BODC Cruise Metadata Report for RRS James Clark Ross (74JC) cruise JR15004
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 JR15004 |
|---|---|
| Short name | JR15004 |
| Objectives and Narrative |
South Orkney Ecosystem Studies. The South Orkney Island region is a major focus for the commercial krill fishery. Understanding the relationship between distribution of predators, pelagic resource and the commercial fishery is vital in deriving ecosystem based management plans for the fishery. A main focus of the cruise will be to examine what factors determine the distribution patterns of krill and other pelagic organisms such as mesopelagic fish and zooplankton across a range of time and space scales from the movement of individual krill swarms up to the longer term flux of krill into and out of the hotspots that occur in the canyons on the northern South Orkney shelf.
The work was carried out to analyse spatial and temporal variability at different spatial scales that correspond to the major organisational scales of krill distribution centred on the intermediate scale of major predator -prey - fishery interactions (krill patches, km to 10s km). The work involved coordinated studies from RRS James Clark Ross utilizing underway instrumentation (particularly multi-frequency acoustics), net sampling, water sampling and predator observations. It was augmented by the deployment of autonomous samplers (moorings) for the duration of the cruise. These research vessel activities link with concurrent observations from commercial fishing vessels operating in the region. Activities will also be tightly linked to predator tracking studies being undertaken from key penguin and fur seal colonies in the South Orkney region. BAS scientists on board were joined by scientists from USA, Norway and Portugal. The cruise represents a key deliverable in the UK/Norway Collaborative Research Project 2012-2016 as agreed by the MOU between the governments of UK and Norway. |
| Ship | RRS James Clark Ross |
| Departure Port | Stanley, Falkland Islands (Malvinas) |
| Departure Date | 2016-01-19 |
| Arrival Port | Mare Harbour, Falkland Islands (Malvinas) |
| Arrival Date | 2016-02-21 |
| Principal Scientist(s) | Jonathan L Watkins (British Antarctic Survey) |
| Responsible Organisation | British Antarctic Survey |
| Associated Project(s) | |
| IHB Sea Areas Visited | South West Atlantic Ocean (limit 20W), Southern Ocean |
| Marsden Squares Visited | 484/485/486/520 |
| Work Area Description | Scotia 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 profiles =
45
Description: CTD casts: chlorophyll, temperature, fluorescence, transmissance |
| Current profiler (eg ADCP) |
Quantity:
activity duration in days =
38
Description: Acoustic Doppler Current Profiler measurements 75 kHz surveyor |
| Surface measurements underway (T,S) |
Quantity:
activity duration in days =
38
Description: Underway water system: Oceanlogger data streams (temperature, salinity, chlorophyll) |
| Water bottle stations |
Quantity:
number of samples =
298
Description: CTD bottles fired: eDNA, POM, POC, HBI, Chl, trace metals, contaminants |
| Water bottle stations |
Quantity:
number of profiles =
19
Description: CTD casts on which bottle samples were taken: eDNA, POM, POC, HBI, Chl, trace metals, contaminants |
| Contamination | |
| Contaminants in organisms |
Quantity:
number of hauls =
14
Description: Rectangular Midwater Trawl (RMT8) deployments for krill samples (length-frequency) and fish, zooplankton for sampling (x-rays, contaminants). Targeted hauls. Stratified oblique hauls. 2 nets on each deployment. |
| Contaminants in organisms |
Quantity:
number of hauls =
8
Description: MAMMOTH net deployments with stratified oblique hauls. 8 nets on each deployment. |
| Contaminants in organisms |
Quantity:
number of hauls =
10
Description: Rectangular Midwater Trawl (RMT25) deployments for krill samples (length-frequency) and fish, zooplankton for sampling (x-rays, contaminants). Stratified oblique hauls at stations. 2 nets on each deployment. |
| Biology and fisheries | |
| Acoustic reflection on marine organisms. |
Quantity:
activity duration in days =
38
Description: EK60 multifrequency acoustic backscatter collected at 38, 70, 120 and 200 kHz. Instrument calibrated in Scotia Bay with known reference sphere. Data collected to 1100m. |
| Acoustic reflection on marine organisms. |
Quantity:
number of profiles =
7
Description: WBAT wideband echo sounder. Calibrated in Scotia Bay. Deployed on CTD collecting backscatter data. |
| Acoustic reflection on marine organisms. |
Quantity:
activity duration in days =
8
Description: EK80 echo sounder. Instrument calibrated in Scotia Bay. |
| Acoustic reflection on marine organisms. |
Quantity:
activity duration in days =
38
Description: Acoustic Doppler Current Profiler measurements 75 kHz surveyor |
| Birds |
Quantity:
number of surveys =
7
Description: Predator observations using strip-transect methods for all surveys. |
| Demersal fish |
Quantity:
number of hauls =
8
Description: MAMMOTH net deployments with stratified oblique hauls. 8 nets on each deployment. |
| Demersal fish |
Quantity:
number of hauls =
10
Description: Rectangular Midwater Trawl (RMT25) deployments for krill samples (length-frequency) and fish, zooplankton for sampling (x-rays, contaminants). Stratified oblique hauls at stations. 2 nets on each deployment. |
| Demersal fish |
Quantity:
number of hauls =
14
Description: Rectangular Midwater Trawl (RMT8) deployments for krill samples (length-frequency) and fish, zooplankton for sampling (x-rays, contaminants). Targeted hauls. Stratified oblique hauls. 2 nets on each deployment. |
| Mammals and reptiles |
Quantity:
number of surveys =
7
Description: Predator observations using strip-transect methods for all surveys. |
| Particulate organic matter (inc POC, PON) |
Quantity:
number of samples =
5
Description: Underway water system: HBI, POM |
| Pelagic fish |
Quantity:
number of hauls =
8
Description: MAMMOTH net deployments with stratified oblique hauls. 8 nets on each deployment. |
| Pelagic fish |
Quantity:
number of hauls =
14
Description: Rectangular Midwater Trawl (RMT8) deployments for krill samples (length-frequency) and fish, zooplankton for sampling (x-rays, contaminants). Targeted hauls. Stratified oblique hauls. 2 nets on each deployment. |
| Pelagic fish |
Quantity:
number of hauls =
10
Description: Rectangular Midwater Trawl (RMT25) deployments for krill samples (length-frequency) and fish, zooplankton for sampling (x-rays, contaminants). Stratified oblique hauls at stations. 2 nets on each deployment. |
| Phytoplankton pigs (eg chlorophyll, fluorescence) |
Quantity:
activity duration in days =
38
Description: Underway water system: Oceanlogger data streams (temperature, salinity, chlorophyll) |
| Zooplankton |
Quantity:
number of hauls =
10
Description: Rectangular Midwater Trawl (RMT25) deployments for krill samples (length-frequency) and fish, zooplankton for sampling (x-rays, contaminants). Stratified oblique hauls at stations. 2 nets on each deployment. |
| Zooplankton |
Quantity:
number of deployments =
9
Description: Stereo camera system with flash and on-board computer. |
| Zooplankton |
Quantity:
number of hauls =
14
Description: Rectangular Midwater Trawl (RMT8) deployments for krill samples (length-frequency) and fish, zooplankton for sampling (x-rays, contaminants). Targeted hauls. Stratified oblique hauls. 2 nets on each deployment. |
| Zooplankton |
Quantity:
number of hauls =
8
Description: MAMMOTH net deployments with stratified oblique hauls. 8 nets on each deployment. |
| Geology and geophysics | |
| Bottom photography |
Quantity:
number of profiles =
4
Description: Shallow Underwater Camera System (SUCS) deployed to take images of the sea floor prior to anchoring for acoustic calibration and deployment of moorings. |
| Multi-beam echosounding |
Quantity:
activity duration in days =
15
Description: EM122 multi-beam swath bathymetry |
| Single-beam echosounding |
Quantity:
activity duration in days =
38
Description: EA600 single-beam echo sounder used for measuring sea floor depth. |
Cruise Inventory Mooring/Buoy Operations
| Latitude | Longitude | Data type | Description |
|---|---|---|---|
| 60° 33' S | 46° 31' W | Acoustic reflection on marine organisms. | Site - Western Canyon - Deep. Deployed: 30/01/2016; Recovered: 12/02/2016. Instrumentation: Main Buoy (~200m) - RDI ADCP, SBE CTD. Sonovault (~490m). Water depth: 800m |
| 60° 27' S | 46° 31' W | Acoustic reflection on marine organisms. | Site - Western Canyon - Shallow. Deployed: 29/01/2016; Recovered: 12/02/2016. Instrumentation: Main Buoy (~340m) - RDI ADCP, SBE CTD, Kongsberg 120 kHz WBAT. Sonovault (~500m). Water depth: 524m |
| 60° 24' S | 46° 18' W | Acoustic reflection on marine organisms. | Site - northern shelf break. Recovered: 12/02/2016. Instrumentation: NORTEK combined ADCP & 120 kHz sounder (500 m) |
| 60° 33' S | 46° 31' W | Current profiler (eg ADCP) | Site - Western Canyon - Deep. Deployed: 30/01/2016; Recovered: 12/02/2016. Instrumentation: Main Buoy (~200m) - RDI ADCP, SBE CTD. Sonovault (~490m). Water depth: 800m |
| 60° 27' S | 46° 31' W | Current profiler (eg ADCP) | Site - Western Canyon - Shallow. Deployed: 29/01/2016; Recovered: 12/02/2016. Instrumentation: Main Buoy (~340m) - RDI ADCP, SBE CTD, Kongsberg 120 kHz WBAT. Sonovault (~500m). Water depth: 524m |
| 60° 24' S | 46° 18' W | Current profiler (eg ADCP) | Site - northern shelf break. Recovered: 12/02/2016. Instrumentation: NORTEK combined ADCP & 120 kHz sounder (500 m) |
| 60° 33' S | 46° 31' W | Other biological/fisheries measurement | Site - Western Canyon - Deep. Deployed: 30/01/2016; Recovered: 12/02/2016. Instrumentation: Main Buoy (~200m) - RDI ADCP, SBE CTD. Sonovault (~490m). Water depth: 800m |
| 60° 27' S | 46° 31' W | Other biological/fisheries measurement | Site - Western Canyon - Shallow. Deployed: 29/01/2016; Recovered: 12/02/2016. Instrumentation: Main Buoy (~340m) - RDI ADCP, SBE CTD, Kongsberg 120 kHz WBAT. Sonovault (~500m). Water depth: 524m |
| 60° 33' S | 46° 31' W | Subsurface temperature and salinity measurements | Site - Western Canyon - Deep. Deployed: 30/01/2016; Recovered: 12/02/2016. Instrumentation: Main Buoy (~200m) - RDI ADCP, SBE CTD. Sonovault (~490m). Water depth: 800m |
| 60° 27' S | 46° 31' W | Subsurface temperature and salinity measurements | Site - Western Canyon - Shallow. Deployed: 29/01/2016; Recovered: 12/02/2016. Instrumentation: Main Buoy (~340m) - RDI ADCP, SBE CTD, Kongsberg 120 kHz WBAT. Sonovault (~500m). Water depth: 524m |
Summary of BODC Data Holdings for the Cruise
National Oceanographic Database
Summary
| # Series | Instrument Description | Parameters |
|---|---|---|
| 1 | Meteorological data logger |
Air pressure Air temperature Atmospheric humidity Date and time Horizontal spatial co-ordinates Reference numbers Visible waveband radiance and irradiance measurements in the atmosphere Wind strength and direction |
| 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 Reference numbers Salinity of the water column Speed of sound and travel time in the water column Temperature of the water column Transmittance and attenuance of the water column |
| 1 | Single-beam echosounder |
Bathymetry and Elevation Date and time Horizontal platform movement Horizontal spatial co-ordinates Platform or instrument orientation Reference numbers |
Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)
Full List
| BODC Reference | Instrument Description | Date/Time | Location | |
|---|---|---|---|---|
| 2223807 | Single-beam echosounder | 2016-01-19 14:00Z to 2016-02-21 18:00Z | 62° 0' S to 51° 39' S; 58° 29' W to 44° 40' W | Click for more |
| 2223819 | Meteorological data logger | 2016-01-19 14:00Z to 2016-02-21 18:00Z | 62° 0' S to 51° 39' S; 58° 29' W to 44° 40' W | Click for more |
| 2223820 | Multiple instrument types | 2016-01-19 14:00Z to 2016-02-21 18:00Z | 62° 0' S to 51° 39' S; 58° 29' W to 44° 40' W | Click for more |
Project Database
No data currently held for this cruise in the BODC Project Database
