湘江流域区域洪水频率分析计算
Regional Flood Frequency Analysis in the Xiangjiang Basin

作者: 陈 华 * , 何加伟 :武汉大学水资源与水电工程科学国家重点实验室; 栗 飞 :中工武大设计研究有限公司; 王金星 :水利部水文情报预报中心;

关键词: 区域频率分析无资料地区模糊相似选择线性矩法Regional Frequency Analysis Ungaged Basins Fuzzy Analogy L-Moments

摘要: 区域洪水频率分析方法是无资料地区设计洪水计算的主要方法之一。在收集湘江流域湘潭、衡阳、湘乡、甘溪和大西滩5个水文站的1959~2005年径流系列资料的基础上,研究和探讨区域洪水频率分析方法的适用性。通过假设衡阳站为短系列资料,采用区域频率分析方法估算衡阳站的设计洪水值,并同与水文比拟法估算得到的衡阳站设计洪水值进行比较。比较结果表明,用区域频率分析法估算衡阳站设计洪水值的结果较好,在无资料地区的设计洪水计算有较好的适用性,可以进一步推广应用。

Abstract: Regional frequency analysis (RFA) method is one of the main tools for estimating design floods in ungauged basins. The applicability of RFA was analysed in the XiangjiangBasinby using annual maximum flood series of five hydrological stations from 1959 to 2005, includingXiangtan,Hengyang, Xiangxiang, Ganxi and Daxitan hydrological stations. The design flood values ofHengyangstation were estimated by using RFA and hydrologic analogy method. The results were compared and discussed, which showed that RFA had relatively better precision than others in the estimation of design flood and is more suitable for ungaged basins.

文章引用: 陈 华 , 何加伟 , 栗 飞 , 王金星 (2013) 湘江流域区域洪水频率分析计算。 水资源研究, 2, 20-26. doi: 10.12677/JWRR.2013.21004

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