Evaluation of WMS/HEC-HMS model in flood forecasting of Ghorve watershed

Rainfall-runoff models such as Watershed Modeling System (WMS) are suitable tools for watersheds hydrological simulation. In this research, different and effective parameters in hydrological modeling of Ghorve watershed were studied. Five storm Hyetographs and corresponding hydrographs were selected. Using the HEC-HMS sub model and SCS and Snyder methods, flood hydrograph was simulated and then calibrated and validated. The results in validation phase showed that for simulation of peak discharge, the SCS method has better agreement compared to observed data.