Estimating Runoff for Bamnidhi Watershed Using SCS Curve Number Approach and Geospatial Technique

Water is one of the most valuable natural resources and a vital component socioeconomic development nation. in India throughout world are under lot stress as result limited supply rising demand. availability region can be better estimated using rainfall runoff relationship. Runoff mostly produced rainfall, which significant part hydrologic cycle. In this study, rainfall-runoff relation Bamnidhi watershed Chhattisgarh (India) studied SCS CN method. Various inputs such HSG map land use cover were overlaid ArcGIS platform for estimation weighted curve number, based on estimated. The results study indicate that values range from 30 to 97. lowest potential observed forest regions having value around 30, while highest water bodies. total found 3.6 Million m3 period 2011 2020, about 10 25 percent rainfall.