Hydrologic Modeling In Diass River Basin Using Rainfall-Runoff Model Swmm

Research Article
Moustapha FAYE Vieux Boukhaly TRAORE Mamadou BOP, Cheikh MBOW1, Giovani Malomar1, El hadj Oumar GUEYE4, Abdoulaye Ndiaye DIONE, Joseph SARR, Amadou Tahirou DIAW and Aboubaker Chedikh BEYE
SWMM, Waterresources management, Rainfall Runoff models, Diass rive basin, Senegal.

Conceptual distributed rainfall runoff models are very useful tools for water resources assessment in river system. In this study, we have used one of them SWMM, to simulate the hydrological behavior of Diass river basin. The aim is to evaluate the availability of water in this river basin for application to irrigation and market gardening. With hydroclimatic data and physical data of river basin, this software has calculated the flow and losses. We have first analyzed the spatio-temporal evolution of the losses. Secondly, we have compared graphically simulated and measured catchment runoff to appropriate model evaluation. The results show strong losses during the rainy season and a good fitness between calculated and observed flows. These results show the performance of SWMM to accurately represent the natural system. This study provides an opportunity for decision maker to take account many important elements before investment plans for irrigation in this area.