• Joydeep Paikray
• Dr. Pramod Chandra Sahu

Groundwater in comparison to surface water is the least affected by pollution, and it can be taken out according to requirement. As a result, exploitation of groundwater is increasing day by day because groundwater is a very good alternative to surface water. Surface water is insufficient, irregular and sometimes polluted in nature. So in many areas higher amount of groundwater extraction exceeds annual recharge, which results in lowering down of the groundwater table. Remote sensing data and the geographical information system (GIS) have become advance techniques in the field of groundwater research. In the present research, several groundwater potential zones for the calculation of groundwater accessibility in the Nilagiri block have been explained using Remote Sensing and GIS advanced techniques. Survey of India toposheets with the scale of 1:50,000 and LISS-III satellite imageries with the resolution of 30 meters are used to prepare several thematic layers viz. lithological map, slope map in degree, land-use land cover map, lineament map, lineament density map, drainage map, soil map, and geomorphological map. These maps were transformed into a raster format. The raster maps of these factors are allocated a fixed score and weight computed from multi influencing factor (MIF) technique. Moreover, each weighted thematic layer is statistically computed to get the groundwater potential zones. Thus, four different groundwater potential zones were identified, namely ‘Very Good’ ‘Good’, ‘Moderate’, and ‘Poor’.

Groundwater Potential, Remote Sensing &GIS, Weight Overlay Analysis.

"DELINEATION OF GROUND WATER POTENTIAL ZONES IN NILAGIRI BLOCK OF BALESWAR DISTRICT, ODISHA: A REMOTE SENSING AND GIS APPROACH", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 2, page no.542-550, February-2019, Available :http://www.jetir.org/papers/JETIR1902A77.pdf

"DELINEATION OF GROUND WATER POTENTIAL ZONES IN NILAGIRI BLOCK OF BALESWAR DISTRICT, ODISHA: A REMOTE SENSING AND GIS APPROACH", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 2, page no. pp542-550, February-2019, Available at : http://www.jetir.org/papers/JETIR1902A77.pdf