Sustainable Water Management using Rainfall Runoff Modeling: A Geospatial Approach

Abstract

In earth crust, precipitation is one of the dynamic hydrologic cycle. It is an ideal unit of natural resource like water from precipitation. In present days, Remote Sensing technology (RS) in association with Geographic Information system (GIS) has become a very important in innovation of technology in all fields of Engineering. Because these techniques enable us results with high accuracy in less time. Digital Elevation Model (DEM) is one of the most effective models, to delineate stream network map with flow direction, stream density and watersheds. The rainfall runoff is estimated by using Lacy’s and Rational formula. To identify the feasible locations for excess precipitation water to the ground water regime by the help of Rain Water Harvesting systems (RWH), evaluate total recharge potential through these systems and its impact on ground water regime. This research paper provides a scientific approach to arrest the maximum possibility of precipitation runoff during rainfall event and also the conservation of water with ground water recharge, in the area of studied.