Multi-Influence Factor Method to Determine Groundwater Potential Zone using GIS and RS (Remote sensing) Techniques in Parts of Rajasthan, India.

The enormous groundwater demand globally have possessed a threat to groundwater security. Rajasthan being one of the water deficit states of India is pivotal to determine its groundwater potential zone for sustainability. Diverse thematic layers such as drainage density, landuse, rainfall, geology, geomorphology was prepared. The geomorphology, landuse, drainage and soil map was prepared using IRS-1D LISS satellite image. Through, appointing the relative weightage to the thematic maps the final groundwater potential map was prepared. A comparative analysis for the groundwater potential map and the groundwater level data was done for confirmation. The groundwater potential zone can be classified as high, medium or low. The positions of various existing wells along with the contour map of groundwater table can be draped with groundwater potential map. The groundwater table usually found flat over the regions of higher groundwater potential zones. Thus, with the increasing demography along with rising demand the wells should be laid over the area with higher potential. The remote sensing and GIS can be efficiently and smoothly used to determine the groundwater potential zones with suitable sites for well construction. Keywords: Groundwater sustainability, Remote Sensing, Geographic Information System, Thematic layers, Groundwater potential map.