Geospatial Modeling of Rain Fall Distribution and Ground Water Fluctuation Using GIS: A Case Study for Hard Rock Terrain of Upper Ponniyar Watershed, Tamil Nadu, India

Abstract

Ground water is an important natural source of drinking water for many people around the world. Further it is considered to be an essential element to maintain a proper balance between ground water fluctuation and rainfall distribution. Due to irrigation, urbanization and industrialization, the ground water level has declined to a larger extend. Hence in the present work an attempt has been made to analyse the groundwater fluctuation by taking the upper Ponniyar watershed as a study area using geographical information system (GIS). Also a correlative study has been made between the rainfall distribution and ground water fluctuation during the period from 1992 to 2012.