Abstract
The present work deals with the assessment of groundwater potential zones and their suitability for drinking in the severely drought affected villages of Vemula mandal of Cuddapah District, Andhra Pradesh. This study is based on remote sensing and GIS approach. In this approach the IRS P6 LISS III Data (23.5 m Spatial Resolution) with Path: 100; Row: 063 of Indian Remote Sensing Satellite, Resourcesat IRS-P6 LISS-III has been utilized to analyse the onscreen interpretation and delineated different geomorphological units, lithological formations and geological structures. By integrating the above said parameters the hydrogeomorphological map is prepared on 1:50,000 scale. The study area is characteristically occupied by the Papaghni and Chitravati group of rocks. In the present study, the lithological formations on the basis of their genesis have been classified as fluvial, denudational and structural. Majority of lineaments are trending in NE-SW and NW-SE directions. The fluvial landforms namely valley fill moderate and valley have good groundwater prospects while shallow weathered buried pediplain has moderate to poor groundwater prospects. The chemical quality parameters of groundwater samples have indicated that the water samples are found to be suitable for drinking, agricultural, and industrial purposes.
Highlights
India’s water resources are stressed and depleting rapidly in line with urbanization, population increases
The fluvial landforms namely valley fill moderate and valley have good groundwater prospects while shallow weathered buried pediplain has moderate to poor groundwater prospects
The Remote Sensing and GIS techniques provided information pertaining to hydrogeomorphoic features was very useful in the understanding the nature and water potentiality of different landforms
Summary
India’s water resources are stressed and depleting rapidly in line with urbanization, population increases. The drastic increase in population, urbanization and modern land use applications and demands for water supply has limited the globally essential groundwater resources in terms of both its quality and quantity. The groundwater regime of any area is largely controlled by parameters like lithology, structures, geomorphology, slope, land use/land pattern etc. These features are inter-related and important for understanding the hydrological set-up of any area [14] [15]. The relevant baseline information on such features can be generated and analyzed as an individual thematic layer in the GIS environment [16] [17] These thematic layers, generated by using the remote sensing data can be integrated in a GIS framework and further analyzed by using models developed with logical condition to demarcate the different groundwater potential zones [15] [18]. A study has been undertaken to understand the significance of remote sensing and GIS techniques in hydrogeomorphology and ground water quality of Tummalapalle area, Cuddapah District
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