摘要
传统单变量洪水设计独立控制洪水特征变量设计防洪标准,忽视了其随时间变化的依存特征,文章基于G-H类型Copula函数从洪峰、洪量二维特征出发进行联合设计。在某水库中的应用表明,二维联合设计方案是偏安全的,这有利于最大程度上防御汛限洪水。G-H Copula函数考虑了洪水事件过程峰量联合分布特征,是基于洪水过程与形态的设计方案,可为库区洪水设计提供可靠依据。
The flood control standard is designed by controlling flood characteristic variables independently in traditional univariate flood design,and it ignores dependence with time.Based on the g-h type Copula function,this paper carries out joint design according to the two-dimensional characteristics of flood peak and flood volume.The application in a reservoir shows that:two-dimensional joint design scheme is relatively safe,and is beneficial to defense the flood limit flood in maximum degree.G-H Copula function takes into account the joint distribution characters of flood event process,and is a design scheme based on flood process and morphology,which may provide dependable accordance for the flood design in reservoir zone.
作者
郑军
ZHENG Jun(Yili River Basin Development,Construction and Management Bureau of Xinjiang,Yining 835000,China)
出处
《黑龙江水利科技》
2019年第12期77-79,90,共4页
Heilongjiang Hydraulic Science and Technology
