STUDY ON RUNOFF ANALYSIS CONSIDERING VERTICAL INFILTRATION IN A SLOPE

Abstract

 It is important to clarify the runoff process of catchment water which reached the surface of the ground, and it has been studied intensively in the field of hydrology. In general, it is thought that the runoff phenomenon consists of multiple runoff components. In the past, some runoff models with multi-layer construction are proposed. Although these models' parameters have physical meanings, their reproducibility of hydrograph is not significant. A runoff model based on Kinematic Wave considering infiltration mechanics is newly proposed in this paper. Moreover, this model is applied to the Kusaki dam basin(254km²), and the availability is shown.