The Quasi-biennial Oscillation and Gravity Wave Modulation by the El Nino Southern Oscillation

• Project/Area Number: 18H01286
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 17020:Atmospheric and hydrospheric sciences-related
• Research Institution: Japan Agency for Marine-Earth Science and Technology
• Principal Investigator: 河谷 芳雄 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): 藤原 正智 北海道大学, 地球環境科学研究院, 准教授 (00360941) ; 高薮 縁 東京大学, 大気海洋研究所, 教授 (10197212) ; 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): 2018-04-01 – 2022-03-31
• Project Status: Completed (Fiscal Year 2021)
• Budget Amount: ¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000); Fiscal Year 2021: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2020: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2019: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2018: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
• Keywords: 赤道準2年振動 / エルニーニョ・南方振動

Outline of Annual Research Achievements

QBO気候モデル比較国際プロジェクト（QBOi）による国際共同研究を引き続き行った。今年度は気候モデルのQBO再現性と季節予報可能性に関する成果を論文として出版した（Anstey et al. 2021）。またQBOが引き起こす熱帯圏界面温度変調についても、研究を行った。QBOi第2期プロジェクトのコア実験の1つであるENSO-QBO実験を主導している。2021年中に計9機関の実験データがそろったマルチモデル解析の初期解析結果を、MIROC気候モデル結果（Kawatani et al. 2019）と合わせて、アメリカ気象学会第102回年会合で招待講演を行った。
引き続き国際的な全球大気再解析比較プロジェクト(S-RIP)にco-leadのひとりの立場(藤原)で参加し、最終報告書をWCRP/SPARCのReportseriesのひとつとして、2022年1月に出版した。また、複数の再解析データを用いて、成層圏循環の分析に利用される変形オイラー平均（TEM）運動方程式の各項について、季節変動、ENSO、QBO、太陽11年周期変動等それぞれに伴うシグナルを抽出し引き続き調べるとともに、大規模火山噴火に伴う成層圏循環の応答について引き続き調査した。また、TEM熱力学方程式の各項についても同様に調査した。
赤道域の重力波の波源のひとつに赤道Rossby波、赤道Kelvin波に結合した対流活動がある。衛星搭載降雨レーダ観測を用いた対流潜熱加熱推定値を初めて定量的に利用し、波―対流活動の結合過程において、前者はMoisture mode、後者はGravity wave modeが主要メカニズムであることを示した。また、降雨の３次元観測データを用いて、それぞれの波における対流活動のライフサイクルの違いを初めて直接的に明らかにした。

Research Progress Status

令和3年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和3年度が最終年度であるため、記入しない。

Research Products

• [Int'l Joint Research] ハワイ大学/NorthWest Research Associates/NASA(米国)
• [Int'l Joint Research] オックスフォード大学/イギリス大気科学センター(英国)
• [Int'l Joint Research] カナダ気象センター(カナダ)
• [Int'l Joint Research] ハワイ大学/NorthWest Research Associates/NASA(米国)
• [Int'l Joint Research] オックスフォード大学/イギリス大気科学センター(英国)
• [Int'l Joint Research] カナダ気象センター(カナダ)
• [Int'l Joint Research] ハワイ大学/NorthWest Research Associates/NASA(米国)
• [Int'l Joint Research] オックスフォード大学/イギリス国立大気科学センター(英国)
• [Int'l Joint Research] カナダ気象センター(カナダ)
• [Int'l Joint Research] オックスフォード大学/イギリス国立大気科学センター(英国)
• [Int'l Joint Research] ハワイ大学/NorthWest Research Associates/NASA(米国)
• [Int'l Joint Research] カナダ気象センター(カナダ)
• [Journal Article] SPARC Reanalysis Intercomparison Project (S-RIP) Final Report (2022)
  • Author(s): Masatomo Fujiwara, Gloria L. Manney, Lesley J. Gray, and Jonathon S. Wright
  • Journal Title: SPARC Report Volume: 10 Pages: 1-612
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Convective Couplings with Equatorial Rossby Waves and Equatorial Kelvin Waves. Part I: Coupled Wave Structures (2022)
  • Author(s): Y. NAKAMURA and Y. N. TAKAYABU:
  • Journal Title: Journal of the Atmospheric Sciences Volume: 79 Pages: 247-262
  • DOI: 10.1175/jas-d-21-0080.1
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Teleconnections of the quasi‐biennial oscillation in a multi‐model ensemble of <scp>QBO</scp> ‐resolving models (2021)
  • Author(s): J.A. Anstey, I. R. Simpson, J. H. Richter, H. Naoe, M. Taguchi, F. Serva, L. J. Gray, N. Butchart, K. Hamilton, S. Osprey, O. Bellprat, P. Braesicke, A. C. Bushell, C. Cagnazzo, C-C. Chen, H-Y .Chun, R. R. Garcia, L. Holt, Y. Kawatani, T. Kerzenmacher, Y-H. Kim, et al.
  • Journal Title: Quarterly Journal of the Royal Meteorological Society Volume: - Pages: 1568-1592
  • DOI: 10.1002/qj.4048
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Representation of the equatorial stratopause semiannual oscillation in global atmospheric reanalyses (2020)
  • Author(s): Kawatani Yoshio、Hirooka Toshihiko、Hamilton Kevin、Smith Anne K.、Fujiwara Masatomo
  • Journal Title: Atmospheric Chemistry and Physics Volume: 20 Pages: 9115-9133
  • DOI: 10.5194/acp-20-9115-2020
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Prediction of the quasi‐biennial oscillation with a multi‐model ensemble of QBO ‐resolving models (2020)
  • Author(s): Stockdale, T.N., Kim, Y.‐H., Anstey, J.A., Palmeiro, F.M., Butchart, N., Scaife, A.A., Andrews, M., Bushell, A.C., Dobrynin, M., Garcia‐Serrano, J., Hamilton, K., Kawatani, Y., Lott, F., McLandress, C., Naoe, H., Osprey, S., Pohlmann, H., Scinocca, J., Watanabe, S., Yoshida, K. and Yukimoto, S.
  • Journal Title: Q. J. R. Meteorol. Soc. Volume: 146 Pages: 1-22
  • DOI: 10.1002/qj.3919
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] An evaluation of tropical waves and wave forcing of the QBO in the QBOi models (2020)
  • Author(s): Holt, L.A., Lott, F., Garcia, R.R., Kiladis, G.N., et al. (13th Kawatani, Y., 25th Yoshida, K.)
  • Journal Title: Q. J. R. Meteorol. Soc. Volume: 146 Pages: 1-27
  • DOI: 10.1002/qj.3827
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The equatorial stratospheric semiannual oscillation and time‐mean winds in QBOi models (2020)
  • 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 Royal Meteorological Society Volume: - Pages: 1-17
  • DOI: 10.1002/qj.3690
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] 地球温暖化で成層圏大気の流れが変化 (2020)
  • Author(s): 河谷芳雄
  • Journal Title: Japan Geoscience Letters Volume: 16 Pages: 9-11
  • Peer Reviewed / Open Access
• [Journal Article] Response of the Quasi‐Biennial Oscillation to a warming climate in global climate models (2020)
  • Author(s): Richter, J.H., K. Yoshida et al.
  • Journal Title: QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY Volume: - Pages: 1-29
  • DOI: 10.1002/qj.3749
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] QBO changes in CMIP6 climate projections (2020)
  • Author(s): Butchart Neal, Anstey James, Kawatani Yoshio, Osprey Scott, Richter Yadwiga, Wu Tongwen
  • Journal Title: Geophysical Research Letters Volume: -
  • DOI: 10.1029/2019gl086903
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Evaluation of the Quasi‐Biennial Oscillation in global climate models for the SPARC QBO‐initiative (2020)
  • Author(s): Bushell, A.C., K. Yoshida et al.
  • Journal Title: QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY Volume: - Pages: 1-31
  • DOI: 10.1002/qj.3765
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Progress in simulating the Quasi-biennial Oscillation in CMIP models (2020)
  • 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: -
  • DOI: 10.1029/2019jd032362
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Representation of the equatorial stratopause semiannual oscillation in global atmospheric reanalyses (2020)
  • Author(s): Y. Kawatani, T. Hirooka, K. Hamilton, A. K. Smith, M. Fujiwara
  • Journal Title: ATMOSPHERIC CHEMISTRY AND PHYSICS DISCUSSION Volume: 20
  • DOI: 10.5194/acp-2020-73
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Surface temperature response to the major volcanic eruptions in multiple reanalysis data sets (2020)
  • Author(s): Fujiwara Masatomo、Martineau Patrick、Wright Jonathon S.
  • Journal Title: Atmospheric Chemistry and Physics Volume: 20 Pages: 345-374
  • DOI: 10.5194/acp-20-345-2020
  • NAID: 120006777925
  • 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 parameterization (2019)
  • 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 Pages: 3893-3917
  • DOI: 10.1175/jas-d-19-0163.1
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Comparison of equatorial wave activity in the tropical tropopause layer and stratosphere represented in reanalyses (2019)
  • Author(s): Young-Ha Kim, George Kiladis, John Albers, Juliana Dias, Masatomo Fujiwara, James Anstey, In-Sun Song, Corwin Wright, Yoshio Kawatani, Francois Lott, Changhyun Yoo
  • Journal Title: Atmospheric Chemistry and Physics Volume: 19 Pages: 10027-10050
  • DOI: 10.5194/acp-19-10027-2019
  • NAID: 120006770951
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Description and basic evaluation of simulated mean state, internal variability, and climate sensitivity in MIROC6 (2019)
  • Author(s): Tatebe Hiroaki, et al.
  • Journal Title: Geoscientific Model Development Volume: 12 Pages: 2727-2765
  • DOI: 10.5194/gmd-12-2727-2019
  • 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 Model (2019)
  • 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 Pages: 1203-1226
  • DOI: 10.1175/jas-d-18-0206.1
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Comparison of equatorial wave activity in the tropical tropopauselayer and stratosphere represented in reanalyses (2019)
  • Author(s): Kim Young-Ha、Kiladis George N.、Albers John R.、Dias Juliana、Fujiwara Masatomo、Anstey James A.、Song In-Sun、Wright Corwin J.、Kawatani Yoshio、Lott Fran?ois、Yoo Changhyun
  • Journal Title: Atmospheric Chemistry and Physics Discussions Volume: - Pages: 1-36
  • DOI: 10.5194/acp-2019-110
  • Open Access / Int'l Joint Research
• [Journal Article] Description and basic evaluation of simulated mean state, internal variability, and climate sensitivity in MIROC6 (2018)
  • Author(s): Tatebe Hiroaki and co-authors
  • Journal Title: Geoscientific Model Development Discussions Volume: - Pages: 1-92
  • DOI: 10.5194/gmd-2018-155
  • Open Access
• [Presentation] The Quasi-biennial Oscillation Modulation by the El Nino Southern Oscillation (2022)
  • Author(s): Yoshio Kawatani
  • Organizer: 102nd American Meteorological Society AnnualMeeting
  • Int'l Joint Research / Invited
• [Presentation] 上部対流圏－成層圏の温暖化レスポンス差が日本周辺の気候場に与える影響 (II) (2021)
  • Author(s): 河谷芳雄, 堀之内武, 佐藤尚毅
  • Organizer: 日本気象学会2021秋季大会
• [Presentation] 上部対流圏－成層圏の温暖化レスポンス差が日本周辺の気候場に与える影響 (2021)
  • Author(s): 河谷芳雄, 堀之内武, 佐藤尚毅
  • Organizer: 日本気象学会2021春季大会
• [Presentation] Impact of the upper troposphere and stratosphere on the climate change around Japan (2021)
  • Author(s): 河谷芳雄, 堀之内武, 佐藤尚毅
  • Organizer: Japan Geoscience Union Meeting 2021
• [Presentation] 大規模火山噴火にともなう成層圏子午面循環の変化 (2021)
  • Author(s): 藤原正智, Abalos M., Martineau P., Wright J.
  • Organizer: 日本気象学会2021春季大会
• [Presentation] 再解析データにおける大規模火山噴火にともなうブリューワー・ドブソン循環の応答 (2021)
  • Author(s): 藤原正智, Abalos M., Martineau P., Wright J.
  • Organizer: Japan Geoscience Union Meeting 2021
• [Presentation] Overview of the SPARC Reanalysis Intercomparison Project (S-RIP) during 2013-2021 (2021)
  • Author(s): Fujiwara, M., Manney, G. L., Gray, L. J., Wright, J. S., and the S-RIP team
  • Organizer: Joint WCRP-WWRP Symposium on Data Assimilation and Reanalysis
  • Int'l Joint Research
• [Presentation] Overview of the SPARC Reanalysis Intercomparison Project (S-RIP) during 2013-2021 (2021)
  • Author(s): Fujiwara, M., Manney, G. L., Gray, L. J., Wright, J. S., and the S-RIP team
  • Organizer: LAPAN-Kyoto University International Symposium for Equatorial Atmosphere, EAR 20th Anniversary
  • Int'l Joint Research / Invited
• [Presentation] SPARC Reanalysis Intercomparison Project (S-RIP): Status in 2021 (2021)
  • Author(s): Fujiwara, M., Manney, G. L., Gray, L. J., Wright, J. S., S-RIP chapter leads, and reanalysis center contacts
  • Organizer: AGU fall meeting 2021
  • Int'l Joint Research
• [Presentation] 赤道Kelvin波・Rossby波の結 合過程に関する統計解析 (2021)
  • Author(s): 中村雄飛、高藪縁
  • Organizer: 日本気象学会2021秋季大会
• [Presentation] 温暖化と大気の川と豪雨について：地球衛星観測による理解の進展 (2021)
  • Author(s): 高薮縁
  • Organizer: 日本海洋学会2021秋季大会
  • Invited
• [Presentation] A revisit on coupling mechanisms of convectively coupled equatorial Kelvin and Rossby waves (2021)
  • Author(s): Yuhi Nakamura and Yukari N. Takayabu
  • Organizer: AGU Fall Meeting
  • Int'l Joint Research
• [Presentation] Impact of the upper troposphere and stratosphere on the climate change around Japan (2021)
  • Author(s): Kawatani Yoshio, Horinouchi Takeshi, Sato Naoki
  • Organizer: International workshop 2021 of Drawing Storylines of Extraordinal Weather Phenomena around Japan for an Impact Assessment of the Climate Change
  • Int'l Joint Research
• [Presentation] Effects of the Atmospheric Rivers on Rainfall Characteristics and Their Implications for a Long-term Trend of Heavy Rainfalls (2021)
  • Author(s): Yukari N. Takayabu, Wataru Kaneko, and Hiroki Tsuji
  • Organizer: 34th Conference on Climate Variability and Change, AMS 101 Annual Meeting
  • Int'l Joint Research
• [Presentation] Stratospheric circulation changes associated with global warming (2020)
  • Author(s): Yoshio Kawatani
  • Organizer: JpGU-AGU joint Meeting 2020
  • Int'l Joint Research / Invited
• [Presentation] ENSO modulation of the Quasi-Biennial Oscillation (2020)
  • Author(s): Yoshio Kawatani
  • Organizer: Biweekly Webinar Series on Extreme Weather in Changing Climate in The Maritime Continent under JSPS
  • Int'l Joint Research
• [Presentation] Representation of the stratospheric semiannual oscillation in global reanalyses (2020)
  • Author(s): Yoshio Kawatani, Toshihiko Hirooka, Kevin Hamilton, Anne Smith, Masatomo Fujiwara
  • Organizer: JpGU-AGU joint Meeting 2020
  • Int'l Joint Research
• [Presentation] Overview of the SPARC ReanalysisIntercomparison Project (S-RIP) during 2013-2020 (2020)
  • Author(s): Masatomo Fujiwara, Gloria L. Manney, Lesley J. Gray,Jonathon S. Wright, James Anstey, Thomas Birner, Sean Davis, Edwin P. Gerber, V.Lynn Harvey, Michaela I. Hegglin, Cameron R. Homeyer, John A. Knox, Kirstin Krger,Alyn Lambert, Craig S. Long, Patrick Martineau(他12名)
  • Organizer: American Geophysical Union Fall Meeting 2020
  • Int'l Joint Research
• [Presentation] A statistical study of large-scale environment associated with extreme precipitation using AMeDAS and JRA55/ERA5 data (2020)
  • Author(s): Shibuya, R., Takayabu, Y. and ,Kamahori, H.
  • Organizer: JpGU-AGU joint Meeting
  • Int'l Joint Research
• [Presentation] 様々な時間スケールのアメダス極端降水量の季節・長期変動 ーENSOへの応答 (2020)
  • Author(s): 釜堀弘隆, 高薮縁, 横山千恵, 辻宏樹, 澁谷亮輔
  • Organizer: 2020年度日本気象学会秋季大会
• [Presentation] 西日本域の広域極端豪雨現象に伴う大規模循環場の統計的解析 (2020)
  • Author(s): 澁谷亮輔, 高薮縁, 釜堀弘隆
  • Organizer: 異常気象研究会2020
• [Presentation] Representation of the Semiannual Oscillation in Global Atmospheric Reanalyses (2020)
  • Author(s): Yoshio Kawatani, Hirooka Toshihiko, Hamilton Kevin, Smith Anne, Masatomo Fujiwara
  • Organizer: WCRP/SPARC SATIO-TCS joint workshop
  • Int'l Joint Research
• [Presentation] Representation of the Equatorial Stratopause Semiannual Oscillation in Global Atmospheric Reanalyses (2020)
  • Author(s): Yoshio Kawatani, Toshihiko Hirooka, Hamilton Kevin, Smith Anne K., Fujiwara Masatomo
  • Organizer: 2019年度PANSY研究集会
  • Int'l Joint Research
• [Presentation] ENSO modulation of the QBO: Results from MIROC models with and without non-orographic gravity wave parameterization (2020)
  • Author(s): Yoshio Kawatani, Kevin Hamilton, Kaoru Sato, Timothy J. Dunkerton, Shingo Watanabe, Kazuyoshi Kikuchi
  • Organizer: WCRP/SPARC SATIO-TCS joint workshop
  • Int'l Joint Research
• [Presentation] The Effects of a Well-Resolved Stratosphere on the Simulated Boreal Winter Circulation in a Climate Model (2019)
  • Author(s): Yoshio Kawatani, Hamilton Kevin, Gray Lesley J., Osprey Scott M., Shingo Watanabe, Yosuke Yamashita
  • Organizer: 27th International Union of Geodesy and Geophysics (IUGG) General Assembly
  • Int'l Joint Research / Invited
• [Presentation] The effects of a well-resolved stratosphere on the simulated boreal winter circulation in a climate model (2019)
  • Author(s): Yoshio Kawatani, Hamilton Kevin, Gray Lesley J., Ospery Scott M., Shingo Watanabe, Yosuke Yamashita
  • Organizer: RCAST special symposium on climate science with Prof. Hoskins
  • Int'l Joint Research / Invited
• [Presentation] 気候モデルを用いた成層圏・中間圏が対流圏循環場に及ぼす影響の考察 (2019)
  • Author(s): Yoshio Kawatani, Kevin Hamilton, Lesley J. Gray, Scott M. Osprey, Shingo Watanabe, Yosuke Yamashita
  • Organizer: 日本気象学会2019年度春季大会
• [Presentation] The Effects of a Well-Resolved Stratosphere on the Simulated Boreal Winter Circulation in a Climate Model (2019)
  • Author(s): Yoshio Kawatani, Hamilton Kevin, Gray Lesley J., Osprey Scott M., Shingo Watanabe, Yosuke Yamashita
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] Hindcasts of the 2016 Disruption of the Stratospheric QBO (2019)
  • 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
• [Presentation] Hindcasts of the 2016 Disruption of the Stratospheric Quasi-biennial Oscillation (2019)
  • Author(s): Shingo Watanabe, Kevin Hamilton, Scott Osprey, Yoshio Kawatani
  • Organizer: DynVarMIP workshop on Atmospheric circulation in a changing climate
  • 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): Shingo Watanabe, Yoshio Kawatani, Kevin Hamilton, Scott Osprey
  • Organizer: 日本気象学会2019年度秋季大会
• [Presentation] 太平洋地域のAtmospheric Riverと対流圏上層ジェットの蛇行との関係 (2019)
  • Author(s): 金子航、高薮縁、辻宏樹
  • Organizer: 日本気象学会2019年度秋季大会
• [Presentation] The Effect of Upper-tropospheric Jet for Atmospheric Rivers and Precipitation in Pacific Region (2019)
  • Author(s): W. KANEKO and Y. N. TAKAYABU
  • Organizer: 2019 University Allied Workshop on Climate and Extreme Weather, Chiba, Japan
• [Presentation] 成層圏が対流圏循環に及ぼす影響：MIROC-AGCMモデルを用いた考察 (2019)
  • Author(s): Kawatani Yoshio、Hamilton Kevin、Gray Lesley J.、Osprey Scott M.、Watanabe Shingo、Yamashita Yousuke
  • Organizer: 地球流体力学研究集会
• [Presentation] The Quasi-biennial Oscillation Modulation by the El Nino Southern Oscillation (2018)
  • Author(s): Kawatani, Y., K. Hamilton, K. Sato, T. J. Dunkerton, S. Watanabe, K. Kikuchi
  • Organizer: 日本地球惑星科学連合2018年大会
• [Presentation] The Quasi-biennial Oscillation Modulation by the El Nino Southern Oscillation (2018)
  • Author(s): Kawatani, Y., K. Hamilton, K. Sato, T. J. Dunkerton, S. Watanabe, K. Kikuchi
  • Organizer: Asia Oceania Geosciences Society 15th Annual Meeting
  • Int'l Joint Research / Invited
• [Presentation] ENSO modulation of the QBO: Results from MIROC models with and without nonstationary gravity wave parameterization (2018)
  • Author(s): Kawatani, Y., K. Hamilton, K. Sato, T. J. Dunkerton, S. Watanabe, K. Kikuchi
  • Organizer: SPARC General Assembly 2018
  • Int'l Joint Research
• [Presentation] The Effects of a Well-Resolved Stratosphere on the Simulated Boreal Winter Circulation in a Climate Model (2018)
  • Author(s): Kawatani Yoshio、Hamilton Kevin、Gray Lesley J.、Osprey Scott M.、Watanabe Shingo、Yamashita Yousuke
  • Organizer: AGU fall meeting 2018
  • Int'l Joint Research
• [Presentation] 過去の大規模火山噴火にともなう全球地表気温の変化 (2018)
  • Author(s): 藤原正智, Patrick Martineau, Jonathon Wright
  • Organizer: 日本気象学会2018年度秋季大会
• [Presentation] Surface temperature response to the major volcanic eruptions in multiple reanalysis data sets (2018)
  • Author(s): Fujiwara, M., P. Martineau, J. Wright
  • Organizer: AGU fall meeting 2018
• [Presentation] Hindcasts of the 2016 Disruption of the Stratospheric QBO (2018)
  • 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
• [Presentation] Hindcasts of the 2016 Disruption of the Stratospheric QBO (2018)
  • Author(s): Shingo Watanabe, Kevin Hamilton, Scott Osprey, Yoshio Kawatani, Eriko Nishimoto
  • Organizer: SPARC General Assembly 2018
  • Int'l Joint Research
• [Presentation] Hindcasts of the 2016 Disruption of the Stratospheric QBO (2018)
  • Author(s): Shingo Watanabe, Kevin Hamilton, Scott Osprey, Yoshio Kawatani, Eriko Nishimoto
  • Organizer: Asia Oceania Geosciences Society 15th Annual Meeting
  • Int'l Joint Research
• [Presentation] 対流と結合した赤道Kelvin波・赤道Rossby波の構造と降水特性に関する統計的研究 (2018)
  • Author(s): 中村雄飛、高薮縁
  • Organizer: 日本気象学会2018年度秋季大会
• [Remarks] Yoshio Kawatani
  • URL: https://sites.google.com/site/yoshiokawatani/
• [Remarks] Masatomo Fujiwara
  • URL: http://wwwoa.ees.hokudai.ac.jp/~fuji/index_jp.html
• [Remarks] 高薮研究室
  • URL: https://ccsr.aori.u-tokyo.ac.jp/~takayabu/index-j.html
• [Remarks] Shingo Watanabe
  • URL: https://www.researchgate.net/profile/Shingo-Watanabe
• [Remarks] Yoshio Kawatani
  • URL: https://sites.google.com/site/yoshiokawatani/home
• [Remarks] 高薮研究室
  • URL: http://ccsr.aori.u-tokyo.ac.jp/~takayabu/index-j.html