ABSTRACT
An integrated approach was implemented using a geographic information systems (GIS)-based multi-criteria evaluation to identify the potential zones for artificial recharge of groundwater. This involved identification of various vital parameters that influence the mapping of potential zones and selection of suitable structures for recharge. A Landsat-8 image was used to produce thematic maps such as geomorphology, geology, land use/land cover and lineaments. Slope and drainage networks were derived from an ASTER Digital Elevation Model (DEM). Thematic layers such as soil, rainfall, groundwater fluctuation levels and aquifer characteristics were also prepared and weighed by a multi-criteria decision-making technique. These thematic layers were used in the integrated model for identification of potential groundwater recharge zones in the Bhavani micro-watershed, Erode district of Tamil Nadu.
