| Project/Area Number |
19540459
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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 | Kyoto University |
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Principal Investigator |
根田 昌典 Kyoto University, 大学院・理学研究科, 助教 (10273434)
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| Co-Investigator(Kenkyū-buntansha) |
望月 崇 海洋研究開発機構, 地球環境変動領域, 特任研究員 (00450776)
長谷川 拓也 海洋研究開発機構, 地球環境変動領域, ポスドク研究員 (40466256)
名倉 元樹 米国大気海洋局, 太平洋海洋研究所 (10421877)
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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 |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2007: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 大気海洋相互作用 / 暖水プール / エルニーニョ現象 / インド洋ダイポールモード現象 / 海面温度 / 沿岸湧昇 / 4次元データ同化システム / エルニーニョ / ダイポールモード / 四次元同化システム / ENSO / ダィポールモード / 4次元データ同化 / 水温変動 |
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| Research Abstract |
We attempted to evaluate the role of the coastal upwelling for the change of the sea surface temperature (SST) in Warm Water Pool, by using the products of the 4 dimensional variational data assimilation technique (4DVAR) and the observation records. We found that the change of the SST in the coastal areas could play a significant role for the large scale phenomena such as El Nino Southern Oscillation (ENSO) or the Indian Ocean Dipole Mode (IOD) at interannual time scales, as the local air-sea coupling processes can have an effect as a trigger, e.g., the relationship between the coastal upwelling and the resultant atmospheric convective adjustment.
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