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BODC Cruise Metadata Report for RRS Discovery (74E3) cruise D357 (GA10)

Introduction

This report collates information from the BODC cruise inventory and oceanographic databases. It presents

Cruise Inventory Information

Long name RRS Discovery (74E3) cruise D357 (GA10)
Short name D357 (GA10)
Objectives and Narrative The three major questions we aim to answer are:

1. A prominent region of high productivity occurs at 40oS in the Atlantic in an ocean basin with low concentrations of micronutrients such as Fe. How are micronutrients supplied to support the productivity in this region, and how does this supply influence the nature of the ecosystem across the basin?

2. Deep-water masses in the South Atlantic upwell to the south and north to supply micronutrients to the Fe-starved Southern Ocean, and to the highly productive Equatorial Atlantic. Which processes control the concentration and distribution of micronutrients in deep waters in the South Atlantic, and therefore ultimately the supply of micronutrients to these surface systems?

3. The sources, sinks, and internal cycling of micronutrients in the global ocean remains poorly understood. What are the fluxes of micronutrients in the global ocean, and what are the dominant processes that control these fluxes?
Ship RRS Discovery
Departure Port Cape Town, South Africa
Departure Date 2010-10-18
Arrival Port Cape Town, South Africa
Arrival Date 2010-11-22
Principal Scientist(s) Gideon Henderson (University of Oxford Department of Earth Sciences)
Responsible Organisation University of Oxford Department of Earth Sciences
Associated Project(s) GEOTRACES
IHB Sea Areas Visited South East Atlantic Ocean (limit 20W)
Marsden Squares Visited 408/442/443
Work Area Description
Unable to lookup cruise bounds at this time
Work Area Bounding Polygon
Southern Limit unknown
Northern Limit unknown
Western Limit unknown
Eastern Limit unknown

Cruise Inventory Datasets

Physical oceanography  
CTD stations Quantity: number of profiles = 22
Description: Seabird 911 plus Profiling titanium CTD; temperaturex2, conductivityx2, pressure, dissolved oxygen, fluorometer, altimeter, backscatter, transmissometer  
CTD stations Quantity: number of profiles = 24
Description: Seabird 911 plus Profiling stainless steel CTD; temperaturex2, conductivityx2, pressure, dissolved oxygen, fluorometer, transmissometer, LADCP, altimeter, pinger  
Current profiler (eg ADCP) Description: Vessel mounted ADCP  
Geochemical tracers (eg freons) Quantity: number of samples = 150
Description: Dissolved Noble gases/3He and H  
Other physical oceanographic measurements Quantity: number of profiles = 67
Description: Vertical turbulence profiler  
Subsurface temperature and salinity measurements Description: Ship fitted underway data (surface temperature, sainity, fluorescence and transmissivity). Ship fitted meterological instruments (wind speed/direction, Incident light, PAR etc)  
Subsurface temperature and salinity measurements Quantity: number of samples = 750
Description: Salinity  
Water bottle stations Description: CTD casts - 24 bottle carousel  
Chemical oceanography  
Alkalinity Quantity: number of samples = 70
Description: Underway DOC/DIC/TDN/Alkalinity samples were taken from the non-toxic seawater supply (intake at ~5m depth)  
Alkalinity Quantity: number of samples = 300
Description: Profiles of DOC/DIC/TDN /Alkalinity were sampled from the Titanium and Stainless Steel CTDs in 250ml borosilicate bottles.  
Ammonia Quantity: number of samples = 854
Description: Discrete water samples collected from CTD bottles to determine inorganic nutrient concentration. Analysed with segmented flow autoanalyser and colourimetric detection.  
Carbon dioxide Quantity: number of samples = 70
Description: Underway DOC/DIC/TDN/Alkalinity samples were taken from the non-toxic seawater supply (intake at ~5m depth)  
Carbon dioxide Quantity: number of samples = 300
Description: Profiles of DOC/DIC/TDN /Alkalinity were sampled from the Titanium and Stainless Steel CTDs in 250ml borosilicate bottles.  
Isotopes Quantity: number of stations = 22
Description: Nitrate ?15N and ?18O  
Isotopes Quantity: number of samples = 48
Description: Si isotopes  
Isotopes Quantity: number of samples = 230
Description: Oxygen Isotopes  
Isotopes Description: Dissolved Cd concentrations and isotopes  
Isotopes Quantity: number of samples = 100
Description: Particulate d15N and POC, PON isotopes  
Isotopes Quantity: number of samples = 103
Description: Dissolved Nd isotopes  
Isotopes Quantity: number of stations = 4
Description: Dissolved Pb, isotopes and Dissolved Pb concentration  
Isotopes Quantity: number of stations = 4
Description: Ge, Ni, Cr, TI, V isotopes  
Isotopes Quantity: number of stations = 4
Description: Fe isotopes  
Isotopes Quantity: number of stations = 4
Description: Zn and Cu isotopes  
Isotopes Quantity: number of samples = 10
Description: 227Ac and 223,224,226,228Ra in deep waters (Isotopes and concentration) using SAPS  
Isotopes Quantity: number of samples = 32
Description: 223,224Ra and Ac in surface waters  
Isotopes Quantity: number of samples = 94
Description: ?13C OF DIC  
Isotopes Quantity: number of samples = 15
Description: Metal isotopes in Aerosol (Pb, Nd, Sr, Zn, and Cd isotopes)  
Nitrate Quantity: number of samples = 854
Description: Discrete water samples collected from CTD bottles to determine inorganic nutrient concentration. Analysed with segmented flow autoanalyser and colourimetric detection.  
Other chemical oceanographic measurements Quantity: number of samples = 8
Description: Pore water chemistry  
Other chemical oceanographic measurements Quantity: number of stations = 9
Description: SAPS (Stand Alone in-situ Pumping System) was used to collect particulate metals, biomarkers and Th234  
Other chemical oceanographic measurements Quantity: number of samples = 49
Description: Metal speciation and Ligands (Fe, Zn, Co) Ti CTD samples to be analysed on shore using CLE-AdSV  
Other chemical oceanographic measurements Quantity: number of samples = 120
Description: Dissolved Barium will be analaysed at the University of Edinburgh  
Other dissolved gases Quantity: number of samples = 103
Description: Dissolved and Particulate 231Pa/230Th analysed using MC-ICP-MS  
Oxygen Quantity: number of samples = 365
Description: Winkler titrations for calibrating the CTD DO sensors  
Phosphate Quantity: number of samples = 854
Description: Discrete water samples collected from CTD bottles to determine inorganic nutrient concentration. Analysed with segmented flow autoanalyser and colourimetric detection.  
Radioactivity Quantity: number of samples = 22
Description: Total Pu and Np concentration patterns referred to as Anthropogenic radionuclides  
Radioactivity Quantity: number of samples = 74
Description: Th234 samples from rosette, Beta radioactivity on verticale profiles  
Silicate Quantity: number of samples = 854
Description: Discrete water samples collected from CTD bottles to determine inorganic nutrient concentration. Analysed with segmented flow autoanalyser and colourimetric detection.  
Trace elements Quantity: number of stations = 15
Description: Dissolved Rare earth elements (REE) to be analysed at Oxford by ICP_MS  
Trace elements Quantity: number of samples = 2
Description: Rainwater samples collected using funnel on ship  
Trace elements Quantity: number of stations = 9
Description: SAPS (Stand Alone in-situ Pumping System) was used to collect particulate metals, biomarkers and Th234  
Trace elements Quantity: number of stations = 22
Description: The ocean mercury cycle, Total dissolved Hg, dissolved gases Hg, Total Hg samples collected from both rosetts, underway fish  
Trace elements Description: Dissolved Cd concentrations and isotopes  
Trace elements Quantity: number of samples = 60
Description: Total dissolvable, Dissolved (<0.2 ?m) Fe concentrations, underway samples  
Trace elements Quantity: number of samples = 271
Description: Total dissolvable, Dissolved (<0.2 ?m) Fe concentrations, and Fe speciation, Ti CTD samples  
Trace elements Quantity: number of samples = 259
Description: Particular trace metals from OTE bottles to be analysed by ICP-MS on shore at Plymouth University  
Trace elements Quantity: number of samples = 247
Description: Total dissolvable metal to be analysed by ICP-MS on shore at NOC  
Trace elements Quantity: number of samples = 118
Description: Total dissolvable, Dissolved (<0.2 ?m) Co concentrations, Ti CTD samples  
Trace elements Quantity: number of samples = 247
Description: Total dissolvable, Dissolved (<0.2 ?m) Zn concentrations, Ti CTD samples  
Trace elements Quantity: number of samples = 60
Description: Total dissolvable, Dissolved (<0.2 ?m) Al concentrations, underway samples  
Trace elements Quantity: number of samples = 15
Description: Particulate aerosol sampled collected on filters using high volume collector on ship  
Trace elements Quantity: number of samples = 271
Description: Total dissolvable, Dissolved (<0.2 ?m) Al concentrations, Ti CTD samples  
Biology and fisheries  
Biochemical measurements (eg lipids, amino acids) Quantity: number of stations = 9
Description: SAPS (Stand Alone in-situ Pumping System) was used to collect particulate metals, biomarkers and Th234  
Biochemical measurements (eg lipids, amino acids) Quantity: number of samples = 150
Description: Intact Polar Lipids (IPL) and Biomarkers  
Biochemical measurements (eg lipids, amino acids) Quantity: number of samples = 50
Description: DNA and RNA. To be analysed at IFM-GEOMAR  
Other biological/fisheries measurement Description: CDOM  
Other biological/fisheries measurement Quantity: number of samples = 60
Description: Flow cytometry and qPCR analysis of marine picocynaobacteria. To be analysed at MIT  
Particulate organic matter (inc POC, PON) Quantity: number of samples = 100
Description: Particulate d15N and POC, PON isotopes  
Pelagic bacteria/micro-organisms Quantity: number of samples = 36
Description: Underway FRRF samples were taken from the non-toxic seawater supply (intake at ~5m depth)  
Pelagic bacteria/micro-organisms Quantity: number of samples = 78
Description: FAST REPITITION RATE FLUOROMETRY (FRRF) depth profiles collected from the standard CTD  
Phytoplankton Quantity: number of samples = 150
Description: ANALYSIS OF PHYTOPLANKTON COMMUNITY STRUCTURE using flow cytometry  
Phytoplankton pigs (eg chlorophyll, fluorescence) Quantity: number of samples = 150
Description:  
Phytoplankton pigs (eg chlorophyll, fluorescence) Quantity: number of samples = 100
Description: HPLC. Analysis for pigments to be analysed at Oxford  
Meteorology  
Routine standard measurements Description: Ship fitted underway data (surface temperature, sainity, fluorescence and transmissivity). Ship fitted meterological instruments (wind speed/direction, Incident light, PAR etc)  
Geology and geophysics  
Core - soft bottom Quantity: number of stations = 7
Description: Sediment core samples collected using a multicore or a box core  

Cruise Inventory Mooring/Buoy Operations

No information on datasets is currently available

Summary of BODC Data Holdings for the Cruise

National Oceanographic Database

Summary

# Series Instrument Description Parameters
40 Bottle station Nitrate concentration parameters in the water column
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column
Quality control flags
Reference numbers
Silicate concentration parameters in 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  
1621358 Bottle station 2010-10-18 22:07Z 34° 36' S, 17° 2' E Click for more
1621371 Bottle station 2010-10-19 06:47Z 34° 37' S, 17° 4' E Click for more
1621383 Bottle station 2010-10-20 01:01Z 35° 27' S, 14° 59' E Click for more
1621395 Bottle station 2010-10-20 10:36Z 35° 22' S, 14° 54' E Click for more
1621402 Bottle station 2010-10-21 12:41Z 36° 30' S, 13° 7' E Click for more
1621414 Bottle station 2010-10-23 04:18Z 36° 28' S, 13° 16' E Click for more
1621426 Bottle station 2010-10-25 17:13Z 38° 24' S, 10° 0' E Click for more
1621438 Bottle station 2010-10-26 06:53Z 38° 25' S, 10° 5' E Click for more
1621451 Bottle station 2010-10-27 10:48Z 40° 1' S, 5° 31' E Click for more
1621463 Bottle station 2010-10-27 19:56Z 40° 3' S, 5° 31' E Click for more
1621475 Bottle station 2010-10-29 08:33Z 40° 0' S, 0° 49' E Click for more
1621487 Bottle station 2010-10-29 18:53Z 40° 1' S, 0° 53' E Click for more
1621499 Bottle station 2010-11-01 05:24Z 40° 0' S, 4° 54' W Click for more
1621506 Bottle station 2010-11-09 03:05Z 34° 20' S, 17° 36' E Click for more
1621518 Bottle station 2010-11-10 03:35Z 34° 58' S, 16° 1' E Click for more
1621531 Bottle station 2010-11-10 13:03Z 34° 54' S, 16° 4' E Click for more
1621543 Bottle station 2010-11-11 12:01Z 35° 55' S, 14° 3' E Click for more
1621555 Bottle station 2010-11-12 07:54Z 36° 27' S, 13° 13' E Click for more
1621567 Bottle station 2010-11-14 10:22Z 39° 13' S, 7° 48' E Click for more
1621579 Bottle station 2010-11-15 03:14Z 39° 15' S, 7° 43' E Click for more
1621580 Bottle station 2010-11-17 12:46Z 37° 28' S, 11° 33' E Click for more
1621592 Bottle station 2010-11-18 07:08Z 35° 54' S, 14° 4' E Click for more
1621611 Bottle station 2010-11-19 09:37Z 34° 42' S, 17° 2' E Click for more
1621623 Bottle station 2010-11-19 20:15Z 34° 18' S, 17° 34' E Click for more
1621635 Bottle station 2010-10-19 04:11Z 34° 37' S, 17° 3' E Click for more
1621647 Bottle station 2010-10-20 07:16Z 35° 25' S, 14° 57' E Click for more
1621659 Bottle station 2010-10-24 00:42Z 36° 27' S, 13° 23' E Click for more
1621660 Bottle station 2010-10-24 13:59Z 36° 25' S, 13° 15' E Click for more
1621672 Bottle station 2010-10-26 03:42Z 38° 25' S, 10° 4' E Click for more
1621684 Bottle station 2010-10-27 16:56Z 40° 3' S, 5° 31' E Click for more
1621696 Bottle station 2010-10-29 14:14Z 40° 0' S, 0° 51' E Click for more
1621703 Bottle station 2010-10-30 15:59Z 39° 59' S, 0° 55' E Click for more
1621715 Bottle station 2010-11-09 18:01Z 34° 37' S, 17° 0' E Click for more
1621727 Bottle station 2010-11-10 09:33Z 34° 52' S, 16° 4' E Click for more
1621739 Bottle station 2010-11-11 18:57Z 35° 57' S, 14° 5' E Click for more
1621740 Bottle station 2010-11-12 13:27Z 36° 27' S, 13° 14' E Click for more
1621752 Bottle station 2010-11-15 00:07Z 39° 15' S, 7° 44' E Click for more
1621764 Bottle station 2010-11-15 15:29Z 39° 17' S, 7° 39' E Click for more
1621776 Bottle station 2010-11-17 07:58Z 37° 26' S, 11° 37' E Click for more
1621788 Bottle station 2010-11-19 17:42Z 34° 18' S, 17° 36' E Click for more

Project Database

# Events Gear Type Parameters Held
77 All plastic clean surface pumped supply Carotenoid and flavenoid pigment concentrations in water bodies
Radioactivity in water bodies
Chlorophyll pigment concentrations in water bodies
Dissolved metal concentrations in the water column
15 Atmospheric air sampling pump Sulphur species concentrations in the atmosphere
Metal concentrations in the atmosphere
Atmospheric particulates
Stable isotopes in the atmosphere
Concentration of inorganic halogens in the atmosphere
Concentration of nitrogen species in the atmosphere
25 CTD frame plus rosette sampler Transmittance and attenuance of the water column
Dissolved total and organic nitrogen concentrations in the water column
Total dissolved inorganic carbon (TCO2) concentration in the water column
Carotenoid and flavenoid pigment concentrations in water bodies
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column
Dissolved oxygen parameters in the water column
Salinity of the water column
Temperature of the water column
Optical backscatter
Dissolved organic carbon concentration in the water column
Stable isotopes in water bodies
Silicate concentration parameters in the water column
Visible waveband radiance and irradiance measurements in the water column

Raw oxygen sensor output
Density of the water column
Nitrate concentration parameters in the water column
Radioactivity in water bodies
Electrical conductivity of the water column
Chlorophyll pigment concentrations in water bodies
Alkalinity, acidity and pH of the water column
Dissolved metal concentrations in the water column
6 Stand-alone pumps Radioactivity in water bodies
21 No parameter data available
4 Rain water collector Precipitation chemistry

Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)

References

Track Charts

Track Chart

Reports

Cruise Report