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Title
Japanese:日本における豪雨と台風の経路パターンとの関係の分析 
English:Analysis of the Relationship Between Typhoon Patterns and Extreme Rainfall in Japan 
Author
Japanese: 武川晋也, 井芹慶彦, 鼎信次郎.  
English: Shinya Takegawa, Yoshihiko Iseri, Shinjiro Kanae.  
Language Japanese 
Journal/Book name
Japanese:土木学会論文集B1（水工学） 
English: 
Volume, Number, Page 73巻(2017)    4    p. I241-I246
Published date Feb. 28, 2017 
Publisher
Japanese:公益社団法人 土木学会 
English: 
Conference name
Japanese:第61回水工学講演会 
English: 
Conference site
Japanese:福岡市 
English: 
Official URL https://www.jstage.jst.go.jp/article/jscejhe/73/4/73_I_241/_article/-char/ja
 
DOI https://doi.org/10.2208/jscejhe.73.I_241
Abstract Extreme rainfall by typhoons can cause floods and landslide disasters, and bring down serious damage to the society. However, typhoon track data is multivariate data which consists of genesis position, route, termination position and so on, so it is difficult to understand the relationship between extreme rainfall and characteristics of typhoon tracks. In this study, the typhoons which were observed in the Northwest Pacific from 1951 to 2014 were classified into 20 track patterns (nodes) by using self-organizing maps which is suitable for pattern extraction. Then, in the 10 observation points which were selected from each region in Japan, the rate of precipitation caused by typhoons of each node was calculated. In addition, top 3 events of daily precipitation were extracted, and the factors of extreme rainfall such as nodes of typhoons and fronts were examined. As a result, it is found that the relationship between extreme rainfall and typhoon track patterns are different depending on the observation point like the combination of the particular node and front or only front.

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