• Mr. Puli Venkata Nagaraja

Groundwater is an important resource contributing significantly in total annual supply. However, overexploitation has depleted groundwater availability considerably and also led to land subsidence at some places. Assessing the potential zone of groundwater recharge is extremely important for the protection of water quality and the management of groundwater systems. Groundwater potential zones are demarked with the help of remote sensing and Geographic Information System (GIS) techniques. In this study a standard methodology is proposed to determine groundwater potential using integration of RS & GIS technique. The composite map is generated using GIS tools. The accurate information to obtain the parameters that can be considered for identifying the groundwater potential zone such as geology, slope, drainage density, land use and land cover are generated using the satellite data and survey of India (SOI) toposheets of scale 1:50000. It is then integrated with weighted overlay in ArcGIS. Suitable ranks are assigned for each category of these parameters. For the various units, weight factors are decided based on their capability to store groundwater. The groundwater potential zones are classified into five categories like very poor, poor, moderate, good & excellent. The use of suggested methodology is demonstrated for a selected study area in and around Rajampet in Kadapa district. This groundwater potential information will be useful for effective identification of suitable locations for extraction of water, for sustainable usage of ground water.

Ground water potential zones, ArcGIS, IIRS, DEM, Toposheets, Thematic maps.

"IDENTIFICATION AND DELINEATION OF GROUND WATER POTENTIAL ZONES IN AND AROUND RAJAMPET BY USING REMOTE SENSING AND GIS TECHNIQUES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 9, page no.634-648, September-2018, Available :http://www.jetir.org/papers/JETIR1809736.pdf

"IDENTIFICATION AND DELINEATION OF GROUND WATER POTENTIAL ZONES IN AND AROUND RAJAMPET BY USING REMOTE SENSING AND GIS TECHNIQUES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 9, page no. pp634-648, September-2018, Available at : http://www.jetir.org/papers/JETIR1809736.pdf