Cruise inventory

RRS James Clark Ross JR20031211 (JR94)

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS James Clark Ross (74JC)
Cruise identifierJR20031211 (JR94)
Cruise period2003-12-11 — 2003-12-15
StatusCompleted
Port of departureRothera, Antarctica
Port of returnStanley, Falkland Islands (Malvinas)
PurposeResearch
ObjectivesThe Southern Ocean is a major component of the coupled ocean-atmosphere climate system. It connects all the other major oceans and influences the water mass characteristics of the deep water over a large proportion of the world. It is an area of net heat loss from the ocean to the atmosphere, and is the conduit for substantial heat and freshwater exchange between the ocean basins. The objectives of the cruise were: to observe the location of the surface and subsurface manifestations of the Polar Front; to observe the deep temperature distribution; to measure the baroclinic and barotropic transport of the ACC at Drake Passage; to determine the interannual variability by comparison with previous datasets; to relate these measurements to continuous time series from moorings maintained by POL; to relate these measurements to surface SST and SSH data acquired by satellites.
High quality CTD and salinity sample measurements were made at 30 stations across Drake Passage from Elephant Island to Burdwood Bank at the same positions as occupied in previous cruises. Stations were full-depth, to within 10 metres of the seabed, with a maximum spacing of 35 km and at 50 metre bathymetry increments on the continental slopes. One other test station was carried out in Drake Passage, and the RaTS station was occupied in Marguerite Bay. The CTD package included a single downlooking WH300 Lowered ADCP. Underway measurements included single-point bathymetry, thermosalinograph, surface meteorology and shipboard ADCP down to 320 metres.
The previous leg of this cruise was from 28 Nov to 06 Dec when the ship went from Stanley to Rothera.

There are two Cruise Summary Reports for JR93 (4598) and JR94 (4597).
Chief scientistBrian A King (Southampton Oceanography Centre)
ProjectCLIVAR, Drake Passage repeats
Coordinating bodyWCRP
Cruise reportRRS James Clark Ross JR20031211 (JR94) cruise report jr94.pdf — access key 'C' (0.66 MB) 
Ocean/sea areas 
GeneralSouth Atlantic Ocean
SpecificSouthern Ocean
Track chartsRRS James Clark Ross JR20031211 (JR94) cruise track — jr94track.pdf (00 MB) 
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: activity duration in days = 19
Description: thermosalinograph
Water bottle stationsQuantity: number of stations = 32
Description: 10 bottles per station for sample salinity
CTD stationsQuantity: number of stations = 32
Description: SBE CTD
Current profiler (eg ADCP)Quantity: activity duration in days = 19
Description: shipboard ADCP
Current profiler (eg ADCP)Quantity: number of stations = 32
Description: lowered ADCP (RDI workhorse 300 KHz)
Meteorology 
Incident radiationQuantity: activity duration in days = 19
Description: surface met
Routine standard measurementsQuantity: activity duration in days = 19
Description: surface met
Geology and geophysics 
Single-beam echosoundingQuantity: activity duration in days = 19
Description: bathymetric survey
Data held at BODC 
Series/Profiles 
30  CTD/STD cast
Density of the water column
Electrical conductivity of the water column
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Density of the water column
Electrical conductivity of the water column
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column

BODC idDate/TimeLocationDoc.
7397882003-12-11 15:58  — 2003-12-11 16:08 60° 55' 43" S  55° 10' 28" W  View metadata report for BODC series reference number 739788
7398072003-12-11 17:16  — 2003-12-11 17:31 60° 52' 57" S  54° 56' 10" W  View metadata report for BODC series reference number 739807
7398192003-12-11 18:49  — 2003-12-11 19:07 60° 51' 0" S  54° 42' 28" W  View metadata report for BODC series reference number 739819
7398202003-12-11 20:19  — 2003-12-11 20:48 60° 49' 59" S  54° 42' 39" W  View metadata report for BODC series reference number 739820
7398322003-12-11 22:21  — 2003-12-11 23:13 60° 48' 10" S  54° 44' 41" W  View metadata report for BODC series reference number 739832
7398442003-12-12 01:14  — 2003-12-12 02:08 60° 39' 45" S  54° 48' 43" W  View metadata report for BODC series reference number 739844
7398562003-12-12 05:03  — 2003-12-12 06:06 60° 20' 1" S  55° 2' 8" W  View metadata report for BODC series reference number 739856
7398682003-12-12 09:16  — 2003-12-12 10:15 59° 59' 51" S  55° 14' 40" W  View metadata report for BODC series reference number 739868
7398812003-12-12 13:25  — 2003-12-12 14:28 59° 39' 29" S  55° 25' 41" W  View metadata report for BODC series reference number 739881
7398932003-12-12 17:38  — 2003-12-12 18:43 59° 20' 0" S  55° 38' 58" W  View metadata report for BODC series reference number 739893
7399002003-12-12 22:02  — 2003-12-12 23:06 59° 0' 3" S  55° 51' 19" W  View metadata report for BODC series reference number 739900
7399122003-12-13 02:14  — 2003-12-13 03:17 58° 41' 5" S  56° 3' 31" W  View metadata report for BODC series reference number 739912
7399242003-12-13 06:16  — 2003-12-13 07:22 58° 22' 4" S  56° 15' 42" W  View metadata report for BODC series reference number 739924
7399362003-12-13 10:23  — 2003-12-13 11:32 58° 2' 39" S  56° 26' 1" W  View metadata report for BODC series reference number 739936
7399482003-12-13 14:48  — 2003-12-13 15:48 57° 44' 4" S  56° 37' 35" W  View metadata report for BODC series reference number 739948
7399612003-12-13 19:05  — 2003-12-13 20:10 57° 25' 22" S  56° 48' 35" W  View metadata report for BODC series reference number 739961
7399732003-12-13 23:32  — 2003-12-14 00:43 57° 6' 4" S  57° 2' 11" W  View metadata report for BODC series reference number 739973
7399852003-12-14 04:04  — 2003-12-14 04:57 56° 47' 5" S  57° 13' 56" W  View metadata report for BODC series reference number 739985
7399972003-12-14 07:55  — 2003-12-14 09:00 56° 27' 58" S  57° 25' 16" W  View metadata report for BODC series reference number 739997
7400092003-12-14 12:24  — 2003-12-14 13:22 56° 8' 30" S  57° 36' 41" W  View metadata report for BODC series reference number 740009
7400102003-12-14 16:21  — 2003-12-14 17:45 55° 49' 59" S  57° 49' 14" W  View metadata report for BODC series reference number 740010
7400222003-12-14 21:17  — 2003-12-14 22:32 55° 30' 54" S  58° 0' 53" W  View metadata report for BODC series reference number 740022
7400342003-12-15 01:41  — 2003-12-15 02:45 55° 12' 19" S  58° 12' 8" W  View metadata report for BODC series reference number 740034
7400462003-12-15 04:33  — 2003-12-15 05:24 55° 10' 13" S  58° 13' 30" W  View metadata report for BODC series reference number 740046
7400582003-12-15 06:56  — 2003-12-15 07:39 55° 7' 20" S  58° 15' 44" W  View metadata report for BODC series reference number 740058
7400712003-12-15 09:19  — 2003-12-15 09:56 55° 4' 10" S  58° 17' 37" W  View metadata report for BODC series reference number 740071
7400832003-12-15 11:36  — 2003-12-15 12:07 54° 57' 38" S  58° 21' 40" W  View metadata report for BODC series reference number 740083
7400952003-12-15 13:20  — 2003-12-15 13:47 54° 56' 37" S  58° 22' 18" W  View metadata report for BODC series reference number 740095
7401022003-12-15 14:49  — 2003-12-15 15:01 54° 55' 20" S  58° 23' 5" W  View metadata report for BODC series reference number 740102
7401142003-12-15 16:55  — 2003-12-15 17:04 54° 39' 56" S  58° 32' 40" W  View metadata report for BODC series reference number 740114