流量过程线上地下径流分割模型初探

Prelimilary Research on the Separation of Subsurface Flow from Outflow Hydrograph

Underground water has hydraulic relation with river water at the time of flood. Rising and falling of flood water level not only leads to the increase and decrease of underground water near the bank, but also restricts the change of runoff outflow routing. Based on the regulation mechanism of riverbank, this paper attempts to compose a model on scperation of subsurface flow from outflow hydrograph. And it can be used to calculate the base flow and the direct runoff. This model is compact and well organized, its physical meaing is clear, and it's convenient to be operated on computer.