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Gravity wave and the Quasi-biennial oscillation associated with tropospheric variability

Research Project

Project/Area Number 20740280
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Meteorology/Physical oceanography/Hydrology
Research InstitutionJapan Agency for Marine-Earth Science and Technology

Principal Investigator

KAWATANI Yoshio  Japan Agency for Marine-Earth Science and Technology, 地球環境変動領域, 研究員 (00392960)

Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords中層大気力学 / 重力波 / 赤道波 / 赤道準2年振動 / 対流圏変動 / 大気大循環モデル
Research Abstract

Equatorial trapped waves (EQWs) and internal gravity waves (GWs) generated by cumulus convections in the troposphere are investigated using an atmospheric general circulation model (AGCM). First, the mechanism of zonally non-uniform distribution of GWs and EQWs was clarified. Next, the roles of EQWs and GWs in driving the quasi-biennial oscillation (QBO) are analyzed. Finally, the QBO in a global warming climate is investigated. These results are published in Journals.

Report

(4 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (20 results)

All 2011 2010 2009 2008

All Journal Article (10 results) (of which Peer Reviewed: 10 results) Presentation (10 results)

  • [Journal Article] The quasi-biennial oscillation in a double CO2 climate2011

    • Author(s)
      Yoshio Kawatani
    • Journal Title

      Journal of the Atmospheric Sciences

      Volume: 68 Pages: 265-283

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The roles of equatorial trapped waves and internal inertia-gravity waves in driving the quasi-biennial oscillation. Part I: Zonal mean wave forcing.2010

    • Author(s)
      Kawatani, Y., K.Sato, T.J.Dunkerton, S.Watanabe, S.Miyahara, M.Takahashi.
    • Journal Title

      J.Atmos. Sci. 67

      Pages: 963-980

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] The roles of equatorial trapped waves and internal inertia-gravity waves in driving the quasi-biennial oscillation. Part II: Three-dimensional distribution of wave forcing.2010

    • Author(s)
      Kawatani, Y., K.Sato, T.J.Dunkerton, S.Watanabe, S.Miyahara, M.Takahashi.
    • Journal Title

      J.Atmos. Sci 67

      Pages: 981-997

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] The quasi-biennial oscillation in a double CO2 climate.2010

    • Author(s)
      Kawatani, Y., K.Hamilton, S.Watanabe.
    • Journal Title

      J.Atmos. Sci. 68

      Pages: 265-283

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] The roles of equatorial trapped waves and internal inertia-gravity waves in driving the quasi-biennial oscillation. Part I : zonal mean wave forcing2010

    • Author(s)
      Yoshio Kawatani
    • Journal Title

      Journal of the Atmospheric Sciences

      Volume: 67 Pages: 963-980

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The roles of equatorial trapped waves and internal inertia-gravity waves in driving the quasi-biennial oscillation. Part II : Three-dimensional distribution of wave forcing2010

    • Author(s)
      Yoshio Kawatani
    • Journal Title

      Journal of the Atmospheric Sciences

      Volume: 67 Pages: 981-997

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The roles of equatorial trapped waves and internal inertia-gravity waves in driving the quasi-biennial oscllation. Part I : zonal mean wave forcing2010

    • Author(s)
      Kawatani, Y.
    • Journal Title

      Jonrnal of the Atmospheric Sciences (印刷中)

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The roles of equatorial trapped waves and internal inertia-gravity waves in driving the quasi-biennial oscillation. Part II : Three-dimensional distribution of wave forcing2010

    • Author(s)
      Kawatani, Y.
    • Journal Title

      Journal of the Atmospheric Sciences (印刷中)

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Global distribution of atmospheric waves in the equatorial upper troposphere and lower stratosphere: AGCM simulation of sources and propagation.2009

    • Author(s)
      Kawatani, Y., M.Takahashi, K.Sato, S.P.Alexander, T.Tsuda.
    • Journal Title

      J.Geophys. Res. 114

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Global distribution of atmospheric waves in the equatorial upper troposphere and lower stratosphere: AGCM simulation of sources and propagation2009

    • Author(s)
      Kawatani, Y.
    • Journal Title

      Journal of Geophysical Research 114

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] The quasi-biennial oscillation in a double CO2 climate.2011

    • Author(s)
      河谷芳雄
    • Organizer
      AGU Chapman Conference on Atmospheric Gravity Waves and Their Effects on General Circulation and Climate.
    • Place of Presentation
      Honolulu, USA
    • Year and Date
      2011-03-02
    • Related Report
      2010 Final Research Report
  • [Presentation] The quasi-biennial oscillation in a double CO2 climate2011

    • Author(s)
      Yoshio Kawatani
    • Organizer
      AGU Chapman Conference on Atmospheric Gravity Waves and Their Effects on General Circulation and Climate
    • Place of Presentation
      アメリカ、ホノルル、East-West center
    • Year and Date
      2011-03-02
    • Related Report
      2010 Annual Research Report
  • [Presentation] 地球温暖化時の赤道準2年振動2010

    • Author(s)
      河谷芳雄
    • Organizer
      日本気象学会秋季大会
    • Place of Presentation
      京都市、京都テルサ
    • Year and Date
      2010-10-25
    • Related Report
      2010 Annual Research Report
  • [Presentation] 地球温暖化時のQBO2010

    • Author(s)
      河谷芳雄
    • Organizer
      第4回赤道大気レーダーシンポジウム
    • Place of Presentation
      宇治市、京都大学宇治おうばくプラザ
    • Year and Date
      2010-09-01
    • Related Report
      2010 Annual Research Report
  • [Presentation] Gravity waves and the QBO in the global warming climate2010

    • Author(s)
      Yoshio Kawatani
    • Organizer
      2010 The Meeting of the Americas
    • Place of Presentation
      ブラジル、イグアフフォールズ、Rafain Hotel and Convention Center
    • Year and Date
      2010-08-09
    • Related Report
      2010 Annual Research Report
  • [Presentation] The roles of equatorial trapped waves and internal inertia-gravity waves in driving the quasi Biennial oscillation2010

    • Author(s)
      Yoshio Kawatani
    • Organizer
      地球惑星科学連合2010年度連合大会
    • Place of Presentation
      千葉市、幕張メッセ国際会議場
    • Year and Date
      2010-05-28
    • Related Report
      2010 Annual Research Report
  • [Presentation] The roles of 3-dimensional propagating gravity waves and equatorial trapped gravity waves on driving the Quasi Biennial Oscillation : A study of high reso lution atmospheric general circulation model.2009

    • Author(s)
      河谷芳雄
    • Organizer
      17th Conference on Atmospheric and Oceanic Fluid Dynamics and 15th Conference on Middle Atmosphere
    • Place of Presentation
      Stowe, USA
    • Year and Date
      2009-06-10
    • Related Report
      2010 Final Research Report
  • [Presentation] The roles of 3-dimensional propagating gravity waves and equatorial trapped gravity waves on driving the Quasi Biennial Oscillation : A study of high resolution atmospheric general circulation model2009

    • Author(s)
      Yoshio Kawatani
    • Organizer
      17th Conference on Atmospheric and Oceanic Fluid Dynamics and 15th Conference on Middle Atmosphere
    • Place of Presentation
      アメリカ、ストー、Stoweflake Mountain Resort and Spa
    • Year and Date
      2009-06-10
    • Related Report
      2009 Annual Research Report
  • [Presentation] Global distribution of atmospheric waves in the equatorial upper troposphere and lower stratosphere : AGCM simulation of sources and propagation2009

    • Author(s)
      Yoshio Kawatani
    • Organizer
      EGU General Assembly 2009
    • Place of Presentation
      オーストリア、ウィーン、Austria Center Vienna
    • Year and Date
      2009-04-20
    • Related Report
      2009 Annual Research Report
  • [Presentation] The roles of 3-dimensional propagating gravity waves and equatorial trapped gravity waves on driving the Quasi Biennial Oscillation.2008

    • Author(s)
      河谷芳雄
    • Organizer
      4th SPARC General Assembly
    • Place of Presentation
      Bologna, Italy
    • Year and Date
      2008-09-01
    • Related Report
      2010 Final Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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