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Title: A flood risk curve development for inundation disaster considering spatio-temporal rainfall distribution
Authors: Tanaka, T.
Tachikawa, Y.
Yorozu, K.
Author's alias: 立川, 康人
萬, 和明
Issue Date: 11-Jun-2015
Publisher: European Geosciences Union (EGU)
Journal title: Proceedings of the International Association of Hydrological Sciences (PIAHS)
Volume: 370
Start page: 57
End page: 62
Abstract: 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.
Rights: © Author(s) 2015. This work is distributed under the Creative Commons Attribution 3.0 License.
DOI(Published Version): 10.5194/piahs-370-57-2015
Appears in Collections:Journal Articles

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