BODC Cruise Metadata Report for RRS Charles Darwin (74AB) cruise CD150
Introduction
This report collates information from the BODC cruise inventory and oceanographic databases. It presents
- Cruise Inventory Information
- A summary of BODC data holdings for the cruise from the
- References - including cruise tracks and cruise reports
Cruise Inventory Information
| Long name | RRS Charles Darwin (74AB) cruise CD150 |
|---|---|
| Short name | CD150 |
| Objectives and Narrative |
RRS Charles Darwin Cruise 150 forms part of a larger programme of research ("Benthic processes in the Arabian Sea: mechanistic relationships between benthos, sediment, biogeochemistry and organic matter cycling"), focusing on the benthic biogeochemistry of the Pakistan Margin, that includes four cruises in total (CD145, 146, 150 and 151). The primary objectives of the present cruise are:
a) to revisit a series of five previously established study sites (A140, A300, A950, A1200 and A1850) spanning the Arabian Sea oxygen minimum zone as it impinges on the seabed at the Pakistan Margin; b) to assess the chemical oceanography of the water column overlying these sites, through CTD sensor profiles and chemical determinations on water bottle samples from both the CTD and BBLS; c) to initiate a programme of detailed seabed sampling at these sites to determine a suite of biological, chemical and biogeochemical parameters using a Megacorer and a multicorer; d) to assess and sample the megabenthos of these sites by the combined use of trawling (Agassiz trawl) and seabed photography (WASP); e) as possible, to carry out similar operations at a site located at a depth between A300 and A950; f) as possible, to provide additional general characterisation of the seabed in the area of these sites using acoustic remote sensing (EM12 and 3.5 kHz) and seabed imagery (WASP). CD150 sailed Muscat (Oman) 22 August 2003 and proceed to the Indus Margin to carry out a programme of work as detailed above. The work was undertaken between 24 Aug-12 Sep, the vessel returning to Muscat 15 September 2003 (full details are given in cruise report). |
| Ship | RRS Charles Darwin |
| Departure Port | Muscat, Oman |
| Departure Date | 2003-08-22 |
| Arrival Port | Muscat, Oman |
| Arrival Date | 2003-09-15 |
| Principal Scientist(s) | Brian James Bett (Southampton Oceanography Centre) |
| Responsible Organisation | Southampton Oceanography Centre |
| Associated Project(s) | Benthic processes in the Arabian Sea |
| IHB Sea Areas Visited | Indian Ocean, Arabian Sea |
| Marsden Squares Visited | 102 |
| Work Area Description | Indian Ocean; Arabian Sea; Indus Margin |
| Work Area Bounding Polygon | 20N,60E; 30N,60E; 30N,70E; 20N,70E; 20N,60E |
| Southern Limit | 20N |
| Northern Limit | 30N |
| Western Limit | 60E |
| Eastern Limit | 70E |
Cruise Inventory Datasets
| Physical oceanography | |
|---|---|
| CTD stations |
Quantity:
number of stations =
7
Description: Water Column: CTD data and water bottle casts at 7 sites spanning OMZ, generating CTD profile data. Various chemical analyses from water bottles. |
| CTD stations |
Quantity:
number of stations =
7
Description: Water Column: CTD casts at seven sites in the upper boundary of the OMZ (soundings c. 90-300m), generating CTD profile data. |
| Water bottle stations |
Quantity:
number of stations =
7
Description: Water Column: CTD data and water bottle casts at 7 sites spanning OMZ, generating CTD profile data. Various chemical analyses from water bottles. |
| Chemical oceanography | |
| Isotopes |
Quantity:
number of stations =
6
Description: Sediment Chemistry: megacore samples collected at 6 sites spanning the OMZ. Samples retained for the analysis of various parameters including photosynthetic pigments, lipids, Thorium, biochemicals, pH, trace metals, DOC, DIC, sulphate, radionuclides. |
| Other chemical oceanographic measurements |
Quantity:
number of stations =
6
Description: Sediment Chemistry: megacore samples collected at 6 sites spanning the OMZ. Samples retained for the analysis of various parameters including photosynthetic pigments, lipids, Thorium, biochemicals, pH, trace metals, DOC, DIC, sulphate, radionuclides. |
| Radioactivity |
Quantity:
number of hauls =
12
Description: AGASSIZ TRAWL HAULS: 12 successful hauls (11 yielding biological material) at various sites throughout the OMZ (soundings c. 140-1820), generating general trawl catch samples, ethanol preserved material for genetic studies, tissue and whole animal samples for various biochemical assessments, gut content radionuclides |
| pH |
Quantity:
number of stations =
6
Description: Sediment Chemistry: megacore samples collected at 6 sites spanning the OMZ. Samples retained for the analysis of various parameters including photosynthetic pigments, lipids, Thorium, biochemicals, pH, trace metals, DOC, DIC, sulphate, radionuclides. |
| Contamination | |
| Trace metals |
Quantity:
number of stations =
6
Description: Sediment Chemistry: megacore samples collected at 6 sites spanning the OMZ. Samples retained for the analysis of various parameters including photosynthetic pigments, lipids, Thorium, biochemicals, pH, trace metals, DOC, DIC, sulphate, radionuclides. |
| Biology and fisheries | |
| Biochemical measurements (eg lipids, amino acids) |
Quantity:
number of hauls =
12
Description: AGASSIZ TRAWL HAULS: 12 successful hauls (11 yielding biological material) at various sites throughout the OMZ (soundings c. 140-1820), generating general trawl catch samples, ethanol preserved material for genetic studies, tissue and whole animal samples for various biochemical assessments, gut content radionuclides |
| Biochemical measurements (eg lipids, amino acids) |
Quantity:
number of stations =
6
Description: Sediment Chemistry: megacore samples collected at 6 sites spanning the OMZ. Samples retained for the analysis of various parameters including photosynthetic pigments, lipids, Thorium, biochemicals, pH, trace metals, DOC, DIC, sulphate, radionuclides. |
| Other biological/fisheries measurement |
Quantity:
number of hauls =
12
Description: AGASSIZ TRAWL HAULS: 12 successful hauls (11 yielding biological material) at various sites throughout the OMZ (soundings c. 140-1820), generating general trawl catch samples, ethanol preserved material for genetic studies, tissue and whole animal samples for various biochemical assessments, gut content radionuclides |
| Phytobenthos |
Quantity:
number of stations =
6
Description: Sediment Biology: Megacore and multicore samples collected at 6 sites spanning the OMZ. Samples retained for the analysis of macrobenthos and meiobenthos. |
| Phytoplankton pigs (eg chlorophyll, fluorescence) |
Quantity:
number of stations =
6
Description: Sediment Chemistry: megacore samples collected at 6 sites spanning the OMZ. Samples retained for the analysis of various parameters including photosynthetic pigments, lipids, Thorium, biochemicals, pH, trace metals, DOC, DIC, sulphate, radionuclides. |
| Zoobenthos |
Quantity:
number of hauls =
12
Description: AGASSIZ TRAWL HAULS: 12 successful hauls (11 yielding biological material) at various sites throughout the OMZ (soundings c. 140-1820), generating general trawl catch samples, ethanol preserved material for genetic studies, tissue and whole animal samples for various biochemical assessments, gut content radionuclides |
| Zoobenthos |
Quantity:
number of stations =
6
Description: Sediment Biology: Megacore and multicore samples collected at 6 sites spanning the OMZ. Samples retained for the analysis of macrobenthos and meiobenthos. |
| Geology and geophysics | |
| Bottom photography |
Quantity:
number of deployments =
23
Description: WASP CAMERA TOWS: various sites throught the OMZ (soundings c. 140-1850 m) generating digital video footage (c. 20 hours) and still photographs (c. 7000). |
| Core - soft bottom |
Quantity:
number of stations =
6
Description: Sediment Chemistry: megacore samples collected at 6 sites spanning the OMZ. Samples retained for the analysis of various parameters including photosynthetic pigments, lipids, Thorium, biochemicals, pH, trace metals, DOC, DIC, sulphate, radionuclides. |
| Core - soft bottom |
Quantity:
number of stations =
6
Description: Sediment Biology: Megacore and multicore samples collected at 6 sites spanning the OMZ. Samples retained for the analysis of macrobenthos and meiobenthos. |
| Multi-beam echosounding |
Quantity:
activity duration in days =
1
Description: SWATH BATHYMETRY: limited Simard EM12 operations |
| Single channel seismic reflection |
Quantity:
activity duration in days =
1
Description: SUB-BOTTOM PROFILING: limited operation of 3.5 kHz profiling system |
| Single-beam echosounding |
Quantity:
activity duration in days =
21
Description: ECHO-SOUNDING: Simrad EA500 10kHZz sounding run more-or-less continuously |
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 |
|---|---|---|
| 7 | Bottle station |
Ammonium and ammonia concentration parameters in water bodies Metadata parameters 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 | |
|---|---|---|---|---|
| 1748071 | Bottle station | 2003-08-24 05:29Z | 22° 52' N, 66° 0' E | Click for more |
| 1748083 | Bottle station | 2003-08-27 05:14Z | 23° 0' N, 66° 24' E | Click for more |
| 1748095 | Bottle station | 2003-08-29 11:14Z | 22° 55' N, 66° 36' E | Click for more |
| 1748102 | Bottle station | 2003-08-31 05:22Z | 23° 12' N, 66° 34' E | Click for more |
| 1748114 | Bottle station | 2003-09-02 07:38Z | 23° 16' N, 66° 42' E | Click for more |
| 1748126 | Bottle station | 2003-09-04 04:43Z | 23° 7' N, 66° 30' E | Click for more |
| 1748138 | Bottle station | 2003-09-07 05:35Z | 23° 0' N, 66° 41' E | Click for more |
Project Database
| # Events | Gear Type | Parameters Held |
|---|---|---|
| 16 | CTD frame plus rosette sampler |
Ammonium and ammonia concentration parameters in water bodies
Transmittance and attenuance of the water column Density of the water column Chlorophyll pigment concentrations in water bodies Silicate concentration parameters in the water column Salinity of the water column Concentration of suspended particulate material in the water column Nitrate concentration parameters in the water column Temperature of the water column Nitrite concentration parameters in the water column Phosphate concentration parameters in the water column Dissolved oxygen parameters in the water column |
| 20 | Sample taken from ship's non-toxic supply | Salinity of the water column |
Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)
