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タイトル: | A flood risk curve development for inundation disaster considering spatio-temporal rainfall distribution |
著者: | Tanaka, T. Tachikawa, Y. Yorozu, K. |
著者名の別形: | 立川, 康人 萬, 和明 |
発行日: | 11-Jun-2015 |
出版者: | European Geosciences Union (EGU) |
誌名: | Proceedings of the International Association of Hydrological Sciences (PIAHS) |
巻: | 370 |
開始ページ: | 57 |
終了ページ: | 62 |
抄録: | To manage flood disaster with an exceeding designed level, flood risk control based on appropriate risk assessment is essential. To make an integrated economic risk assessment by flood disaster, a flood risk curve, which is a relation between flood inundation damage and its exceedance probability, plays an important role. This research purposes a method to develop a flood risk curve by utilizing a probability distribution function of annual maximum rainfall through rainfall-runoff and inundation simulations so that risk assessment can consider climate and socio-economic changes. Among a variety of uncertainties, the method proposed in this study considered spatio-temporal rainfall distributions that have high uncertainty for damage estimation. The method was applied to the Yura-gawa river basin (1882 km2) in Japan; and the annual economic benefit of an existing dam in the basin was successfully quantified by comparing flood risk curves with/without the dam. |
著作権等: | © Author(s) 2015. This work is distributed under the Creative Commons Attribution 3.0 License. |
URI: | http://hdl.handle.net/2433/216393 |
DOI(出版社版): | 10.5194/piahs-370-57-2015 |
出現コレクション: | 学術雑誌掲載論文等 |
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