Hydrologic Assessment in a Middle Narmada Basin, India using SWAT Model

Abstract

Narmada, a river in central India flows in a rift valley through the state of Madhya Pradesh, Maharashtra and Gujarat, plays an important role for water supply and ground water recharge. Therefore water resource management and planning can be improved in a rift valley after accurate simulation of hydrological assessment. In this study the Soil and Water Assessment Tool (SWAT) used on middle Narmada basin. The basic objective of the present study is to derive parameters required for runoff modeling using the Remote Sensing and Geospatial database and estimate surface runoff of middle Narmada basin. The main input data for simulation of SWAT containing Digital Elevation Model (DEM), Land Use/Land Cover (LU/LC), Soil type, Soil properties and Hydro-climatologically data, were appropriately collected. By providing all inputs for model set up, SWAT model was simulated for the period of 12 years (1997-2008) and Validated with 2009 and 2010 year separately. The results indicated that 46% of the annual precipitation is lost by evapotranspiration in the basin.
Key Words: SWAT Model, Remote Sensing, GIS, HRU, SUFI-2, SWAT-CUP