2009 Fiscal Year Final Research Report
Study on the effect of short-term variations in the upper ocean on the atmosphere
| Project/Area Number |
19612005
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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 |
地球システム変動
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| Research Institution | Japan Agency for Marine-Earth Science and Technology |
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Principal Investigator |
KAWAI Yoshimi Japan Agency for Marine-Earth Science and Technology, 地球環境変動領域, チームリーダー (40374897)
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| Co-Investigator(Kenkyū-buntansha) |
WADA Akiyoshi 気象庁気象研究所, 主任研究官 (20354475)
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| Research Collaborator |
USUI Norihisa 気象庁気象研究所, 台風研究部, 研究官 (50370333)
SASAOKA Kousei 独立行政法人海洋研究開発機構, 地球環境変動領域, 研究員 (20371148)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 大気海洋相互作用 / リモートセンシング / 海洋物理・陸水学 / 自然現象観測・予測 / 大気海洋結合モデル / 日変動 / 海面水温 / 植物プランクトン |
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| Research Abstract |
We investigated short-term variations of the upper ocean and their impacts on the atmosphere in the northwestern Pacific Ocean around Japan. It was revealed from an analysis of satellite data that the surface chlorophyll-a quick increase events with quick sea surface temperature (SST) drop tended to occur south of Okinawa and Honshu, and in the Kuroshio-Oyashio Extention region, where cyclones often pass. We also performed numerical experiments by using an ocean-atmosphere coupled regional model, and shown that the diurnal variation of SST can modify precipitation in the Baiu season and the intensity of a typhoon.
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