| 考虑历史洪水时指数分布线性矩法的研究 |
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| 引用本文： | 李兴凯,陈元芳.考虑历史洪水时指数分布线性矩法的研究[J].水电能源科学,2009,27(2). |
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| 作者姓名： | 李兴凯 陈元芳 |
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| 作者单位： | 1. 河北电力勘测设计研究院,河北,石家庄,050031;河海大学水文水资源学院,江苏,南京,210098
2. 河海大学水文水资源学院,江苏,南京,210098 |
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| 摘 要： | 在介绍指数分布线性矩及其参数关系的基础上,提出了可考虑历史洪水线性矩公式,通过统计试验分析了线性矩法的统计性能及历史洪水公式的适用性,并与两种不同准则适线法、矩法作了比较.统计试验结果表明,线性矩法的参数及设计值合理有效、比矩法更稳定,是一种统计特性优良的参数估计法.
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| 关 键 词： | 指数分布 线性矩 优化适线法 历史洪水 统计试验 |
Study on Exponential Distribution L-moment Method in Consideration of Historical Flood |
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| LI Xingkai,CHEN Yuanfang.Study on Exponential Distribution L-moment Method in Consideration of Historical Flood[J].International Journal Hydroelectric Energy,2009,27(2). |
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| Authors: | LI Xingkai CHEN Yuanfang |
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| Affiliation: | 1.Electric Power Survey and Design Insitute of Hebei Province;Shijiazhuang 050031;China;2.College of Hydrology and Water Resources;Hohai University;Nanjing 210098;China |
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| Abstract: | Exponential distribution is commonly used in hydrology and other fields.After introducing L-moments of exponential distribution and its relationship with distribution parameters,a suitable formula of sample L-moments in consideration of the historical flood information was proposed,the statistical performance of L-moments for estimation of population parameters and suitability of the historical flood formula proposed were analyzed by Monte-Carlo method,then the comparison with the Moment method and the Curv... |
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| Keywords: | exponential distribution L-moment curve-fitting method historical flood statistical test |
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