Risk Assessment on Storm Flood Disasters of Different Return Periods in Huai River Basin

摘要

For studying the risk assessment on storm flood disasters in Huai river basin, the Information Integration Model are used in this paper. The new method is to integrate with other 11 kinds of complex indicators with quantification. Among all the indicators, the maximum daily precipitation values of different return periods are regarded as the important part to from indicator system. The study shows the high-risk areas of flood disaster of four kinds of return periods are located in the Mengwa flood basin of Wangjiaba in Funan County. The spatial distribution of the whole basin presents the pattern that major disasters have reduced but small disasters occurred constantly in the eastern basin; the high-risk areas of western basin are vulnerable to flood, and the middle north and middle south areas of basin are relatively safe.