Assessing groundwater potential zones using remote sensing, GIS and MIF techniques: Renigunta area, Andhra Pradesh

Groundwater potential zones of Renigunta area have been evaluated using an integration of remote sensing, GIS and MIF techniques. Survey of India (SOI) toposheets, IRS-R2 LISS-IV satellite imagery and supplementary datasets from various organizations were used to generate different thematic maps such as geology, geomorphology, drainage density, lineament density, soils, slope and land use/land cover. Then, each thematic map and their subclasses were assigned a weight and rating by using multi influencing factor (MIF) technique and integrated using the weighted overlay process in GIS. The study results into four categories viz., poor 46.46 km(2) (21.75%), moderate 109.99 km(2) (51.49%), good 51.62 km(2)(24.17%) and very good 5.53 km(2)(2.59%) groundwater potential zones. The final groundwater potential zones map may be useful for policymakers in planning and management scenario of groundwater resources of the study area.