RRS James Clark Ross JR20131221 (JR284, JR292)
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS James Clark Ross (74JC) |
| Cruise identifier | JR20131221 (JR284, JR292) |
| Cruise period | 2013-12-21 — 2014-01-01 |
| Status | Completed |
| Port of departure | Rothera, Antarctica |
| Port of return | Punta Arenas, Chile |
| Purpose | Research |
| Objectives | JR284: Marine geology and geophysics Antarctic Peninsula Pacific Margin
JR292: Annual cruise to recover and redeploy BPRs in northern and southern Drake Passage in support of the NERC National Capability project ACCLAIM. Tide gauges at Stanley, Rothera and British bases in the Weddell Sea (Signy Island) and Antarctic Peninsula (Vernadsky) are also serviced. |
| Chief scientist | Miguel Angel Morales Maqueda (National Oceanography Centre, Liverpool), Robert D Larter (British Antarctic Survey) |
| Project | ACCLAIM |
| Coordinating body | Natural Environment Research Council (NERC) |
| Ocean/sea areas | |
| General | Southern Ocean |
| Specific | Weddell Sea |
| Track charts |  (0.97 MB) |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Quantity: activity duration in days = 13 Description: BAS oceanlogger, temperature, conductivity |
| Bathythermograph | Quantity: number of profiles = 2 Description: Expendable bathythermograph T7 probes |
| CTD stations | Quantity: number of stations = 2 Description: Seabird SBE9plus CTD including fluorometer, oxygen sensor, PAR sensor, transmissometer, altimeter and rosette of 24 x 12 l Niskin bottles |
| Meteorology | |
| Routine standard measurements | Quantity: activity duration in days = 13 Description: BAS oceanlogger, temperature, pressure, wind speed and direction |
| Geology and geophysics | |
| Core - soft bottom | Quantity: number of stations = 13 Description: Box cores |
| Core - soft bottom | Quantity: number of stations = 26 Description: Gravity cores up to 9 m in length |
| Single-beam echosounding | Quantity: activity duration in days = 13 Description: Kongsberg EA600, water depth and reflection amplitude |
| Multi-beam echosounding | Quantity: activity duration in days = 13 Description: Kongsberg EM122, water depth and backscatter amplitude |
| Magnetic measurements | Quantity: activity duration in days = 13 Description: BAS shipboard three-component magnetometer, x-y-z components of field |
| Other geological/geophysical measurements | Quantity: activity duration in days = 12 Description: TOPAS PS018 parametric sub-bottom profiler, reflection amplitude and travel time |
| Moorings, landers, buoys | |
| Physical oceanography | |
| Other physical oceanographic measurements | 60° 49' 29" S 54° 43' 19" W — Bottom Pressure Recorder, Drake Passage South Deep, recovered from 1920 m. Pressure + temperature. |
| Other physical oceanographic measurements | 56° 2' 5" S 57° 57' 56" W — Bottom Pressure Recorder, Drake Passage North Deep, recovered from 2003 m. Pressure + temperature. |
| Other physical oceanographic measurements | 64° 14' 34" S 65° 28' 40" W — Bottom Pressure Recorder, FETCH trial, deployed to 587 m and recovered 6 days later. Pressure + temperature. |
| Other physical oceanographic measurements | 54° 58' 48" S 57° 59' 18" W — Bottom Pressure Recorder, Drake Passage North, deployed to 1097 m. Pressure + temperature + CTD (SBE37) |
| Other physical oceanographic measurements | 60° 51' 5" S 54° 43' 45" W — Bottom Pressure Recorder, Drake Passage South, deployed to 1080 m. Pressure + temperature + CTD (SBE37). |
| Other physical oceanographic measurements | 55° 2' 20" S 57° 56' 56" W — Bottom Pressure Recorder, Drake Passage North Deep, deployed to 2031 m. Pressure (DQ + SBE53) + temperature + CTD (SBE37) + sound speed (MIDAS SVP). |