BODC Cruise Metadata Report for RRS James Clark Ross (74JC) cruise JR20110128 (JR244)
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 JR20110128 (JR244) |
|---|---|
| Short name | JR20110128 (JR244) |
| Objectives and Narrative |
On cruise JR244 a programme of marine geological and geophysical work was carried out around the South Orkney Islands and in the southern Weddell Sea for two BAS programmes. In addition, three oceanographic moorings were recovered from the outer continental shelf and slope in the southern Weddell Sea for a University of Bergen-BAS collaborative project. The cruise was combined with BAS logistic activities, which involved uplifting 27 people from Halley Station and a field party of four people from James Ross Island. In view of the long passage necessary to reach the southern Weddell Sea, it was clear that many days of ship time could be saved through combining different activities within a single expedition. During the cruise RRS James Clark Ross ventured further south the ever before, reaching the Filchner Ice Shelf front and carrying out significant research work in that area.
The data and samples collected on the cruise will provide new constraints on the maximum extent of glacial ice around the South Orkney Islands and in the southern Weddell Sea during the late Quaternary, the dynamic behaviour of the expanded ice cap and ice sheet, the history of glacial retreat in these areas since the last major advance, and variations in palaeoclimatic and palaeoceanographic conditions in the same areas. Data from the oceanographic moorings that were recovered extend a long-term dataset that has monitored an important input to Antarctic Bottom Water production over a period of more than 30 years. |
| Ship | RRS James Clark Ross |
| Departure Port | Stanley, Falkland Islands (Malvinas) |
| Departure Date | 2011-01-28 |
| Arrival Port | Stanley, Falkland Islands (Malvinas) |
| Arrival Date | 2011-03-16 |
| Principal Scientist(s) | Robert D Larter (British Antarctic Survey) |
| Responsible Organisation | British Antarctic Survey |
| Associated Project(s) | Polar Science for Planet Earth |
| IHB Sea Areas Visited | Southern Ocean |
| Marsden Squares Visited | 520/521/554/555/556 |
| Work Area Description | Scotia Sea, 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 | |
|---|---|
| CTD stations |
Quantity:
number of stations =
20
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 =
48
Description: BAS oceanlogger, temperature, conductivity |
| Biology and fisheries | |
| Acoustic reflection on marine organisms. |
Quantity:
activity duration in days =
2
Description: Kongsberg EK60, backscatter amplitudes at 38, 120 and 200 kHz |
| Biochemical measurements (eg lipids, amino acids) |
Quantity:
number of samples =
17
Description: Water samples (underway and CTD) were collected for organic geochemical, phytoplankton and zooplankton studies. |
| Phytoplankton |
Quantity:
number of samples =
17
Description: Water samples (underway and CTD) were collected for organic geochemical, phytoplankton and zooplankton studies. |
| Zooplankton |
Quantity:
number of samples =
17
Description: Water samples (underway and CTD) were collected for organic geochemical, phytoplankton and zooplankton studies. |
| Meteorology | |
| Routine standard measurements |
Quantity:
activity duration in days =
48
Description: BAS oceanlogger, temperature, pressure, wind speed and direction |
| Geology and geophysics | |
| Core - soft bottom |
Quantity:
number of stations =
73
Description: Gravity cores up to 12 m in length |
| Core - soft bottom |
Quantity:
number of stations =
41
Description: Box cores |
| Magnetic measurements |
Quantity:
activity duration in days =
6
Description: SeaSpy proton precession magnetometer, total field |
| Magnetic measurements |
Quantity:
activity duration in days =
35
Description: BAS shipboard three-component magnetometer, x-y-z components of field |
| Multi-beam echosounding |
Quantity:
activity duration in days =
46
Description: Kongsberg EM120, water depth and backscatter amplitude |
| Other geological/geophysical measurements |
Quantity:
activity duration in days =
46
Description: TOPAS PS018 parametric sub-bottom profiler, reflection amplitude and travel time |
| Single channel seismic reflection |
Quantity:
track kilometres =
78
Description: Seismic reflection profiles collected using a single GI gun (45/105 in3) and a hydrophone streamer containing 16 x 6.25 m channels. |
| Single-beam echosounding |
Quantity:
activity duration in days =
46
Description: Kongsberg EA600, water depth and reflection amplitude |
Cruise Inventory Mooring/Buoy Operations
| Latitude | Longitude | Data type | Description |
|---|---|---|---|
| 74° 38' S | 33° 30' W | CTD stations | Mooring recovered from S2 site. AADI RCM-7 current meters and Microcat CTDs at 25, 100 and 150 m.a.b., in water depth of 612 m |
| 74° 38' S | 33° 30' W | Current meters | Mooring recovered from S2 site. AADI RCM-7 current meters and Microcat CTDs at 25, 100 and 150 m.a.b., in water depth of 612 m |
| 74° 21' S | 36° 1' W | Current meters | Mooring recovered from WIF2 site. RCM-7 current meters at 25 and 90 m.a.b., SBE 37/39 instruments for temperature, conductivity and pressure measurements at 35, 50, 75, 100, 150, 200, 250 and 300 m.a.b., downward-looking RDI 300 kHz ADCP at 210 m.a.b., and upward looking RDI Longranger ADCP at 300 m.a.b., in water depth of 1465 m |
| 74° 13' S | 35° 55' W | Current meters | Mooring recovered from WIF3 site. Seaguard RCM current meter at 25 m.a.b., RCM-7 current meter at 90 m.a.b., SBE 37/39 instruments for temperature, conductivity and pressure measurements at 30, 50, 75, 100, 150, 180 and 300 m.a.b., upward-looking AADI ADCP 600 at 250 m.a.b., and downward-looking RDI 300 kHz ADCP at 300 m.a.b., in water depth of 1879 m |
Summary of BODC Data Holdings for the Cruise
National Oceanographic Database
Summary
| # Series | Instrument Description | Parameters |
|---|---|---|
| 20 | CTD/STD cast |
Chlorophyll pigment concentrations in water bodies Density of the water column Dissolved oxygen parameters in the water column Electrical conductivity of the water column Raw oxygen sensor output Reference numbers Salinity of the water column Temperature of the water column Transmittance and attenuance of the water column Vertical spatial coordinates Visible waveband radiance and irradiance measurements in the water column |
| 1 | Meteorological data logger |
Air pressure Air temperature Atmospheric humidity Date and time Horizontal spatial co-ordinates Solar Radiation Visible waveband radiance and irradiance measurements in the atmosphere Wind strength and direction |
| 1 | Multi-beam echosounder |
Bathymetry and Elevation Date and time Horizontal platform movement Horizontal spatial co-ordinates Platform or instrument orientation |
| 1 | Multiple instrument types |
Chlorophyll pigment concentrations in water bodies Date and time Electrical conductivity of the water column Horizontal spatial co-ordinates Metadata parameters Salinity of the water column Sound velocity and travel time in the water column Temperature of the water column |
Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)
Full List
| BODC Reference | Instrument Description | Date/Time | Location | |
|---|---|---|---|---|
| 1792625 | CTD/STD cast | 2011-01-31 02:04Z | 60° 46' S, 51° 0' W | Click for more |
| 1792637 | CTD/STD cast | 2011-02-01 16:07Z | 60° 32' S, 46° 31' W | Click for more |
| 1792649 | CTD/STD cast | 2011-02-07 14:28Z | 70° 32' S, 24° 19' W | Click for more |
| 1792650 | CTD/STD cast | 2011-02-08 03:03Z | 70° 54' S, 26° 7' W | Click for more |
| 1792662 | CTD/STD cast | 2011-02-10 03:43Z | 71° 47' S, 29° 36' W | Click for more |
| 1792674 | CTD/STD cast | 2011-02-11 16:36Z | 74° 31' S, 31° 19' W | Click for more |
| 1792686 | CTD/STD cast | 2011-02-14 15:01Z | 74° 12' S, 35° 57' W | Click for more |
| 1792698 | CTD/STD cast | 2011-02-17 20:22Z | 74° 6' S, 32° 34' W | Click for more |
| 1792705 | CTD/STD cast | 2011-02-19 19:54Z | 77° 16' S, 33° 27' W | Click for more |
| 1792717 | CTD/STD cast | 2011-02-20 20:37Z | 78° 9' S, 43° 39' W | Click for more |
| 1792729 | CTD/STD cast | 2011-02-21 05:49Z | 77° 49' S, 42° 4' W | Click for more |
| 1792730 | CTD/STD cast | 2011-02-21 09:58Z | 77° 43' S, 42° 10' W | Click for more |
| 1792742 | CTD/STD cast | 2011-02-21 22:25Z | 78° 0' S, 42° 30' W | Click for more |
| 1792754 | CTD/STD cast | 2011-02-23 20:39Z | 77° 36' S, 38° 37' W | Click for more |
| 1792766 | CTD/STD cast | 2011-02-24 00:47Z | 77° 46' S, 39° 22' W | Click for more |
| 1792778 | CTD/STD cast | 2011-02-24 04:18Z | 77° 55' S, 39° 41' W | Click for more |
| 1792791 | CTD/STD cast | 2011-02-26 21:34Z | 76° 47' S, 30° 34' W | Click for more |
| 1792809 | CTD/STD cast | 2011-02-27 16:22Z | 76° 27' S, 29° 42' W | Click for more |
| 1792810 | CTD/STD cast | 2011-03-01 14:58Z | 76° 3' S, 27° 9' W | Click for more |
| 1792822 | CTD/STD cast | 2011-03-11 23:30Z | 63° 34' S, 57° 17' W | Click for more |
| 1918981 | Multi-beam echosounder | 2011-01-28 11:00:00Z to 2011-03-15 18:10:00Z | From 78° 10' S, 58° 3' W to 51° 39' S, 22° 49' W | Click for more |
| 1918993 | Meteorological data logger | 2011-01-28 11:00:00Z to 2011-03-15 18:10:00Z | From 78° 10' S, 58° 3' W to 51° 39' S, 22° 49' W | Click for more |
| 1919007 | Multiple instrument types | 2011-01-28 11:00:00Z to 2011-03-15 18:10:00Z | From 78° 10' S, 58° 3' W to 51° 39' S, 22° 49' W | Click for more |
Project Database
No data currently held for this cruise in the BODC Project Database
