摘要
采用Copula函数的基本理论和方法构建了边缘分布为P-Ⅲ型的联合分布,描述分析了潮位和降雨二者频率组合后确定流域防洪标准的合理性,为流域防洪分析提供了一种新方法。算例结果表明,在给定某一频率的潮位下,有多种频率的降雨进行组合,且概率随频率的增加而减小。
The basic theory and methodology of Copula function is used to establish joint distribution with Pearson Type Ⅲ（P-Ⅲ） marginal distribution.It analyzes the rationality of flood control standard determined by combination of tidal level and rainfall frequency,which provides a new method for analysis of basin flood control.The results show that there is various frequency combination of rainfall under a given frequency of tide level,and the probability decreases with the increase of frequency.
出处
《水电能源科学》
北大核心
2012年第11期35-37,197,共4页
Water Resources and Power
