Cruise inventory

RRS James Clark Ross JR20101205 (JR242)

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS James Clark Ross (74JC)
Cruise identifierJR20101205 (JR242)
Cruise period2010-12-05 — 2010-12-10
StatusCompleted
Port of departureRothera, Antarctica
Port of returnStanley, Falkland Islands (Malvinas)
PurposeResearch
ObjectivesThis cruise was a partial occupation of the Drake Passage CTD section. It was hampered by mechanical breakdown of the aircraft that should have taken the scientists to the ship. Therefore personnel on board were asked to undertake whatever measurements they could. 9 CTD stations were completed in the southern half of the section.

The stations are on WOCE section SR1b in eastern Drake Passage.
Underway systems were run throughout
Brian King is the NOC contact, but was not on board during the measurement period.

The remainder of the scheduled CTD section was done on a cruise in April 2011, led by Andy Watson of UEA - cruise JR276. JR276 was also a "recovery" cruise for the failed DIMES cruise in 2010.
Chief scientistBrian A King (National Oceanography Centre, Southampton)
ProjectOceans 2025
Coordinating bodyNatural Environment Research Council (NERC)
Ocean/sea areas 
GeneralSouthern Ocean
SpecificEastern Drake Passage 60°W to 54°W, 61°S to 51°S
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: activity duration in days = 12
Description: Oceanlogger underway temperature, salinity, fluorescence, transmissometer
Water bottle stationsQuantity: number of stations = 9
Description: Discrete salinity samples for CTD calibration
CTD stationsQuantity: number of stations = 9
Description: CTD stations
Current profiler (eg ADCP)Quantity: activity duration in days = 12
Description: Underway shipboard ADCP 75 kHz
Meteorology 
Routine standard measurementsQuantity: activity duration in days = 12
Description: Surface meteorology
Geology and geophysics 
Single-beam echosoundingQuantity: activity duration in days = 12
Description: Single point echo sounder EA600
Data held at BODC 
Series/Profiles 
9  CTD/STD cast
Density of the water column
Transmittance and attenuance of the water column
Electrical conductivity of the water column
Chlorophyll pigment concentrations in water bodies
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Reference numbers
Dissolved oxygen parameters in the water column
Density of the water column
Transmittance and attenuance of the water column
Electrical conductivity of the water column
Chlorophyll pigment concentrations in water bodies
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Reference numbers
Dissolved oxygen parameters in the water column

BODC idDate/TimeLocationDoc.
11338392010-12-07 22:08:52  — 2010-12-07 22:20:47 61° 2' 47" S  54° 35' 2" W  View metadata report for BODC series reference number 1133839
11338402010-12-07 23:17:26  — 2010-12-07 23:31 60° 58' 51" S  54° 37' 47" W  View metadata report for BODC series reference number 1133840
11338522010-12-08 00:52:27  — 2010-12-08 01:13:51 60° 51' 1" S  54° 42' 39" W  View metadata report for BODC series reference number 1133852
11338642010-12-08 02:02:39  — 2010-12-08 02:37:54 60° 49' 59" S  54° 43' 15" W  View metadata report for BODC series reference number 1133864
11338762010-12-08 03:51:34  — 2010-12-08 04:40:01 60° 47' 54" S  54° 44' 21" W  View metadata report for BODC series reference number 1133876
11338882010-12-08 06:39:57  — 2010-12-08 07:34:44 60° 40' 0" S  54° 49' 2" W  View metadata report for BODC series reference number 1133888
11339072010-12-08 10:52:41  — 2010-12-08 11:51:52 60° 20' 3" S  55° 2' 11" W  View metadata report for BODC series reference number 1133907
11339192010-12-08 15:13:48  — 2010-12-08 16:14:25 60° 0' 7" S  55° 14' 30" W  View metadata report for BODC series reference number 1133919
11339202010-12-09 20:52:15  — 2010-12-09 21:50:21 55° 10' 17" S  58° 13' 52" W  View metadata report for BODC series reference number 1133920
Discrete samples 
7  CTD frame plus rosette samplerSalinity of the water column