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RRS James Clark Ross JR20070206 (JR158)
Cruise summary report
Cruise Info. | |
Ship name (ship code) | RRS James Clark Ross (74JC) |
Cruise identifier | JR20070206 (JR158) |
Cruise period | 2007-02-06 — 2007-02-19 |
Status | Completed |
Port of departure | Rothera, Antarctica |
Port of return | Montevideo, Uruguay |
Purpose | Research |
Objectives | The purpose of the cruise was to map the positions of the Antarctic Coastal Current and the Antarctic Slope Front near the tip of the Antarctic Peninsula. This was principally carried out through the deployment of 40 surface drifters along a transect crossing the continental shelf and slope. Hydrographic data was also collected along this transect.
Deployment of drifters began in earnest on the 9th of February, following a strong storm, and continued during the offshore leg for approximately 24 hours. Hydrographic data was obtained on the return leg between the 10th and 12th of February. A short leg along part of the transect was completed to obtain shipboard ADCP data. |
Chief scientist | Karen J Heywood (University of East Anglia School of Environmental Sciences) |
Project | ADELIE |
Coordinating body | University of East Anglia (UEA) |
Cruise report | (5.09 MB) |
Ocean/sea areas | |
General | South West Atlantic Ocean (limit 20W) |
Specific | Weddell Sea, Southern Ocean |
Track charts | (0.07 MB) |
Measurements | |
Physical oceanography | |
Surface measurements underway (T,S) | Quantity: activity duration in days = 12 Description: Temperature, salinity, fluorescence collected throughout the cruise at a depth of approximately 10m. |
Water bottle stations | Quantity: number of samples = 155 Description: Approximately 8 bottle samples per CTD profile. Salinities were calibrated using IAPSO standard seawater (batch 144). |
CTD stations | Quantity: number of stations = 20 Description: Data collected with Sea-Bird 911 plus CTD system. Full depth profiles collected temperature, conductivity (salinity), dissolved oxygen, beam transmission, fluorescence. After processing, data is good to 2dB. |
Current profiler (eg ADCP) | Quantity: activity duration in days = 12 Description: 75kHz RD Instruments Ocean Surveyor (OS75) shipboard ADCP. Data valid to a least 700m depth. Data collected in 16m bins, processed profiles every 10 minutes. |
Current profiler (eg ADCP) | Quantity: number of profiles = 20 Description: 20 lowered Acoustic Doppler Current Profilers from a downward-looking 300kHz RDI Workhorse mounted on the CTD frame. Bottom-tracking was enabled. Data processing done with Lamont-Doherty software. |
Chemical oceanography | |
Oxygen | Quantity: activity duration in days = 11 Description: Underway dissolved oxygen measured by Aanderaa optode. 10s resolution (over 90000 individual readings). |
Oxygen | Quantity: number of samples = 155 Description: Samples collected for oxygen isotope analysis. |
Oxygen | Quantity: number of samples = 93 Description: Dissolved oxygen measured using whole-bottle Winklet titration. Samples collected during CTD casts. Measurements made to calibrate CTD oxygen sensor and underway oxygen measurements. |
Biology and fisheries | |
Acoustic reflection on marine organisms. | Quantity: activity duration in days = 12 Description: Simrad EK60 fishery echosounder. The EK60 was turned off at times to limit interference with shipboard ADCP and bottom sounder EA600. |
Moorings, landers, buoys | |
Physical oceanography | |
Surface drifters/drifting buoys | 63° 25' 17" S 52° 33' 37" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 50' 59" S 50° 2' 16" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 48' 35" S 50° 13' 39" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 46' 49" S 50° 25' 7" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 44' 27" S 50° 36' 37" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 42' 7" S 50° 48' 2" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 40' 49" S 50° 58' 49" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 39' 37" S 51° 9' 59" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 52' 49" S 49° 48' 29" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 54' 0" S 49° 35' 17" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 57' 1" S 49° 8' 56" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 64° 4' 13" S 48° 19' 36" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 64° 10' 41" S 47° 29' 5" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 9' 44" S 54° 53' 56" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 9' 36" S 54° 28' 47" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 9' 34" S 54° 4' 18" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 11' 25" S 53° 53' 20" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 12' 38" S 53° 43' 13" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 14' 19" S 53° 31' 28" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 16' 22" S 53° 19' 55" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 18' 1" S 53° 10' 12" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 19' 49" S 53° 0' 1" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 22' 48" S 52° 46' 48" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 34' 13" S 51° 43' 15" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 25' 17" S 52° 33' 37" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 25' 17" S 52° 33' 37" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 27' 0" S 52° 26' 24" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 28' 13" S 52° 18' 38" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 28' 49" S 52° 13' 15" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 29' 28" S 52° 7' 23" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 29' 28" S 52° 7' 23" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 29' 28" S 52° 7' 23" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 30' 39" S 52° 1' 13" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 31' 49" S 51° 55' 17" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 33' 0" S 51° 49' 13" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 34' 13" S 51° 43' 15" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 34' 13" S 51° 43' 15" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 35' 26" S 51° 37' 10" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 37' 13" S 51° 31' 16" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Surface drifters/drifting buoys | 63° 38' 27" S 51° 20' 25" W — Surface drifter drogued at 15m, deployed between 8-10 February 2007, not recovered. SST measured along with currents. |
Neutrally buoyant floats | 63° 36' 59" S 51° 30' 59" W — Argo profiling floats, depth 1000m. Deployed on 11-12 February 2007, not recovered. Float model APEX-SBE, WMO IDs 7900151-7900154. |
Neutrally buoyant floats | 58° 6' 59" S 52° 15' 0" W — Argo profiling floats in the ACC for Brian King, depth 1000m. Deployed on 14 February 2007, not recovered. Float model APEX-SBE, WMO IDs 1900939-1900942. |
Neutrally buoyant floats | 58° 47' 59" S 52° 8' 59" W — Argo profiling floats in the ACC for Brian King, depth 1000m. Deployed on 14 February 2007, not recovered. Float model APEX-SBE, WMO IDs 1900939-1900942. |
Neutrally buoyant floats | 63° 30' 0" S 52° 1' 59" W — Argo profiling floats, depth 1000m. Deployed on 11-12 February 2007, not recovered. Float model APEX-SBE, WMO IDs 7900151-7900154. |
Neutrally buoyant floats | 63° 31' 59" S 51° 54' 59" W — Argo profiling floats, depth 1000m. Deployed on 11-12 February 2007, not recovered. Float model APEX-SBE, WMO IDs 7900151-7900154. |
Neutrally buoyant floats | 63° 33' 59" S 51° 42' 59" W — Argo profiling floats, depth 1000m. Deployed on 11-12 February 2007, not recovered. Float model APEX-SBE, WMO IDs 7900151-7900154. |
Neutrally buoyant floats | 57° 0' 0" S 52° 27' 0" W — Argo profiling floats in the ACC for Brian King, depth 1000m. Deployed on 14 February 2007, not recovered. Float model APEX-SBE, WMO IDs 1900939-1900942. |
Neutrally buoyant floats | 57° 33' 59" S 52° 21' 0" W — Argo profiling floats in the ACC for Brian King, depth 1000m. Deployed on 14 February 2007, not recovered. Float model APEX-SBE, WMO IDs 1900939-1900942. |