确定性方法推求地貌单位线

本文采用线性水库的概念,结合流域地貌特征,考虑坡面汇流和河道汇流的差异,用确定性方法推得流域地貌单位线.并与纳须瞬时单位线和传统的地貌单位线一起应用到爱尔兰的 Ne-nagh 流域,模型效益达到92.3％,优于传统的地貌单位线.

A Deterministic Method for Deriving Geomorphologic Unit Hydrograph

Employing the concept of liner reservoir,taking account of cathment geomorphology and the difference between the overland routing and the channel routing,this paper proposes a deterministic method to derive the geomorphologic unit hydrograph(GIUH).The GIUH derived with the present deterministic method together with Nash GUH and the traditional GUH were used to Ne- nagh catchment,Ireland.Model efficieney reached 92.3%,while the traditional GUH's was only 85.9%.