BODC Cruise Metadata Report for Hakuho Maru cruise KH09-05 (GI04)
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 | Hakuho Maru cruise KH09-05 (GI04) |
|---|---|
| Short name | KH09-05 (GI04) |
| Objectives and Narrative | This cruise has been internationally authorized as the first GEOTRACES meridional study in the Indian Ocean. GEOTRACES means an international study of the marine biogeochemical cycles of trace elements and their isotopes (TEIs) in a global scale. The determination of trace elements has recently become a central focus of many research programs that seek information on the biogeochemical processes in the ocean. The study of TEIs has graduated from a curiosity to understand how the chemical diversity of trace elements, in their various redox and chemical speciation states, interacts with the physical and biological processes occurring in the ocean. This is particularly important in the case of micronutrients such as Fe, whose oceanic distributions seem to be a crucial link to climatic processes. Together with other biologically required TEIs, perturbations of their cycles induced by the climate change may have fundamental consequences for the global carbon cycle, which is firmly associated with global climate. Although our knowledge on the behavior of TEIs in the ocean is fairly small at the present stage, recent advances on analytical and clean sampling techniques have just enabled us to get precise information on TEIs in the ocean, which is the powerful background to initiate a new international program, GEOTRACES. As the GEOTRACES initiative in the Indian Ocean, the main study theme of this cruise was marine geochemical observations in the northern (chiefly in the Bengal Bay) and western Indian Ocean from the Arabian Sea to the Antarctic Sea along a meridional line. Our ability to predict the future environmental change caused by the global warming depends upon knowledge on the distribution of biologically important chemical species in the ocean and their exchange flux at the air-sea and sediment-water interfaces. The Indian Ocean occupies a vast area of the world ocean, but little is known about the marine biogeochemical cycles on TEIs. Thus, it is important to understand the role of the Indian Ocean in the global carbon cycle including its temporal variations recorded in marine sediments. |
| Ship | Hakuho Maru |
| Departure Port | Tokyo, Japan |
| Departure Date | 2009-11-06 |
| Arrival Port | Cape Town, South Africa |
| Arrival Date | 2010-01-09 |
| Principal Scientist(s) | Toshitaka Gamo (Ocean Research Institute, University of Tokyo) |
| Responsible Organisation | Ocean Research Institute, University of Tokyo |
| Associated Project(s) | GEOTRACES -Trace elements and their isotopes in the water column |
| IHB Sea Areas Visited | Indian Ocean |
| Marsden Squares Visited | 28/30/329/364/401/438/441/474/476/477/510/512/547/548/66 |
| 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 | |
|---|---|
| Bathythermograph |
Quantity:
number of stations =
9
Description: Water column measurement using XBTs and XCTDs. |
| CTD stations |
Quantity:
number of stations =
12
Description: Seawater samples were taken using a Seabird Carousel-32 Multi Bottle water sampling system containing a Seabird SBE-9plus CTD. The system was lowered from sea surface to just above the bottom, attached at the end of Ti- armored cable. Pre-cleaned 12L Niskin-X bottles (Teflon-coated) were used for seawater sampling. |
| CTD stations |
Quantity:
number of stations =
9
Description: Water column measurement using XBTs and XCTDs. |
| Subsurface temperature and salinity measurements |
Quantity:
number of stations =
12
Description: Seawater samples were taken using a Seabird Carousel-32 Multi Bottle water sampling system containing a Seabird SBE-9plus CTD. The system was lowered from sea surface to just above the bottom, attached at the end of Ti- armored cable. Pre-cleaned 12L Niskin-X bottles (Teflon-coated) were used for seawater sampling. |
| Transparency (eg transmissometer) |
Quantity:
number of stations =
12
Description: Seawater samples were taken using a Seabird Carousel-32 Multi Bottle water sampling system containing a Seabird SBE-9plus CTD. The system was lowered from sea surface to just above the bottom, attached at the end of Ti- armored cable. Pre-cleaned 12L Niskin-X bottles (Teflon-coated) were used for seawater sampling. |
| Water bottle stations |
Quantity:
number of stations =
12
Description: Seawater samples were taken using a Seabird Carousel-32 Multi Bottle water sampling system containing a Seabird SBE-9plus CTD. The system was lowered from sea surface to just above the bottom, attached at the end of Ti- armored cable. Pre-cleaned 12L Niskin-X bottles (Teflon-coated) were used for seawater sampling. |
| Chemical oceanography | |
| Nitrate |
Quantity:
number of stations =
12
Description: Seawater samples were taken using a Seabird Carousel-32 Multi Bottle water sampling system containing a Seabird SBE-9plus CTD. The system was lowered from sea surface to just above the bottom, attached at the end of Ti- armored cable. Pre-cleaned 12L Niskin-X bottles (Teflon-coated) were used for seawater sampling. |
| Nitrite |
Quantity:
number of stations =
12
Description: Seawater samples were taken using a Seabird Carousel-32 Multi Bottle water sampling system containing a Seabird SBE-9plus CTD. The system was lowered from sea surface to just above the bottom, attached at the end of Ti- armored cable. Pre-cleaned 12L Niskin-X bottles (Teflon-coated) were used for seawater sampling. |
| Oxygen |
Quantity:
number of stations =
12
Description: Seawater samples were taken using a Seabird Carousel-32 Multi Bottle water sampling system containing a Seabird SBE-9plus CTD. The system was lowered from sea surface to just above the bottom, attached at the end of Ti- armored cable. Pre-cleaned 12L Niskin-X bottles (Teflon-coated) were used for seawater sampling. |
| Phosphate |
Quantity:
number of stations =
12
Description: Seawater samples were taken using a Seabird Carousel-32 Multi Bottle water sampling system containing a Seabird SBE-9plus CTD. The system was lowered from sea surface to just above the bottom, attached at the end of Ti- armored cable. Pre-cleaned 12L Niskin-X bottles (Teflon-coated) were used for seawater sampling. |
| Silicate |
Quantity:
number of stations =
12
Description: Seawater samples were taken using a Seabird Carousel-32 Multi Bottle water sampling system containing a Seabird SBE-9plus CTD. The system was lowered from sea surface to just above the bottom, attached at the end of Ti- armored cable. Pre-cleaned 12L Niskin-X bottles (Teflon-coated) were used for seawater sampling. |
| Trace elements |
Quantity:
number of stations =
12
Description: Seawater samples were taken using a Seabird Carousel-32 Multi Bottle water sampling system containing a Seabird SBE-9plus CTD. The system was lowered from sea surface to just above the bottom, attached at the end of Ti- armored cable. Pre-cleaned 12L Niskin-X bottles (Teflon-coated) were used for seawater sampling. |
| pH |
Quantity:
number of stations =
12
Description: Seawater samples were taken using a Seabird Carousel-32 Multi Bottle water sampling system containing a Seabird SBE-9plus CTD. The system was lowered from sea surface to just above the bottom, attached at the end of Ti- armored cable. Pre-cleaned 12L Niskin-X bottles (Teflon-coated) were used for seawater sampling. |
| Biology and fisheries | |
| Zooplankton |
Quantity:
number of stations =
4
Description: Norpac twin plankton nets down to 150 to 200 m depth |
| Geology and geophysics | |
| Core - soft bottom |
Quantity:
number of cores =
11
Description: Surface sediment (20~40 cm depth) was taken using a multiple corer. |
| Core - soft bottom |
Quantity:
number of cores =
2
Description: Sediment core samples (~15 m) were taken using a piston corer. |
| Gravity measurements |
Quantity:
number of track lines =
1
Description: Underway geophysical measurements along the ship track |
| Multi-beam echosounding |
Quantity:
number of track lines =
1
Description: Underway geophysical measurements along the ship track |
Cruise Inventory Mooring/Buoy Operations
| Latitude | Longitude | Data type | Description |
|---|---|---|---|
| 30° 0' S | 64° 59' E | Neutrally buoyant floats | Argo float |
| 37° 45' S | 57° 36' E | Neutrally buoyant floats | Argo float |
| 44° 19' S | 28° 55' E | Neutrally buoyant floats | Argo float |
Summary of BODC Data Holdings for the Cruise
National Oceanographic Database
Summary
| # Series | Instrument Description | Parameters |
|---|---|---|
| 9 | CTD/STD cast |
Chlorophyll pigment concentrations in water bodies Concentration of suspended particulate material in the water column Dissolved oxygen parameters in the water column Reference numbers Salinity of the water column Temperature of the water column Vertical spatial coordinates |
| 3 | CTD/STD cast |
Chlorophyll pigment concentrations in water bodies Dissolved oxygen parameters in the water column Reference numbers Salinity of the water column Temperature of 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 | |
|---|---|---|---|---|
| 2161814 | CTD/STD cast | 2009-12-11 00:26Z | 20° 0' S, 72° 33' E | Click for more |
| 2161826 | CTD/STD cast | 2009-12-21 08:26Z | 30° 0' S, 65° 0' E | Click for more |
| 2161838 | CTD/STD cast | 2009-12-23 21:16Z | 37° 45' S, 57° 37' E | Click for more |
| 2161851 | CTD/STD cast | 2009-12-29 20:48Z | 62° 0' S, 40° 6' E | Click for more |
| 2161863 | CTD/STD cast | 2009-11-17 00:09Z | 10° 0' N, 88° 0' E | Click for more |
| 2161875 | CTD/STD cast | 2009-11-17 14:57Z | 8° 31' N, 86° 1' E | Click for more |
| 2161887 | CTD/STD cast | 2009-11-20 17:09Z | 0° 0' S, 80° 0' E | Click for more |
| 2161899 | CTD/STD cast | 2009-11-29 11:16Z | 16° 44' N, 69° 0' E | Click for more |
| 2161906 | CTD/STD cast | 2009-11-30 22:58Z | 14° 0' N, 69° 0' E | Click for more |
| 2161918 | CTD/STD cast | 2009-12-02 22:54Z | 10° 0' N, 68° 45' E | Click for more |
| 2161931 | CTD/STD cast | 2009-12-05 01:03Z | 4° 0' N, 69° 0' E | Click for more |
| 2161943 | CTD/STD cast | 2009-12-07 00:53Z | 5° 16' S, 67° 54' E | Click for more |
Project Database
| # Events | Gear Type | Parameters Held |
|---|---|---|
| 11 | Unknown water sampling device |
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 Stable isotopes in water bodies Silicate concentration parameters in the water column Ammonium and ammonia concentration parameters in water bodies Nitrate concentration parameters in the water column Chlorophyll pigment concentrations in water bodies Alkalinity, acidity and pH of the water column |
| 97 | CTD frame plus rosette sampler |
Total dissolved inorganic carbon (TCO2) concentration in the water column
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 Stable isotopes in water bodies Silicate concentration parameters in the water column Ammonium and ammonia concentration parameters in water bodies Nitrate concentration parameters in the water column Chlorophyll pigment concentrations in water bodies Alkalinity, acidity and pH of the water column Dissolved metal concentrations in the water column |
Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)
