INCORPORATING RAINFALL INTENSITY INTO DAILY RAINFALL RECORDS FOR SIMULATING RUNOFF AND INFILTRATION INTO SOIL PROFILES

Hydrological modelling often implies the use of rainfall data. Its quality and resolution directly affect the accuracy of the simulation results. The study shows that a simple approach of incorporating rainfall intensity information in daily rainfall records signigicantly improves the simulation of surface runoff and rainfall infiltration into soil profiles. To test the effect, the surface runoff and water flow into three different soil types was simulated using the HYDRUS-1D model for a typical dry, normal and wet year. Comparison with the results obtained with the model of the soil conservation service model.