| 极值分布和P-III型分布线性矩法在区域洪水频率分析中的检验 |
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| 作者单位： | 河海大学水资源环境学院 江苏南京210098
(张静怡)，河海大学理学院 江苏南京210098(徐小明) |
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| 摘 要： | 以江西省和福建省的86个水文站的年最大洪水资料为样本,在成因水文分区———模糊聚类法的基础上,采用线性矩区域综合方法进行区域洪水频率分析,并选用两种区域洪水分布线型:通用极值分布(GEV)、P-III型分布来检验这两省的洪水特性。结果表明,P-III型分布优于GEV分布。
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| 关 键 词： | 极值分布 P-III型分布 线性矩法 区域洪水频率分析 |
Test on L-moment Estimation Method for GEV and P-III Distribution in Regional Flood Frequency Analysis |
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| Authors: | ZHANG Jing-yi XU Xiao-ming |
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| Institution: | ZHANG Jing-yi 1,XU Xiao-ming 2 |
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| Abstract: | The annual maximum flood data from86stations in Jiangxi Province and Fujian Province was applied as samples for regional flood frequency analysis using the L -moment estimation method based on genetic classification-- - fuzzy cluster analysis.Generalized Extreme-value distribution(GEV)and P-III distribution were selected to test flood characteristics of two provinces.The results show that using P-III distribution to estimate floods is more feasible than using GEV distribution. |
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| Keywords: | Generalized Extreme-value distribution Pearson type III distribution L-moment estimation method regional flood frequency analysis |
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