Abstract
The Geospatial Technologies like Remote Sensing (RS) and Geographic Information System (GIS) have been playing vital role in capable forecasting and management of imperative groundwater resources in the emerging nations. In recent times, the geospatial technologies like RS, GIS and Multi Influence Factor (MIF) methodology are helpful in identifying groundwater potential zone. For the present study, the geospatial technology is used to prepare various thematic maps such as Land Slope, Geomorphology, Geology, Soil, Drainage Density, Lineament Density, Landuse/Landcover, Hydrogeomorphology, and Annual consideration of the valuation of groundwater assets for the semi-arid region in and around Bommanahal Mandal of Anantapur District in Andhra Pradesh, Southern India. As a part of the study eight thematic layers and their functions have been designed applicable weights at the Saaty׳s scale according to their comparative connotation in groundwater occurrence. The designed weights are normalized by using AHP (Analytic Hierarchy Process) MIF techniques and eigenvector method to various thematic layers and their features. Further to create a groundwater potential map the chosen thematic maps are integrated by weighted linear grouping method in a GIS environment. Based on the groundwater potential index values, the study area is classified into four different groundwater potential zones such as ‘good’, ‘moderate to good’, ‘moderate’ and ‘poor’. The new recharge structures have proposed to fulfill the demand of groundwater to expand the scope of groundwater for future generations. Considering the overlay analysis of geomorphology and drainage layer execution through GIS technologies, the appropriate sites for artificial recharge structures have been identified.
Highlights
Rajasekhar et al / Data in Brief 19 (2018) 462–474 demand of groundwater to expand the scope of groundwater for future generations
Artificial Recharge structures are suggested to implement of groundwater management for future generation. 76° 51' 3000 to 77° 8' 30'' N and 14° 52' 0'' to 15° 25' 30'' E The data are available with this article
The data described as geospatial technologies is precise, concise and repetitive analysis of the earth's features in different bands of the electromagnetic spectrum
Summary
The study area is located in the Survey of India Toposheet Nos: 57A/16, 57 B/13, 57 E/4 and 57 F/1 on 1:50,000 scale and lies between North longitudes 76° 51' 30’’ to 77° 8' 30'' and East latitudes 14° 52' 0'' to 15° 25' 30'' (Fig. 1).It comprises a total geographical area of 305.88 sq km. In order to identify artificial recharge constructions in the study area, multi-parametric dataset comprising satellite data information and topographical data maps which include SOI toposheets were used. To prepare the drainage density map of the study area, primarily, the drainage network for the study region was digitized from the SOI toposheets in 1:50,000 scale. For the preparation the slope map, elevation contours (10 m interval) had been digitized from the SOI (Survey of India) toposheets, and a digital elevation model (DEM) of the study region is generated. As mentioned above the eight thematic layers, viz., Land slope, Geomorphology, Geology, Soil, Drainage, drainage density, Landuse /land cover, Lineament density, Hydrogeomorphology are viewed for the delineation of artificial recharge zones.
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