水力发电2011，Vol.37Issue(4)：20-23,4.
基于阿基米德联合函数的洪水过程随机模拟研究
Stochastic Simulation Research on Flood Hydrograph Based on Archimedean Copula Functions
摘要
Abstract
The Archimedean Copula functions are used to construct a joint probability distribution for describing flood peak and volume, and the flood hydrographs are constructed by random sampling from the distribution to achieve flood peak and volume series. The applicability of three kinds of Archimedean Copula models are evaluated from the statistical parameters,flood hydrograph and flood frequency distribution of simulative flood. The results show that Gumbel-Hougard, Clayton and Frank Copula functions can reflect the correlation between flood peak and volume and eliminate the shortcoming on separate processing the flood peak and volume, and comparing with the seasonal first-order autoregressive model, the Archimedean Copulamodels can keep much better in the statistical parameters, hydrograph and frequency distribution of actual flood. The study provides a reference for using Archimedean Copula functions in the stochastic simulation of flood hydrograph.关键词
洪水过程/随机模拟/联合函数/研究Key words
flood hydrograph/ stochastic simulation/ Copula function/ research分类
建筑与水利引用本文复制引用
杨立峰,周研来,夏世明,曾令军..基于阿基米德联合函数的洪水过程随机模拟研究[J].水力发电,2011,37(4):20-23,4.基金项目
国家自然科学基金重点项目(50839005) （50839005）
