Cruise inventory

RRS James Clark Ross JR16002

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS James Clark Ross (74JC)
Cruise identifierJR16002
Cruise period2016-11-10 — 2016-12-03
StatusCompleted
Port of departureStanley, Falkland Islands (Malvinas)
Port of returnStanley, Falkland Islands (Malvinas)
PurposeResearch
ObjectivesJR16002 is a combined logistic and science cruise. The ship began by opening the base at Signy in the South Orkneys, returned north across Drake Passage and conducted two science projects (SMEs 980 and 993) there, steamed toward Vernadsky Station and Rothera Research Station on the Antarctic Peninsula but was unable to reach either base due to ice conditions, and returned to Port Stanley via a detour in Drake Passage to recover a malfunctioning float. The Drake Passage SME 980 work comprised 30 CTD stations with water samples analysed for salinity and dissolved oxygen and stored for oxygen isotope analysis ashore, as well as deployment of three Deep Apex profiling floats (measuring conductivity, temperature, pressure, and oxygen, as well as time-averaged currents) in southern Drake Passage. One of the floats subsequently leaked and was successfully recovered. For SME 993, three bottom pressure landers were recovered, while two failed to release and were not recovered. Throughout the cruise as ice and weather conditions permitted we made continuous underway measurements of meteorological variables, surface temperature and salinity, upper ocean currents, and bathymetry, along with intermittent sampling of surface water for salinity calibration. The cruise itinerary also allowed for servicing of the tide gauges at Stanley and Signy.
Chief scientistYvonne L Firing (National Oceanography Centre, Southampton)
ProjectACCLAIM; ORCHESTRA
Cruise reportRRS James Clark Ross JR16002 cruise report jr16002.pdf — access key 'C' (7.11 MB) 
Ocean/sea areas 
GeneralSouthern Ocean
SpecificDrake Passage. Antarctic Peninsula.
Track chartsRRS James Clark Ross JR16002 cruise track — jr16002trk.pdf (0.80 MB) 
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: activity duration in days = 27
Description: Routine underway measurements
Water bottle stationsQuantity: number of stations = 30
Description: CTD/LADCP casts and water samples
CTD stationsQuantity: number of stations = 30
Description: CTD/LADCP casts and water samples
Current profiler (eg ADCP)Quantity: number of stations = 30
Description: CTD/LADCP casts and water samples
Current profiler (eg ADCP)Quantity: activity duration in days = 27
Description: Routine underway measurements
Neutrally buoyant floatsQuantity: number of deployments = 3
Description: Deep Apex float deployments
Chemical oceanography 
OxygenQuantity: number of stations = 30
Description: CTD/LADCP casts and water samples
IsotopesQuantity: number of stations = 30
Description: CTD/LADCP casts and water samples
Meteorology 
Routine standard measurementsQuantity: activity duration in days = 27
Description: Routine underway measurements
Geology and geophysics 
Single-beam echosoundingQuantity: activity duration in days = 27
Description: Routine underway measurements
Multi-beam echosoundingQuantity: activity duration in days = 27
Description: Routine underway measurements
Moorings, landers, buoys 
Physical oceanography 
Sea level (inc. bot. press., inverted echosounder)60° 51' 10" S  54° 41' 35" W — Bottom pressure, temperature, and conductivity; recovered 23 Nov 2016
Sea level (inc. bot. press., inverted echosounder)55° 2' 23" S  57° 55' 55" W — Bottom pressure, temperature, and conductivity; recovered 18 Nov 2016
Sea level (inc. bot. press., inverted echosounder)54° 59' 0" S  57° 58' 1" W — Bottom pressure, temperature, and conductivity; recovered 18 Nov 2016