1999 Fiscal Year Final Research Report Summary
Behavior of green house gases at the air-sea interface
| Project/Area Number |
08404035
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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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 UNIVERSITY |
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Principal Investigator |
TSUNOGAI Shizuo Grad. School of Env. Earth Sci., Hokkaido Univ., 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 Grad. School of Env. Earth Sci., Hokkaido Univ., Asso. Prof., 大学院・地球環境科学研究科, 助教授 (00167131)
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| Project Period (FY) |
1996 – 1999
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| Keywords | Carbon dioxide / global warming / marine environment / North Pacific / Continental shelf pump / biological pump / fotal carbon dioxide / air-sea gas exchange |
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| Research Abstract |
The fluxes of green house gases such as CoィイD12ィエD1 at the air-sea interface and the gas exchange mechanism were studied by means of the following 5 methods. They are geochemical balances analysis of at mospheric concentrations, concentration differences at the air-sea interface, temporal changes in the water column inventories and changes recorded in the marine sediments. The most important result obtained is the effect of bubbles. The bubbles not only enhance the gas transfer velocities but also make it extremely large for soluble gases. This enhancement is due to the dissolution of by the hydrostatic pressure.
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