Stratosphere-troposphere dynamical coupling processes in the tropics

2019 Fiscal Year Annual Research Report

• Project/Area Number: 17H01159
• Research Institution: Kyoto University
• Principal Investigator: 余田 成男 京都大学, 理学研究科, 教授 (30167027)
• Co-Investigator(Kenkyū-buntansha): 石岡 圭一 京都大学, 理学研究科, 准教授 (90292804) ; 廣岡 俊彦 九州大学, 理学研究院, 教授 (90253393) ; 水田 亮 気象庁気象研究所, 気候研究部, 主任研究官 (80589862)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Keywords: 成層圏 / 対流圏 / 力学結合 / 熱帯

Outline of Annual Research Achievements

研究体制は、研究手法をもとに、理論・力学モデル班、データ解析班、現業的応用実験班、からなる3班体制とし、各班が密接に連携をして、階層的数値モデル群を駆使した系統的実験、得られたデータを基にした理論構築、新理論に基づく観測解析データ・モデル出力データのデータ解析を実施し、熱帯域における湿潤対流を駆動源とした成層圏-対流圏結合変動について、現象の記述と力学過程の理解から最先端モデルによる将来予測までの総合的研究を推進した。各班の2019年度の研究実績は以下の通りである:
(1)理論・力学モデル班: 3次元領域気象モデルを長期間時間積分して降水システムの自己組織化について調べた。成層圏においてQBO的振動が起こり、それが対流圏に伝播して降水パターンに影響を与えること, および自己組織化には乱流混合パラメタリゼーションが大きく影響することが示された。全球メカニスティック大気モデルを用いた研究では, 傾圧擾乱の準周期的変動に対応する不安定周期軌道を求めることに成功した。
(2)データ解析班: 複数の再解析データ間の相違について赤道域を中心に調べた。気象庁長期再解析データ(JRA-55)を用いて、北半球冬季におけるプラネタリー波束の下方伝播の統計的解析を行った。JRA-55と全球非静力学モデルを用いて、2010年1月の成層圏突然昇温(SSW)時の成層圏力学変化による熱帯積雲対流活動と赤道波への影響を解析した。複数数値予報モデルによる季節内・季節予報データを用いて、約10個のSSWに対する予報特性を統計的に概観した。
(3)現業的応用実験班: 準二年周期振動を再現できる気象研究所地球システムモデルなどを用いた実験について、再解析データとともに解析し、成層圏から対流圏への下方影響について調べた。成層圏突然昇温の際、熱帯では成層圏だけでなく対流圏でも上昇流が引き起こされ、対流圏の温度上昇や対流活動の強化が見られることを示した。

Research Progress Status

令和元年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和元年度が最終年度であるため、記入しない。

Research Products

• [Int'l Joint Research] ストックホルム大学(スウェーデン)
  • Country Name: SWEDEN
  • Counterpart Institution: ストックホルム大学
• [Int'l Joint Research] ベルゲン大学(ノルウェー)
  • Country Name: NORWAY
  • Counterpart Institution: ベルゲン大学
• [Int'l Joint Research] インド工科大学デリー校/デリー大学(インド)
  • Country Name: INDIA
  • Counterpart Institution: インド工科大学デリー校/デリー大学
• [Int'l Joint Research] ケンブリッジ大学(英国)
  • Country Name: UNITED KINGDOM
  • Counterpart Institution: ケンブリッジ大学
• [Int'l Joint Research] ウィスコンシン大学マディソン校(米国)
  • Country Name: U.S.A.
  • Counterpart Institution: ウィスコンシン大学マディソン校
• [Int'l Joint Research]
  • # of Other Countries: 2
• [Journal Article] Verification of subseasonal-to-seasonal forecasts for major stratospheric sudden warmings in northern winter from 1998/99 to 2012/13 (2020)
  • Author(s): M. Taguchi
  • Journal Title: Advances in Atmospheric Sciences Volume: 37 Pages: 250-258
  • DOI: 10.1007/s00376-019-9195-6
  • Peer Reviewed / Open Access
• [Journal Article] The equatorial stratospheric semiannual oscillation and time-mean winds in QBOi models (2020)
  • Author(s): A. K. Smith, L. A. Holt, R. R. Garcia, J. A. Anstey, F. Serva, N. Butchart, S. M. 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, K. Yoshida
  • Journal Title: Quarterly Journal of Royal Meteorological Society Volume: 146 Pages: 1-17
  • DOI: 10.1002/qj.3690
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Tropical water vapour in the lower stratosphere in ERA5 and its relationship to tropical/extra-tropical dynamical processes (2020)
  • Author(s): T. Wang, Q. Zhang, A. Hannachi, T. Hirooka, M. Hegglin
  • Journal Title: Quarterly Journal of Royal Meteorological Society Volume: 146 Pages: 印刷中
  • DOI: 10.1002/qj.3801
  • 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 Discussions Volume: 20 Pages: -
  • DOI: 10.5194/acp-2020-73
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] 2019年南半球成層圏突然昇温の熱帯対流圏への影響 (2020)
  • Author(s): 小寺邦彦
  • Journal Title: 京都大学防災研究所「異常気象の発現メカニズムと大規模大気海洋変動の複合過程」研究集会報告 Volume: - Pages: 印刷中
  • Open Access
• [Journal Article] 台風の発達過程への成層圏力学場の影響 (2020)
  • Author(s): 江口菜穂, 那須野智江, 小寺邦彦
  • Journal Title: 京都大学防災研究所「異常気象の発現メカニズムと大規模大気海洋変動の複合過程」研究集会報告 Volume: - Pages: 印刷中
  • Open Access
• [Journal Article] 成層圏におけるプラネタリー波束の下方伝播について (2020)
  • Author(s): 松山裕矢, 廣岡俊彦
  • Journal Title: 京都大学防災研究所「異常気象の発現メカニズムと大規模大気海洋変動の複合過程」研究集会報告 Volume: - Pages: 印刷中
  • Open Access
• [Journal Article] Evaluation of the Quasi‐Biennial Oscillation in global climate models for the SPARC QBO‐initiative (2020)
  • Author(s): Bushell, A.C., Anstey, J.A., Butchart, N., Kawatani, (他14名), C., Naoe, (他5名), S., Yoshida, K. and Yukimoto, S
  • Journal Title: Quarterly Journal of the Royal Meteorological Society Volume: - Pages: 1-31
  • DOI: 10.1002/qj.3765
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Response of the Quasi‐Biennial Oscillation to a warming climate in global climate models (2020)
  • Author(s): Richter, J.H., Butchart, N., Kawatani, (他15名), C., Naoe, H., Scinocca, J., Stockdale, T.N., Versick, S., Watanabe, S., Yoshida, K. and Yukimoto, S.
  • Journal Title: Quarterly Journal of the Royal Meteorological Society Volume: - Pages: 1-29
  • DOI: 10.1002/qj.3749
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Impact of satellite observations on forecasting sudden stratospheric warmings (2020)
  • Author(s): Noguchi, S., Y. Kuroda, H. Mukougawa, R. Mizuta, and C. Kobayashi
  • Journal Title: Geophysical Research Letters Volume: 47 Pages: -
  • DOI: 10.1029/2019GL086233
  • Peer Reviewed / Open Access
• [Journal Article] Uncertainty in the response of sudden stratospheric warmings and stratosphere-troposphere coupling to quadrupled CO2 concentrations in CMIP6 models (2020)
  • Author(s): B. Ayarzagena, A. J. Charlton-Perez, A. H. Butler, P. Hitchcock, I. R. Simpson, L. M. Polvani, N. Butchart, E. P. Gerber, L. Gray, B. Hassler, P. Lin, F. Lott, E. Manzini, R. Mizuta, C. Orbe, S. Osprey, D. Saint-Martin, M. Sigmond, M. Taguchi, E. M. Volodin, and S. Watanabe
  • Journal Title: Journal of Geophysical Research Volume: 25 Pages: -
  • DOI: 10.1029/2019JD032345
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Diagnostics of a WN2-type major sudden stratospheric warming event in February 2018 using a new three-dimensional wave activity flux (2019)
  • Author(s): Y. Harada, K. Sato, T. Kinoshita, R. Yasui, T. Hirooka, H. Naoe
  • Journal Title: Journal of Geophysical Research: Atmospheres Volume: 124 Pages: 6120-6142
  • DOI: 10.1029/2018JD030162
  • Peer Reviewed / Open Access
• [Journal Article] Primary factors behind the heavy rain event of July 2018 and the subsequent heat wave in Japan (2019)
  • Author(s): A. Shimpo, K. Takemura, S. Wakamatsu, H. Togawa, Y. Mochizuki, M. Takekawa, S. Tanaka, K. Yamashita, S. Maeda, R. Kurora, H. Murai, N. Kitabatake, H. Tsuguti, H. Mukougawa, T. Iwasaki, R. Kawamura, M. Kimoto, I. Takayabu, Y. N. Takayabu, Y. Tanimoto, T. Hirooka, Y. Masumoto, M. Watanabe, K. Tsuboki, H. Nakamura
  • Journal Title: SOLA Volume: 15A Pages: 13-18
  • DOI: 10.2151/sola.15A-003
  • Peer Reviewed / Open Access
• [Journal Article] On the dynamics of the spring seasonal transition in the two hemispheric high-latitude stratosphere (2019)
  • Author(s): T. Wang, Q. Zhang, A. Hannachi, Y. Lin, T. Hirooka
  • Journal Title: Tellus A: Dynamic Meteorology and Oceanography Volume: 71 Pages: 1-18
  • DOI: 10.1080/16000870.2019.1634949
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] MRI-ESM2.0: Description and basic evaluation of the physical component (2019)
  • Author(s): Yukimoto, S., H. Kawai, T. Koshiro, N. Oshima, K. Yoshida, S. Urakawa, H. Tsujino, M. Deushi, T. Tanaka, M. Hosaka, S. Yabu, H. Yoshimura, E. Shindo, R. Mizuta, A. Obata, Y. Adachi, and M. Ishii
  • Journal Title: Journal of the Meteorological Society of Japan Volume: 97 Pages: 931-965
  • DOI: 10.2151/jmsj.2019-051
  • Peer Reviewed / Open Access
• [Journal Article] Clear-sky ultraviolet radiation modelling using output from the Chemistry Climate Model Initiative (2019)
  • Author(s): Lamy, K.,(他21名), G., Deushi, (他16名), and Yoshida, K.
  • Journal Title: Atmospheric Chemistry and Physics Volume: 19 Pages: 10087-10110
  • DOI: 10.5194/acp-19-10087-2019
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Influences of quasi-biennial oscillation on the boreal winter extratropical stratosphere in QBOi experiments (2019)
  • Author(s): Naoe, H. and K. Yoshida
  • Journal Title: Quarterly Journal of the Royal Meteorological Society Volume: - Pages: 1-17
  • DOI: 10.1002/qj.5910
  • Peer Reviewed
• [Journal Article] Contributing Factors to Spatiotemporal Variations of Outgoing Longwave Radiation (OLR) in the Tropics (2019)
  • Author(s): Faiz R. Fajary, Tri W. Hadi, Shigeo Yoden
  • Journal Title: JOURNAL OF CLIMATE Volume: 32 Pages: 4621-4640
  • DOI: 10.1175/JCLI-D-18-0350.1
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Time-lagged correlations associated with interannual variations of pre-monsoon and post-monsoon precipitation in Myanmar and the Indochina Peninsula (2019)
  • Author(s): Chhin, Rattana. Shwe, Myint M. Yoden, Shigeo
  • Journal Title: INTERNATIONAL JOURNAL OF CLIMATOLOGY Volume: 107 Pages: 1-21
  • DOI: 10.1002/joc.6428
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Consideration on impacts of SSW on the tropical troposphere through modulation of stratospheric mean meridional circulation (2020)
  • Author(s): K. Kodera
  • Organizer: WCRP/SPARC SATIO-TCS Joint Workshop
  • Int'l Joint Research / Invited
• [Presentation] Stratospheric dynamical influence on tropical cyclone and equatorial waves (2020)
  • Author(s): N. Eguchi, T. Nasuno, K. Kodera
  • Organizer: WCRP/SPARC SATIO-TCS Joint Workshop
  • Int'l Joint Research
• [Presentation] Representation of the semiannual oscillation in global atmospheric reanalyses (2020)
  • Author(s): Y. Kawatani, T. Hirooka, K. Hamilton, A. K. Smith, M. Fujiwara
  • Organizer: WCRP/SPARC SATIO-TCS Joint Workshop
  • Int'l Joint Research
• [Presentation] Downward propagation of planetary wave packets to the troposphere during the Northern Hemisphere winter (2020)
  • Author(s): Y. Matsuyama, T. Hirooka
  • Organizer: WCRP/SPARC SATIO-TCS Joint workshop
  • Int'l Joint Research
• [Presentation] Climatology of traveling and stationary planetary waves in the Northern Hemisphere winter middle atmosphere (2020)
  • Author(s): K. Iwao, T. Hirooka
  • Organizer: WCRP/SPARC SATIO-TCS Joint workshop
  • 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): Y. Kawatani, K. Hamilton, K. Sato, T. J. Dunkerton, S. Watanabe, K. Kikuchi
  • Organizer: WCRP/SPARC SATIO-TCS Joint Workshop
  • Int'l Joint Research
• [Presentation] Downward extension of QBO-related zonal wind anomalies to the troposphere (2020)
  • Author(s): M. Taguchi
  • Organizer: WCRP/SPARC SATIO-TCS joint workshop
  • Int'l Joint Research
• [Presentation] 南極域オゾンホールと力学場の関係～2017年と2019年の事例の比較 (2020)
  • Author(s): 劉光宇, 廣岡俊彦, 江口菜穂
  • Organizer: 第41回日本気象学会九州支部発表会
• [Presentation] 成層圏におけるプラネタリー波の下方伝播ついて (2020)
  • Author(s): 松山裕矢, 廣岡俊彦
  • Organizer: 第41回日本気象学会九州支部発表会
• [Presentation] 2019年の南半球での成層圏突然昇温の特徴とオゾンホール (2020)
  • Author(s): 本田淳一, 廣岡俊彦
  • Organizer: 第41回日本気象学会九州支部発表会
• [Presentation] 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
  • Organizer: 2019年度PANSY研究集会
• [Presentation] Projected changes in extreme precipitation in a 60-km AGCM large ensemble and their dependence on return periods (2020)
  • Author(s): Mizuta, R.
  • Organizer: WCRP/SPARC SATIO-TCS joint workshop on Stratosphere-Troposphere Dynamical Coupling in the Tropics
  • Int'l Joint Research
• [Presentation] Do sudden stratospheric warmings boost convective activity in the tropics? (2020)
  • Author(s): Yoshida, K.
  • Organizer: WCRP/SPARC SATIO-TCS joint workshop on Stratosphere-Troposphere Dynamical Coupling in the Tropics
  • Int'l Joint Research
• [Presentation] Solar influence on climate with MRI-ESM2.0 and its behavior in CMIP6 simulations,PSTEP-4 & ISEE-2 International Symposium,2020,2020,0,1 (2020)
  • Author(s): Yoshida, K.
  • Organizer: PSTEP-4 & ISEE-2 International Symposium
• [Presentation] Reports on PSTEP-A04 group activity: Prediction and understanding of solar cycle activity and its impact on climate (2020)
  • Author(s): Shigeo Yoden
  • Organizer: The 4th PSTEP International Symposium (PSTEP-4) and the 2nd ISEE Symposium
  • Int'l Joint Research
• [Presentation] Influence of QBO-like Oscillations on Aggregation of Moist-Convective Systems in a Three-Dimensional Minimal Model Framework (2020)
  • Author(s): Shigeo Yoden, Takahiro Banno and Hai Hoang Bui
  • Organizer: WCRP/SPARC SATIO-TCS joint workshop
  • Int'l Joint Research
• [Presentation] 球面調和関数変換ライブラリの高速化について (2020)
  • Author(s): 石岡圭一
  • Organizer: AORIセミナー
  • Invited
• [Presentation] ISPACK3について (2020)
  • Author(s): 石岡圭一
  • Organizer: dcmodelミーティング
• [Presentation] 成層圏におけるプラネタリー波束下方伝播の統計的解析 (2019)
  • Author(s): 松山裕矢, 廣岡俊彦
  • Organizer: 日本気象学会2019年度春季大会
• [Presentation] Tropical water vapor in the lower stratosphere and its relationship to tropical/extratropical processes (2019)
  • Author(s): T. Wang, Q. Zhang, A. Hannachi, T. Hirooka, M. I. Hegglin
  • Organizer: EC-Earth meeting 2019
  • Int'l Joint Research
• [Presentation] 新しい3次元波活動度フラックスを用いた2018年2月北半球大規模突然昇温の解析結果 (2019)
  • Author(s): 原田やよい, 佐藤薫，木下武也，安井良輔，廣岡俊彦，直江寛明
  • Organizer: 日本地球惑星科学連合2019年大会
  • Invited
• [Presentation] 成層圏から対流圏へのプラネタリー波束の下方伝播について (2019)
  • Author(s): 松山裕矢, 廣岡俊彦
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] 2009年11月の南米南端におけるオゾン量低下イベントに関する解析 (2019)
  • Author(s): 秋吉英治, 門脇正尚, 中村東奈, 杉田考史, 原田やよい, 廣岡俊彦, 水野亮
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] Influence of tropical lower stratospheric cooling on extreme deep convective activity and tropical cyclones (2019)
  • Author(s): K. Kodera, N. Eguchi, R. Ueyama, B. M. Funatsu, C. Cloud
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] A study of predictability of major stratospheric sudden warmings using the subseasonal-to-seasonal prediction project database (2019)
  • Author(s): M. Taguchi
  • Organizer: 27th IUGG General Assembly
  • Int'l Joint Research
• [Presentation] Downward propagation of planetary wave packets fromthe stratosphere to the troposphere during Northern Hemisphere winter (2019)
  • Author(s): T. Hirooka, Y. Matsuyama
  • Organizer: Asia Oceania Geosciences Society 16th Annual Meeting
  • Int'l Joint Research
• [Presentation] Influence of tropical lower stratospheric cooling on extreme deep convective activity and tropical cyclones (2019)
  • Author(s): K. Kodera, N. Eguchi, R. Ueyama, B. M. Funatsu, C. Cloud
  • Organizer: Asia Oceania Geosciences Society 16th Annual Meeting
  • Int'l Joint Research / Invited
• [Presentation] Downward propagation of planetary wave packets from the stratosphere to the troposphere during the Northern Hemisphere winter (2019)
  • Author(s): Y. Matsuyama, T. Hirooka
  • Organizer: European Meteorological Society (EMS) Annual Meeting 2019
  • Int'l Joint Research
• [Presentation] Interactions between planetary waves and mean circulations in the middle atmosphere during the Northern Hemisphere winter (2019)
  • Author(s): K. Iwao, T. Hirooka
  • Organizer: European Meteorological Society (EMS) Annual Meeting 2019
  • Int'l Joint Research
• [Presentation] Downward propagation of planetary wave packets to the troposphere during the Northern Hemisphere winter (2019)
  • Author(s): Y. Matsuyama, T. Hirooka
  • Organizer: DynVarMIP/CMIP6 and SPARC DynVar & SNAP Workshop
  • Int'l Joint Research
• [Presentation] 成層圏におけるプラネタリー波束下方伝播の統計的解析(II) (2019)
  • Author(s): 松山裕矢, 廣岡俊彦
  • Organizer: 日本気象学会2019年度秋季大会
• [Presentation] 南極域におけるオゾン全量変動と力学場の関係について (2019)
  • Author(s): 劉光宇, 廣岡俊彦, 江口菜穂
  • Organizer: 日本気象学会2019年度秋季大会
• [Presentation] 赤道台風Vameiに対する対流圏界面気温の役割 (2019)
  • Author(s): 小寺邦彦, 江口菜穂
  • Organizer: 日本気象学会2019年度秋季大会
• [Presentation] 2019年南半球成層圏突然昇温の熱帯対流圏への影響 (2019)
  • Author(s): 小寺邦彦
  • Organizer: 京都大学防災研究所「異常気象の発現メカニズムと大規模大気海洋変動の複合過程」研究集会
• [Presentation] 台風の発達過程への成層圏力学場の影響 (2019)
  • Author(s): 江口菜穂, 那須野智江, 小寺邦彦
  • Organizer: 京都大学防災研究所「異常気象の発現メカニズムと大規模大気海洋変動の複合過程」研究集会
• [Presentation] 成層圏におけるプラネタリー波束の下方伝播について (2019)
  • Author(s): 松山裕矢, 廣岡俊彦
  • Organizer: 京都大学防災研究所「異常気象の発現メカニズムと大規模大気海洋変動の複合過程」研究集会
• [Presentation] 熱帯低気圧発達に対する成層圏循環の影響 (2019)
  • Author(s): 小寺邦彦, 江口菜穂
  • Organizer: 2019年度台風研究会
• [Presentation] Relationship between traveling and stationary planetary waves in the Northern Hemisphere winter middle atmosphere (2019)
  • Author(s): T. Hirooka, K. Iwao
  • Organizer: 2019 AGU Fall Meeting
  • Int'l Joint Research
• [Presentation] Role of extreme deep convection on recent decadal tropical change (2019)
  • Author(s): K. Kodera, N. Eguchi, R. Ueyama, B. M. Funatsu, C. Cloud
  • Organizer: 2019 AGU Fall Meeting
  • Int'l Joint Research
• [Presentation] Influence of stratospheric dynamics on deep convection and equatorial waves. (2019)
  • Author(s): N. Eguchi, T. Nasuno, K. Kodera
  • Organizer: 2019 AGU Fall Meeting
• [Presentation] 極端降水将来変化の再現期間・時間スケールによる違い (2019)
  • Author(s): 水田亮
  • Organizer: 日本気象学会2019年度秋季大会
• [Presentation] Do sudden stratospheric warmings boost convective activity in the tropics?,Workshop: Stratospheric predictability and impact on the troposphere,2019,2019,0,1 (2019)
  • Author(s): Yoshida, K.
  • Organizer: Workshop: Stratospheric predictability and impact on the
• [Presentation] Sudden Stratospheric Warming Influence on the Tropical Troposphere with High Resolution Large Ensemble Simulations (2019)
  • Author(s): Yoshida, K. and R. Mizuta
  • Organizer: AOGS 16th Annual Meeting
  • Int'l Joint Research / Invited
• [Presentation] Influence of Sudden Stratospheric Warmings on the Tropical Troposphere with High Resolution Large Ensemble Simulations (2019)
  • Author(s): Yoshida, K. and R. Mizuta
  • Organizer: 27th General Assembly of the International Union of Geodesy and Geophysics
  • Int'l Joint Research
• [Presentation] 成層圏突然昇温は熱帯の対流を促進するか？ (2019)
  • Author(s): 吉田康平
  • Organizer: 異常気象研究会2019「異常気象の発現メカニズムと大規模大気海洋変動の複合過程」
• [Presentation] Relationship between the Boreal Summer Intra-seasonal Oscillation and the stratospheric Quasi-Biennial Oscillation (2019)
  • Author(s): 原田やよい
  • Organizer: 27th IUGG General Assembly
  • Int'l Joint Research
• [Presentation] 成層圏準2年周期振動と北半球夏季季節内振動との関係 (2019)
  • Author(s): 原田やよい
  • Organizer: 日本気象学会2019年度秋季大会
• [Presentation] Subseasonal Hindcast Experiments with Different Treatment on Ozone Chemistry and Radiation Processes after Major Sudden Stratospheric Warming Events (2019)
  • Author(s): M. Deushi
  • Organizer: AGU Fall Meeting
  • Int'l Joint Research
• [Presentation] 北半球冬季における成層圏オゾン変動が季節内スケールの対流圏循環に及ぼす影響 (2019)
  • Author(s): 出牛真
  • Organizer: 異常気象研究会2019・第7回観測システム・予測可能性研究連絡会
• [Presentation] QBO-like Oscllaction in a Three-Dimensional Minimal Model Framework of the Stratosphere-Troposphere Coupled System (2019)
  • Author(s): Shigeo Yoden, Hoang-Hai Bui and Eriko Nishimoto
  • Organizer: EGU General Assembly 2019
  • Int'l Joint Research
• [Presentation] Numerical Experiments on Stratosphere-Troposphere Two-Way Dynamical Coupling in the Tropics through Organizations of Moist Convective Systems (2019)
  • Author(s): Shigeo Yoden, Hai Bui, Takahiro Banno
  • Organizer: JpGU 2019 (English session)
  • Int'l Joint Research
• [Presentation] Influence of QBO-like Oscllaction in a Three-Dimensional Minimal Model Framework of the Stratosphere-Troposphere Coupled System (2019)
  • Author(s): Shigeo Yoden, Hoang-Hai Bui and Eriko Nishimoto
  • Organizer: AMOS Annual Meeting 2019 and the International Conference on Tropical Meteorology and Oceanography
  • Int'l Joint Research
• [Presentation] Numerical Model Studies Studies with a Global and Regional Climate Models (2019)
  • Author(s): Shigeo Yoden
  • Organizer: Workshop on Extreme Weather under Changing Climate in the Maritime Continent
  • Int'l Joint Research / Invited
• [Presentation] Impact of ENSO on International Variations of Pre- and Post-monsoon Precipitation in Myanmar and Indochina Peninsula (2019)
  • Author(s): Shigeo Yoden, Rattana Chhin and Myint Myint Shwe
  • Organizer: 27th IUGG General Assembly
  • Int'l Joint Research
• [Presentation] Influence of QBO-like Oscillation on Tropical Convective Systems in a Three-Dimensioal Minimal Model Framework of the Stratosphere-Troposphere Coupled System (2019)
  • Author(s): Shigeo Yoden, Takahiro Banno and Hai Bui
  • Organizer: 27th IUGG General Assembly
  • Int'l Joint Research / Invited
• [Presentation] Stratospheric Influence on the Aggregation of Tropical Moist Convective Systems (2019)
  • Author(s): Shigeo Yoden, Hai Bui and Takahiro Banno
  • Organizer: 16th AOGS Annual Meeting
  • Int'l Joint Research / Invited
• [Presentation] QBO-like Oscillation in a Three-dimensional Minimal Model Framework of the Stratosphere-Troposphere Coupled System (2019)
  • Author(s): Shigeo Yoden, Hoang-Hai Bui and Eriko Nishimoto
  • Organizer: 16th AOGS Annual Meeting
  • Int'l Joint Research
• [Presentation] Diagnosis of the Impact of Interctive Stratosphric Chemistry on Climate Sensitivity Using a New Graphical Tool and a Proposal of Model Inter-Comparison (2019)
  • Author(s): Jain Shipra, Shigeo Yoden
  • Organizer: The Chemistry Climate Model Initiative (CCMI) Science Workshop 2019
  • Int'l Joint Research
• [Presentation] Stratosphere-Troposphere Dynamical Coupling in the Tropics. Part I and II (2019)
  • Author(s): Shigeo Yoden
  • Organizer: Second GOTHAM International Summer School
  • Int'l Joint Research / Invited
• [Presentation] A method to estimate an upper bound of disturbance growth from shear-flow instability using conservation laws (2019)
  • Author(s): K. Ishioka
  • Organizer: Physical and mathematical applications to geophysical fluid problems
  • Int'l Joint Research / Invited
• [Presentation] QBO的風速変動に関する一考察+IMEX線形多段階法に関するある証明 (2019)
  • Author(s): 石岡圭一
  • Organizer: dcmodelミーティング
• [Presentation] 3次元のスペクトル法を用いた静水圧大気モデルの改良とセミインプリシット法の適用 (2019)
  • Author(s): 藤田雅人, 石岡圭一
  • Organizer: 日本気象学会2019年度秋季大会
• [Presentation] 球面上の定常山岳波の伝播について (2019)
  • Author(s): 三木冬大, 石岡圭一
  • Organizer: 日本気象学会2019年度秋季大会
• [Funded Workshop] WCRP/SPARC SATIO-TCS joint workshop on Stratosphere-Troposphere Dynamical Coupling in the Tropics (2020)