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Can we predict an unprecedented disruption of the equatorial stratospheric circulation in 2016?

Research Project

Project/Area Number 17K18816
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Research Field Earth and planetary science and related fields
Research InstitutionJapan Agency for Marine-Earth Science and Technology

Principal Investigator

Kawatani Yoshio  国立研究開発法人海洋研究開発機構, 地球環境部門(環境変動予測研究センター), 主任研究員 (00392960)

Co-Investigator(Kenkyū-buntansha) 渡辺 真吾  国立研究開発法人海洋研究開発機構, 地球環境部門(環境変動予測研究センター), センター長代理 (50371745)
Project Period (FY) 2017-06-30 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2017: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords赤道準2年振動 / エルニーニョ / 海氷 / 中層大気
Outline of Final Research Achievements

The mechanism of the QBO disruption in 2016 was investigated by high-resolution atmospheric general circulation model with high vertical resolution. Extratropical Rossby waves propagating from mid-latitude stratosphere to low latitudes play crucial roles in forming the disruption. Ensemble experiments also implied the importance of El Nino and decreasing of sea ice on the disruption through making preferable condition for Rossby wave propagations. Tropical upwelling in the stratosphere is essential for upward propagation of QBO easterly in the middle stratosphere.

Academic Significance and Societal Importance of the Research Achievements

QBO位相の変化は、成層圏極渦の変調を引き起こし、中高緯度の地表面気圧配置やストームトラックの分布を変化させる為、QBOは季節予報にとっても重要な現象と認識されている。2016年に起きたQBO崩壊は、気象現象の正確な予測を追及する世界中の予報機関に大きな衝撃を与えた。2016年QBO崩壊現象は、その予測に世界各国の機関が失敗していた。本研究で明らかになったQBO崩壊メカニズムの解明及び数値モデルでの再現成功は今後の季節予報精度向上に貢献することで、科学的にも社会的にも大きな意義を有する。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (25 results)

All 2020 2019 2018 Other

All Int'l Joint Research (6 results) Journal Article (10 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 10 results,  Open Access: 10 results) Presentation (7 results) (of which Int'l Joint Research: 2 results) Remarks (2 results)

  • [Int'l Joint Research] オックスフォード大学(英国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] ハワイ大学(米国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] オックスフォード大学(英国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] ハワイ大学(米国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] オックスフォード大学(英国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] ハワイ大学(米国)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Response of the Quasi‐Biennial Oscillation to a warming climate in global climate models2020

    • Author(s)
      Richter, J.H., K. Yoshida et al.
    • Journal Title

      Quarterly Journal of the Royal Meteorological Society

      Volume: - Issue: 744 Pages: 1-29

    • DOI

      10.1002/qj.3749

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] QBO changes in CMIP6 climate projections2020

    • Author(s)
      Butchart Neal, Anstey James, Kawatani Yoshio, Osprey Scott, Richter Yadwiga, Wu Tongwen
    • Journal Title

      GEOPHYSICAL RESEARCH LETTERS

      Volume: - Issue: 7

    • DOI

      10.1029/2019gl086903

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Progress in simulating the Quasi-biennial Oscillation in CMIP models2020

    • Author(s)
      Richter Yadwiga, Anstey James, Butchart Neal, Yoshio Kawatani, Gerald A. Meehl, Scott Osprey, Isla R. Simpson
    • Journal Title

      JOURNAL OF GEOPHYSICAL RESEARCH - Atmospheres

      Volume: - Issue: 8

    • DOI

      10.1029/2019jd032362

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Evaluation of the Quasi‐Biennial Oscillation in global climate models for the SPARC QBO‐initiative2020

    • Author(s)
      Bushell, A.C., K. Yoshida et al.
    • Journal Title

      Quarterly Journal of the Royal Meteorological Society

      Volume: - Issue: 744 Pages: 1-31

    • DOI

      10.1002/qj.3765

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The equatorial stratospheric semiannual oscillation and time‐mean winds in QBOi models2020

    • Author(s)
      Smith, A. K, L. A. Holt, R. R. Garcia, J. A. Anstey, F. Serva, N. Butchart, S. Osprey, A. C. Bushell, Y. Kawatani, Y.‐H. Kim, F. Lott, P. Braesicke, C. Cagnazzo, C.‐C. Chen, H.‐Y. Chun, L. Gray, T. Kerzenmacher, H. Naoe, J. Richter, S. Versick, V. Schenzinger, S. Watanabe, and K. Yoshida
    • Journal Title

      Quarterly Journal of the Royal Meteorological Society

      Volume: - Issue: 744 Pages: 1-17

    • DOI

      10.1002/qj.3690

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] ENSO modulation of the QBO: Results from MIROC models with and without non-orographic gravity wave parameterization2019

    • Author(s)
      Kawatani, Y., K. Hamilton, K. Sato, T. J. Dunkerton, S. Watanabe and K. Kikuchi
    • Journal Title

      Journal of the Atmospheric Sciences

      Volume: 76 Issue: 12 Pages: 3893-3917

    • DOI

      10.1175/jas-d-19-0163.1

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The Effects of a Well-Resolved Stratosphere on the Simulated Boreal Winter Circulation in a Climate Model2019

    • Author(s)
      Kawatani Yoshio、Hamilton Kevin、Gray Lesley J.、Osprey Scott M.、Watanabe Shingo、Yamashita Yousuke
    • Journal Title

      Journal of the Atmospheric Sciences

      Volume: 76 Issue: 5 Pages: 1203-1226

    • DOI

      10.1175/jas-d-18-0206.1

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The influences of El Nino and Arctic sea-ice on the QBO disruption in February 20162018

    • Author(s)
      Hirota N.、Shiogama H.、Akiyoshi H.、Ogura T.、Takahashi M.、Kawatani Y.、Kimoto M.、Mori M.
    • Journal Title

      npj Climate and Atmospheric Science

      Volume: 1 Issue: 1

    • DOI

      10.1038/s41612-018-0020-1

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] First Successful Hindcasts of the 2016 Disruption of the Stratospheric Quasi-biennial Oscillation2018

    • Author(s)
      Watanabe S.、Hamilton K.、Osprey S.、Kawatani Y.、Nishimoto E.
    • Journal Title

      Geophysical Research Letters

      Volume: 45 Issue: 3 Pages: 1602-1610

    • DOI

      10.1002/2017gl076406

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The influences of El Nino and Arctic sea-ice on the QBO disruption in February 20162018

    • Author(s)
      Hirota, N., H. Shiogama, H. Akiyoshi, T. Ogura, M. Takahashi, Y. Kawatani, M. Kimoto and M. Mori
    • Journal Title

      npj Climate and Atmospheric Science

      Volume: -

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Hindcasts of the 2016 Disruption of the Stratospheric QBO2019

    • Author(s)
      Shingo Watanabe, Kevin Hamilton, Scott Osprey, Yoshio Kawatani, Eriko Nishimoto
    • Organizer
      日本地球惑星科学連合2019年大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Hindcasts of the 2016 Disruption of the Stratospheric Quasi-biennial Oscillation2019

    • Author(s)
      Shingo Watanabe, Kevin Hamilton, Scott Osprey, Yoshio Kawatani
    • Organizer
      DynVarMIP workshop on Atmospheric circulation in a changing climate
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 2015/2016年に生じた赤道成層圏準二年周期振動(QBO)崩壊イベント発生時の大気波動の振る舞いに ついて2019

    • Author(s)
      渡辺真吾, 河谷芳雄, Kevin Hamilton, Scott Osprey
    • Organizer
      日本気象学会2019年度秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Hindcasts of the 2016 Disruption of the Stratospheric QBO2018

    • Author(s)
      Shingo Watanabe, Kevin Hamilton, Scott Osprey, Yoshio Kawatani, Eriko Nishimoto
    • Organizer
      SPARC General Assembly 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Hindcasts of the 2016 Disruption of the Stratospheric QBO2018

    • Author(s)
      Shingo Watanabe, Kevin Hamilton, Scott Osprey, Yoshio Kawatani, Eriko Nishimoto
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Hindcasts of the 2016 Disruption of the Stratospheric QBO2018

    • Author(s)
      Shingo Watanabe, Kevin Hamilton, Scott Osprey, Yoshio Kawatani, Eriko Nishimoto
    • Organizer
      Asia Oceania Geosciences Society 15th Annual Meeting
    • Related Report
      2018 Research-status Report
  • [Presentation] 2015-2016年QBO崩壊イベントの再現実験2018

    • Author(s)
      渡邉真吾
    • Organizer
      対流圏・中層大気流体力学研究集会
    • Related Report
      2017 Research-status Report
  • [Remarks] Yoshio Kawatani

    • URL

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

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
  • [Remarks]

    • URL

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

    • Related Report
      2017 Research-status Report

URL: 

Published: 2017-07-21   Modified: 2022-02-22  

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