ESTIMATION OF RUNOFF BY USING SCS CURVE NUMBER METHOD INTEGRATED WITH GIS

Abstract: Rainfall, runoffs are the most important hydrological variables used in the most of the water resources applications. The information pertaining to occurrence of runoff further helps in water management practices. Runoff is normally generated on limited areas i.e. impervious or less impervious areas, saturated areas etc. Whereas neighboring vegetated areas do not generate any direct runoff. This needs to be taken into account of rainfall-runoff modeling and thus in the delineation of the areas. The input parameters which influence runoff component vary spatially at micro levels. A runoff model has been developed on the basis of SCS-CN method in the present study for predicting runoff.

Keywords: Rainfall, Runoff, SCS-CN, Remote Sensing And GIS.