BODC Cruise Metadata Report for RRS James Clark Ross cruise JR20100315 (JR235, JR236, JR239)
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 cruise JR20100315 (JR235, JR236, JR239) |
|---|---|
| Short name | JR20100315 (JR235, JR236, JR239) |
| Objectives and Narrative |
JR235 is a project of the BAS Polar Oceans research programme, working here collaboratively with groups from NOC and UEA (who were onboard primarily for JR239). JR235 is a near-meridional section, running from the northern Weddell Sea, across the Scotia Sea, and up to South Georgia, along which we conducted full-depth CTD/LADCP stations, and drew water samples for measurements of transient tracers (CFCs, SF6), oxygen and nutrients, carbonate system parameters and other oceanographic tracers. This line was first occupied during WOCE in 1995, and has been repeated twice since (1999 and 2005). The primary use of the data will be to assess changes in properties of Antarctic Bottom Water (AABW) as it flows from its source regions in the Weddell Sea, through the Scotia Sea, and into the abyssal layers of the global ocean.
JR236 is a swath bathymetry survey of the Orkney Passage, a deep gap just east of the South Orkney islands on the South Scotia Ridge. This passage is a key region of outflow of AABW from the Weddell Sea, and the BAS Polar Oceans programme (in conjunction with Lamont-Doherty Earth Observatory in the US) is funded to deploy and maintain current meter moorings here. A few such moorings already exist, and prior to scaling-up the moorings effort here, it was deemed sensible to better map the seabed of Orkney Passage, to ensure that the moorings are put in the most effective locations, and to help with interpretation of the data when they are recovered. This was the purpose of JR236, during which we mapped the ocean bed here in unprecedented detail, using the James Clark Ross' multibeam echosounder. JR239 is a near-zonal section along the South Scotia Ridge (and extending eastward beyond the end of the ridge to around 17.5 degW), as part of the Antarctic Deep Water Rates of Export (ANDREX) project. This is an Antarctic Funding Initiative project that began last year with a cruise on RRS James Cook, but which was cut short because of a medical emergency. (NERC consequently provided with a second trenche of fieldwork funding, which has enabled us to complete the fieldwork this year from James Clark Ross). As part of this year's ANDREX cruise (JR239) we have conducted full-depth CTD/CO2/tracer stations along the northern boundary of the Weddell Gyre. When concatenated with last year's ANDREX cruise, and a US-occupied section at the eastern side of the Weddell Gyre (CLIVAR I6S), we will have a complete box of stations around the periphery of the gyre. This will enable us to construct budgets of key parameters such as heat, volume, carbon etc. into and out of the Weddell Gyre, including those associated with AABW. |
| Ship | RRS James Clark Ross |
| Departure Port | Montevideo, Uruguay |
| Departure Date | 2010-03-19 |
| Arrival Port | Stanley, Falkland Islands (Malvinas) |
| Arrival Date | 2010-04-24 |
| Principal Scientist(s) | Mike Meredith (British Antarctic Survey) |
| Responsible Organisation | British Antarctic Survey |
| Associated Project(s) | Antarctic Deep Water Rates of Export (ANDREX) & BAS Polar Oceans research programme |
| IHB Sea Areas Visited | South West Atlantic Ocean (limit 20W) |
| Marsden Squares Visited | 449/485/518/519/520/521 |
| Work Area Description | Weddell Sea, Scotia Sea, with passage in Argentine Basin (Southwest Atlantic, underway measurements only, plus test CTD station) |
| Work Area Bounding Polygon | 70S,60W; 40S,60W; 40S,20W; 70S,20W; 70S,60W |
| Southern Limit | 70S |
| Northern Limit | 40S |
| Western Limit | 60W |
| Eastern Limit | 20W |
Cruise Inventory Datasets
| Physical oceanography | |
|---|---|
| CTD stations |
Quantity:
number of stations =
97
Description: Vertical profiles of temperature, salinity, pressure, dissolved oxygen, fluorescence from Conductivity/Temperature/Depth system |
| CTD stations |
Quantity:
number of stations =
94
Description: Vertical profiles from Niskin bottles measurements: salinity |
| Current profiler (eg ADCP) |
Quantity:
number of stations =
97
Description: Vertical profiles of velocity from Lowered Acoustic Doppler Current Profiler |
| Current profiler (eg ADCP) |
Quantity:
track kilometres =
9000
Description: Underway shipboard ADCP data |
| Geochemical tracers (eg freons) |
Quantity:
number of stations =
70
Description: Vertical profiles from Niskin bottle measurements: chlorofluorocarbons (CFCs), carbon tetrachloride (CCl4), sulphur hexafluoride (SF6) |
| Surface measurements underway (T,S) |
Quantity:
track kilometres =
9000
Description: Underway thermosalinograph data, including surface temperature, salinity, fluorescence |
| Chemical oceanography | |
| Alkalinity |
Quantity:
number of stations =
53
Description: Vertical profiles from Niskin bottle measurements: dissolved inorganic carbon (DIC) and total alkalinity (TA) |
| Carbon dioxide |
Quantity:
number of stations =
53
Description: Vertical profiles from Niskin bottle measurements: dissolved inorganic carbon (DIC) and total alkalinity (TA) |
| Isotopes |
Quantity:
number of stations =
25
Description: Vertical profiles from Niskin bottles for Tritium analyses (samples stored for analysis ashore) |
| Isotopes |
Quantity:
number of stations =
14
Description: Vertical profiles from Niskin bottles for Carbon-14 analyses (samples stored for analysis ashore) |
| Isotopes |
Quantity:
number of stations =
57
Description: Vertical profiles from Niskin bottles for stable oxygen isotope analyses (samples stored for analysis ashore) |
| Nitrate |
Quantity:
number of stations =
93
Description: Vertical profiles from Niskin bottles measurements: dissolved nutrients (nitrate, phosphate, silicate) |
| Other chemical oceanographic measurements |
Quantity:
number of stations =
44
Description: Vertical profiles from Niskin bottles for noble gas analyses (samples stored for analysis ashore) |
| Oxygen |
Quantity:
number of stations =
95
Description: Vertical profiles from Niskin bottle measurements: dissolved oxygen |
| Phosphate |
Quantity:
number of stations =
93
Description: Vertical profiles from Niskin bottles measurements: dissolved nutrients (nitrate, phosphate, silicate) |
| Silicate |
Quantity:
number of stations =
93
Description: Vertical profiles from Niskin bottles measurements: dissolved nutrients (nitrate, phosphate, silicate) |
| Meteorology | |
| Incident radiation |
Quantity:
track kilometres =
9000
Description: Underway surface meteorology, including surface atmospheric pressure, wind speed/direction, total incident radiation, photosynthetically-active radiation, air temperature, humidity |
| Routine standard measurements |
Quantity:
track kilometres =
9000
Description: Underway surface meteorology, including surface atmospheric pressure, wind speed/direction, total incident radiation, photosynthetically-active radiation, air temperature, humidity |
| Geology and geophysics | |
| Multi-beam echosounding |
Quantity:
track kilometres =
9000
Description: Multibeam (swath) echosounder data |
| Single-beam echosounding |
Quantity:
track kilometres =
9000
Description: Single-beam echosounder data |
Cruise Inventory Mooring/Buoy Operations
| Latitude | Longitude | Data type | Description |
|---|---|---|---|
| 57° 9' S | 56° 58' W | Surface drifters/drifting buoys | Argo profiling float, number 3170. Deployed 1900 GMT on 24 March 2010 |
| 60° 48' S | 39° 51' W | Surface drifters/drifting buoys | Argo profiling float, number 4501. Deployed 0945 GMT on 3 April 2010 |
| 63° 58' S | 28° 52' W | Surface drifters/drifting buoys | Argo profiling float, number 4502. Deployed 1545 GMT on 14 April 2010 |
Summary of BODC Data Holdings for the Cruise
National Oceanographic Database
Summary
| # Series | Instrument Description | Parameters |
|---|---|---|
| 95 | CTD/STD cast |
Chlorophyll pigment concentrations in the water column 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 Vertical spatial coordinates |
Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)
Full List
| BODC Reference | Instrument Description | Date/Time | Location | |
|---|---|---|---|---|
| 1045864 | CTD/STD cast | 2010-03-25 21:39Z | 62° 30' S, 56° 47' W | Click for more |
| 1045876 | CTD/STD cast | 2010-03-26 01:00Z | 62° 10' S, 56° 40' W | Click for more |
| 1045888 | CTD/STD cast | 2010-03-26 08:27Z | 61° 23' S, 56° 41' W | Click for more |
| 1045907 | CTD/STD cast | 2010-03-26 16:07Z | 61° 2' S, 54° 24' W | Click for more |
| 1045919 | CTD/STD cast | 2010-03-26 18:18Z | 60° 57' S, 54° 10' W | Click for more |
| 1045920 | CTD/STD cast | 2010-03-26 21:50Z | 60° 44' S, 53° 22' W | Click for more |
| 1045932 | CTD/STD cast | 2010-03-27 01:48Z | 60° 26' S, 52° 49' W | Click for more |
| 1045944 | CTD/STD cast | 2010-03-27 04:33Z | 60° 33' S, 52° 21' W | Click for more |
| 1045956 | CTD/STD cast | 2010-03-27 08:00Z | 60° 22' S, 51° 53' W | Click for more |
| 1045968 | CTD/STD cast | 2010-03-27 10:28Z | 60° 17' S, 51° 23' W | Click for more |
| 1045981 | CTD/STD cast | 2010-03-27 12:34Z | 60° 15' S, 51° 11' W | Click for more |
| 1045993 | CTD/STD cast | 2010-03-27 15:29Z | 60° 13' S, 50° 55' W | Click for more |
| 1046007 | CTD/STD cast | 2010-03-27 18:16Z | 60° 11' S, 50° 33' W | Click for more |
| 1046019 | CTD/STD cast | 2010-03-27 21:00Z | 60° 13' S, 50° 2' W | Click for more |
| 1046020 | CTD/STD cast | 2010-03-28 02:00Z | 60° 12' S, 49° 16' W | Click for more |
| 1046032 | CTD/STD cast | 2010-03-28 05:40Z | 60° 10' S, 48° 34' W | Click for more |
| 1046044 | CTD/STD cast | 2010-03-28 09:06Z | 60° 9' S, 48° 16' W | Click for more |
| 1046056 | CTD/STD cast | 2010-03-28 12:56Z | 60° 9' S, 48° 7' W | Click for more |
| 1046068 | CTD/STD cast | 2010-03-28 21:21Z | 60° 7' S, 47° 42' W | Click for more |
| 1046081 | CTD/STD cast | 2010-03-29 00:50Z | 60° 9' S, 47° 20' W | Click for more |
| 1046093 | CTD/STD cast | 2010-03-29 04:32Z | 60° 21' S, 46° 46' W | Click for more |
| 1046100 | CTD/STD cast | 2010-03-29 17:08Z | 60° 55' S, 44° 0' W | Click for more |
| 1046112 | CTD/STD cast | 2010-03-29 20:34Z | 60° 45' S, 42° 57' W | Click for more |
| 1046124 | CTD/STD cast | 2010-03-29 22:36Z | 60° 44' S, 42° 47' W | Click for more |
| 1046136 | CTD/STD cast | 2010-03-31 21:56Z | 60° 40' S, 42° 23' W | Click for more |
| 1046148 | CTD/STD cast | 2010-04-01 00:19Z | 60° 39' S, 42° 18' W | Click for more |
| 1046161 | CTD/STD cast | 2010-04-01 03:25Z | 60° 39' S, 42° 12' W | Click for more |
| 1046173 | CTD/STD cast | 2010-04-01 07:18Z | 60° 39' S, 42° 11' W | Click for more |
| 1046185 | CTD/STD cast | 2010-04-01 11:04Z | 60° 38' S, 42° 10' W | Click for more |
| 1046197 | CTD/STD cast | 2010-04-01 19:12Z | 60° 37' S, 42° 5' W | Click for more |
| 1046204 | CTD/STD cast | 2010-04-03 17:26Z | 60° 36' S, 41° 58' W | Click for more |
| 1046216 | CTD/STD cast | 2010-04-03 22:29Z | 60° 35' S, 41° 49' W | Click for more |
| 1046228 | CTD/STD cast | 2010-04-04 03:36Z | 60° 34' S, 41° 41' W | Click for more |
| 1046241 | CTD/STD cast | 2010-04-04 07:30Z | 60° 31' S, 41° 22' W | Click for more |
| 1046253 | CTD/STD cast | 2010-04-04 10:40Z | 60° 28' S, 40° 58' W | Click for more |
| 1046265 | CTD/STD cast | 2010-04-04 14:57Z | 60° 25' S, 40° 4' W | Click for more |
| 1046277 | CTD/STD cast | 2010-04-04 18:23Z | 60° 24' S, 39° 18' W | Click for more |
| 1046289 | CTD/STD cast | 2010-04-04 21:27Z | 60° 24' S, 39° 7' W | Click for more |
| 1046290 | CTD/STD cast | 2010-04-05 01:32Z | 60° 25' S, 38° 42' W | Click for more |
| 1046308 | CTD/STD cast | 2010-04-05 06:19Z | 60° 26' S, 38° 0' W | Click for more |
| 1046321 | CTD/STD cast | 2010-04-05 14:54Z | 60° 27' S, 37° 22' W | Click for more |
| 1046333 | CTD/STD cast | 2010-04-05 20:24Z | 60° 22' S, 36° 24' W | Click for more |
| 1046345 | CTD/STD cast | 2010-04-06 16:30Z | 60° 18' S, 35° 28' W | Click for more |
| 1046357 | CTD/STD cast | 2010-04-06 20:27Z | 60° 8' S, 34° 53' W | Click for more |
| 1046369 | CTD/STD cast | 2010-04-06 23:19Z | 60° 1' S, 34° 28' W | Click for more |
| 1046370 | CTD/STD cast | 2010-04-07 03:21Z | 59° 55' S, 33° 51' W | Click for more |
| 1046382 | CTD/STD cast | 2010-04-07 06:50Z | 59° 51' S, 33° 16' W | Click for more |
| 1046394 | CTD/STD cast | 2010-04-07 09:47Z | 59° 51' S, 33° 9' W | Click for more |
| 1046401 | CTD/STD cast | 2010-04-07 13:10Z | 59° 51' S, 33° 4' W | Click for more |
| 1046413 | CTD/STD cast | 2010-04-07 17:17Z | 59° 52' S, 32° 57' W | Click for more |
| 1046425 | CTD/STD cast | 2010-04-07 21:21Z | 59° 53' S, 32° 51' W | Click for more |
| 1046437 | CTD/STD cast | 2010-04-08 00:31Z | 59° 54' S, 32° 48' W | Click for more |
| 1046449 | CTD/STD cast | 2010-04-08 04:04Z | 59° 54' S, 32° 43' W | Click for more |
| 1046450 | CTD/STD cast | 2010-04-08 07:22Z | 59° 56' S, 32° 14' W | Click for more |
| 1046462 | CTD/STD cast | 2010-04-08 11:12Z | 59° 58' S, 31° 28' W | Click for more |
| 1046474 | CTD/STD cast | 2010-04-08 15:48Z | 60° 19' S, 30° 57' W | Click for more |
| 1046486 | CTD/STD cast | 2010-04-08 21:57Z | 60° 28' S, 29° 44' W | Click for more |
| 1046498 | CTD/STD cast | 2010-04-09 05:07Z | 60° 41' S, 28° 15' W | Click for more |
| 1046505 | CTD/STD cast | 2010-04-09 09:49Z | 60° 48' S, 27° 25' W | Click for more |
| 1046517 | CTD/STD cast | 2010-04-09 13:38Z | 60° 49' S, 27° 13' W | Click for more |
| 1046529 | CTD/STD cast | 2010-04-09 21:09Z | 61° 0' S, 25° 45' W | Click for more |
| 1046530 | CTD/STD cast | 2010-04-10 05:32Z | 61° 13' S, 24° 15' W | Click for more |
| 1046542 | CTD/STD cast | 2010-04-10 12:51Z | 61° 25' S, 22° 46' W | Click for more |
| 1046554 | CTD/STD cast | 2010-04-10 21:30Z | 61° 37' S, 21° 16' W | Click for more |
| 1046566 | CTD/STD cast | 2010-04-11 07:04Z | 61° 49' S, 19° 48' W | Click for more |
| 1046578 | CTD/STD cast | 2010-04-11 18:01Z | 61° 25' S, 17° 4' W | Click for more |
| 1046591 | CTD/STD cast | 2010-04-14 12:27Z | 63° 58' S, 28° 52' W | Click for more |
| 1046609 | CTD/STD cast | 2010-04-14 19:15Z | 63° 21' S, 29° 34' W | Click for more |
| 1046610 | CTD/STD cast | 2010-04-15 01:45Z | 63° 4' S, 30° 7' W | Click for more |
| 1046622 | CTD/STD cast | 2010-04-15 07:59Z | 62° 46' S, 30° 41' W | Click for more |
| 1046634 | CTD/STD cast | 2010-04-15 13:45Z | 62° 29' S, 31° 15' W | Click for more |
| 1046646 | CTD/STD cast | 2010-04-15 19:36Z | 62° 4' S, 31° 10' W | Click for more |
| 1046658 | CTD/STD cast | 2010-04-16 03:10Z | 61° 33' S, 31° 6' W | Click for more |
| 1046671 | CTD/STD cast | 2010-04-16 08:55Z | 61° 10' S, 31° 3' W | Click for more |
| 1046683 | CTD/STD cast | 2010-04-16 12:37Z | 61° 6' S, 31° 2' W | Click for more |
| 1046695 | CTD/STD cast | 2010-04-16 16:59Z | 60° 42' S, 31° 0' W | Click for more |
| 1046702 | CTD/STD cast | 2010-04-16 22:37Z | 59° 59' S, 30° 55' W | Click for more |
| 1046714 | CTD/STD cast | 2010-04-17 03:05Z | 59° 46' S, 30° 54' W | Click for more |
| 1046726 | CTD/STD cast | 2010-04-17 07:13Z | 59° 40' S, 30° 54' W | Click for more |
| 1046738 | CTD/STD cast | 2010-04-17 11:01Z | 59° 26' S, 30° 51' W | Click for more |
| 1046751 | CTD/STD cast | 2010-04-17 15:47Z | 59° 3' S, 30° 49' W | Click for more |
| 1046763 | CTD/STD cast | 2010-04-17 20:29Z | 58° 38' S, 30° 49' W | Click for more |
| 1046775 | CTD/STD cast | 2010-04-18 02:36Z | 58° 12' S, 30° 49' W | Click for more |
| 1046787 | CTD/STD cast | 2010-04-18 08:45Z | 57° 48' S, 30° 49' W | Click for more |
| 1046799 | CTD/STD cast | 2010-04-18 14:01Z | 57° 27' S, 31° 19' W | Click for more |
| 1046806 | CTD/STD cast | 2010-04-18 19:03Z | 57° 7' S, 31° 48' W | Click for more |
| 1046818 | CTD/STD cast | 2010-04-19 00:57Z | 56° 46' S, 32° 18' W | Click for more |
| 1046831 | CTD/STD cast | 2010-04-19 06:56Z | 56° 22' S, 32° 52' W | Click for more |
| 1046843 | CTD/STD cast | 2010-04-19 12:15Z | 55° 59' S, 33° 25' W | Click for more |
| 1046855 | CTD/STD cast | 2010-04-19 16:42Z | 55° 43' S, 33° 47' W | Click for more |
| 1046867 | CTD/STD cast | 2010-04-19 21:25Z | 55° 28' S, 34° 7' W | Click for more |
| 1046879 | CTD/STD cast | 2010-04-20 02:00Z | 55° 15' S, 34° 26' W | Click for more |
| 1046880 | CTD/STD cast | 2010-04-20 04:49Z | 55° 13' S, 34° 30' W | Click for more |
| 1046892 | CTD/STD cast | 2010-04-01 15:08Z | 60° 39' S, 42° 11' W | Click for more |
| 1046911 | CTD/STD cast | 2010-03-22 12:19Z | 47° 41' S, 57° 4' W | Click for more |
Project Database
| # Events | Gear Type | Parameters Held |
|---|---|---|
| 78 | Sample taken from ship's non-toxic supply | Salinity of the water column |
Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)
