Identification of groundwater potential zones using remote sensing and GIS techniques, in Muguru Addahalla watershed, Mysore and Chamarajnagar districts, Karnataka, India

Groundwater recharge from surface water sources is an essential aspect in any watershed or a hydrological unit. For any small scale groundwater assessment, experimental approaches are usually adopted. However, recharge into aquifers depends on several hydrogeological factors on a regional scale analysis; groundwater assessment is conducted in a comprehensive approach considering all the geospatial data of different contributing factors. These factors include geomorphological, geological and structural elements like lineaments, drainage frequency, drainage density, lithology, land use and land cover. This study has been conducted with an integrated approach to identify the groundwater potential of the area, and the factors influencing groundwater recharge. The study has shown that the prevailing groundwater conditions are very good along the stream networks and the remaining zones show moderate to poor groundwater resources. It is also found that for such an integrated study, the tools and techniques of remote sensing and GIS are more useful