Artificial groundwater recharge is becoming increasingly necessary as growing population require more water and as more stores is needed to save water in times of surplus for use in time of shortage. The present investigations of artificial recharge zones were carried out in H.D.Kote taluk of Mysore district, Karnataka, India. It lies between 11044’ and 120 08’ North Latitude and between 76008’ and 76033’ East Longitude covered under the Survey of India toposheet numbers are 57D/7, 57D/11, 57D/4, 57D/8, 57D/12, 58A/1, 58A/5 and 58A/6. The total geographical area of the taluk is 1618sq.kms. The area is an undulating terrain with average annual rainfall of 904mm. Various thematic maps such as Land use/Land cover, geomorphology, geology, drainage density etc. were prepared from the satellite image and all the five layers get integrated in the GIS platform through weighted index overlay analysis. Criteria for GIS analysis have been defined on the basis of groundwater conditions and appropriate rank and weightage has been assigned to each information layer. Finally based on cumulative weighted value, groundwater recharges zones have been selected and classified into suitable, mod-erately suitable and unsuitable respectively. The groundwater prospect map is a systematic effort and has been prepared con-sidering major controlling factors, which influence the water yield and quality of groundwater. The map depicts hydrome-teorological aspects, which are essential as basis for planning and execution of groundwater exploration. The present infor-mation, depicted in the form of a prospect map would provide first hand information to local authorities and planners about the areas suitable for searching groundwater followed by its suitable exploration based on information given for type of well depth, water quality and success rate of wells....
Authors: Mohammad Subhan Lone, D.Nagaraju, Mahadavesamy.G.