一个基于GIS的分布式非线性水文模型

A Nonlinear Distributed Hydrological Model Based on GIS

着重研究了确定性水文模型,即采用系统水文学的途径,利用GIS工具,根据流域的水文特性与流域属性,将流域分为若干个子流域,模拟各个子流域的水文特征;将流域水文参数及流域属性的空间分布特征与水文模型藕合,以直接积分的方法解决单输入单输出的模型,并推广到多输入单输出的流域非线性分布式梯级瀑布水文模型,提出了一个计算简便、精度可靠的流域汇流计算模型。

For determinating hydrological model,a catchment may be divided into several subcatchments by GIS. To obtain a solution for single-input and single-output model,their hydrological and spatial parameters are couplined with the hydrological model and integrated.This method may be extended to non-linear distributed hydrological model.