Cruise inventory
RRS James Cook JC041
Cruise summary report
| Cruise Info. | |||||||||
| Ship name (ship code) | RRS James Cook (740H) | ||||||||
| Cruise identifier | JC041 | ||||||||
| Cruise period | 2009-12-05 — 2009-12-21 | ||||||||
| Status | Completed | ||||||||
| Port of departure | Punta Arenas, Chile | ||||||||
| Port of return | Punta Arenas, Chile | ||||||||
| Purpose | Research | ||||||||
| Objectives | The DIMES (Diapycnal and Isopycnal Mixing Experiment in the Southern Ocean) research project seeks to test and, if necessary, redefine the present paradigm of Southern Ocean mixing by obtaining systematic measurements of mixing, upwelling and their underlying driving processes in two contrasting regimes of the Antarctic Circumpolar Current (ACC) - the Southeast Pacific and the Southwest Atlantic. The JC041 cruise is the second cruise of the DIMES experiment and the first conducted in a British vessel. Its primary goals are: (1) to deploy a cluster of six U.K. moorings in Drake Passage to investigate how the energetic mesoscale eddies of the ACC are dissipated, and how they interact with the regional internal wave field; and (2) to deploy four Florida State University (FSU) sound sources in the same area to track a large set of isopycnal RAFOS floats deployed elsewhere by our American collaborators. | ||||||||
| Chief scientist | Alberto C Naveira Garabato (University of Southampton School of Ocean and Earth Science) | ||||||||
| Project | Diapycnal and Isopycnal Mixing Experiment in the Southern Ocean (DIMES) | ||||||||
| Coordinating body | National Oceanography Centre, Southampton | ||||||||
| Cruise report |  (7.64 MB) | ||||||||
| Ocean/sea areas | |||||||||
| General | Southern Ocean | ||||||||
| Specific | Drake Passage | ||||||||
| Track charts | (0.19 MB) | ||||||||
| Measurements | |||||||||
| Physical oceanography | |||||||||
| CTD stations | Quantity: number of stations = 4 Description: towed CTD [Temperature, Conductivity, Oxygen, Depth] | ||||||||
| CTD stations | Quantity: number of stations = 6 Description: CTD casts [Temperature, Conductivity, Oxygen, Depth] | ||||||||
| Moorings, landers, buoys | |||||||||
| Physical oceanography | |||||||||
| Current meters | 57° 0' 45" S 57° 50' 0" W — Mooring (C) [10/12/09 - 15:15 GMT - 4256m] | ||||||||
| Current meters | 55° 56' 17" S 58° 0' 0" W — Mooring (North East) [09/12/09 - 09:20 GMT - 3958m] | ||||||||
| Current meters | 56° 3' 41" S 57° 44' 53" W — Mooring (South East) [09/12/09 - 15:45 GMT - 4200m] | ||||||||
| Current meters | 55° 57' 28" S 57° 51' 17" W — Mooring (North West) [10/12/09 - 11:35 GMT - 4089m] | ||||||||
| Current meters | 56° 1' 26" S 57° 47' 28" W — Mooring (M) [11/12/09 - 19:00 GMT - 3777m] | ||||||||
| Current meters | 58° 3' 4" S 53° 38' 44" W — Mooring (FSU III) [14/12/09 - 01:00 GMT - 4150m] | ||||||||
| Current meters | 59° 58' 35" S 65° 59' 23" W — Mooring (FSU I) [16/12/09 - 16:00 GMT - 3250m] | ||||||||
| Current meters | 58° 0' 50" S 61° 53' 9" W — Mooring (FSU II) [15/12/09 - 09:30 GMT - 3640m] | ||||||||
| Neutrally buoyant floats | 56° 33' 59" S 65° 33' 59" W — UK Argo float (# 4498) [18/12/09 - 14:10 GMT] | ||||||||
| Neutrally buoyant floats | 59° 6' 0" S 65° 47' 59" W — FSU Iridium Apex float with acoustics (# 4779) [17/12/09 - 02:00 GMT] | ||||||||
| Neutrally buoyant floats | 57° 24' 59" S 65° 57' 59" W — UK Argo float (# 4499) [18/12/09 - 08:30 GMT] | ||||||||
| Data held at BODC | |||||||||
| Series/Profiles | |||||||||
| 1 Meteorological measurements with instrument aid | Date and time Wind speed and direction Horizontal spatial co-ordinates Air temperature Solar Radiation Raw light meter output Air pressure Visible waveband radiance and irradiance measurements in the atmosphere Date and time Wind speed and direction Horizontal spatial co-ordinates Air temperature Solar Radiation Raw light meter output Air pressure Visible waveband radiance and irradiance measurements in the atmosphere
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| 1 Ship's non-toxic supply | Metadata parameters Date and time Transmittance and attenuance of the water column Electrical conductivity of the water column Horizontal spatial co-ordinates Raw fluorometer output Temperature of the water column Salinity of the water column Chlorophyll pigment concentrations in the water column Metadata parameters Date and time Transmittance and attenuance of the water column Electrical conductivity of the water column Horizontal spatial co-ordinates Raw fluorometer output Temperature of the water column Salinity of the water column Chlorophyll pigment concentrations in the water column
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| Discrete samples | |||||||||
| 8 CTD frame plus rosette sampler | Salinity of the water column | ||||||||
| 21 Sample taken from ship's non-toxic supply | Salinity of the water column |
