SPATIAL FLOOD DAMAGE ESTIMATIONS BASED ON RELATIONSHIP BETWEEN EXTREME PRECIPITATION AND EXTREME DISCHARGE
SPATIAL FLOOD DAMAGE ESTIMATIONS BASED ON RELATIONSHIP BETWEEN EXTREME PRECIPITATION AND EXTREME DISCHARGE
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基于极端降水与极端流量关系的空间洪灾损失估算
DOI：
10.2208/jscejhe.69.i_1603
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发表时间：
2013
影响因子：
--
通讯作者：
S. Kazama
中科院分区：
文献类型：
--
作者：
Shoya Tezuka;K. Ono;S. Kazama
本研究提出了一种基于水力模型来评估经济洪水损失的方法，该方法考虑了通过统计和气象特征估计的极端降水的空间分布。为了计算极端降水造成的后续流量，利用日本全国 89 个站点的河流流量历史数据得出了流域面积与流量系数之间的回归关系。 100年一遇的洪水预计造成的潜在经济损失达7900亿美元。
This study presented a method to assess the economical flood damages based on a hydraulic model, which took into account a spatial distribution of extreme precipitation estimated by statistical and meteorological characteristics. In order to calculate subsequent discharges due to an extreme precipitation, a regression relationship between catchment areas and coefficient of discharges was derived using the historical data of river discharges at 89 stations throughout Japan. The potential economic damage for a flood of 100-year return period was estimated to be 790 billion USD.