BODC Cruise Metadata Report for RRS James Clark Ross (74JC) cruise JR20120120 (JR255A)
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 JR20120120 (JR255A) |
|---|---|
| Short name | JR20120120 (JR255A) |
| Objectives and Narrative |
The objectives of the GENTOO project are:
(i) to quantify and understand the possible new source of dense water overflow and its variability; to determine the outflow's potential as an early indicator of Antarctic climate change; to assess the impact of changing dense overflows on the locations and strengths of the surface currents and frontal jets; to provide valuable constraints for climate models that describe how changes in ocean circulation feedback on and regulate climate change in polar latitudes. (ii) to determine the krill biomass distribution and (temporal and spatial) variability to the east of the Antarctic Peninsula and its likely impact on the circumpolar krill ecosystem; to assess the impact of any variations in the location of the frontal jets (from objective i) on the krill biomass distribution; to alleviate a severe regional lack of field data on krill, a key species in the Antarctic food web. To achieve the two objectives, our technological deliverable is a critical evaluation of our ability to measure (i) current velocity from a glider and (ii) krill biomass from a glider. The GENTOO fieldwork in the Weddell Sea was accomplished through a SeaGlider campaign in early 2012. A glider deployment cruise (JR255A) was the primary data gathering exercise; as well as deploying three SeaGliders, a hydrographic survey was undertaken together with nets and underway biological, chemical and physical measurements. The recovery of the three gliders was to have taken place on the recovery cruise. |
| Ship | RRS James Clark Ross |
| Departure Port | Stanley, Falkland Islands (Malvinas) |
| Departure Date | 2012-01-20 |
| Arrival Port | Mare Harbour, Falkland Islands (Malvinas) |
| Arrival Date | 2012-02-03 |
| Principal Scientist(s) | Karen J Heywood (University of East Anglia School of Environmental Sciences) |
| Responsible Organisation | University of East Anglia School of Environmental Sciences |
| Associated Project(s) | Gliders: Excellent New Tools for Observing the Ocean (GENTOO) |
| IHB Sea Areas Visited | Southern Ocean |
| Marsden Squares Visited | 485/521 |
| Work Area Description | Drake Passage, Weddell Sea, Powell Basin |
| 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:
activity duration in days =
12
Description: Underway Temperature and Salinity of surface water |
| CTD stations |
Quantity:
number of stations =
41
Description: Vertical profiles of Salinity, Temperature, Dissolved Oxygen, Chlorophyll |
| Current profiler (eg ADCP) |
Quantity:
activity duration in days =
12
Description: ADCP current velocities |
| Surface measurements underway (T,S) |
Quantity:
activity duration in days =
12
Description: Underway Temperature and Salinity of surface water |
| Chemical oceanography | |
| Isotopes |
Quantity:
number of stations =
9
Description: Nitrous oxide isotopes |
| Biology and fisheries | |
| Acoustic reflection on marine organisms. |
Quantity:
activity duration in days =
12
Description: EK60 backscatter data |
| Crustaceans |
Quantity:
number of hauls =
5
Description: Krill sample catch |
| Primary productivity |
Quantity:
number of stations =
37
Description: Chlorophyll and phytoplankton data |
Cruise Inventory Mooring/Buoy Operations
| Latitude | Longitude | Data type | Description |
|---|---|---|---|
| 63° 31' S | 51° 7' W | Neutrally buoyant floats | Argo float measuring Temperature and Salinity |
| 63° 1' S | 51° 30' W | Neutrally buoyant floats | Argo float measuring Temperature and Salinity |
| 63° 31' S | 51° 7' W | Neutrally buoyant floats | Argo float measuring Temperature and Salinity |
| 63° 22' S | 52° 58' W | Subsurface temperature and salinity measurements | Seaglider 522 deployment, measuring Chlorophyll fluroescence, Oxygen, Temperature, Salinity |
| 63° 22' S | 52° 58' W | Subsurface temperature and salinity measurements | Seaglider 539 depoyment measuring dissolved oxygen, Temperature, Salinity, chlorophyll fluorescence |
| 61° 36' S | 48° 25' W | Subsurface temperature and salinity measurements | Seaglider 546, measuring Temperature, Salinity |
Summary of BODC Data Holdings for the Cruise
National Oceanographic Database
Summary
| # Series | Instrument Description | Parameters |
|---|---|---|
| 25 | Bottle station |
Particulate total and organic carbon concentrations in the water column Particulate total and organic nitrogen concentrations in the water column Quality control flags Reference numbers Vertical spatial coordinates |
| 41 | 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 |
| 1 | GPS positioning system |
Date and time Horizontal platform movement Horizontal spatial co-ordinates Platform or instrument orientation Reference numbers |
| 1 | Meteorological data logger |
Air pressure Air temperature Atmospheric humidity Date and time Horizontal spatial co-ordinates Reference numbers Solar Radiation 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 Sound velocity and travel time in the water column Temperature of the water column |
| 1 | Pumped water sample |
Date and time Horizontal spatial co-ordinates Particulate total and organic carbon concentrations in the water column Particulate total and organic nitrogen concentrations 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 | |
|---|---|---|---|---|
| 1893802 | CTD/STD cast | 2012-01-23 20:09Z | 63° 22' S, 52° 58' W | Click for more |
| 1893814 | CTD/STD cast | 2012-01-23 22:43Z | 63° 25' S, 52° 33' W | Click for more |
| 1893826 | CTD/STD cast | 2012-01-24 00:47Z | 63° 28' S, 52° 18' W | Click for more |
| 1893838 | CTD/STD cast | 2012-01-24 04:23Z | 63° 29' S, 52° 7' W | Click for more |
| 1893851 | CTD/STD cast | 2012-01-24 06:47Z | 63° 31' S, 51° 56' W | Click for more |
| 1893863 | CTD/STD cast | 2012-01-24 09:00Z | 63° 34' S, 51° 42' W | Click for more |
| 1893875 | CTD/STD cast | 2012-01-24 11:58Z | 63° 32' S, 51° 33' W | Click for more |
| 1893887 | CTD/STD cast | 2012-01-24 15:11Z | 63° 31' S, 51° 7' W | Click for more |
| 1893899 | CTD/STD cast | 2012-01-25 00:27Z | 63° 22' S, 52° 48' W | Click for more |
| 1893906 | CTD/STD cast | 2012-01-25 04:56Z | 63° 20' S, 53° 0' W | Click for more |
| 1893918 | CTD/STD cast | 2012-01-25 06:54Z | 63° 16' S, 53° 19' W | Click for more |
| 1893931 | CTD/STD cast | 2012-01-25 09:15Z | 63° 10' S, 53° 42' W | Click for more |
| 1893943 | CTD/STD cast | 2012-01-25 11:01Z | 63° 9' S, 54° 4' W | Click for more |
| 1893955 | CTD/STD cast | 2012-01-25 13:53Z | 63° 9' S, 54° 54' W | Click for more |
| 1893967 | CTD/STD cast | 2012-01-25 15:44Z | 63° 9' S, 54° 24' W | Click for more |
| 1893979 | CTD/STD cast | 2012-01-25 23:35Z | 63° 9' S, 51° 45' W | Click for more |
| 1893980 | CTD/STD cast | 2012-01-26 23:04Z | 62° 58' S, 51° 51' W | Click for more |
| 1893992 | CTD/STD cast | 2012-01-27 05:44Z | 62° 48' S, 51° 12' W | Click for more |
| 1894006 | CTD/STD cast | 2012-01-27 09:28Z | 62° 55' S, 51° 21' W | Click for more |
| 1894018 | CTD/STD cast | 2012-01-27 13:29Z | 62° 55' S, 51° 21' W | Click for more |
| 1894031 | CTD/STD cast | 2012-01-27 18:38Z | 62° 57' S, 51° 23' W | Click for more |
| 1894043 | CTD/STD cast | 2012-01-27 21:24Z | 62° 58' S, 51° 24' W | Click for more |
| 1894055 | CTD/STD cast | 2012-01-28 00:56Z | 63° 3' S, 51° 30' W | Click for more |
| 1894067 | CTD/STD cast | 2012-01-28 03:37Z | 63° 4' S, 51° 33' W | Click for more |
| 1894079 | CTD/STD cast | 2012-01-28 06:10Z | 63° 7' S, 51° 35' W | Click for more |
| 1894080 | CTD/STD cast | 2012-01-28 08:17Z | 63° 9' S, 51° 39' W | Click for more |
| 1894092 | CTD/STD cast | 2012-01-28 10:34Z | 63° 10' S, 51° 40' W | Click for more |
| 1894111 | CTD/STD cast | 2012-01-28 12:12Z | 63° 12' S, 51° 42' W | Click for more |
| 1894123 | CTD/STD cast | 2012-01-28 15:34Z | 63° 0' S, 52° 29' W | Click for more |
| 1894135 | CTD/STD cast | 2012-01-28 17:26Z | 63° 0' S, 52° 54' W | Click for more |
| 1894147 | CTD/STD cast | 2012-01-29 00:24Z | 62° 9' S, 53° 58' W | Click for more |
| 1894159 | CTD/STD cast | 2012-01-29 02:11Z | 62° 4' S, 53° 58' W | Click for more |
| 1894160 | CTD/STD cast | 2012-01-29 03:45Z | 61° 59' S, 53° 59' W | Click for more |
| 1894172 | CTD/STD cast | 2012-01-29 05:07Z | 61° 54' S, 54° 0' W | Click for more |
| 1894184 | CTD/STD cast | 2012-01-29 06:23Z | 61° 48' S, 54° 0' W | Click for more |
| 1894196 | CTD/STD cast | 2012-01-29 07:45Z | 61° 43' S, 54° 1' W | Click for more |
| 1894203 | CTD/STD cast | 2012-01-29 09:02Z | 61° 37' S, 54° 1' W | Click for more |
| 1894215 | CTD/STD cast | 2012-01-29 10:25Z | 61° 32' S, 54° 2' W | Click for more |
| 1894227 | CTD/STD cast | 2012-01-29 12:02Z | 61° 27' S, 54° 3' W | Click for more |
| 1894239 | CTD/STD cast | 2012-01-30 08:30Z | 63° 9' S, 51° 45' W | Click for more |
| 1894240 | CTD/STD cast | 2012-01-31 00:22Z | 61° 36' S, 48° 25' W | Click for more |
| 1902106 | GPS positioning system | 2012-01-20 00:00:00Z to 2012-02-03 13:14:00Z | From 51° 41' S, 57° 49' W to 51° 54' S, 58° 26' W | Click for more |
| 1902118 | Meteorological data logger | 2012-01-20 00:00:00Z to 2012-02-03 13:14:00Z | From 51° 41' S, 57° 49' W to 51° 54' S, 58° 26' W | Click for more |
| 1902131 | Multiple instrument types | 2012-01-20 00:00:00Z to 2012-02-03 13:14:00Z | From 51° 41' S, 57° 49' W to 51° 54' S, 58° 26' W | Click for more |
| 2081015 | Bottle station | 2012-01-23 19:52Z | 63° 22' S, 52° 58' W | Click for more |
| 2081027 | Bottle station | 2012-01-23 22:27Z | 63° 25' S, 52° 33' W | Click for more |
| 2081039 | Bottle station | 2012-01-24 00:30Z | 63° 28' S, 52° 18' W | Click for more |
| 2081040 | Bottle station | 2012-01-24 04:01Z | 63° 29' S, 52° 7' W | Click for more |
| 2081052 | Bottle station | 2012-01-24 06:21Z | 63° 31' S, 51° 56' W | Click for more |
| 2081064 | Bottle station | 2012-01-24 08:25Z | 63° 34' S, 51° 42' W | Click for more |
| 2081076 | Bottle station | 2012-01-24 11:06Z | 63° 32' S, 51° 33' W | Click for more |
| 2081088 | Bottle station | 2012-01-24 14:22Z | 63° 31' S, 51° 7' W | Click for more |
| 2081107 | Bottle station | 2012-01-25 04:38Z | 63° 20' S, 53° 0' W | Click for more |
| 2081119 | Bottle station | 2012-01-25 09:02Z | 63° 10' S, 53° 42' W | Click for more |
| 2081120 | Bottle station | 2012-01-25 10:51Z | 63° 9' S, 54° 4' W | Click for more |
| 2081132 | Bottle station | 2012-01-25 15:32Z | 63° 9' S, 54° 24' W | Click for more |
| 2081144 | Bottle station | 2012-01-26 22:13Z | 62° 58' S, 51° 51' W | Click for more |
| 2081156 | Bottle station | 2012-01-27 04:39Z | 62° 48' S, 51° 12' W | Click for more |
| 2081168 | Bottle station | 2012-01-27 08:26Z | 62° 55' S, 51° 21' W | Click for more |
| 2081181 | Bottle station | 2012-01-27 12:26Z | 62° 55' S, 51° 21' W | Click for more |
| 2081193 | Bottle station | 2012-01-27 17:50Z | 62° 57' S, 51° 23' W | Click for more |
| 2081200 | Bottle station | 2012-01-27 20:40Z | 62° 58' S, 51° 24' W | Click for more |
| 2081212 | Bottle station | 2012-01-28 03:00Z | 63° 4' S, 51° 33' W | Click for more |
| 2081224 | Bottle station | 2012-01-28 07:37Z | 63° 9' S, 51° 39' W | Click for more |
| 2081236 | Bottle station | 2012-01-28 11:50Z | 63° 12' S, 51° 42' W | Click for more |
| 2081248 | Bottle station | 2012-01-28 17:14Z | 63° 0' S, 52° 54' W | Click for more |
| 2081261 | Bottle station | 2012-01-29 00:02Z | 62° 9' S, 53° 58' W | Click for more |
| 2081273 | Bottle station | 2012-01-29 06:10Z | 61° 48' S, 54° 0' W | Click for more |
| 2081285 | Bottle station | 2012-01-29 11:39Z | 61° 27' S, 54° 3' W | Click for more |
| 2081297 | Pumped water sample | 2012-01-21 16:59Z to 2012-01-23 17:28Z | 63° 22' S to 55° 51' S; 55° 55' W to 52° 7' W | Click for more |
Project Database
| # Events | Gear Type | Parameters Held |
|---|---|---|
| 9 | Sample taken from ship's non-toxic supply |
Particulate total and organic nitrogen concentrations in the water column
Particulate total and organic carbon concentrations in the water column Concentration of silicon species in the water column |
| 41 | CTD frame plus rosette sampler |
Particulate total and organic nitrogen concentrations in the water column
Temperature of the water column Chlorophyll pigment concentrations in water bodies Particulate total and organic carbon concentrations in the water column Concentration of silicon species in the water column |
Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)
