The runoff was estimated for the SA-13 watershed of Ashti, Beed District of Maharashtra state lies 750 04' 55" to 750 16' 25" E longitude and 180 40' 11" to 180 56' 20" N latitude with an areas of 21300 ha using remote sensing and GIS techniques. The watershed was divided into 15 micro-watersheds. Multidate satellite data of IRS P-6 LISS III of path 059 and row 096 with 23.5 m resolution was used. Different types of thematic maps like administrative boundary maps, slope map, land use land cover map and rainfall maps were derived from remotely sensed data and overlayed through ArcGIS software to assign the polygon wise curve number. Soil Conservation Curve Number method is used to determine curve numbers and runoff volume distribution in the watershed. The result of the study showed that the average rainfall for the year 2005 in the watershed was 406.50 mm and the average annual runoff was 93.52 mm, amounting 23.01 percent of the total rainfall.

Full text: IJEIR_1279_Final.pdf