Direct and indirect effects of atmospheric gravity waves on the climate system
| Project/Area Number |
22340134
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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 |
SATO Kaoru 東京大学, 理学(系)研究科(研究院), 教授 (90251496)
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| Co-Investigator(Renkei-kenkyūsha) |
AKIYOSHI Hideharu 独立行政法人国立環境研究所, 大気圏環境 研究領域, 主任研究員 (80211697)
WATANABE Shingo 独立行政法人海洋研究開発機構, 地球環境 変動研究領域, 研究員 (50371745)
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| Project Period (FY) |
2010-04-01 – 2013-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
Fiscal Year 2012: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2011: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2010: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
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| Keywords | 中層大気 / 大気重力波 / 大気大循環 / 極成層圏雲 / オゾンホール / ロスビー波 / コリオリ力 / 重力波 / 物質循環 / 極中間圏雲 / 極中間圏 |
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| Research Abstract |
The effects of gravity waves (GW) in the earth climate are categorized into two: direct effects through their ability to deposit momentum to drive the general circulation, and indirect effects on the ozone chemistry through their temperature fluctuations to modulate polar stratospheric cloud amounts. Using data from a high-resolution general circulation model and a chemistry climate model, it was shown that GW forcing is distributed much wider than the source region by significant refraction and advection by the mean flow, that GW forcing is critical to the dissipation phase of the sudden stratospheric warming, and that the main forcing to drive the stratospheric circulation in the summer hemisphere is attributable to GW. By analyzing satellite data, GW indirect effect on the ozone chemistry is quantified. Moreover, we succeeded in formulation of a unified theory of the 3-d circulation driven by Rossby waves and GW that is inevitable for future studies using high-resolution data.
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Report
(4 results)
Research Products
(129 results)
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[Journal Article] Recent developments in gravity wave effects in climate models, and the global distribution of gravity wave momentum flux from observations and models2010
Author(s)
Alexander. M. J., M. Geller, C. McLandress, S. Polavarapu, P. Preusse, F. Sassi, K. Sato, S. Eckermann, M. Ern, A. Hertzog, Y. Kawatani, M. Pulido, T. Shaw, M. Sigmond, R. Vincent, S. Watanabe
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Journal Title
Q. J. Roy. Meteorol. Soc.
Volume: 136
Issue: 650
Pages: 1103-1124
DOI
Related Report
Peer Reviewed
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[Journal Article] Recent developments in gravity wave effects in climate models, and the global distribution of gravity wave momentum flux from observations and models2010
Author(s)
Alexander, M.J., M.Geller, C.McLandress, S.Polavarapu, P.Preusse, F.Sassi, K.Sato, S.Eckermann, M.Ern, A.Hertzog, Y.Kawatani, M.Pulido, T.Shaw, M.Sigmond, R.Vincent, S.Watanabe
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Journal Title
Q.J.Roy.Meteorol.Soc.
Volume: 136
Pages: 1103-1124
Related Report
Peer Reviewed
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[Presentation] Program of the Antarctic Syowa MST/IS Radar (PANSY)2011
Author(s)
K.Sato, M.Tsutsumi, T.Sato, T.Nakamura, A.Saito, Y.Tomikawa, K.Nishimura, H.Yamagishi, T.Yamanouchi
Organizer
AGU Chapman Conference on Atmospheric Gravity Waves and Their Effects on General Circulation and Climate
Place of Presentation
Honolulu, Hawaii, U.S.A.
Year and Date
2011-02-28
Related Report
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[Presentation] 南極昭和基地大型大気レーダー計画2010
Author(s)
佐藤薫, 堤雅基, 佐藤亨, 中村卓司, 齊藤昭則, 冨川喜弘, 西村耕司, 山岸久雄, 山内恭
Organizer
第4回南極観測シンポジウム
Place of Presentation
立川,国立極地研究所
Year and Date
2010-09-15
Related Report
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[Presentation] Program of the Antarctic Syowa MST/IS Radar (PANSY)2010
Author(s)
K.Sato, M.Tsutsumi, T.Sato, T.Nakamura, A.Saito, Y.Tomikawa, K.Nishimura, H.Yamagishi, T.Yamanouchi, T.Aso, M.Ejiri
Organizer
The 38th Assembly of the Committee on Space Research
Place of Presentation
Bremen, Germany(invited)
Year and Date
2010-07-18
Related Report
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[Presentation] Program of the Antarctic Syowa MST/IS Radar (PANSY)2010
Author(s)
K.Sato, M.Tsutsumi, T.Sato, T.Nakamura, A.Saito, Y.Tomikawa, K.Nishimura, H.Yamagishi, T.Yamanouchi, T.Aso, M.Ejiri
Organizer
EISCAT Council Meeting
Place of Presentation
Tokyo
Year and Date
2010-06-04
Related Report
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[Presentation] PANSYの目指す大気科学2010
Author(s)
佐藤薫, 堤雅基, 佐藤亨, 中村卓司, 齊藤昭則, 冨川喜弘, 西村耕司, 山岸久雄, 山内恭
Organizer
日本地球惑星科学連合2010年大会
Place of Presentation
千葉,幕張メッセ国際会議場
Year and Date
2010-05-23
Related Report
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[Presentation] 南極昭和基地大型大気レーダーの技術2010
Author(s)
堤雅基, 佐藤薫, 佐藤亨, 中村卓司, 齊藤昭則, 冨川喜弘, 西村耕司, 山岸久雄, 山内恭
Organizer
日本地球惑星科学連合2010年大会
Place of Presentation
千葉,幕張メッセ国際会議場
Year and Date
2010-05-23
Related Report
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[Presentation] Program of the Antarctic Syowa MST/IS Radar (PANSY).
Author(s)
K. Sato, M. Tsutsumi, T. Sato, T. Nakamura, A. Saito, Y. Tomikawa, K. Nishimura, H. Yamagishi, and T. Yamanouchi
Organizer
IUGG 2011 General Assembly, Melbourne
Place of Presentation
Melbourne, Australia
Related Report
Invited
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