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Title
Japanese:気温上昇と極端降水発生頻度変化率の関係 -d4PDF過去・将来実験を用いた検討 
English:Analysis of the Relationship Between Temperature Rise and Frequency Change Rate in Extreme Rainfall Events Using d4PDF Past and Future Experiments 
Author
Japanese: 吉川 沙耶花, 渡邉 恵, 鼎 信次郎.  
English: Sayaka Yoshikawa, Megumi Watanabe, Shinjiro Kanae.  
Language Japanese 
Journal/Book name
Japanese:土木学会論文集B1（水工学） 
English:Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 
Volume, Number, Page 78    2    I103-I108
Published date 2022 
Publisher
Japanese:公益社団法人 土木学会 
English: 
Conference name
Japanese:第67回水工学講演会 
English: 
Conference site
Japanese:愛媛県松山市 
English: 
Official URL https://www.jstage.jst.go.jp/article/jscejhe/78/2/78_I_103/_article/-char/ja/
 
DOI https://doi.org/10.2208/jscejhe.78.2_I_103
Abstract  The changes in future extreme precipitation that will occur due to anthropogenic climate change remain an important subject. Extreme precipitation is proportional to the amount of atmospheric precipitation available, possibly following the Clausius-Clapeyron (CC) relationship (7%/°C). In this study, we attempted to analyze the influence of the application of CC scaling on the frequency change rate of extreme precipitation events with different time scales in Japan using d4PDF past and future climates experiments for +1.5K, +2K, and +4K rise in the global mean surface air temperatures. The results showed that the frequency change rate of the past period was within the theoretical range of the CC scaling, regardless of the precipitation duration. The frequency change rate of future periods tend to fall below the theoretical range of CC scaling as temperature increases. However, result for the most extreme event with 1-hour precipitation in the 4 °C temperature increase experiment showed that the increase in frequency change rate was within the theoretical CC scaling range in the northwestern Kyushu, western Chugoku, Hokuriku, Kanto, Tohoku, and Hokkaido regions.

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