BODC Cruise Metadata Report for RRS James Clark Ross (74JC) cruise JR20111228 (JR260B)
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 JR20111228 (JR260B) |
|---|---|
| Short name | JR20111228 (JR260B) |
| Objectives and Narrative |
JR260b was a 19 day Western Core Box cruise to determine the distribution and biomass of krill just off South Georgia. In addition there was an AFI-CGS "Unravelling the origin of the isotope anomaly in atmospheric N2O" led by Jan Kaiser (UEA) and a collaborator from the AWI investigating the effects of hypoxia on krill.
Since 1981 BAS have undertaken cruises to determine krill biomass as part of the ongoing assessment of the status of the marine ecosystem in the region of South Georgia. This unique time series, known as the "Western Core Box" is part of the Ecosystem Programme contribution to BAS' national capability. It is comprised of an acoustic grid survey of 8 transects each of 80 km in length, together with associated net and oceanographic sampling and the calibration of the acoustic instrumentation. In addition to the acoustic survey, which covers a wide area but has limited temporal coverage, there are three moorings (one in the Western Core Box and one south and one north of South Georgia) to provide a temporal context. These moorings had been recovered during an earlier cruise (JR260a) at the beginning of the season, a key task of this cruise was to re-deploy these mooring. Finally a series of stratified net samples around the WCB mooring was required to validate the acoustic backscatter series collected by the ADCP and WCP on the WCB mooring. These were undertaken over a 24 hour period to provide information on diurnal variation. |
| Ship | RRS James Clark Ross |
| Departure Port | Stanley, Falkland Islands (Malvinas) |
| Departure Date | 2011-12-28 |
| Arrival Port | Stanley, Falkland Islands (Malvinas) |
| Arrival Date | 2012-01-16 |
| Principal Scientist(s) | Sophie Fielding (British Antarctic Survey) |
| Responsible Organisation | British Antarctic Survey |
| Associated Project(s) | |
| IHB Sea Areas Visited | South West Atlantic Ocean (limit 20W) |
| Marsden Squares Visited | 483/484/485 |
| Work Area Description | Scotia Sea. Atlantic Sector of the Southern Ocean. |
| 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 | Description: XBT |
| CTD stations | Description: CTD |
| Surface measurements underway (T,S) | Description: ADCP |
| Water bottle stations | Description: CTD Bottle Samples |
| Chemical oceanography | |
| Other dissolved gases | Description: N20 Sampling |
| Biology and fisheries | |
| Crustaceans | Description: RMT8 - krill length measurements and photography |
| Crustaceans | Description: RMT8 - Krill catch |
| Crustaceans | Description: RMT8 - krill frozen. Further DNA analysis |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Description: Underway - ships non toxic pumped sea water supply |
| Zooplankton | Description: Stable isotope analysis |
| Meteorology | |
| Routine standard measurements | Description: Onboard ships meteorological |
| Geology and geophysics | |
| Bottom photography | Description: Underwater krill swarm photographs |
| Single-beam echosounding | Description: EA600 Single Beam |
| Single-beam echosounding | Description: EK60 Biological echosounder 38, 120, 200 kHz |
Cruise Inventory Mooring/Buoy Operations
| Latitude | Longitude | Data type | Description |
|---|---|---|---|
| 53° 48' S | 37° 56' W | CTD stations | Water depth - 300m. Sonar bell (10m above release), Main buoy - (~240m) - ASL WCP, SBE CTD, RDI ADCP |
| 55° 12' S | 41° 6' W | CTD stations | Water depth - 3200m. Aquadoop current meter (1500m), Sediment Trap (1500m), Main Buoy - SBE CTD, RDI ADCP (near surface) |
| 52° 48' S | 40° 6' W | CTD stations | Water depth - 3700m. Aquadoop current meter (2000m), Sediment Trap (2000m), Main Buoy - SBE CTD, RDI ADCP (near surface) |
| 55° 12' S | 41° 6' W | Current meters | Water depth - 3200m. Aquadoop current meter (1500m), Sediment Trap (1500m), Main Buoy - SBE CTD, RDI ADCP (near surface) |
| 52° 48' S | 40° 6' W | Current meters | Water depth - 3700m. Aquadoop current meter (2000m), Sediment Trap (2000m), Main Buoy - SBE CTD, RDI ADCP (near surface) |
| 53° 48' S | 37° 56' W | Current profiler (eg ADCP) | Water depth - 300m. Sonar bell (10m above release), Main buoy - (~240m) - ASL WCP, SBE CTD, RDI ADCP |
| 55° 12' S | 41° 6' W | Current profiler (eg ADCP) | Water depth - 3200m. Aquadoop current meter (1500m), Sediment Trap (1500m), Main Buoy - SBE CTD, RDI ADCP (near surface) |
| 52° 48' S | 40° 6' W | Current profiler (eg ADCP) | Water depth - 3700m. Aquadoop current meter (2000m), Sediment Trap (2000m), Main Buoy - SBE CTD, RDI ADCP (near surface) |
| 53° 48' S | 37° 56' W | Long/short range side scan sonar | Water depth - 300m. Sonar bell (10m above release), Main buoy - (~240m) - ASL WCP, SBE CTD, RDI ADCP |
| 55° 12' S | 41° 6' W | Sediment traps | Water depth - 3200m. Aquadoop current meter (1500m), Sediment Trap (1500m), Main Buoy - SBE CTD, RDI ADCP (near surface) |
| 52° 48' S | 40° 6' W | Sediment traps | Water depth - 3700m. Aquadoop current meter (2000m), Sediment Trap (2000m), Main Buoy - SBE CTD, RDI ADCP (near surface) |
| 53° 48' S | 37° 56' W | Single-beam echosounding | Water depth - 300m. Sonar bell (10m above release), Main buoy - (~240m) - ASL WCP, SBE CTD, RDI ADCP |
Summary of BODC Data Holdings for the Cruise
National Oceanographic Database
Summary
| # Series | Instrument Description | Parameters |
|---|---|---|
| 36 | Bathythermograph (MBT/XBT) |
Reference numbers Sound velocity and travel time in the water column Temperature of the water column Vertical spatial coordinates |
| 14 | 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 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 |
Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)
Full List
| BODC Reference | Instrument Description | Date/Time | Location | |
|---|---|---|---|---|
| 1172943 | Bathythermograph (MBT/XBT) | 2011-12-30 19:38Z | 52° 39' S, 42° 44' W | Click for more |
| 1172955 | Bathythermograph (MBT/XBT) | 2012-01-02 08:55Z | 54° 3' S, 39° 23' W | Click for more |
| 1172967 | Bathythermograph (MBT/XBT) | 2012-01-02 09:01Z | 54° 3' S, 39° 23' W | Click for more |
| 1172979 | Bathythermograph (MBT/XBT) | 2012-01-02 10:08Z | 53° 52' S, 39° 26' W | Click for more |
| 1172980 | Bathythermograph (MBT/XBT) | 2012-01-02 10:10Z | 53° 52' S, 39° 26' W | Click for more |
| 1172992 | Bathythermograph (MBT/XBT) | 2012-01-02 11:19Z | 53° 42' S, 39° 30' W | Click for more |
| 1173006 | Bathythermograph (MBT/XBT) | 2012-01-02 11:22Z | 53° 42' S, 39° 30' W | Click for more |
| 1173018 | Bathythermograph (MBT/XBT) | 2012-01-02 12:31Z | 53° 31' S, 39° 33' W | Click for more |
| 1173031 | Bathythermograph (MBT/XBT) | 2012-01-02 13:41Z | 53° 21' S, 39° 36' W | Click for more |
| 1173043 | Bathythermograph (MBT/XBT) | 2012-01-03 09:01Z | 53° 17' S, 39° 2' W | Click for more |
| 1173055 | Bathythermograph (MBT/XBT) | 2012-01-03 09:02Z | 53° 17' S, 39° 2' W | Click for more |
| 1173067 | Bathythermograph (MBT/XBT) | 2012-01-03 09:03Z | 53° 17' S, 39° 2' W | Click for more |
| 1173079 | Bathythermograph (MBT/XBT) | 2012-01-03 10:10Z | 53° 27' S, 38° 58' W | Click for more |
| 1173080 | Bathythermograph (MBT/XBT) | 2012-01-03 10:11Z | 53° 27' S, 38° 58' W | Click for more |
| 1173092 | Bathythermograph (MBT/XBT) | 2012-01-03 10:12Z | 53° 27' S, 38° 58' W | Click for more |
| 1173111 | Bathythermograph (MBT/XBT) | 2012-01-03 10:12Z | 53° 28' S, 38° 58' W | Click for more |
| 1173123 | Bathythermograph (MBT/XBT) | 2012-01-03 11:20Z | 53° 38' S, 38° 55' W | Click for more |
| 1173135 | Bathythermograph (MBT/XBT) | 2012-01-03 11:21Z | 53° 38' S, 38° 55' W | Click for more |
| 1173147 | Bathythermograph (MBT/XBT) | 2012-01-03 12:32Z | 53° 49' S, 38° 52' W | Click for more |
| 1173159 | Bathythermograph (MBT/XBT) | 2012-01-03 13:41Z | 53° 59' S, 38° 49' W | Click for more |
| 1173160 | Bathythermograph (MBT/XBT) | 2012-01-04 09:01Z | 53° 55' S, 38° 13' W | Click for more |
| 1173172 | Bathythermograph (MBT/XBT) | 2012-01-04 10:07Z | 53° 45' S, 38° 16' W | Click for more |
| 1173184 | Bathythermograph (MBT/XBT) | 2012-01-04 11:16Z | 53° 34' S, 38° 19' W | Click for more |
| 1173196 | Bathythermograph (MBT/XBT) | 2012-01-04 12:27Z | 53° 24' S, 38° 23' W | Click for more |
| 1173203 | Bathythermograph (MBT/XBT) | 2012-01-04 13:37Z | 53° 13' S, 38° 27' W | Click for more |
| 1173215 | Bathythermograph (MBT/XBT) | 2012-01-05 09:01Z | 53° 9' S, 37° 57' W | Click for more |
| 1173227 | Bathythermograph (MBT/XBT) | 2012-01-05 10:08Z | 53° 20' S, 37° 54' W | Click for more |
| 1173239 | Bathythermograph (MBT/XBT) | 2012-01-05 11:20Z | 53° 31' S, 37° 51' W | Click for more |
| 1173240 | Bathythermograph (MBT/XBT) | 2012-01-05 12:30Z | 53° 41' S, 37° 47' W | Click for more |
| 1173252 | Bathythermograph (MBT/XBT) | 2012-01-05 12:34Z | 53° 42' S, 37° 47' W | Click for more |
| 1173264 | Bathythermograph (MBT/XBT) | 2012-01-05 13:41Z | 53° 52' S, 37° 43' W | Click for more |
| 1173276 | Bathythermograph (MBT/XBT) | 2012-01-05 14:18Z | 53° 51' S, 37° 35' W | Click for more |
| 1173288 | Bathythermograph (MBT/XBT) | 2012-01-05 15:28Z | 53° 40' S, 37° 39' W | Click for more |
| 1173307 | Bathythermograph (MBT/XBT) | 2012-01-05 16:37Z | 53° 30' S, 37° 42' W | Click for more |
| 1173319 | Bathythermograph (MBT/XBT) | 2012-01-05 17:47Z | 53° 19' S, 37° 46' W | Click for more |
| 1173320 | Bathythermograph (MBT/XBT) | 2012-01-05 18:57Z | 53° 9' S, 37° 49' W | Click for more |
| 1745847 | CTD/STD cast | 2011-12-30 13:50Z | 52° 37' S, 42° 49' W | Click for more |
| 1745859 | CTD/STD cast | 2011-12-31 08:28Z | 52° 48' S, 40° 6' W | Click for more |
| 1745860 | CTD/STD cast | 2012-01-01 12:25Z | 53° 48' S, 37° 55' W | Click for more |
| 1745872 | CTD/STD cast | 2012-01-02 20:32Z | 53° 51' S, 39° 8' W | Click for more |
| 1745884 | CTD/STD cast | 2012-01-03 05:33Z | 53° 29' S, 39° 15' W | Click for more |
| 1745896 | CTD/STD cast | 2012-01-03 20:21Z | 53° 25' S, 38° 41' W | Click for more |
| 1745903 | CTD/STD cast | 2012-01-04 06:02Z | 53° 47' S, 38° 34' W | Click for more |
| 1745915 | CTD/STD cast | 2012-01-04 20:20Z | 53° 42' S, 37° 58' W | Click for more |
| 1745927 | CTD/STD cast | 2012-01-05 05:38Z | 53° 21' S, 38° 4' W | Click for more |
| 1745939 | CTD/STD cast | 2012-01-07 12:34Z | 54° 9' S, 36° 41' W | Click for more |
| 1745940 | CTD/STD cast | 2012-01-09 19:39Z | 53° 48' S, 37° 56' W | Click for more |
| 1745952 | CTD/STD cast | 2012-01-10 14:32Z | 55° 12' S, 41° 7' W | Click for more |
| 1745964 | CTD/STD cast | 2012-01-12 02:19Z | 53° 52' S, 37° 13' W | Click for more |
| 1745976 | CTD/STD cast | 2012-01-12 02:48Z | 53° 52' S, 37° 13' W | Click for more |
Project Database
No data currently held for this cruise in the BODC Project Database
