Study on deep percolation based on the unsaturated flow theory and the tank model

Abstract

How to estimate the effective rainfall is one of the important problems unsolved in flood runoff analysis. During a runoff-producing storm, the runoff due to deep percolation of the infiltrated water is analyzed based on unsaturated flow theory and tank model in a experi-mental river basin. Moreover, authors compare the estimated effective rainfall through unsaturated flow theory, tank model and entropy method and find these coincide with each other.