具有水文物理概念的日径流随机模型

Daily streamflow stochastic model with hydrological physical concept

本文应用伊藤（ＩＴＯ）型随机微分方程，建立了具有水文物理参数的日径流随机模型．在金沙江屏山站的日径流模拟中，采用确定性方法分析并定出了模型中的水文物理参数；实现了具有一定水文物理概念的日径流随机模拟．

Abstract A stochastic hydrological model with physical concept is set up by the use of the ITO stochastic differential equation. In the simulation of daily streamflow of the Pinshen hydrologic station, the hydrological concept parameter of the model is analyzed and derived by determined method. Thus the simulation of streamflow with hydrological physical concept basis can be realized.