and a 1/2 meter 76 um mesh ring net. At all stations, tows were made from 100 meters to the surface. Additional deep stratified tows (1000 meters to the surface) were taken at 11 of the stations in the Labrador Sea using a multi-net. Samples will be analysed for species composition, copepod stage structure and biomass. See Figure A.4.2.1 for station locations where nets were used. A.5.4. MEASUREMENTS OF COPEPOD REPRODUCTION RATES (L. Harris, T. Perry) Egg production rates of Calanus finmarchicus, the dominant copepod species, were measured at 9 stations in the Labrador Shelf. FIGURE A.4.2.1: Net tow (blue open circle) and multi-net tow (red filled diamond) locations for 18HU2003038_1. A.5.5. TOTAL ORGANIC CARBON (TOC) AND MICROBIAL COMMUNITY RESPIRATION (Jay Bugden and Paul Kepkay) To better understand the cycling of carbon and the mechanisms controlling it in the Labrador Sea, it is necessary to examine the pool of total organic carbon (TOC), and look at the activity of the microbial community in the water column. By examining the rate of respiration and by size fractionating the TOC, information on the fate of carbon in this marine environment may be elucidated. During CCGS Hudson cruise 2002-038 seven stations were sampled at the surface and at the chlorophyll maximum (usually between 3 and 50m depth) for gross microbial community respiration, and for the same stations only the surface was sampled for size fractionation of TOC (ultrafiltration). The stations sampled are listed below. TOC depth profiles were also collected from the stations indicated in the table below. TABLE A.4.2.2: Ultrafiltration, respiration and TOC sampling on CCGS Hudson cruise 2003-038. Station Respiration Ultrafiltration TOC Profile ------------- ----------- --------------- ----------- AR7W site 1 X X X AR7W site 2 X AR7W site 3 X AR7W site 4 X AR7W site 5 X AR7W site 6 X AR7W site 7 X AR7W site 8 X AR7W site 8.5 X X AR7W site 9 X AR7W site 10 X AR7W site 11 X AR7W site 12 X AR7W site 13 X X X AR7W site 14 X AR7W site 15 X AR7W site 16 X X X AR7W site 17 X AR7W site 18 X AR7W site 19 X X X AR7W site 20 X AR7W site 21 X AR7W site 22 X X X AR7W site 23 X X X AR7W site 24 X X X AR7W site 25 X AR7W site 26 X AR7W site 27 X AR7W site 28 X A.5.6. PRIMARY PRODUCTION MEASUREMENTS (Jeff Anning) Water samples for primary production experiments were collected from the rosette at 10 stations. For each incubation, 33 aliquots were inoculated with 14C as sodium bicarbonate and then incubated at in situ temperatures at 30 light levels (+ 3 dark bottles) for approximately 3 hours. At the end of the incubation period the cells were harvested onto GF/F glass fiber filters for later counting in a scintillation counter. Duplicate chlorophyll, duplicate particulate organic carbon, one HPLC, and one Absorption Spectra sample were collected for all incubations. Photosynthesis/irradiance incubations were conducted at the following stations: TABLE A.4.2.3: Sampling for primary production. Station Event Lat. Long. Date Time Depth ID ------- ----- ------ ------- --------- ----- ----- ------ L3-01 86 53.676 -55.546 23-Jul-03 15:52 2 265706 20 265703 L3-08.5 119 55.187 -54.059 24-Jul-03 13:17 4 265818 21 265814 L3-13 152 56.115 -53.116 25-Jul-03 00:52 4 265924 10 265921 L3-16 186 57.377 -51.792 26-Jul-03 15:22 3 266013 30 266008 L3-19 219 58.640 -50.416 27-Jul-03 10:56 4 266102 29 266097 L3-23 259 59.985 -48.899 28-Jul-03 10:25 4 266215 49 266208 L3-22 290 59.744 -49.155 29-Jul-03 13:16 3 266341 21 266337 L3-L4 353 57.738 -49.404 30-Jul-03 13:03 4 266382 30 266377 L4-10 433 53.449 -49.499 31-Jul-03 10:12 4 266399 29 266394 L4-05 452 52.733 -51.999 01-Aug-03 10:22 3 266528 27 266523 A.5.7. BACTERIAL ABUNDANCE AND PRODUCTION OF MICROBIAL PLANKTON (William Li and Paul Dickie) Seawater samples were collected from the water sample bottles at all stations and all depths for subsequent Flow Cytometric analysis. They were preserved with a final concentration of 1% filtered paraformaldehyde and frozen in liquid Nitrogen. Dr. Bill Li will look at these for enumeration of pico- phytoplankton, bacteria and viruses. At 17 stations on the Labrador- Greenland transect, incubations were conducted on water from the surface to 150 meters for uptake of tritiated leucene into bacterial cells. This gave an estimate of the rate of increase of marine heterotroph biomass in the photic zone. An additional experiment was performed at station L3-16 using 21 water depths from surface to 3499 meters. A Dilution experiment was done to test the effects of predation on the experiment. Water samples were also collected from near the surface at most stations, preserved with a 1% final concentration of formaldehyde, stained with Dapi dye and filtered onto .8(m black polycarbonate filters. These will be kept frozen in the dark until they can be counted under a fluorescent microscope for nano-zooplankton. A.5.8. MOORING SEDIMENT TRAPS (Glen Harrison and Jeff Anning) Two sediment traps (from 175 m and 1,053 m) were successfully recovered at the "BRAVO" mooring site (M1349) on 25 July, 2003. The trap design employed was developed at BIO (Bioflux traps), it has a 24-cup capacity and internal Tattletale computer for programming particle collection intervals. Cups were programmed to collect material for 15-day intervals starting 12:01 (GMT), 15 July, 2002 and ending at 24:00 (GMT), 10 July, 2003. The shallow trap carousel worked properly through the first 14 cycles at which point rotation stopped. The cause of this malfunction, whether power or mechanical, is unknown at this point. It was noted that the PVC cover for the carousel was warped but this could have resulted from water pressure in the funnel upon recovery. The deep trap appeared to function properly for all 24 cycles. A preliminary inspection of the trap contents (Fig. 4.2.2) revealed a preponderance of diel-migrant crustacean "swimmers" in the shallow traps and numerous deep sea shrimp, jellies and other large organisms (e.g. fish) in the deep traps. Sedimenting phyto-detritus was detected only in the first (shallow and deep traps) and last (deep traps) few cups of the series. Note the excessive accumulation of biogenic material in cup #14 of the shallow trap, the point at which the carousel stopped rotating. This cup would have collected material for six months (26 January - 25 July, 2003). The material was highly decomposed (as evidenced by black appearance of the material and presence of H2S) as opposed to the other cups where the Hg preservative was adequate to retard decomposition. The small amount of biogenic material in cups #15-24 of the shallow trap was likely cross-contamination after the carousel seized. FIGURE A.4.2.2: Sediment trap cup contents from 175 m and 1,050 m, "Bravo" mooring (M1349) deployed 4 July, 2002 and recovered, 25 July 2003. Cup collected material for 15-day intervals; starting 15 July, 2002 and ending 10 July, 2003. A.6. MAJOR PROBLEMS AND GOALS NOT ACHIEVED The pump on the Autoanalyzer system failed early during the sampling of the AR7W section. The appropriate spares were not on board so all remaining nutrient samples were frozen and were brought back to BIO for subsequent analysis. A.7. OTHER INCIDENTS OF NOTE The biological sensors were left on the CTD package on station 22 (operation 291) of the AR7W section. The Wet Labs flourometer flooded around 1500 metres and this caused a data transmission failure on the CTD. When the CTD was recovered and the biological sensors were removed, the CTD unit worked fine. The light sensor survived its cast to about 1600 metres without damage although it is only rated to 400 metres. We had considerable difficulty with the instrumented blocks on the CTD boom early in the trip. After trying both of the CTD blocks (equipped with wire tension sensors) without resolving all the problems, we went to the spare block from the multi-net system. This block worked fine although it does not measure tension. Fortunately the seas were extraordinarily calm and hence tension measurements were not necessary. A.8. LIST OF CRUISE PARTICIPANTS Name Responsibility Affiliation ----------------------- ------------------------------------- ----------- Jeff Anning Primary Production BIO Carol Anstey Nutrients BIO Victoria Burdett-Coutts CO2, Alkalinity and O2 analysis BDR Jay Bugden DOC Levels, respiration rates BIO Rick Boyce Salts, moorings BIO Derek Brittain MVP, moorings BIO Allyn Clarke Senior Scientist BIO Paul Dickie Bacterial activity BIO Bob Gershey Scientist, CO2, O2, CFCs, Alkalinity BDR Les Harris Zooplankton, Net Tows BIO Glen Harrison Assistant Scientist BIO Jeff Jackson Data management BIO Matt Mazloff Student, computer room WHOI Tim Perry Zooplankton, vertical net hauls BIO Katherine Power Biological analysis BIO Murray Scotney Moorings, instrumentation BIO Igor Yashayaev Scientist BIO Frank Zemlyak Technician, CO2, O2, CFCs, Alkalinity BIO BIO Bedford Institute of Oceanography PO Box 1006 Dartmouth, NS, B2Y 2A4 Canada BDR BDR Research Ltd. Box 652, Station 'M' Halifax, NS, B3J 2T3 Canada WHOI Woods Hole Oceanographic Institution Woods Hole, MA 02543 USA B. UNDERWAY MEASUREMENTS B.1. NAVIGATION AND BATHYMETRY (Jeff Jackson) The navigation system onboard CCGS Hudson consists of a differential GPS receiver and AGCNAV. The receiver is one of many NMEA feeds into a multiplexer that provides all the NMEA strings to a PC on the bridge. The PC, which is running AGCNAV software, then rebroadcasts the NMEA strings to distribution units in the computer room, which provide 16 output lines for the working labs. The resulting broadcast navigation strings are at about 1 Hz. The navigation data are then logged at 10 second intervals on a PC. AGCNAV is a PC based display and waypoint setting software package, developed at the Atlantic Geoscience Centre at BIO. This software graphically displays ship position, waypoints, course, speed, etc. to the various science working areas. The echo sounder system used for collecting bathymetric data at station locations consisted of a Raytheon Line Scan Recorder, Model LSR 1811-1 (serial number A101) connected to a 12kHz transducer. The transducer beam width is 15 degrees. The sweep rate of the record was adjusted throughout the course of data collection to aid in identifying the bottom signal. One transducer is positioned on a Ram that can be lowered or raised depending on conditions. When the ram is up, the waterline to transducer offset is 6 m. When the ram is down, the offset is 8 m. B.2. VESSEL MOUNTED ACOUSTIC DOPPLER CURRENT PROFILER (Murray Scotney) The Hudson was equipped with a hull mounted RDI Acoustic Doppler Current Profiler (ADCP). The transducer (serial number 177) had VM ADCP electronics (serial number 172). Logging, using Transect software on a 486 PC, was started on July 13 at 1739 Z off the coast off the Nova Scotia while performing operations on the Halifax Line. The configuration used for logging resulted in 10-minute averages in 4 meter bins. The averaged data are stored to disk and backed up every few days. ADCP logging was stopped on August 5 at 11:13 Z in Halifax Harbour. B.3. CONTINUOUS FLOW MULTISENSOR PACKAGE (CFMP) (Jeff Anning) Water from approximately a depth of 4m was continuously pumped to the forward lab. The temperature, conductivity and fluorescence was measured and logged every 30 sec. The temperature and conductivity were measured with Seabird sensors (SBE 3F temperature sensor S.N. 032169 and SBE 4 conductivity sensor S.N. 040817) and the fluorescence by a Wetlabs flow through fluorometer (WSIS- 621PSS). Incident Photosynthetically Active Radiation was measured with a Li- Cor Spherical Quantum Sensor and this data was merged with the sea water parameters. Exact time and positions were provided by a Northstar GPS unit and logged with the other data. In addition, discrete water samples were collected at regular intervals by an auto sampler for later analysis for nitrate and silicate. The computer logged the time and position of these discrete samples. B.4. XBT and XCTD (Igor Yashayaev) Expendable Bathythermographs were routinely deployed along the AR7W line on the way from Labrador to Greenland and in the area shown in figure B.4.2. The XBTs were model T4 and T7 from Sparton of Canada. These types of probes are capable of measuring to maximum depths of 500 m (T4) and 800 m (T7) at the full cruising speed 15 knots. The vertical resolution of the measurements was about 0.6-0.8 m. 107 XBTs were launched during the cruise (Table A.2.1 lists the operation numbers when these were deployed). Continuous deployment of XBTs along the AR7W line at 2-4 kilometer intervals revealed inhomogeneities in the thermal structure of the upper layer. Dominant scales appear to be between 20 and 40 kilometers. Preliminary data are shown in Figure B.4.1. A couple miles to the east of the site 21 (according to the standard AR7W/L3 station notation) XBT measurements revealed an intense cold eddy. This eddy was resurveyed with XBTs soon after completion of AR7W line. This XBT survey helped us to locate the center of the eddy. Figure B.4.2 demonstrates the average temperature between 100 m and 700 m from all XBT and CTD profiles in the area where we found the eddy. In addition, we conducted a full depth CTD station, some net tows and we deployed a profiling float at the location identified from the XBT survey as the center of the eddy. FIGURE B.4.1: Temperature in the upper 800 metres along the AR7W section. Bold arrows mark the positions of the CTD stations; vertical bars the positions of XBT drops. FIGURE B.4.2: Average Temperature for the 100-700 metre layer in the vicinity of the cold core eddy mapped on the eastern end of the AR7W section during Hudson 2003-038. B.5. MVP (Allyn Clarke) The Moving Vessel Profiler (MVP) system was deployed while the vessel was in transit between near Station 21 on the AR7W section and station 10 on the L4 line. The system was activated every 15 minutes. The system cable had a fault around 480 metres, so for the vessel cruising speed of 12.4 knots, profiles were limited to a little better than 160 metres. The system was configured with an Applied Microsystems Ltd, CTD Microsensor Instrument with serial number 7013. This CTD is equipped with the following sensors. Sensor Type Range Accuracy ------------ -------------------- ---------------- ----------------- Pressure Strain gauge 0 - 500 dbars ±0.15 dbars Conductivity Platinized electrode 0 - 7 (C Ratio) ±0.0001 (C Ratio) Temperature Thermistor -2 to 32 °C ±0.0012 °C The CTD sampled at 25 scans/second. The MVP was also equipped with a WetLabs Model WS1S-120.SS #9602010 fluorometer. B.6. METEOROLOGICAL OBSERVATIONS The ship's crew logged routine reporting of meteorological variables. B.7. ATMOSPHERIC CHEMISTRY There was no atmospheric chemistry program. __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ APPENDIX 1: OPERATION NOTES REPORT (sorted by Operation ID Number) TABLE F.11: Operation Notes Note Number: 2 | There were problems with cables and Entry Time: 14/Jul/2003 12:58:49 | connections during this cast, so it was Note Made By: Jeff Jackson | aborted. No samples were collected. Operation ID: 16 | -----------------------------------|------------------------------------------------- Note Number: 1 | Allyn intended for this station to be a Entry Time: 14/Jul/2003 9:07:01 | CTD only cast, but we did not know so we Note Made By: Jeff Jackson | fired 4 bottles before he told us just to Operation ID: 21 | bring it up and out. No samples were | taken from the fired bottles. -----------------------------------|------------------------------------------------- Note Number: 3 | Primary Salinity went to very high values Entry Time: 27/Jul/2003 11:48:19 | from 15 to 50 metres on down cast of Note Made By: Allyn Clarke | L3_19. Possibly a pump problem. Operation ID: 220 | -----------------------------------|------------------------------------------------- Note Number: 4 | Jeff did not remove hoses from CTD Entry Time: 27/Jul/2003 19:03:07 | sensors, as he did not know to remove Note Made By: Jeff Jackson | them. So there may have been a time Operation ID: 230 | delay problems within the data. -----------------------------------|------------------------------------------------- Note Number: 5 | When initiating the deployment of the Entry Time: 28/Jul/2003 12:29:47 | LADCP on station L3_23, the LADCP failed Note Made By: Allyn Clarke | to wake up. Tried re-plugging the cable Operation ID: 261 | a couple of times without success. | Plugged the cable in the winch room | directly into the LADCP pressure-case and | successfully woke up the LADCP and | initiated the deployment. -----------------------------------|------------------------------------------------- Note Number: 6 | There was a low salinity and oxygen Entry Time: 29/Jul/2003 9:35:06 | feature on primary oxygen and salinity Note Made By: Allyn Clarke | around 1300 metres on the down trace that Operation ID: 286 | was absent on the up. Looks like a pump | failure if it was not on secondary line too. -----------------------------------|------------------------------------------------- Note Number: 7 | CTD began failing at about 1380 metres Entry Time: 29/Jul/2003 14:36:47 | and failed completely at 1499. Error Note Made By: Allyn Clarke | light on, data light flickering but no Operation ID: 291 | data. Recovering cast at 75 metres/min. | Biological sensors going deeper than they | should have gone actually caused the CTD problem. -----------------------------------|------------------------------------------------- Note Number: 8 | Primary salinity and primary oxygen Entry Time: 30/Jul/2003 13:12:35 | failed several times on the down trace. Note Made By: Allyn Clarke | Possibly the primary pump. Processing of Operation ID: 353 | the CTD records failed - could not open | 038a353.con. Allyn accidentally mistyped | 353 as 253 into the Seabird software. -----------------------------------|------------------------------------------------- Note Number: 9 | MVP failed on descent. Recovered fish. Entry Time: 30/Jul/2003 17:28:11 | Wiggled all the wires. Opened the fish Note Made By: Allyn Clarke | and cleaned the connections. Could not Operation ID: 377 | reproduce the fault. Returned to the | water and sampling program. Derek and | Rick worked on fish. ______________________________________________________________________________ ______________________________________________________________________________ APPENDIX 2: PROVOR FLOAT LOGS PROVOR Float Launch Serial No. MT-103 -------------------------------------------------------------------------------- System Argos ID dec. 30235 | Hex: D86E3 Buoyancy ID: 298 | Sensor ID: 373 Argos PTT ID: 17 | Buoyancy Controller: 32 Software Version: SN1156 1.4 | | Start Date: 15 July 2003 | Time: 4:20 UT Cycle Period: 10 days Drift Depth: 2000 m | Profile Depth: 2000 m Transmission Period: 45 seconds | Transmission Duration: 9 hours | Deployment Date: 15 July 2003 | Time: 4:32 UT By: Derek Britain | Vessel: Hudson | Event No. 40 Latitude: 42 32.767 N | Longitude: 61 25.071 W | Water Depth: 2700 m | (Must be deeper than 2500 meters) | Nearest CTD Event Operation ID:| 37 Date: 15 July 2003 | Time: 00:41 UT Latitude: 42 31.891 N | Longitude: 61 23.981 W Max Depth: 2700 m | Any problems associated with the start up and deployment operation: No PROVOR Float Launch Serial No. MT-104 -------------------------------------------------------------------------------- System Argos ID dec. 29855 | Hex: D27ED Buoyancy ID: 299 | Sensor ID: 377 Argos PTT ID: 56 | Buoyancy Controller: 39 Software Version: SN1156 1.4 | | Start Date: 28 July 2003 | Time: 18:13 UT Cycle Period: 10 days Drift Depth: 2000 m | Profile Depth: 2000 m Transmission Period: 45 seconds | Transmission Duration: 9 hours | Deployment Date: 28 July 2003 | Time: 18:45 UT By: Boyce/Clarke | Vessel: Hudson 2003-038 | Event No. 271 Latitude: 60 19.0321 N | Longitude: 48 35.1351 W | Water Depth: 2630 m | (Must be deeper than 2500 meters) | Nearest CTD Event: Operation No.| 270 Date: 28 July 2003:| Time: 16:37 UT Buoyancy ID: 60 17.675 N | Longitude: 48 33.304 W Max Depth: 2630 m | Any problems associated with the start up and deployment operation: • First message sent at 3.5 minutes after magnet removed, • 16 messages sent followed at least 8 clicks PROVOR Float Launch Serial No. MT-105 -------------------------------------------------------------------------------- System Argos ID dec. 30174 | Hex: D779F Buoyancy ID: 303 | Sensor ID: 427 Argos PTT ID: 16 | Buoyancy Controller: 7 Software Version: SN1156 1.4 | | Start Date: 30 July 2003 | Time: 03:50 UT Cycle Period: 10 days Drift Depth: 2000 m | Profile Depth: 2000 m Transmission Period: 45 seconds | Transmission Duration: 9 hours | Deployment Date: 30 July 2003 | Time: 04:12 UT By: Brittain/Yashayaev | Vessel: Hudson | Event No. 318 Latitude: 59 23.37 N | Longitude: 49 18.580 W | Water Depth: 3320 m | | Nearest CTD Event Operation No.| 315 Date: 30 July 2003 | Time: 01:16 UT Buoyancy ID: 59 24 N | Longitude: 49 22 W Max Depth: 3320 m | Any problems associated with the start up and deployment operation: • External pressure = 20 mbars • Salinity = -45.000 psu PROVOR Float Launch Serial No. MT-112 -------------------------------------------------------------------------------- System Argos ID dec. 30182 | Hex: D7983 Buoyancy ID: 311 | Sensor ID: 424 Argos PTT ID: 96 | Buoyancy Controller: 24 Software Version: SN1156 1.4 | | Start Date: 17 July 2003 | Time: 21:50 UT Cycle Period: 10 days Drift Depth: 2000 m | Profile Depth: 2000 m Transmission Period: 45 seconds | Transmission Duration: 9 hours | Deployment Date: 17 July 2003 | Time: 22:07 UT By: Brittian | Vessel: Hudson | Event No. 58 Latitude: 44 39.51 N | Longitude: 54 57.803 W | Water Depth: 2515 m | (Must be deeper than 2500 meters) | Nearest CTD Event: Operation No.| 57 Date: 17 July 2003 | Time: 17:18 UT Buoyancy ID: 44 40.0 N | Longitude: 56 6.0 W Max Depth: 1700 m | Any problems associated with the start up and deployment operation: • On checkout the following parameters were different from their optimal values as stated in the manual • EXT. SALINITY READ -45 PSU RATHER THAN 0 PSU • INT. VACUUM READ 675 NBAR RATHER THAN 700 PROVOR Float Launch Serial No. MT-119 -------------------------------------------------------------------------------- System Argos ID dec. 30395 | Hex: DAEDA Buoyancy ID: 326 | Sensor ID: 619 Argos PTT ID: 4 | Buoyancy Controller: Software Version: SN1156 1.4 | | Start Date: 29 July 2003 | Time: 18:21:30 UT Cycle Period: 10 days Drift Depth: 2000 m | Profile Depth: 2000 m Transmission Period: 45 seconds | Transmission Duration: 9 hours | Deployment Date: 29 July 2003 | Time: 19:00 UT By: Boyce/Clarke | Vessel: Hudson | Event No. 294 Latitude: 59 42.682 N | Longitude: 49 07.558 W | Water Depth: 3200 m | | Nearest CTD Event: Operation No.| 293 Date: 29 July 2003 | Time: 17:32 UT Buoyancy ID: 59 43.887 N | Longitude: 49 8.374 W Max Depth: 3200 | Any problems associated with the start up and deployment operation: • External Pressure 40 mbars • Salinity - 45.00 psu • Messages began at 18:24;50, 16 messages followed by 8 clicks PROVOR Float Launch Serial No. MT-120 -------------------------------------------------------------------------------- System Argos ID dec. 30408 | Hex: DB217 Buoyancy ID: 315 | Sensor ID: 616 Argos PTT ID: 57 | Buoyancy Controller: 10 Software Version: SN1156 1.4 | | Start Date: 27 July 2003 | Time: 6:22 UT Cycle Period: 10 days Drift Depth: 2000 m | Profile Depth: 2000 m Transmission Period: 45 seconds | Transmission Duration: 9 hours | Deployment Date: 27 July 2003 | Time: 7:36:28 UT By: Brittain/Yashayaev | Vessel: Hudson | Event No. 208 Latitude: 58 13.274 N | Longitude: 50 53.777 W | Water Depth: 3481 m | (Must be deeper than 2500 meters) | Nearest CTD Event: Operation No.| 207 Date: 27 July 2003 | Time: 06:08 UT Latitude: 58 12.853 N | Longitude: 50 54.1076 W Max Depth: 3480 m | Any problems associated with the start up and deployment operation: • Not sure if the start time given for this float was the actual start time or the time the various parameters were modified in preparation for the starting of the float. ______________________________________________________________________________ ______________________________________________________________________________ APPENDIX 3: MOORING LOGS RECOVERY Mooring No: 1452 Ship: Hudson Cruise No: 2003-038 Date: July 25, 2003 Mooring Tech: Boyce/Brittain Type of Nav: GPS Sea State: 1/2 m waves Weather Conditions: S 10 knots clear until 20:25 then heavy fog until 21:30 when fog lifted Cancel Notship: Yes No RECOVERY LOG: Time (Z) Instrument Remarks -------- -------------- -------------------------------------------------------------- 16:47 Release 808 Sent enable command distance of 2.5 cables, no clear response but was getting transponder replies at a variety of ranges. Steadiest response was 4.5 km 16:52 More enable commands sent at distances of 320 - 340 metres. Still getting a wide variety of ranges from release 808 17:12 Release 888 Sent enable command, decided that we were transponding on both releases but at a far range ~ 5 km. Steaming slowly to WSW in search 18:05 3.3 km WSW of mooring site, still closing on release 18:22 Range of 1480 m on 808 at 56 38.8207 N 52 28.2214 W Range of 3559 m on deep release 18:28 Release 808 Release command sent/mooring on way up 18:31 Float 1 Float sighted on surface 2 cables to east of vessel 18:54 Buoy hooked on 19:00 Seacat 1628 On board 19:04 ACM 5567 Out of water/rotor free 19:15 Trap # 1 Draining water out of the top of the trap carousalOn board, bottom bridle removed 19:20 Seacat 1624 Out of water, on board 19:25 Seacat 2398 Out of water, on board 19:30 ACM 5569 Out of water, on board 19:34 2 SUBs Out of water - remained submerged throughout recovery 19:37 2 SUBs Out of water - remained submerged throughout recovery 19:41 Seacat 1626 Out of water 19:45 Trap # 2 Out of water - draining through bottom of the carousal 19:54 ACM 5577 Out of water/rotor free 19:57 Release 808 On board 20:20:11 Release 888 Closest approach 56 38.6421 N 52 28.0869 W 3544 m range 20:22 Release 888 Release command sent/mooring released 21:25 Sighted on surface after a bit of a search in the fog 21:31 2 BUB Hooked on 21:38 Seacat 2395 On board 21:45 ACM 6402 Out of water/rotor free 21:45 3BUB Out of water 21:54 Seacat 2393 Out of water 22:03 Seacat 1896 Out of water 22:05 ACM 6409 Out of water/rotor free 22:12 3BUB Out of water 22:19 Release 885 Out of water 22:23 3BUB Out of water 22:26 ACM 7134 Out of water/rotor free 22:29 3 BUB & release Out of water/both balls & hardhats of bottom package were broken away __________________________________________________________________________________________________________________ RECOVERY Mooring No: 1453 Ship: Hudson Cruise No: 2003-038 Date: July 24, 2003 Mooring Tech: Boyce/Brittain Type of Nav: GPS Sea State: calm Weather Conditions: calm Cancel Notship: Yes No RECOVERY LOG: Time (Z) Instrument Remarks -------- -------------- -------------------------------------------------------------- 10:22 Enabled release, distance 3.4 cables, range 1200 m 10:23 Release command at 2.73 cables, mooring released 10:35 On surface 10:44 Hooked on 10:47 Top float out of water/wire to ACM caught over top of float 10:50 ACM 4208 On board/rotor OK 10:53 Release & 2BUB On board - release snarled __________________________________________________________________________________________________________________ RECOVERY Mooring No: 1457 Ship: Hudson Cruise No: 2003-038 Date: July 19, 2003 Mooring Tech: Scotney/Boyce/Brittain Type of Nav: GPS Sea State: light ground swell Weather Conditions: thick fog, visibility less than a cable, SSW 10 Cancel Notship: Yes No RECOVERY LOG: Time (Z) Instrument Remarks -------- -------------- -------------------------------------------------------------- April 24, CCGS Teleost mooring interrogated successfully. Appears in 2003 position. 19 July GB 'R' Hooked on/lifted on deck 09:33 09:55 GB 'R' Anchor on board 10:12 release Finally responded to enable command at 3.3 cables. Difficulty locating release/eventually identified signal from 1 n.mile range 12:00 release Release command sent/mooring released 12:16 Bridge sighted float on surface 12:18 Buoy hooked on 12:23 Buoy & MicroCat out of water 12:28 ADCP 0239 On board 12:30 2 BUB On board 12:35 ACM 7650 On board - rotor spinning 12:39 ACM 4406 On board - rotor free 12:42 3 BUB & release On board __________________________________________________________________________________________________________________ RECOVERY Mooring No: 1458 Ship: Hudson Cruise No: 2003-038 Date: July 19, 2003 Mooring Tech: Scotney/Boyce/Brittain Type of Nav: GPS Sea State: light ground swell Weather Conditions: fog, SW 10 Cancel Notship: Yes __________ No RECOVERY LOG: Time (Z) Instrument Remarks -------- -------------- -------------------------------------------------------------- April 24, CCGS Teleost. Release interrogated successfully. 2003 Appears on position. July 19, GB 'U' Hooked on, bottom shackle not on nylon bushing 2003 13:41 14:06 GB 'U' Snarl in bottom chain (about 15 m chain involved) 14:14 Anchor onboard 15:00 Positioned release - within 1 cable of position, then 4.9 cables from site - release command sent/released 15:02 Float on surface 15:14 Hooked on buoy 15:17 Buoy, AC 6403 Out of water, on deck, rotor free 15:26 ACM 6411 Out of water, rotor free 15:32 ACM 3584 & 3 Out of water in a snarl, rotor free BUB & Microcat 15:40 ACM 3306 Out of water, rotor free 15:44 2 BUB Snarl, out of water 15:49 ACM 2663 & Out of water, rotor free Microcat 15:51 3BUB & release Out of water __________________________________________________________________________________________________________________ RECOVERY Mooring No: 1466 Ship: Hudson Cruise No: 2003-038 Date: July 22, 2003 Mooring Tech: Scotney/Boyce/Brittain Type of Nav: GPS Sea State: 0.2 m waves Weather Conditions: light airs Cancel Notship: Yes No RECOVERY LOG: Time (Z) Instrument Remarks -------- -------------- -------------------------------------------------------------- 22:06 Release 809 Release enabled, slant range 175 m at distance of 0.7 cables from mooring site 22:10 Mooring is released 22:11 Sighted on surface 22:17 Hooked on 22:20 All on board __________________________________________________________________________________________________________________ RECOVERY Mooring No: 1467 Ship: Hudson Cruise No: 2003-038 Date: July 22, 2003 Mooring Tech: Scotney/Boyce/Brittain Type of Nav: GPS Sea State: 0.2 m waves Weather Conditions: light airs Cancel Notship: Yes No RECOVERY LOG: Time (Z) Instrument Remarks -------- -------------- -------------------------------------------------------------- 22:22 Release 889 Release not responding to enable command at distance of 2.6 cables from mooring site. After switching to over the side transducer it appeared that the release was responding to transponder commands 22:41 Release command sent, not sure if the command was received 22:50 Release command sent again with a positive reply. Slant range 118 metres at distance of 0.7 cables 22:52 Sighted by bridge 22:57 Hooked on 23:00 All on board __________________________________________________________________________________________________________________ RECOVERY Mooring No: 1474 Ship: Hudson Cruise No: 2003-038 Date: July 15, 2003 Mooring Tech: Scotney/Boyce/Brittain Type of Nav: GPS 15 July Sea State: 1/2 m. sea/swells Weather Conditions: clear, SW 10-15 16 July Sea State: 1 m seas Weather Conditions: cloudy/rain showers then clear, S 15-20 dropping to 5-10 Cancel Notship: Yes No RECOVERY LOG: Time (Z) Instrument Remarks -------- -------------- -------------------------------------------------------------- June 18, 2003 06:55Z signal being received from Argos Beacon Syntatic float, microCat & 25 m of wire recovered by Edward Cornwallis at ~ 15:30 Z June 19, 2003, 43 29.685 N 57 00.090W 15 July Release 892 Approaching mooring ranging on the release 16:00 16:03 Closest approach, range 3158 m. 43 23.60 N 57 40.861 W, about 1 cable west of best position when deployed 16:12 Closest approach, range 3196 m. 43 23.479 N 57 40.988 W 16:17 Closest approach, range 3164 m. 43 23.75 N 57 41.232 W 16:22 Closest approach, range 3172 m. 43 23.967 N 57 40.904 W 16:28 Closest approach, range 3196 m. 43 23.731 N 57 40.567 W Best estimated position 43 23.75 N 57 40.90 W 16:39 Release command sent/release activated/no movement off bottom 17:54 Start lowering drag 7.8 cables from best position 18:11 1000 metres of drag cable out, drag weight and release 811 added aqnd in the water 20:19 Pulling in cable, range 3182 metres, 2.44 cables from best position 00:06 Failed to hook mooring in two tries - will try again tomorrow morning 09:15 Drag Set drag, began a short tight drag within 2 cables of mooring 11:15 Began to pull back after a half moon tow past mooring site - no success 13:00 Drag Start down again 8 cables NE of site. 14:10 Passed 1 cable SE of site 14:45 Mooring release appeared to descend closer to bottom 15:15 Commenced turn to starboard 22 cables SW of site steaming along reciprocal course 16:20 Passed site 1.3 cables to the NW 17:20 Stopped 20 cables NE of site and began hauling in cable. Mooring appears caught 19:25 Drag weight alongside rail with ACM 4350 & Microcat plus snarl. Shaft of ACM bent. BUB packages are off port quarter 19:53 Grapnels recovered 20:10 Removed ACM 4350 from wire, began hauling on line to BUB packages 20:15 ACM 3196 Out of water/rotor ok & 2SUBs Sediment Trap C Shroud is broken/on board 20:25 Release 742 On board 20:35 ACM 768 & Out of water, rotor ok, shaft bent sediment trap C 20:44 3 BUB On board 20:45 3 BUB & On board release 892 20:48 3 SUBs On board 20:54 MicroCat 2437 On Board Mooring recovery complete __________________________________________________________________________________________________________________ PLACEMENT Mooring No: 1475 Geographic Area: Labrador Slope Intended Duration: 1year Ship: Hudson Cruise No: 2003-038 Date: July 24, 2003 Sea State: calm Weather Conditions:calm Mooring Tech: Boyce/Brittain Navigation Inst. GPS Notship # ______________ Latitude: 55 07.171 N Longitude: 54 05.554 W Time of Fix: 12:36 Depth: Raw: 571 fathoms Corrected: 1050 meters Main Float: Type: Hibernia Markings: Argo Beacon: Type: _________ ID: S/N Light: Type: none Colour/Rate: Mooring Line: Type: 3/16 jacket Colour: yellow Release: Type: 965 A S/N: 883 Release Code: A/C /B Id: 14 Rx: 11.0 Tx: 10.0 PLACEMENT LOG Time (Z) Instrument Remarks -------- -------------- -------------------------------------------------------------- 11:40 Anchor, release Over the rail, on slip line & 2 BUB 11:42 ACM 5002 Float and ACM in water 11:44 Anchor away 55 07.2396 N 54 05.6028 W depth 571 fathoms = 1050 metres 12:16:25 Closest approach on north to south transect 55 07.1712 N 54 05.6027 W range 1086 metres 12:36:45 Closest approach on west to east transect 55 07.2153 N 54 05.5545 W range 1085 metres Best Position 55 07.171 N 54 05.554 W __________________________________________________________________________________________________________________ PLACEMENT Mooring No: 1491 Geographic Area: Scotian Slope Intended Duration: 10 months Ship: Hudson Cruise No: 2003-038 Date: July 14, 2003 Sea State: 0.5 m swell Weather Conditions: 5-10 kts SW Mooring Tech: Scotney/Boyce/Brittain Notship # ______________ Navigation Inst. GPS Latitude: 42 59.145 N Longitude: 61 44.924 W Time of Fix: 4:03 Depth: Raw: 160 fathoms Corrected: 298 meters Main Float Type: Braincon Markings: 002 Argo Beacon: Type: Siemac ID: S/N 22191 Light: Type: none Colour/Rate: Mooring Line: Type: 3/16 jacket Colour: yellow Release: Type: 965 A S/N: 810 Release Code: B/A/C Rx: 12.0 Tx: 10.0 PLACEMENT LOG Time (Z) Instrument Remarks -------- -------------- -------------------------------------------------------------- 13:30 Streamlined BB, In water microCat 1548, 36 m 13:32 Braincon 2 In water 13:31 ACM 5359 In water, 53 m 13:35 ACM 1607 37 m in water 13:38 2 BB 35 m 13:40 ACM 2664 90 m 13:45 3BB, release Out board 810 13:50 Anchor away 42 59.1449 N 61 44.8803 W 14:04 Closest approach at 42 59.1449 N 61 44.9239 W range 315 m depth 298 m. Best Position 42 59.145 N 61 44.924 W __________________________________________________________________________________________________________________ PLACEMENT Mooring No: 1492 Geographic Area: Laurentian Channel Intended Duration: 1 year Ship: Hudson Cruise No: 2003-038 Date: July 17, 2003 Sea State: 0.5-1 m swell, 0.5 m sea Weather Conditions: 5-10 kts SW, decreasing and fog Mooring Tech: Scotney/Boyce/Brittain Notship # ___________ Navigation Inst. GPS Latitude: 44 49.885 N Longitude: 56 10.585 W Time of Fix: 15:00 Depth: Raw: 212 fathoms Corrected: 394 meters Main Float: Type: Brncon Markings: 003 Beacon: Type: Argo ID: S/N ID 978 Light: Type: none Colour/Rate: Mooring Line: Type: 3/16 jacket Colour: yellow Release: Type: 965 A S/N: 886 Release Code: A/C/B Rx: 9.5 Tx: 10.0 PLACEMENT LOG Time (Z) Instrument Remarks -------- -------------- -------------------------------------------------------------- 12:10 Float 3, In water ADCP 3469, Microcat 1711, 53 m 12:13 ACM 7122, In water RCM 265, 73 m 12:17 ACM 4355, 45 m In water 12:20 3 BUB, 50 m In water 12:23 ACM 5032, 74 m In water 12:26 ACM 5572, 9 m In and out of water 12:30 3 BUB, release In water and weight transferred to anchor 886 12:34 Anchor away 44 49.78 N 56 10.49 W 13:18 Guard Buoy K In water 13:24 Guard Buoy K Anchor away at 44 49.689 N 56 11.034 W 390 metres 13:42 Guard Buoy W In water 13:54 Guard Buoy W Anchor away at 44 49.577 N 56 10.554 W 419 metres 14:22 Guard Buoy E In water 14:37 Guard Buoy E Anchor away at 44 49.949 N 56 10.365 W 390 metres 15:00 Release 886 Closest approach 44 49.885 N 56 10.585 W, range 401 metres 15:49 Release 886 Closest approach 44 49.846 N 56 10.593 W, range 450 metres Best Position 44 49.885 N 56 10.585 W __________________________________________________________________________________________________________________ PLACEMENT Mooring No: 1493 Geographic Area: Flemish Pass Intended Duration: 1 year Ship: Hudson Cruise No: 2003-038 Date: July 19, 2003 Sea State: 0.5 m swell, 0.5 m sea Weather Conditions: 10 kts SW fog Mooring Tech: Scotney/Boyce/Brittain Notship # ______________ Navigation Inst. GPS Latitude: 46 59.954 N Longitude: 47 17.085 W Time of Fix: 17:43 Depth: Raw: 215 fathoms Corrected: 399 meters Main Float: Type: Braincon Markings: 004 Beacon: Type: Argo ID: S/N ID 1054 Light: Type: none Colour/Rate: Mooring Line: Type: 3/16 jacket Colour: yellow Release: Type: 965 A S/N: 807 Release Code: E/D/F Rx: 10.0 Tx: 11.5 PLACEMENT LOG Time (Z) Instrument Remarks -------- -------------- -------------------------------------------------------------- 16:50 Float, ACM 7131, In water 24 m 16:53 ACM 8695, 49 m In water 16:55 ACM 5573, 45 m In water 16:59 Minilog 2524, In water 3BUB, 99 m 17:02 ACM 6405, 74 m In water 17:05 ACM 7127, 9 m In and out of water 17:06 3 BUB, release In water and weight transferred to anchor 807 17:11 Anchor away 47 00.062 N 47 17.1226 W depth 215 fathoms 17:28 Closest 46 59.9538 N 47 17.1617 W slant range < 215 m approach 17:43:30 Closest 46 59.9669 N 47 17.085 W slant range 406 metres approach Best Position 46 59.954 N 47 17.085 W 18:27 Guard Buoy Y In water 18:33 Guard Buoy Y Anchor away 18:50 Guard Buoy A In water 18:55 Guard Buoy A Anchor away __________________________________________________________________________________________________________________ PLACEMENT Mooring No: 1494 Geographic Area: Flemish Pass Intended Duration: 1 year Ship: Hudson Cruise No: 2003-038 Date: July 19, 2003 Sea State: 0.5 m swell, 0.5 m sea Weather Conditions: 10 knots, SW fog Mooring Tech: Scotney/Boyce/Brittain Notship # ______________ Navigation Inst. GPS Latitude: 46 59.89 N Longitude: 47 02.1 W Time of Fix: 22:56 Depth: Raw: 608 fathoms Corrected: 1118 metres Main Float: Type: Braincon Markings: 001 Beacon: Type: Argo ID: S/N ID 2342 Light: Type: none Colour/Rate: Mooring Line: Type: 3/16 jacket Colour: yellow Release: Type: 965 A S/N: 884 Release Code: A/C/B Rx: 9.0 Tx: 10.0 PLACEMENT LOG Time (Z) Instrument Remarks -------- -------------- -------------------------------------------------------------- 21:16 Float, Microcat In water 2305, 74 m 21:19 ADCP 0239, 123 m In water 21:24 ACM 8697, 159 m In water 21:29 3BUB, 36 m In water 21:32 Microcat 2307, In water ACM 3300, 297 m 21:39 ACM 4154, 146 m In water 21:43 2 BUB, 145 m In water 21:45 Microcat 1918 Clamped at mark on wire, in water 21:50 ACM 4998, 9 m In water 21:51 3 BUB, release In water, towing on chain about 1 nautical mile to position 22:17 Anchor away 47 00.1103 N 47 02.0906 W 608 fathoms, 1118 metres 22:56:30 Closest approach 46 59.89 N 47 2.2125 W range < 1145 metres Best position 46 59.89 N 47 2.1 W 23:24 Guard Buoy B & In water Minilog 23:43 Guard Buoy B Anchor away __________________________________________________________________________________________________________________ PLACEMENT Mooring No: Ralph Geographic Area: Scotian Slope Intended Duration: 2 months Ship: Hudson Cruise No: 2003-038 Date: July 14, 2003 Sea State: 0.5 m swell Weather Conditions: 5-10 kts SW Mooring Tech: Scotney/Boyce/Brittain Notship # ______________ Navigation Inst. GPS Latitude: 42 59.496 N Longitude: 61 44.722 W Time of Fix: 10:37 Depth: Raw: 152 fathoms Corrected: 284 metres Main Float: Type: BB Markings: none Argo Beacon: Type: ID: S/N Light: Type: none Colour/Rate: Mooring Line: Type: synthtic Colour: blue Release: Type: 966 A S/N: 337 Release Code: Rx: 9.75 Tx: 10.0 PLACEMENT LOG Time (Z) Instrument Remarks -------- -------------- -------------------------------------------------------------- 10:26 Ralph In water 10:37 Ralph On bottom 42 59.4955 N 61 44.7220 W 10:51 Anchor away 42 59.5341 N 61 45.0632 W __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ DATA PROCESSING NOTES Date Contact Data Type Data Status Summary -------- ---------- --------- ----------------------------------------------- 12/22/03 Jackson SUM/DOC Submitted/Public The file format is: WOCE Format (ASCII) The archive type is: Zip The data type(s) is: Summary (navigation) Documentation The file contains these water sample identifiers: Cast Number (CASTNO) Station Number (STATNO) JACKSON, JEFF would like the following action(s) taken on the data: Place Data Online Any additional notes are: none 01/15/04 JACKSON SUM Re-submission The file: C:\Datasets\2003-038\sum_file\2003038sum.txt - 155572 bytes has been saved as: 20040115.035943_JACKSON_HU2003038_2003038sum.txt in the directory: 20040115.035943_JACKSON_HU2003038 The data disposition is: Public The file format is: Plain Text (ASCII) The archive type is: NONE - Individual File The data type(s) is: Summary (navigation) The file contains these water sample identifiers: Cast Number (CASTNO) Station Number (STATNO) JACKSON, JEFF would like the following action(s) taken on the data: Place Data Online Any additional notes are: This a resubmission. An operation was missing from the first SUM file I sent. JACKSON, JEFF would like the following action(s) taken on the data: Place Data Online 01/16/04 Bartolacci SUM Data Update; Various changes, see note Updated sumfile sent by Jeff Jackson needed reformatting. Following edits were made: • Edited first header line to include line number cruise name and leg, ship name and date/name stamp. • Changed WOCE SECT to read AR07W instead of various alphanumeric designations. • Changed OPERATION ID TO STNNBR. • Aligned all columns to correct WOCE spacing. • Changed Lat. hemisphere designation from E to W on following stations: 15,119, 152, 158, 175, 180, 253, 365, 375, 412, 423, 433 as only one of 2 or more cast codes had erroneous hemishphere and none of the cast codes were near a hemisphere change. Ran file through sumchk. Sumchk would not accept the cast codes BD and ED (begin descent and end ascent) for 65 stations. Other than those warnings file passed with no errors and was placed in parent directory to replace previously submitted sumfile.