Application of SCS-CN Method forEstimation of Runoff Using GIS
Keywords:
Curve Number, ArcGIS, Hydrologic Soil Group, Antecedent Moisture ConditionAbstract
The study aims to determine the runoff depth using Soil conservation Service(SCS-CN) method in Geographical
Information System (GIS) environment. For this Meshwo River Watershed located in Dhansura - Aravalli district of Gujarat
has been selected. The Natural Resources Conservation service Curve Number (NRCS- CN) method has been adopted for
estimating the runoff depth in the Meshwo River Watershed. Thematic maps such as Soil, Land Use / Land cover and slope
have been used in conjunction with hydrological data for determininghydrological soil Group (HSG) and Curve Number
(CN) maps.