摘要
在Ｓｔｒａｈｌｅｒ河流分级法的基础上，提出了单元级别的确定原则，并进一步定义了概念性流域地貌汇流模型．为了将河道洪水演算方法移置到流域汇流模型中，还定义了“滞时演进河段”这一新的概念性元素．推导了三级流域瞬时单位线，选用内罚函数法估计模型参数，实例检验，模型拟合精度较高．
Based on Strahler stream-ordering rule,the unit-ordering procedure is presented and conceptual watershed geomorphologic concentration model is further defined. In order to transplant channel flood routing mothed to watershed routing model, the author defines a nwe conceptual element known as lag-routing reach. The instantaneous unit hydrograph of three-order basin is derived. The model paramcters are estimated by using interior-penalty-funotion method. The proposed model is tested and the result shows that the model accuracy is high.
出处
《武汉水利电力大学学报》
CSCD
1994年第5期513-518,共6页
Engineering Journal of Wuhan University
关键词
流域模型
地貌
滞时演进
内罚函数
watershed concentration
geomorphy
watershed model
lag routing
interior penalty function
