Ground Water Potential Zones in the Hardrock Area, ApplyingRS, GIS & ERS Techniques, Gangtok, Sikkim Himalayas

摘要

This paper attempts to find out with the help of modern techniques like RS, GIS and ERS(RemoteSensing, Geographical Information System and Electrical Resistivity Survey) together with the water bearing andholding capacity of porous, permeable, saturated geological formation in the hard rock area. Here underlyinggeological structures have a good storage potentiality and this is mainly unconfined or semi- confined in nature.This low cost technique is highly useful without involving costly, time consuming and hazardous profiling,sounding and logging in highly inclined hard rock surface of Gangtok town and surroundings and hence veryuseful for tapping vast under ground water resource for the over all benefit of the local people as well as tourists.