Abstract
A physically-based conceptual model for continuous modelling of Hortonian overland flow and infiltration under variable rainfall has been proposed and tested at a point, with the values generated by a complex finite-element infiltration model. The model has been shown to predict both the volumes and positions in time of overland runoffs, from a real 146mm/day rainfall pattern quite well, for three simulation time intervals and three values of top-soil saturated hydraulic conductivity. An interesting feature of the model is its ability to give realistic determination of rainfall excess, compared to the methods currently available.
