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RRS James Clark Ross JR20020506 (JR72, JR74)
Cruise summary report
Cruise Info. | |
Ship name (ship code) | RRS James Clark Ross (74JC) |
Cruise identifier | JR20020506 (JR72, JR74) |
Cruise period | 2002-05-06 — 2002-05-19 |
Status | Completed |
Port of departure | Stanley, Falkland Islands (Malvinas) |
Port of return | Montevideo, Uruguay |
Purpose | Research |
Objectives | Dynamoe - BSD Western Core Box Acoustics - cruise was part of a series of Q3 cruises carried out bi-annually for the Variability in the Southern Ocean Project (VSOE) (part of the Ocean Ecosystem Dynamics DYNAMOE programme). Cruise aims were to supplement biological and physical information collected during the seasons major core programme cruise (JR70) thus providing an intra-annual component to the understanding of the South Georgia marine ecosystem. Echo-sounder data collected during the cruise was used to calculate mean volume backscattering (MVBS) and to estimate zooplankton (primarily krill) biomass. CTD probe casts and XBT provided physical oceanography information.
Sea level work was also undetaken on this cruise (refer to JR74 cruise report). Geoff Hargreaves (POL) was the PSO for this work |
Chief scientist | Sharon Grant (British Antarctic Survey) |
Cruise report | (0.14 MB) (0.12 MB) |
Ocean/sea areas | |
General | South Atlantic Ocean |
Specific | South Georgia Zapiola Ridge |
Track charts | (0.03 MB) |
Measurements | |
Physical oceanography | |
Bathythermograph | Description: A number of XBTs were deployed throughout the cruise. No. of deployments not noted. |
CTD stations | Description: A number of CTD stations were worked throughout the cruise. No. of stations not noted. |
Subsurface temperature and salinity measurements | Quantity: number of observations = 1 Description: CTD test took place off the Falklands shelf and it went well. |
Current profiler (eg ADCP) | Quantity: number of observations = 1 Description: CTD test took place off the Falklands shelf and it went well. |
Sea level (inc. bot. press., inverted echosounder) | Quantity: number of deployments = 3 Description: bottom pressure recorders |
Sea level (inc. bot. press., inverted echosounder) | Quantity: number of observations = 1 Description: Servicing of Stanley sea level recorder |
Geology and geophysics | |
Multi-beam echosounding | Quantity: number of profiles = 2 Description: EM120 and EK500 profiles were made throughout the cruise. |