TOPMODEL模型几个问题的研究

Discussion on Some Issues of TOPMODEL

为了推动TOPMODEL的发展,为变化环境下水文循环模拟的研制开拓一些思路,概述了TOPMODEL模型的物理概念和基本方程推导,以板桥流域为例,探讨了不同分辨率DEM对地形指数计算的影响,绘制了单元流域计算流程图,同时比较了它与传统集总式模型和分布式水文模型的优缺点,指出TOPMODEL需要进一步研究改进的问题。

This paper outlines the basic physical concepts of TOPMODEL, and represents a view of some of the issues involved in application of the TOPMODEL concepts, including cooperation with the traditional lumped hydrological model and the distributed model and the problem that will be resolved. Moreover, the program structure of single catchment is drew and the impact of DEM grid cell sizes to topographic index ,in the case of Banqiao catchment, is also studied. The aim is to seek a thoughtful approach to TOPMODEL.