| 1. Cruise Code : |
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2. Main research theme : |
Biogeochemical cycles in the western North Pacific
Community structure in the time series station K2
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3. Objectives : |
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Temporal biogeochemical changes in the ocean have to be clarified for evaluation of the global warming and the prediction. The objectives of this research cruise are to understanding biogeochemical cycle using sediment traps, to understand food chain and marine biological system, to evaluate biogeochemical changes along 155 degree East in the North Pacific, to characterize chemical properties along the Kuril Islands, and to elucidate the biogenic gas flux through the air-sea interface in the northern North Pacific.
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4. Outline of observation : |
| 1） |
Measurements of temperature, salinity and oxygen profiles using CTD/O2. |
| 2） |
Recovery and deploying of sediment traps and others. |
| 3） |
RMS water sampling and analysis of salinity, oxygen, nutrients, CFCs, total alkalinity, DIC, DOC, pH and other chemical components. |
| 4） |
RMS water sampling for primary production measurement. |
| 5） |
IONESS Net observation. |
| 6） |
on board incubation for understanding food chain. |
| 7） |
Underway measurements of pCO2, DIC, temperature, salinity and nutrients. |
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5.Main research area : |
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The western North Pacific: 0 - 44°N, 155°E, and stations along the Kuril Islands ((47°N, 160°E), (51°N, 165°E) and others).
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6. Cruise period: |
| from Sept. 2007 to Oct. 2007 (30 days) |
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7. Ports of call (tentative) : |
Port of departure:
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Dutchharber |
| Port of call: |
Hachinohe |
| Returning port: |
Sekinehama |
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8. Proponent of main research theme: |
Shuichi Watanabe (Chemical Oceanography)
Makio Honda (Biogeochemistry)
Minoru Kitamura (Marinebiology)
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9. Contact person for questionnaire on this cruise: |
Shuichi Watanabe
Mutsu Institute for Oceanography
Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
690 Kitasekine, Sekine, Mutsu 035-0022, Japan
Phone: +81-175-45-1033, Fax: +81--175-45-1079, E-mail:swata@jamstec.go.jp |
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