Downscaling of the Climatic Change in the Mei-yu Rainband in East Asia by a Pseudo Climate Simulation Method

DOI Web Site 被引用文献9件 参考文献8件 オープンアクセス
  • Kawase Hiroaki
    Frontier Research Center for Global Change, JAMSTEC
  • Yoshikane Takao
    Frontier Research Center for Global Change, JAMSTEC
  • Hara Masayuki
    Frontier Research Center for Global Change, JAMSTEC
  • Ailikun Borjiginte
    Institute of Atmospheric Physics, Chinese Academy of Science
  • Kimura Fujio
    Frontier Research Center for Global Change, JAMSTEC Graduate School of Life and Environmental Sciences, University of Tsukuba
  • Yasunari Tetsuzo
    Frontier Research Center for Global Change, JAMSTEC Hydrospheric Atmospheric Research Center, Nagoya University

書誌事項

公開日
2008
DOI
  • 10.2151/sola.2008-019
公開者
公益社団法人 日本気象学会

説明

This study focuses on the reproducibility of the climatic change in the early summer rainfall in East Asia (Mei-yu rainband) by the Pseudo Climate Simulation (PCS) using a regional climate model. In the PCS, the lateral boundary condition is given by the composite of six hourly reanalysis data and the difference between two decadal climate means. The daily variation on the lateral boundary of the PCS is similar to that of the control hindcast in one decade, but its climate is the same as the other decadal mean. The PCS accurately reproduces the change in the Mei-yu rainband over Southern China between the 1960s and the 1990s, suggesting that the climatic features of the Mei-yu rainband are controlled by the climatic change in a large-scale circulation.<br>The PCS reduces the uncertainty caused by the interannual variability in case of the downscaling of global warming projected by the General Circulation Models (GCMs) even if the number of sample years is the same as that in the conventional dynamical downscaling. The PCS can also exclude model biases in the present climatology reproduced by each GCM.

収録刊行物

  • SOLA

    SOLA 4 73-76, 2008

    公益社団法人 日本気象学会

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