Cruise inventory

RRS James Cook JC068 (GA10)

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS James Cook (740H)
Cruise identifierJC068 (GA10)
Cruise period2011-12-24 — 2012-01-27
StatusCompleted
Port of departurePort Elizabeth, South Africa
Port of returnMontevideo, Uruguay
PurposeResearch
ObjectivesThe cruise forms part of the international GEOTRACES Programme and focused on the marine chemistry of trace elements and isotopes. It was funded by two NERC proposals, and included scientists from eleven institutes. The cruise was a rescheduled attempt to complete a zonal section across the South Atlantic following the RRS Discovery cruise D357 which was prevented from completing this objective by a medical emergency. JC068 left Port Elizabeth in South Africa on 24th December 2011, called for fuel in Cape Town on 27th December, and then proceeded broadly westward along 40oS to dock in Montevideo on 27th Janury 2012.
Chief scientistGideon Henderson (University of Oxford Department of Earth Sciences)
ProjectGEOTRACES
Cruise reportRRS James Cook JC068 (GA10) cruise report jc068.pdf — access key 'C' (19.83 MB) 
Ocean/sea areas 
GeneralSouth Atlantic Ocean
Track chartsRRS James Cook JC068 (GA10) cruise track — jc068trk.pdf (00 MB) 
Measurements 
Physical oceanography 
Water bottle stationsQuantity: number of profiles = 26
Description: CTD casts - 24 bottle carousel
CTD stationsQuantity: number of profiles = 26
Description: Seabird 911 plus Profiling titanium CTD; temperaturex2, conductivityx2, pressure, dissolved oxygen, fluorometer, altimeter, backscatter, transmissometer
CTD stationsQuantity: number of profiles = 39
Description: Seabird 911 plus Profiling stainless steel CTD; temperaturex2, conductivityx2, pressure, dissolved oxygen, fluorometer, transmissometer, LADCP, altimeter, pinger
Subsurface temperature and salinity measurementsQuantity: activity duration in days = 34
Description: Ship fitted underway data (surface temperature, salinity, fluorescence and transmissiometer)
Subsurface temperature and salinity measurementsQuantity: number of stations = 22
Description: The ocean mercury cycle, Total dissolved Hg, dissolved gases Hg, Total Hg samples collected from both rosetts, underway fish
Subsurface temperature and salinity measurementsQuantity: number of samples = 750
Description: Salinity
Geochemical tracers (eg freons)Quantity: number of samples = 197
Description: Dissolved Noble gases/3He and H
Current profiler (eg ADCP)Quantity: activity duration in days = 34
Description: Vessel mounted ADCP
Other physical oceanographic measurementsQuantity: number of profiles = 67
Description: Vertical turbulence profiler
Chemical oceanography 
OxygenQuantity: number of samples = 700
Description: Winkler titrations for calibrating the CTD DO sensors
Carbon dioxideQuantity: number of samples = 70
Description: Underway DOC/DIC/TDN/Alkalinity samples were taken from the non-toxic seawater supply (intake at ~5m depth)
Carbon dioxideQuantity: number of stations = 24
Description: Profiles of DOC/DIC/TDN /Alkalinity were sampled from the Titanium and Stainless Steel CTDs in 250ml borosilicate bottles.
PhosphateQuantity: number of samples = 936
Description: Discrete water samples collected from CTD bottles to determine inorganic nutrient concentration. Analysed with segmented flow autoanalyser and colourimetric detection.
PhosphateQuantity: number of stations = 7
Description: Sediment core samples collected using a multicore or a box core. Cores sampled for Ra,Pa,Th, Hg, Si isotopes, Biomarkers, pore water metals, macronutrients
NitrateQuantity: number of samples = 936
Description: Discrete water samples collected from CTD bottles to determine inorganic nutrient concentration. Analysed with segmented flow autoanalyser and colourimetric detection.
NitrateQuantity: number of stations = 7
Description: Sediment core samples collected using a multicore or a box core. Cores sampled for Ra,Pa,Th, Hg, Si isotopes, Biomarkers, pore water metals, macronutrients
AmmoniaQuantity: number of samples = 936
Description: Discrete water samples collected from CTD bottles to determine inorganic nutrient concentration. Analysed with segmented flow autoanalyser and colourimetric detection.
AmmoniaQuantity: number of stations = 7
Description: Sediment core samples collected using a multicore or a box core. Cores sampled for Ra,Pa,Th, Hg, Si isotopes, Biomarkers, pore water metals, macronutrients
SilicateQuantity: number of stations = 7
Description: Sediment core samples collected using a multicore or a box core. Cores sampled for Ra,Pa,Th, Hg, Si isotopes, Biomarkers, pore water metals, macronutrients
SilicateQuantity: number of samples = 936
Description: Discrete water samples collected from CTD bottles to determine inorganic nutrient concentration. Analysed with segmented flow autoanalyser and colourimetric detection.
AlkalinityQuantity: number of stations = 24
Description: Profiles of DOC/DIC/TDN /Alkalinity were sampled from the Titanium and Stainless Steel CTDs in 250ml borosilicate bottles.
AlkalinityQuantity: number of samples = 70
Description: Underway DOC/DIC/TDN/Alkalinity samples were taken from the non-toxic seawater supply (intake at ~5m depth)
Trace elementsQuantity: number of stations = 7
Description: Sediment core samples collected using a multicore or a box core. Cores sampled for Ra,Pa,Th, Hg, Si isotopes, Biomarkers, pore water metals, macronutrients
Trace elementsQuantity: number of samples = 374
Description: Dissolved Trace metals, Ti CTD samples
Trace elementsQuantity: number of samples = 123
Description: Dissolved (<0.2 ?m) Co concentrations, underway samples
Trace elementsQuantity: number of samples = 196
Description: Total dissolvable metal to be analysed by ICP-MS on shore at NOC
Trace elementsQuantity: number of samples = 374
Description: Dissolved (<0.2 ?m) Co concentrations, Ti CTD samples
Trace elementsQuantity: number of stations = 7
Description: SAPS (Stand Alone in-situ Pumping System) was used to collect particulate metals, biomarkers and Th234
Trace elementsQuantity: number of samples = 374
Description: Total dissolvable (unfiltered), Dissolved (<0.2 ?m) Fe concentrations, Ti CTD samples
Trace elementsQuantity: number of samples = 123
Description: Total dissolvable, Dissolved (<0.2 ?m) Fe concentrations, underway samples
Trace elementsQuantity: number of samples = 123
Description: Dissolved (<0.2 ?m) Zn concentrations, underway samples
Trace elementsQuantity: number of samples = 374
Description: Dissolved (<0.2 ?m) Zn concentrations, Ti CTD samples
Trace elementsQuantity: number of samples = 123
Description: Dissolved (<0.2 ?m) Al concentrations, underway samples
Trace elementsQuantity: number of samples = 374
Description: Dissolved (<0.2 ?m) Al concentrations, Ti CTD samples
Trace elementsQuantity: number of stations = 11
Description: DISSOLVED TITANIUM, both CTDs
Trace elementsQuantity: number of samples = 88
Description: Dissolved iron speciation, Ti CTD samples
Trace elementsQuantity: number of samples = 374
Description: PARTICULATE TRACE METALS from OTE bottles Ti CTD samples
Trace elementsQuantity: number of samples = 17
Description: Particulate aerosol sampled collected on filters using high volume collector on ship for trace metals and major ions
Trace elementsQuantity: number of samples = 4
Description: Rainwater samples for determination of trace metal and major ion concentrations collected using funnel on ship.
RadioactivityQuantity: number of stations = 12
Description: DOWNWARD PARTICLE FLUXES Th234,U238 samples from rosette and SAPS
IsotopesQuantity: number of samples = 160
Description: Fe isotopes
IsotopesQuantity: number of samples = 94
Description: d13C OF DIC
IsotopesQuantity: number of samples = 16
Description: 223,224Ra and Ac, CTD samples
IsotopesQuantity: number of samples = 192
Description: Particulate d15N and POC, PON isotopes
IsotopesQuantity: number of samples = 11
Description: Metal isotopes in Aerosol (Pb, Nd, Sr, Zn, and Cd isotopes)
IsotopesQuantity: number of samples = 173
Description: Dissolved and Particulate 231Pa/230Th analysed using MC-ICP-MS
IsotopesQuantity: number of samples = 3
Description: Si isotopes, sea water, pore water, sediment, particles
IsotopesQuantity: number of stations = 4
Description: Dissolved Pb, isotopes and Dissolved Pb concentration
IsotopesQuantity: number of samples = 332
Description: Oxygen Isotopes
IsotopesQuantity: number of stations = 7
Description: Sediment core samples collected using a multicore or a box core. Cores sampled for Ra,Pa,Th, Hg, Si isotopes, Biomarkers, pore water metals, macronutrients
IsotopesQuantity: number of samples = 32
Description: 223,224Ra and Ac in surface waters
IsotopesQuantity: number of stations = 7
Description: 227Ac and 223,224,226,228Ra in deep waters (Isotopes and concentration) using SAPS
IsotopesQuantity: number of samples = 170
Description: Dissolved Nd isotopes
IsotopesQuantity: number of stations = 39
Description: Nitrate d15N and d18O
IsotopesQuantity: number of stations = 7
Description: ASSESSING MIXING AND CIRCULATION IN DEEP WATERS WITH 227AC AND 223,224,226,228RA, SAPS
IsotopesQuantity: number of samples = 68
Description: Zn and Cu isotopes
IsotopesQuantity: number of samples = 68
Description: Cr,Cd isotopes
Other chemical oceanographic measurementsQuantity: number of samples = 192
Description: Dissolved Barium will be analaysed at the University of Edinburgh
Other chemical oceanographic measurementsQuantity: number of stations = 7
Description: SAPS (Stand Alone in-situ Pumping System) was used to collect particulate metals, biomarkers and Th234
Contamination 
Trace metalsQuantity: number of stations = 18
Description: As/Sb surface water samples and 6 depth profiles
Trace metalsQuantity: number of stations = 10
Description: Dissolved Rare earth elements (REE) to be analysed at Oxford by ICP_MS
Trace metalsQuantity: number of stations = 22
Description: The ocean mercury cycle, Total dissolved Hg, dissolved gases Hg, Total Hg samples collected from both rosetts, underway fish
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of samples = 190
Description: Absorptive properties of phytoplankton cells
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of samples = 190
Description: HPLC. Analysis for pigments to be analysed at Oxford
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 39
Description: Total chlorophyll measurements
Particulate organic matter (inc POC, PON)Quantity: number of samples = 192
Description: Particulate d15N and POC, PON isotopes
Biochemical measurements (eg lipids, amino acids)Quantity: number of samples = 50
Description: DNA and RNA. To be analysed at IFM-GEOMAR
Biochemical measurements (eg lipids, amino acids)Quantity: number of stations = 24
Description: Intact Polar Lipids (IPL) and Biomarkers
Biochemical measurements (eg lipids, amino acids)Quantity: number of samples = 11
Description: Aerosol organic biomarkers
Biochemical measurements (eg lipids, amino acids)Quantity: number of stations = 7
Description: SAPS (Stand Alone in-situ Pumping System) was used to collect particulate metals, biomarkers and Th234
PhytoplanktonQuantity: number of samples = 190
Description: ANALYSIS OF PHYTOPLANKTON COMMUNITY STRUCTURE using flow cytometry
Pelagic bacteria/micro-organismsDescription: Underway FRRF samples were taken from the non-toxic seawater supply (intake at ~5m depth)
Pelagic bacteria/micro-organismsQuantity: number of stations = 16
Description: FAST REPITITION RATE FLUOROMETRY (FRRF) depth profiles collected from the standard CTD
Other biological/fisheries measurementDescription: CDOM
Other biological/fisheries measurementQuantity: number of samples = 60
Description: Flow cytometry and qPCR analysis of marine picocynaobacteria. To be analysed at MIT
Meteorology 
Routine standard measurementsQuantity: activity duration in days = 34
Description: Ship fitted underway data (surface temperature, salinity, fluorescence and transmissiometer)
Routine standard measurementsQuantity: activity duration in days = 34
Description: Ship fitted meterological instruments (wind speed/direction, Incident light, PAR etc)
Geology and geophysics 
Core - soft bottomQuantity: number of stations = 7
Description: Sediment core samples collected using a multicore or a box core. Cores sampled for Ra,Pa,Th, Hg, Si isotopes, Biomarkers, pore water metals, macronutrients
Data held at BODC 
Series/Profiles 
62  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
Raw light meter output
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
Raw light meter output
Temperature of the water column
Reference numbers
Dissolved oxygen parameters in the water column

BODC idDate/TimeLocationDoc.
11323262011-12-26 07:19:49  — 2011-12-26 07:26:03 34° 56' 53" S  19° 20' 49" E  View metadata report for BODC series reference number 1132326
11323382011-12-28 01:35:38  — 2011-12-28 01:52:32 34° 36' 44" S  17° 3' 13" E  View metadata report for BODC series reference number 1132338
11323512011-12-28 04:04:29  — 2011-12-28 04:24:06 34° 36' 44" S  17° 3' 13" E  View metadata report for BODC series reference number 1132351
11323632011-12-28 16:28:18  — 2011-12-28 16:52:14 35° 28' 6" S  14° 59' 46" E  View metadata report for BODC series reference number 1132363
11323752011-12-28 18:03:12  — 2011-12-28 18:19:35 35° 28' 6" S  14° 59' 46" E  View metadata report for BODC series reference number 1132375
11323872011-12-29 05:38:14  — 2011-12-29 07:08:38 36° 20' 29" S  13° 6' 35" E  View metadata report for BODC series reference number 1132387
11323992011-12-29 09:55:07  — 2011-12-29 11:53:15 36° 21' 37" S  13° 5' 48" E  View metadata report for BODC series reference number 1132399
11324062011-12-29 22:49  — 2011-12-29 23:00:58 36° 20' 35" S  13° 6' 22" E  View metadata report for BODC series reference number 1132406
11324182011-12-30 18:19:22  — 2011-12-30 18:31:43 38° 24' 2" S  10° 24' 5" E  View metadata report for BODC series reference number 1132418
11324312012-01-01 06:45:08  — 2012-01-01 06:58:30 39° 59' 58" S  5° 31' 3" E  View metadata report for BODC series reference number 1132431
11324432012-01-03 12:55:19  — 2012-01-03 13:57:40 40° 0' 53" S  0° 29' 59" W  View metadata report for BODC series reference number 1132443
11324552012-01-04 06:38:03  — 2012-01-04 08:12:23 40° 0' 3" S  3° 2' 3" W  View metadata report for BODC series reference number 1132455
11324672012-01-06 11:13:43  — 2012-01-06 11:26:51 39° 59' 57" S  9° 39' 59" W  View metadata report for BODC series reference number 1132467
11324792012-01-06 12:49:59  — 2012-01-06 14:03:08 39° 59' 57" S  9° 40' 4" W  View metadata report for BODC series reference number 1132479
11324802012-01-06 20:43:57  — 2012-01-06 21:51:55 40° 0' 1" S  9° 39' 45" W  View metadata report for BODC series reference number 1132480
11324922012-01-07 03:15:27  — 2012-01-07 03:42:04 40° 15' 26" S  9° 51' 11" W  View metadata report for BODC series reference number 1132492
11325112012-01-07 08:39:46  — 2012-01-07 09:10:42 40° 15' 27" S  9° 51' 17" W  View metadata report for BODC series reference number 1132511
11325232012-01-08 10:46:43  — 2012-01-08 10:57:59 39° 59' 53" S  13° 0' 0" W  View metadata report for BODC series reference number 1132523
11325352012-01-08 12:22:02  — 2012-01-08 14:11:19 40° 0' 0" S  12° 59' 55" W  View metadata report for BODC series reference number 1132535
11325472012-01-08 17:47:45  — 2012-01-08 18:58:02 40° 0' 0" S  13° 0' 0" W  View metadata report for BODC series reference number 1132547
11325592012-01-09 01:14:13  — 2012-01-09 02:01:23 40° 0' 0" S  12° 59' 59" W  View metadata report for BODC series reference number 1132559
11325602012-01-09 20:26:59  — 2012-01-09 21:39:48 40° 0' 2" S  16° 27' 57" W  View metadata report for BODC series reference number 1132560
11325722012-01-10 08:22:37  — 2012-01-10 09:35:48 40° 0' 7" S  16° 27' 48" W  View metadata report for BODC series reference number 1132572
11325842012-01-10 11:37:36  — 2012-01-10 11:53:07 40° 0' 6" S  16° 27' 54" W  View metadata report for BODC series reference number 1132584
11325962012-01-10 21:36:43  — 2012-01-10 21:51 40° 0' 0" S  16° 28' 0" W  View metadata report for BODC series reference number 1132596
11326032012-01-11 19:22:54  — 2012-01-11 20:48:41 39° 59' 57" S  19° 55' 56" W  View metadata report for BODC series reference number 1132603
11326152012-01-12 00:17:04  — 2012-01-12 01:48:24 40° 0' 1" S  19° 55' 48" W  View metadata report for BODC series reference number 1132615
11326272012-01-12 05:17:28  — 2012-01-12 05:51:25 40° 0' 1" S  19° 55' 49" W  View metadata report for BODC series reference number 1132627
11326392012-01-12 23:52:36  — 2012-01-13 01:22:23 40° 0' 0" S  23° 48' 0" W  View metadata report for BODC series reference number 1132639
11326402012-01-13 04:47:01  — 2012-01-13 06:15:21 40° 0' 0" S  23° 48' 0" W  View metadata report for BODC series reference number 1132640
11326522012-01-13 08:55:43  — 2012-01-13 09:08:25 40° 0' 0" S  23° 48' 0" W  View metadata report for BODC series reference number 1132652
11326642012-01-14 09:15:54  — 2012-01-14 09:27:51 40° 0' 0" S  28° 0' 0" W  View metadata report for BODC series reference number 1132664
11326762012-01-14 10:45:21  — 2012-01-14 12:01:12 40° 0' 0" S  28° 0' 0" W  View metadata report for BODC series reference number 1132676
11326882012-01-14 15:13:42  — 2012-01-14 16:32:35 40° 0' 0" S  28° 0' 0" W  View metadata report for BODC series reference number 1132688
11327072012-01-15 15:19:23  — 2012-01-15 15:30:28 39° 59' 54" S  32° 29' 54" W  View metadata report for BODC series reference number 1132707
11327192012-01-15 16:57:25  — 2012-01-15 18:24:07 39° 59' 18" S  32° 29' 28" W  View metadata report for BODC series reference number 1132719
11327202012-01-15 22:53:14  — 2012-01-16 00:28 39° 59' 38" S  32° 29' 33" W  View metadata report for BODC series reference number 1132720
11327322012-01-16 22:10:11  — 2012-01-16 22:33:28 40° 0' 0" S  37° 25' 0" W  View metadata report for BODC series reference number 1132732
11327442012-01-17 00:11:22  — 2012-01-17 01:41:44 40° 0' 0" S  37° 24' 59" W  View metadata report for BODC series reference number 1132744
11327562012-01-17 06:00:08  — 2012-01-17 07:37:04 40° 0' 0" S  37° 24' 59" W  View metadata report for BODC series reference number 1132756
11327682012-01-17 18:43:24  — 2012-01-17 20:30:50 40° 0' 0" S  38° 15' 13" W  View metadata report for BODC series reference number 1132768
11327812012-01-18 17:51:48  — 2012-01-18 18:06:08 40° 0' 4" S  42° 24' 56" W  View metadata report for BODC series reference number 1132781
11327932012-01-19 00:21:27  — 2012-01-19 02:00:11 40° 0' 0" S  42° 25' 0" W  View metadata report for BODC series reference number 1132793
11328002012-01-19 05:12:28  — 2012-01-19 06:52 40° 0' 0" S  42° 25' 0" W  View metadata report for BODC series reference number 1132800
11328122012-01-19 03:13:52  — 2012-01-19 03:51:31 40° 0' 0" S  42° 25' 0" W  View metadata report for BODC series reference number 1132812
11328242012-01-21 00:14  — 2012-01-21 01:55:56 39° 59' 38" S  47° 25' 0" W  View metadata report for BODC series reference number 1132824
11328362012-01-21 06:06:44  — 2012-01-21 07:53:21 39° 59' 42" S  47° 25' 0" W  View metadata report for BODC series reference number 1132836
11328482012-01-21 10:47:18  — 2012-01-21 11:00:07 39° 59' 8" S  47° 25' 0" W  View metadata report for BODC series reference number 1132848
11328612012-01-22 08:35:17  — 2012-01-22 08:50:32 37° 58' 58" S  51° 1' 45" W  View metadata report for BODC series reference number 1132861
11328732012-01-22 11:10:59  — 2012-01-22 12:47:05 38° 0' 44" S  50° 59' 42" W  View metadata report for BODC series reference number 1132873
11328852012-01-22 16:36:58  — 2012-01-22 18:00:50 38° 0' 47" S  50° 59' 36" W  View metadata report for BODC series reference number 1132885
11328972012-01-22 20:58:39  — 2012-01-22 22:32:29 38° 2' 47" S  50° 58' 39" W  View metadata report for BODC series reference number 1132897
11329042012-01-23 01:53:03  — 2012-01-23 02:10:30 38° 5' 11" S  50° 58' 52" W  View metadata report for BODC series reference number 1132904
11329162012-01-23 03:30:34  — 2012-01-23 05:00:56 38° 6' 33" S  50° 58' 35" W  View metadata report for BODC series reference number 1132916
11329282012-01-24 09:39:58  — 2012-01-24 11:06:33 37° 1' 32" S  52° 30' 8" W  View metadata report for BODC series reference number 1132928
11329412012-01-24 15:38:17  — 2012-01-24 16:49:44 37° 1' 34" S  52° 29' 19" W  View metadata report for BODC series reference number 1132941
11329532012-01-25 01:07:30  — 2012-01-25 01:26:42 37° 0' 47" S  52° 29' 57" W  View metadata report for BODC series reference number 1132953
11329652012-01-25 02:40:12  — 2012-01-25 03:01:42 37° 0' 33" S  52° 29' 57" W  View metadata report for BODC series reference number 1132965
11329772012-01-25 11:44:29  — 2012-01-25 12:21:33 36° 32' 18" S  53° 6' 6" W  View metadata report for BODC series reference number 1132977
11329892012-01-25 15:30:31  — 2012-01-25 16:09:38 36° 31' 58" S  53° 6' 4" W  View metadata report for BODC series reference number 1132989
11329902012-01-26 07:16:42  — 2012-01-26 07:21:03 36° 0' 0" S  54° 0' 0" W  View metadata report for BODC series reference number 1132990
11330042012-01-26 08:17:08  — 2012-01-26 08:21:25 36° 0' 0" S  54° 0' 0" W  View metadata report for BODC series reference number 1133004
Discrete samples 
38  CTD frame plus rosette samplerDissolved metal concentrations in the water column
Radioactivity in the water column
Silicate concentration parameters in the water column
Alkalinity, acidity and pH of the water column
Salinity of the water column
Total dissolved inorganic carbon (TCO2) concentration in the water column
Nitrate concentration parameters in the water column
Temperature of the water column
Dissolved oxygen parameters in the water column
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column
23  Dissolved metal concentrations in the water column
Radioactivity in the water column
Silicate concentration parameters in the water column
Salinity of the water column
Nitrate concentration parameters in the water column
Temperature of the water column
Dissolved oxygen parameters in the water column
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column