2012 Fiscal Year Final Research Report
Interactions between air-sea multilevel eddies and their impact on oceanic acidification
| Project/Area Number |
22540454
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Meteorology/Physical oceanography/Hydrology
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| Research Institution | Japan, Meteorological Research Institute |
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Principal Investigator |
WADA Akiyoshi 気象庁気象研究所, 台風研究部, 主任研究官 (20354475)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 台風 / 台風海洋相互作用 / 摩擦抵抗 / 波浪 / 海洋大循環モデル / 海洋大循環モデル / 炭素系化学平衡 / 非静力学大気波浪海洋結合モデル |
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| Research Abstract |
Typhoon-ocean interactions were studied with an ocean general circulation model coupled with a carbon equilibrium model and a nonhydrostatic atmosphere model coupled with ocean wave model, a multilayer ocean model. Numerical simulations lead to clarify that sea-to-air CO_2 flux rapidly increases during the passage of a typhoon, resulting in ocean acidification, that drag coefficients reduce as surface winds increase under high winds, and that the impacts of variations in sea surface temperature with increases in chlorophyll a on typhoon intensity are smaller than those of preexisting oceanic conditions
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