2000 Fiscal Year Final Research Report Summary
O_2/N_2 ratios of the surface seawater : Its role in the biogeochemical cycling
| Project/Area Number |
11694050
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| Research Category |
Grant-in-Aid for Scientific Research (B).
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
地球化学
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| Research Institution | HOKKAIDO UNVERSITY |
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Principal Investigator |
TSUNOGAI Shizuo Hokkaidou Univ.Grad.School of Env.Earth Sci., Prof., 大学院・地球環境科学研究科, 教授 (00001587)
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| Co-Investigator(Kenkyū-buntansha) |
WATANABE Shuichi Hokkaidou Univ.Grad.School of Env.Earth Sci., Asso.Prof., 大学院・地球環境科学研究科, 助教授 (00167131)
NORIKI Shinichiro Hokkaidou Univ.Grad.School of Env.Earth Sci., Prof., 大学院・地球環境科学研究科, 教授 (80109511)
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| Project Period (FY) |
1999 – 2000
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| Keywords | Seawater / Dissolved gases / Biogeochemical cycling / Carbon dioxide / Surface ocean / O_2 / N_2 ratio / N fixation / Marine ecosystem |
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| Research Abstract |
The surface ocean is active in biological processes and important for the biogeochemical cycles, especially for CO_2. We have studied the problems in the western and eastern sides of the North Pacific, applying calibrated methods by both the American and Japanese scientists. We have discussed the results obtained by the both groups. The most important point is a great contrast between the western and the eastern parts, which is causes by dissolved silica contained in the deep water.
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