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Changes of atmospheric gravity waves, equatorial quasi-biennial oscillation and semiannual oscillation associated with global warming climate

Research Project

Project/Area Number 23740363
Research Category

Grant-in-Aid for Young Scientists (B)

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

Principal Investigator

KAWATANI Yoshio  独立行政法人海洋研究開発機構, 地球環境変動領域, 主任研究員 (00392960)

Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords地球温暖化 / 赤道準2年振動 / 半年振動 / 重力波 / 国際情報交換 / 国際情報交流
Research Abstract

The effects of sea surface temperature (SST) and carbon dioxide (CO2) on future changes in the quasi-biennial oscillation (QBO) are investigated using a climate model. Idealized model experiment using the future SST with the present CO2 and the present SST with the future CO2 are conducted. We found that increasing SST mainly plays roles in decreasing the amplitude of the QBO in the lower stratosphere.
Next, we analyzed near-equatorial radiosonde observations for 1953-2012 and reveal a long-term trend of weakening amplitude in the zonal wind QBO in the tropical lower stratosphere. The trend is particularly notable at 70 hPa, where the QBO amplitudes dropped by roughly 30% over the period. This trend is also apparent in the global warming simulations of the four models in the Coupled Model Intercomparison Project Phase 5 (CMIP5) that realistically simulate the QBO.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (39 results)

All 2014 2013 2012 2011 Other

All Journal Article (11 results) (of which Peer Reviewed: 10 results) Presentation (26 results) (of which Invited: 2 results) Remarks (2 results)

  • [Journal Article] 成層圏に地球温暖化シグナルを発見!2014

    • Author(s)
      河谷芳雄
    • Journal Title

      パリティ

      Volume: 29 Pages: 44-48

    • NAID

      40020021559

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Weakened stratospheric Quasibiennial Oscillation driven by increased tropical mean upwelling2013

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

      Nature

      Volume: 497 Issue: 7450 Pages: 478-481

    • DOI

      10.1038/nature12140

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] The effects of changes in sea surface temperature and CO2 concentration on the quasi-biennial oscillation2012

    • Author(s)
      Kawatani, Y., K. Hamilton and A. Noda
    • Journal Title

      J. Atmos. Sci

      Volume: 69 Pages: 1734-1749

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Sensitivity of the QBO to mean tropical upwelling under a changing climate simulated by an Earth system model2012

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

      J. Meteor. Soc. Japan

      Volume: 90A Pages: 351-360

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] A remarkable correlation between short period gravity waves and semiannual oscillation of the zonal wind in the equatorial mesopause region2012

    • Author(s)
      Narukull.V.Rao., T.Tsuda and Y. Kawatani
    • Journal Title

      Ann. Geophys.

      Volume: 30 Issue: 4 Pages: 703-710

    • DOI

      10.5194/angeo-30-703-2012

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] The effects of changes in sea surface temperature and CO2 concentration on the quasi-biennial oscillation2012

    • Author(s)
      Kawatani, Y., K. Hamilton and A. Noda
    • Journal Title

      J. Atmos. Sci.

      Volume: 69 Issue: 5 Pages: 1734-1749

    • DOI

      10.1175/jas-d-11-0265.1

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] 赤道準2年振動における赤道波と慣性内部重力波の役割 -2011年度山本正野論文賞受賞記念講演-2012

    • Author(s)
      河谷芳雄
    • Journal Title

      天気

      Volume: 59 Pages: 807-825

    • NAID

      110009518024

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Gravity wave characteristics in the Southern Hemisphere revealed by a high-resolution middle-atmosphere general circulation model2012

    • Author(s)
      Sato K., S. Tateno S. Watanabe, and Y. Kawatani
    • Journal Title

      J. Atmos. Sci.

      Volume: 69 Issue: 4 Pages: 1378-1396

    • DOI

      10.1175/jas-d-11-0101.1

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Growth of planetary waves and the formation of an elevated stratopause after a major stratospheric sudden warming in a T213L256 GCM2012

    • Author(s)
      Tomikawa Y., K. Sato, S. Watanabe, Y. Kawatani, K. Miyazaki, and M. Takahashi
    • Journal Title

      J. Geophys. Res.

      Volume: 117 Issue: D16

    • DOI

      10.1029/2011jd017243

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] The effects of changes in sea surface temperature and CO2 concentration on the quasi-biennial oscillation2012

    • Author(s)
      Yoshio Kawatani
    • Journal Title

      Journal of the Atmospheric Sciences

      Volume: in press

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] Sensitivity of the QBO to mean tropical upwelling under a changing climate simulated by an Earth system model2012

    • Author(s)
      Shingo Watanabe
    • Journal Title

      Journal of the Meteorological Society of Japan

      Volume: 90A Pages: 351-360

    • Related Report
      2011 Research-status Report
  • [Presentation] Interannual variations of stratospheric water vapor in MLS observations and climate model simulations2014

    • Author(s)
      河谷芳雄
    • Organizer
      PANSY meeting
    • Place of Presentation
      Tokyo, Japan
    • Year and Date
      2014-03-11
    • Related Report
      2013 Final Research Report
  • [Presentation] Weakening stratospheric quasibiennial oscillation and trends in tropical mean upwelling2014

    • Author(s)
      河谷芳雄
    • Organizer
      SPARC 2014 General Assembly
    • Place of Presentation
      Queenstown, New Zealand
    • Year and Date
      2014-01-16
    • Related Report
      2013 Final Research Report
  • [Presentation] Quasibiennial oscillation and tropical mean upwelling changes in observation and CMIP5 models2013

    • Author(s)
      河谷芳雄
    • Organizer
      International workshop on CMIP5 model intercomparisons for future projections of precipitation and climate in Asia
    • Place of Presentation
      Tsukuba, Japan
    • Year and Date
      2013-03-26
    • Related Report
      2013 Final Research Report
  • [Presentation] 種々のデータに現れた赤道準2年振動の変化2012

    • Author(s)
      河谷芳雄
    • Organizer
      研究集会「週間及び1か月予報における顕著現象の予測可能性」
    • Place of Presentation
      京都大学宇治キャンパス,宇治
    • Year and Date
      2012-11-21
    • Related Report
      2013 Final Research Report
  • [Presentation] Quasibiennial oscillation and tropical mean upwelling changes in observation and CMIP5 models2012

    • Author(s)
      Kawatani, Y. and K. Hamilton
    • Organizer
      International workshop on CMIP5 model intercomparisons for future projections of precipitation and climate in Asia
    • Place of Presentation
      Tsukuba International congress center, Japan
    • Related Report
      2012 Research-status Report
  • [Presentation] 種々のデータに現れた赤道準2年振動の変化2012

    • Author(s)
      河谷芳雄,Kevin Hamilton
    • Organizer
      第4回熱帯気象研究集会
    • Place of Presentation
      高知大学(高知県)
    • Related Report
      2012 Research-status Report
  • [Presentation] 種々のデータに現れた赤道準2年振動の変化2012

    • Author(s)
      河谷芳雄,Kevin Hamilton
    • Organizer
      日本気象学会2012年度秋季大会
    • Place of Presentation
      北海道大学(北海道)
    • Related Report
      2012 Research-status Report
  • [Presentation] 種々のデータに現れた赤道準2年振動の変化2012

    • Author(s)
      河谷芳雄,Kevin Hamilton
    • Organizer
      研究集会「週間及び1か月予報における顕著現象の予測可能性」
    • Place of Presentation
      京都大学(京都府)
    • Related Report
      2012 Research-status Report
  • [Presentation] 赤道準2年振動の変化と赤道域上昇流2012

    • Author(s)
      河谷芳雄,Kevin Hamilton
    • Organizer
      地球流体における流れのスケール間相互作用の力学
    • Place of Presentation
      東京大学(東京都)
    • Related Report
      2012 Research-status Report
  • [Presentation] 赤道準2年振動の将来変化に対する二酸化炭素濃度と海面水温の役割2011

    • Author(s)
      河谷芳雄,Kevin Hamilton,野田彰
    • Organizer
      日本気象学会2011年度秋季大会
    • Place of Presentation
      名古屋大学,名古屋
    • Year and Date
      2011-11-17
    • Related Report
      2013 Final Research Report
  • [Presentation] 気候モデルによる中間圏半年振動の再現性2011

    • Author(s)
      河谷芳雄
    • Organizer
      2011年度中間圏・熱圏・電離圏(MTI)研究会
    • Place of Presentation
      九州大学,福岡
    • Year and Date
      2011-08-30
    • Related Report
      2013 Final Research Report
  • [Presentation] The Quasi-biennial oscillation in a double CO2 climate2011

    • Author(s)
      河谷芳雄,Kawatani, Y., K. Hamilton and S. Watanabe
    • Organizer
      IUGG2011
    • Place of Presentation
      Melbourne, Australia
    • Year and Date
      2011-07-05
    • Related Report
      2013 Final Research Report
  • [Presentation] The Quasi-biennial oscillation in a double CO2 climate2011

    • Author(s)
      Yoshio Kawatani
    • Organizer
      IUGG2011
    • Place of Presentation
      オーストラリア・メルボルン
    • Related Report
      2011 Research-status Report
  • [Presentation] 地球温暖化時の赤道準2年振動2011

    • Author(s)
      河谷芳雄
    • Organizer
      地球惑星科学連合2011年度連合大会
    • Place of Presentation
      幕張メッセ
    • Related Report
      2011 Research-status Report
  • [Presentation] 気候モデルによる中間圏半年振動の再現性2011

    • Author(s)
      河谷芳雄
    • Organizer
      2011 年度中間圏・熱圏・電離圏(MTI)研究会
    • Place of Presentation
      九州大学箱崎キャンパス
    • Related Report
      2011 Research-status Report
  • [Presentation] 赤道準2年振動の将来変化に対する二酸化炭素濃度と海面水温の役割2011

    • Author(s)
      河谷芳雄
    • Organizer
      第3回熱帯気象研究集会
    • Place of Presentation
      京都大学吉田キャンパス
    • Related Report
      2011 Research-status Report
  • [Presentation] 赤道準2年振動の将来変化に対する二酸化炭素濃度と海面水温の役割2011

    • Author(s)
      河谷芳雄
    • Organizer
      日本気象学会2011年度秋季大会
    • Place of Presentation
      名古屋東山キャンパス
    • Related Report
      2011 Research-status Report
  • [Presentation] 赤道準2年振動の将来変化に対する二酸化炭素濃度と海面水温の役割2011

    • Author(s)
      河谷芳雄
    • Organizer
      第12回地球流体力学研究集会
    • Place of Presentation
      九州大学春日キャンパス
    • Related Report
      2011 Research-status Report
  • [Presentation] Interannual variations of stratospheric water vapor in MLS observation and climate model

    • Author(s)
      Yoshio Kawatani, Jae N. Lee and Kevin Hamilton
    • Organizer
      南極昭和基地大型大気レーダー計画( PANSY )研究集会
    • Place of Presentation
      東京大学本郷キャンパス,東京都
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] 成層圏で新たに発見された地球温暖化シグナル

    • Author(s)
      河谷芳雄
    • Organizer
      九州大学理学部地球惑星科学教室談話会
    • Place of Presentation
      九州大学箱崎キャンパス,福岡県
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] 複数のゾンデ観測及びCMIP5モデルに現れた赤道準2年振動の長期トレンド

    • Author(s)
      河谷芳雄、Kevin Hamilton
    • Organizer
      日本気象学会春季大会
    • Place of Presentation
      代々木オリンピックセンター,東京都
    • Related Report
      2013 Annual Research Report
  • [Presentation] 赤道準2年振動と赤道域上昇流の長期トレンド

    • Author(s)
      河谷芳雄、Kevin Hamilton
    • Organizer
      日本地球惑星科学連合大会2013
    • Place of Presentation
      幕張メッセ,千葉県
    • Related Report
      2013 Annual Research Report
  • [Presentation] 地球温暖化に伴う成層圏赤道準2年振動の変化

    • Author(s)
      河谷芳雄
    • Organizer
      気象庁講演会
    • Place of Presentation
      気象庁,東京都
    • Related Report
      2013 Annual Research Report
  • [Presentation] 熱帯成層圏における水蒸気の年々変動

    • Author(s)
      河谷芳雄、Kevin Hamilton、Jae N. Lee
    • Organizer
      地球流体力学研究集会
    • Place of Presentation
      九州大学応用力学研究所,福岡県
    • Related Report
      2013 Annual Research Report
  • [Presentation] Interannual variations of stratospheric water vapor in MLS observations and climate model

    • Author(s)
      Yoshio Kawatani, Jae N. Lee and Kevin Hamilton
    • Organizer
      Oxford AOPP seminar
    • Place of Presentation
      University of Oxford,英国
    • Related Report
      2013 Annual Research Report
  • [Presentation] Weakening stratospheric quasibiennial oscillation and trends in tropical mean upwelling

    • Author(s)
      Yoshio Kawatani and Kevin Hamilton
    • Organizer
      SPARC 2014 General Assembly
    • Place of Presentation
      クイーンズタウン,ニュージーランド
    • Related Report
      2013 Annual Research Report
  • [Remarks]

    • URL

      https://sites.google.com/site/yoshiokawatani/

    • Related Report
      2013 Final Research Report
  • [Remarks] Yoshio Kawatani

    • URL

      https://sites.google.com/site/yoshiokawatani/

    • Related Report
      2013 Annual Research Report

URL: 

Published: 2011-08-05   Modified: 2019-07-29  

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