Cruise inventory
RRS James Cook JC041
Cruise summary report
| Cruise Info. | |
| 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 | |
| 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 | 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 | 58° 0' 50" S 61° 53' 9" W — Mooring (FSU II) [15/12/09 - 09:30 GMT - 3640m] |
| Current meters | 59° 58' 35" S 65° 59' 23" W — Mooring (FSU I) [16/12/09 - 16:00 GMT - 3250m] |
| 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] |
| Neutrally buoyant floats | 57° 24' 59" S 65° 57' 59" W — UK Argo float (# 4499) [18/12/09 - 08:30 GMT] |
| 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] |
| Data held at BODC | |
| 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 |
