A Study on the South China Sea Throughflow Using a Coupled General Circulation Model

2011 Fiscal Year Final Research Report

• Project/Area Number: 21740341
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Meteorology/Physical oceanography/Hydrology
• Research Institution: The University of Tokyo
• Principal Investigator: TOZUKA Tomoki 東京大学, 大学院・理学系研究科, 准教授 (40376538)
• Project Period (FY): 2009 – 2011
• Keywords: 気象・海洋物理・陸水学 / 気候変動 / 大気海洋相互作用 / 南シナ海 / インドネシア通過流 / 海洋循環 / 熱帯域 / 大気海洋結合モデル

Research Abstract

Using a coupled general circulation model, we have conducted two experiments with and without the South China Sea Throughflow(SCSTF). It is found that the model's sea surface temperature becomes cooler in the eastern and far western equatorial Pacific and south of Japan, but warmer in the South China Sea and the Kuroshio Extension region, when the SCSTF is blocked. In particular, the warmer South China Sea influenced the Walker Circulation in the tropical Indian and Pacific Oceans. Also, the dominant period of El Nino/Southern Oscillation becomes longer without the SCSTF.

Research Products

• [Journal Article] Impacts of the South China Sea Through flow on Seasonal and Interannual Variations of the Indonesian Through flow
  • Author(s): Tozuka, T., T. Qu, Y. Masumoto, and T. Yamagata
  • Journal Title: Dynamics of Atmospheres and Oceans Volume: 47 Pages: 73-85
  • DOI: doi:10.1016/j.dynatmoce.2008.09.001
  • Peer Reviewed
• [Presentation] Roles of the South China Sea Throughflow in the Global Climate as Revealed by a Coupled General Circulation Model (2012)
  • Author(s): Tozuka, T., T. Qu, and T. Yamagata
  • Organizer: International Pacific Research Center(IPRC) Seminar
  • Place of Presentation: Hawaii, USA
  • Year and Date: 2012-01-11
• [Presentation] A Coupled Modeling Study on Roles of South China Sea Throughflow in the Global Climate (2011)
  • Author(s): Tozuka, T., T. Qu, and T. Yamagata
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ(千葉県)
  • Year and Date: 2011-05-26
• [Presentation] An Overview of Ocean and Coupled Models (2011)
  • Author(s): Tozuka, T., A. Biastoch, P. Penven, W. Sasaki, J.-J. Luo, and T. Yamagata
  • Organizer: 2nd Data Buoy Cooperation Panel(DBCP) Africa/Western Indian Ocean Capacity Building Workshop
  • Place of Presentation: Mauritius
  • Year and Date: 2011-05-02
• [Presentation] Role of the South China Sea Throughflow in the Global Climate System (2010)
  • Author(s): Tozuka, T., T. Qu, T. Yamagata
  • Organizer: Mini-Workshop on Seasonal to Interannual Climate Variations
  • Place of Presentation: The University of Tokyo, Tokyo
  • Year and Date: 2010-11-30
• [Presentation] 大気海洋結合モデルを用いた南シナ海通過流に関する研究 (2010)
  • Author(s): 東塚知己、T. Qu、山形俊男
  • Organizer: 2010年度日本海洋学会秋季大会
  • Place of Presentation: 東京農業大学(北海道網走市)
  • Year and Date: 2010-09-07
• [Presentation] Role of the South China Sea Throughflow in the Global Climate System (2010)
  • Author(s): Tozuka, T., T. Qu, and T. Yamagata
  • Organizer: 2010 Western Pacific Geophysics Meeting
  • Place of Presentation: Taipei, Taiwan(招待講演)
  • Year and Date: 2010-06-24
• [Presentation] Climate Simulations in the University of Tokyo Coupled Model (2009)
  • Author(s): Tozuka, T., T. Doi, T. Kataoka, T. Miyasaka, and T. Yamagata
  • Organizer: JAMSTECアプリケーションラボ国際シンポジウム-南アフリカにおける気候変動と亜熱帯海洋の役割-
  • Place of Presentation: 女性と仕事の未来館(東京都)
  • Year and Date: 2009-12-03