2012 Fiscal Year Final Research Report
Atmospheric General Circulation Variability Revisited: Toward theDevelopment of a New Perspective from an Energetic Viewpoint
| Project/Area Number |
22340135
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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 | The University of Tokyo |
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Principal Investigator |
NAKAMURA Hisashi 東京大学, 先端科学技術研究センター, 教授 (10251406)
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| Co-Investigator(Kenkyū-buntansha) |
WATANABE Masahiro 東京大学, 大気海洋研究所, 准教授 (70344497)
SANPE Takeaki 会津大学, 先端情報科学研究センター, 准教授 (50571775)
TANIMOTO Yoichi 北海道大学, 地球環境科学研究院, 教授 (00291568)
TAKAYABU Yukari 東京大学, 大気海洋研究所, 教授 (10197212)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 気候変動 / 気象学 / 大気現象 / 力学モード / エネルギー変換 / ジェット気流 / 大気海洋相互作用 / テレコネクション |
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| Research Abstract |
Persistent anomaly patterns of the atmospheric circulation that influence weather/climatic conditions over Japan are found to be maintained not only through kinetic energy conversion but also (available) potential energy conversion from the westerly jetstream. In addition, the surface wind anomalies associated with the anomaly pattern in summer act to change evaporation over the South China Sea and thereby moisture transport into the region of anomalous cumulus convection to exert positive feedback on it, as a characteristic of a moist dynamical mode.
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