BODC Cruise Metadata Report for RRS James Clark Ross (74JC) cruise JR20131221 (JR284, JR292)
Introduction
This report collates information from the BODC cruise inventory and oceanographic databases. It presents
- Cruise Inventory Information
- A summary of BODC data holdings for the cruise from the
- References - including cruise tracks and cruise reports
Cruise Inventory Information
| Long name | RRS James Clark Ross (74JC) cruise JR20131221 (JR284, JR292) |
|---|---|
| Short name | JR20131221 (JR284, JR292) |
| Objectives and Narrative |
JR284: The primary aim of the cruise was to improve constraints on the deglacial history of the Antarctic Peninsula Ice Sheet. The data and samples collected will also be used in three Collaborative Gearing Scheme projects that are related to the primary cruise aim. These are:
- Constraints on ice-stream behaviour during retreat and deglacial chronology from geomorphology and seafloor sediments. - Spatial variations in grounding-line proximal facies. - Testing a refugia hypothesis on the Antarctic Peninsula continental shelf, with implications for biology and past ice-sheet extent. The cruise dovetailed with BAS logisitic activities, starting at Rothera Station after the JCR had made the first call of the season there. The data and samples collected on cruise JR284 will provide new constraints on the dynamic behaviour of the expanded ice sheet during the Last Glacial Maximum and on the subsequent history of glacial retreat. 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. |
| Ship | RRS James Clark Ross |
| Departure Port | Rothera, Antarctica |
| Departure Date | 2013-12-21 |
| Arrival Port | Punta Arenas, Chile |
| Arrival Date | 2014-01-01 |
| Principal Scientist(s) | Miguel Angel Morales Maqueda (National Oceanography Centre, Liverpool), Robert D Larter (British Antarctic Survey) |
| Responsible Organisation | British Antarctic Survey |
| Associated Project(s) | ACCLAIM |
| IHB Sea Areas Visited | Southern Ocean |
| Marsden Squares Visited | 485/520/521/522 |
| Work Area Description | Weddell Sea |
| Unable to lookup cruise bounds at this time | |
| Work Area Bounding Polygon | |
| Southern Limit | unknown |
| Northern Limit | unknown |
| Western Limit | unknown |
| Eastern Limit | unknown |
Cruise Inventory Datasets
| Physical oceanography | |
|---|---|
| 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 |
| Surface measurements underway (T,S) |
Quantity:
activity duration in days =
13
Description: BAS oceanlogger, temperature, conductivity |
| 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 |
| Magnetic measurements |
Quantity:
activity duration in days =
13
Description: BAS shipboard three-component magnetometer, x-y-z components of field |
| Multi-beam echosounding |
Quantity:
activity duration in days =
13
Description: Kongsberg EM122, water depth and backscatter amplitude |
| Other geological/geophysical measurements |
Quantity:
activity duration in days =
12
Description: TOPAS PS018 parametric sub-bottom profiler, reflection amplitude and travel time |
| Single-beam echosounding |
Quantity:
activity duration in days =
13
Description: Kongsberg EA600, water depth and reflection amplitude |
Cruise Inventory Mooring/Buoy Operations
| Latitude | Longitude | Data type | Description |
|---|---|---|---|
| 55° 2' S | 57° 57' W | Other physical oceanographic measurements | Bottom Pressure Recorder, Drake Passage North Deep, deployed to 2031 m. Pressure (DQ + SBE53) + temperature + CTD (SBE37) + sound speed (MIDAS SVP). |
| 56° 2' S | 57° 58' W | Other physical oceanographic measurements | Bottom Pressure Recorder, Drake Passage North Deep, recovered from 2003 m. Pressure + temperature. |
| 54° 58' S | 57° 59' W | Other physical oceanographic measurements | Bottom Pressure Recorder, Drake Passage North, deployed to 1097 m. Pressure + temperature + CTD (SBE37) |
| 60° 49' S | 54° 43' W | Other physical oceanographic measurements | Bottom Pressure Recorder, Drake Passage South Deep, recovered from 1920 m. Pressure + temperature. |
| 60° 51' S | 54° 43' W | Other physical oceanographic measurements | Bottom Pressure Recorder, Drake Passage South, deployed to 1080 m. Pressure + temperature + CTD (SBE37). |
| 64° 14' S | 65° 28' W | Other physical oceanographic measurements | Bottom Pressure Recorder, FETCH trial, deployed to 587 m and recovered 6 days later. Pressure + temperature. |
Summary of BODC Data Holdings for the Cruise
National Oceanographic Database
No data currently held for this cruise in the BODC National Oceanographic Database
Project Database
No data currently held for this cruise in the BODC Project Database
