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タイトル: River Discharge Projection under Climate Change in the Chao Phraya River Basin, Thailand, Using the MRI-GCM3.1S Dataset
著者: HUNUKUMBURA, P. B.
TACHIKAWA, Yasuto  kyouindb  KAKEN_id
著者名の別形: 立川, 康人
発行日: 2012
出版者: Meteorological Society of Japan
誌名: Journal of the Meteorological Society of Japan. Ser. II
巻: 90A
開始ページ: 137
終了ページ: 150
抄録: The impact of climate change on river flow in the Chao Phraya River basin in Thailand is analyzed by feeding future runoff projection data into a distributed flow routing model. The projection data used consists of daily runoff generation, which is downscaled into hourly data, by assuming the temporal pattern is proportional to GCM generated hourly precipitation. The GCM dataset used is a 20 km spatial resolution general circulation model (MRI-AGCM3.1S) developed by the Meteorological Research Institute, Japan Meteorological Agency, for the present climate experiment (1979-2003), the near future climate experiment (2015-2039), and the future climate experiment (2075-2099). The main findings of the river discharge projections are as follows: 1) clear changes in hourly flood peak discharge, daily drought discharge, and monthly discharge were detected; 2) for each discharge, the degree of change differed by location; 3) the changes appeared in the near future climate experiment and became clearer in the future climate experiment; and 4) a significant decrease in discharge was detected at the Pasak River basin in October.
著作権等: © 2012 by Meteorological Society of Japan
URI: http://hdl.handle.net/2433/166327
DOI(出版社版): 10.2151/jmsj.2012-A07
出現コレクション:学術雑誌掲載論文等

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