2004 Volume 48 Pages 13-18
The purpose of the present study is to clarify the runoff mechanism from recession characteristics of hydrograph. We proposed a method to explain runoff characteristics and obtained an analytical solution related to recession curve of hydrograph. We can estimate the parameters of the present model from observed data of discharge. Runoff parameters are determined in term of the slope gradient, slope length, thickness of surface soil layer, unsaturated hydraulic conductivity and effective porosity. In our runoff analysis model, runoff characteristics in a basin can beextracted from characteristics of recession curve.
