Spatial Assessment Of Ground Water Vulnerability Using Gis A Case Study On Thiruvannamalai District, Tamilnadu, India

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SPATIAL ASSESSMENT OF GROUND WATER VULNERABILITY USING GIS-A CASE STUDY ON THIRUVANNAMALAI DISTRICT,TAMILNADU,INDIA Praveen Kumar.G∗,Kaviarasan.M,G.Rashmi, P.Geetha Remote Sensing and Wireless Sensor Networks Division, Centre for Excellence in Computational Engineering and Networking, Amrita Vishwa Vidyapeetham University,Coimbatore-641112. praveen16003@gmail.com Commission VI, WG VI/4 KEY WORDS: Water Quality,Groundwater contamination,Physico-chemical parameter, GIS,Thiruvannamalai,WHO ABSTRACT: Water is indispensable for sustaining life on earth. Millions of people lack access to clean water owing to geographical and anthro- pogenic factors. Ground water contamination has always been a reason of concern and it is very…show more content…
The ground water is recharge is the amount of water that will percolate down to the water ta- ble.It greatly depends on rainfall,nature of soil,rocks etc. It has been recognized that the quality of ground water is of nearly equal importance to quantity. As greater development and use of ground water continues, combined with the reuse of water, quality suffers unless consideration is given to protecting it (Ad- hikar et al., 2013). The Remote Sensing Technology and Geo- graphical Information System (GIS) has enabled data collection and subsequent assessment possible even in the most inaccessi- ble areas thus helping in effective study of ground water. GIS helps in creating geographical databases and thematic models of ground water depth, quality etc . Ground water contains a wide variety of dissolved inorganic chemical constituents in various concentrations resulting from chemical and biochemical interac- tions between water and geological materials. Inorganic contam- inants include salinity, chloride, flouride, nitrate, iron and arsenic are important in determining the suitability of ground water for drinking purposes (Central Ground Water Board Ministry of Wa- ter

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