Calculation Higher Probability Weighted Moments for Generalized Extreme Value in Hydrology

Song Bai Song; Yang Li; Yan Kang

doi:10.4028/www.scientific.net/AMR.518-523.4015

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Calculation Higher Probability Weighted Moments for Generalized Extreme Value in Hydrology
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Calculation Higher Probability Weighted Moments for Generalized Extreme Value in Hydrology

Abstract:

In flood frequency analysis, the observed data of the smaller censored flows have no influence on fitting frequency curve, and the final fitting still depends very mainly on the larger flows. It also exhibits two or more distinct segments. The higher probability weighted moments(HPWMS) showed its potential merit for these estimating flood samples. In this paper, a detail approximating calculation of the parameter for common generalized extreme value (GEV) distribution by HPWMS method is given. This method has no more complication procedures than traditional lower orders of probability weighted moments.