Elucidation of the teleconnection mechanism from the extra-tropics to the tropics in the future climate change

• Project/Area Number: 15K05280
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Meteorology/Physical oceanography/Hydrology
• Research Institution: Hokkaido University
• Principal Investigator: YOSHIMORI Masakazu 北海道大学, 地球環境科学研究院, 准教授 (20466874)
• Co-Investigator(Kenkyū-buntansha): 塩竈 秀夫 国立研究開発法人国立環境研究所, 地球環境研究センター, 主任研究員 (30391113)
• Co-Investigator(Renkei-kenkyūsha): WATANABE Masahiro 東京大学, 大気海洋研究所, 教授 (70344497)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: 気候変動 / 将来予測 / ハドレー循環 / 熱帯降雨 / 気候モデル

Outline of Final Research Achievements

It is expected that the distribution of tropical rain in the future would change for various factors. One of those factors is the teleconnection due to the asymmetric warming between Northern and Southern Hemisphere mid-high latitudes. Previous studies have reported that the tropical rain tends to increase in the hemisphere of greater warming. The effect of ocean circulation change has not been taken into account in most studies, however. In this study, the mechanism of the teleconnection considering the ocean circulation change under the realistic future scenario was investigated. A novel point is the integration of energetic and dynamical perspectives in the interpretation of the result. Pointing the importance of ocean dynamical effect, a fundamental insight regarding the mechanism for the change in tropical rain was acquired.

Research Products

• [Int'l Joint Research] Columbia University/California Institute of Technology/University of Wisconsin-Madison(米国)
• [Int'l Joint Research] Max Planck Institute for Meteorology(ドイツ)
• [Int'l Joint Research] Pierre and Marie Curie University/Meteo-France(フランス)
• [Int'l Joint Research] University of Reading(英国)
• [Int'l Joint Research] University of Bergen(ノルウェー)
• [Int'l Joint Research]
• [Int'l Joint Research] Columbia University/California Institute of Technology/University of Wisconsin-Madison(米国)
• [Int'l Joint Research] Max Planck Institute for Meteorology(ドイツ)
• [Int'l Joint Research] Pierre and Marie Curie University/Meteo-France(フランス)
• [Int'l Joint Research] University of Reading(英国)
• [Int'l Joint Research] University of Bergen(ノルウェー)
• [Int'l Joint Research]
• [Journal Article] The importance of ocean dynamical feedback for understanding the impact of mid-high-latitude warming on tropical precipitation change. (2018)
  • Author(s): Yoshimori, M., A. Abe-Ouchi, H. Tatebe, T. Nozawa, and A. Oka
  • Journal Title: Journal of Climate Volume: 31 Issue: 6 Pages: 2417-2434
  • DOI: 10.1175/jcli-d-17-0402.1
  • Peer Reviewed / Open Access
• [Journal Article] The Tropical Rain belts with an Annual cycle and a Continent Model Intercomparison Project: TRACMIP (2016)
  • Author(s): Voigt, A., M. Biasutti, J. Scheff, J. Bader, S. Bordoni, F. Codron, R. D. Dixon, J. Jonas, S. Kang, N. P. Klingaman, R. Leung, J. Lu, B. Mapes, E. A. Maroon, S. McDermid, J. Park, R. Roehrig, B. E. J. Rose, G. L. Russell, J. Seo, T. Toniazzo, H.-H. Wei, M. Yoshimori, and L. R. V. Zeppetello
  • Journal Title: Journal of Advances in Modeling Earth Systems Volume: 8 Issue: 4 Pages: 1868-1891
  • DOI: 10.1002/2016ms000748
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] A review of progress towards understanding the transient global mean surface temperature response to radiative perturbation. (2016)
  • Author(s): Yoshimori M, Watanabe M,(岡4番目,阿部5番目,他3人)
  • Journal Title: Progress in Earth and Planetary Science Volume: 3 Issue: 1 Pages: 1-14
  • DOI: 10.1186/s40645-016-0096-3
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Presentation] 中高緯度の温暖化が熱帯の降雨分布に与える影響2 (2018)
  • Author(s): 吉森正和、阿部彩子、建部洋晶、野沢徹、岡顕
  • Organizer: 気象学会2018年度春季大会
• [Presentation] The impact of extratropical warming on the tropical precipitation. (2017)
  • Author(s): Yoshimori, M., A. Abe-Ouchi, H. Tatebe, and T. Nozawa
  • Organizer: EGU (European Geosciences Union) General Assembly 2017
  • Int'l Joint Research
• [Presentation] The effect of extratropical warming amplification on the future tropical precipitation. (2016)
  • Author(s): Yoshimori, M., Y. Hamano, and A. Abe-Ouchi
  • Organizer: The Seventh Symposium on Polar Science
  • Place of Presentation: 国立極地研究所（立川）
  • Year and Date: 2016-12-02
  • Int'l Joint Research
• [Presentation] 中高緯度の温暖化が熱帯の降雨分布に与える影響 (2016)
  • Author(s): 吉森正和, 濱野勇臣, 阿部彩子
  • Organizer: 日本気象学会 2016年秋季大会
  • Place of Presentation: 名古屋大学（名古屋）
  • Year and Date: 2016-10-27
• [Remarks] 研究室ホームページ
  • URL: http://wwwoa.ees.hokudai.ac.jp/~myoshimo/