GIS Point Scoring for Good Water Bearing Zone Identification at Sweta River, Kallar Basin, Tamil Nadu, India

Gurugnanam, B.; Prabaharan, N.; Vasudevan, S.; Sulochanasekhar; Lingeswara, Rao S. V.
October 2008
ICFAI Journal of Earth Sciences;Oct2008, Vol. 2 Issue 4, p47
Academic Journal
In this paper, an attempt has been made at Sweta sub basin, Kallar basin, Tamil Nadu, where sites for groundwater exploration have been demarcated applying geophysics and GIS technique using Arc GIS software. In this paper, the geophysical output was taken to GIS platform, where the point scoring of the individual theme followed by the final map was assessed to predict the water bearing formation. The total work is executed with the weighted rating analysis in GIS environment. Spatial and non-spatial data was analyzed in GIS in a quick and efficient way. The term 'geographic' in GIS refers to the locational attributes which define the spatial positioning of the piece of information on the face of the earth. The advent of digital computers with high data processing speed and the development of analytical tools in GIS have helped in handling geographically referenced data with ease and flexibility. Of late, computer-aided GIS has become a reality. Using of GIS in hydrogeology is only at its inception, but there have been cases of some successful applications.


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