|Title:||A flood risk curve development for inundation disaster considering spatio-temporal rainfall distribution|
|Author's alias:||立川, 康人|
|Publisher:||European Geosciences Union (EGU)|
|Journal title:||Proceedings of the International Association of Hydrological Sciences (PIAHS)|
|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.|
|Appears in Collections:||Journal Articles|
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