| Project/Area Number |
19340130
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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 |
Meteorology/Physical oceanography/Hydrology
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| Research Institution | Hokkaido University |
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Principal Investigator |
MINOBE Shoshiro Hokkaido University, 大学院・理学研究院, 教授 (70219707)
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| Co-Investigator(Kenkyū-buntansha) |
KOMORI Nobumasa 独立行政法人海洋研究開発機構, 地球シミュレータセンター, 研究員 (80359223)
KUWANOーYOSHIDA Akira 独立行政法人海洋研究開発機構, 地球シミュレータセンター, 研究員 (90392969)
NAKAMURA Tomohiro 北海道大学, 低温科学研究所, 講師 (60400008)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥18,590,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥4,290,000)
Fiscal Year 2009: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2008: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2007: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
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| Keywords | メキシコ湾流 / 黒潮 / 大気海洋相互作用 / 海洋表面水温 / 降水帯 / 衛星観測 / 数値 / 計算 / 現業解析 / 湾流 / 大気加熱 / 衛星データ / 現業解析データ / データ解析 / オホーツク海 / 接地境界層 / 水平風収束 / 大気数値モデル / 大気海洋結合モデル |
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| Research Abstract |
We reported in a cover article of Nature (13 Mar. 2008) that the Gulf Stream causes a series of atmospheric responses, not limited to the atmospheric boundary layer, but penetrate to the free troposphere. Also, we found two different atmospheric modes, i.e., the shallow heating mode prominent in winter and the deep heating mode in summer. The difference of the summer and winter atmospheric responses is associated with the atmospheric stability between the two seasons. A long-term numerical integration of an Atmosphere-Ocean Coupled General Circulation model realistically reproduces major features of the recent satellite surface-wind observations. Furthermore, the first observational evidence of wave breaking, which is expected to cause low sea-surface temperatures, associated with ocean tide is obtained.
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