Indian watersheds form an important part of the contiguous water resources , particularly in the changed environments, which leads to urbanization and affects the climatic pattern. A concern of sustainable watershed management relates to the runoff assessment, as excessive runoff can cause flooding, while insufficient runoff can lead to water scarcity. In the current work, model has taken a typical TULASI watershed in the Kolhapur (Maharashtra) mountain range, and the approach is based on the National Remote Sensing Centre Curve Number (NRSC-CN) methodology. This data set was exported to the Soil and Water Assessment Tool (SWAT) using the ArcGIS extension and then re-projected from the elevation figures in coordinate system UTM North zone 43 using the Spatial reference transformation framework. The Tulasi watershed, with its seven sub-watersheds, was delimited in the same software platform with points of discharge defined. General evaluation of the NRCS-CN model revealed that a medium runoff depth, about 729 mm, is common for small catchments, whereas maximum values of surface runoff were observed during the monsoon in 2013, the twenty-first year of the studied period. Elevated and very elevated runoff potentials were observed in hilly lands and in most parts of the sloping areas under central and the lower reaches of sub-watersheds. The interpretation shows the general occurrences of potential surface runoff to be predominantly medium among the watersheds investigated; however, the occurrences tend to occur in upper reaches, which have a dense forest coverage and a coarse-textured surface of the soil.
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