Resources

RRS James Clark Ross JR19930203 (JR04)

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS James Clark Ross (74JC)
Cruise identifierJR19930203 (JR04)
Cruise period1993-02-03 — 1993-03-23
StatusCompleted
Port of departureStanley, Falkland Islands (Malvinas)
Port of returnStanley, Falkland Islands (Malvinas)
PurposeResearch
ObjectivesThe main tasks were:
1. 3 weeks of coring in the Falkland Trough, central Scotia Sea and NW Weddell Sea, to study glacial/interglacial circulation changes.
2. A similar period of marine geophysical investigation of the Bellingshausen Sea Basin around Peter 1 Island.
3. A similar period of dredging along the axis of Bransfield Strait, for geochemical analysis.
4. En passant, refuelling the Signy Island Station and recovering 2 geological field parties from S Shetland Island sites.
Chief scientistPeter F Barker (British Antarctic Survey)
ProjectMarine Geology and Geophysics Scotia and Bellingshausen Seas
Coordinating bodyBAS
Cruise reportRRS James Clark Ross JR19930203 (JR04) cruise report jr04_93.pdf (1.75 MB) 
Ocean/sea areas 
GeneralSouth Atlantic Ocean
Track chartsRRS James Clark Ross JR19930203 (JR04) cruise track — jr04_93track.pdf (1.43 MB) 
Measurements 
Physical oceanography 
CTD stationsQuantity: activity duration in days = 21
Description: Coring took place, at 29 stations, in the Falkland Trough, Central Scotia Sea and NW Weddell Sea. Studying glacial/interglacial circulation changes.
Current metersQuantity: activity duration in days = 21
Description: Coring took place, at 29 stations, in the Falkland Trough, Central Scotia Sea and NW Weddell Sea. Studying glacial/interglacial circulation changes.
Geology and geophysics 
DredgeDescription: A period of dredging along the axis of Bransfiled Strait took place for geochemical analysis. No. of dredges not noted.
Core - soft bottomQuantity: activity duration in days = 21
Description: Coring took place, at 29 stations, in the Falkland Trough, Central Scotia Sea and NW Weddell Sea. Studying glacial/interglacial circulation changes.
Geophysical measurements made at depthQuantity: number of surveys = 1
Description: A marine geophysical investigation of the Bellingshausen Sea Basin took place during the cruise.
Single channel seismic reflectionQuantity: number of surveys = 1
Description: A marine geophysical investigation of the Bellingshausen Sea Basin took place during the cruise.
Gravity measurementsQuantity: number of surveys = 1
Description: A marine geophysical investigation of the Bellingshausen Sea Basin took place during the cruise.
Magnetic measurementsQuantity: number of surveys = 1
Description: A marine geophysical investigation of the Bellingshausen Sea Basin took place during the cruise.
Data held at BODC Get data
Series/Profiles 
6  CTD/STD cast
Reference numbers
Transmittance and attenuance of the water column
Temperature of the water column
Vertical spatial coordinates
Salinity of the water column
Density of the water column
Reference numbers
Transmittance and attenuance of the water column
Temperature of the water column
Vertical spatial coordinates
Salinity of the water column
Density of the water column

BODC idDate/TimeLocationDoc.
11966201993-02-19 16:50  — 1993-02-19 20:20 59° 53' 5" S  43° 4' 36" W  View metadata report for BODC series reference number 1196620
11965881993-02-08 09:20  — 1993-02-08 12:45 52° 22' 48" S  45° 59' 24" W  View metadata report for BODC series reference number 1196588
11966191993-02-17 03:30  — 1993-02-17 08:50 56° 44' 48" S  43° 16' 29" W  View metadata report for BODC series reference number 1196619
11965641993-02-04 23:00  — 1993-02-05 01:30 52° 55' 29" S  53° 41' 12" W  View metadata report for BODC series reference number 1196564
11966071993-02-12 06:20  — 1993-02-12 09:20 52° 8' 12" S  41° 8' 48" W  View metadata report for BODC series reference number 1196607
11965761993-02-06 18:50  — 1993-02-06 22:45 53° 55' 5" S  48° 2' 35" W  View metadata report for BODC series reference number 1196576