Publication: Delineation of groundwater potential zone and site suitability of rainwater harvesting structures using remote sensing and in situ geophysical measurements
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Date
2021
Journal Title
Advances in Remote Sensing for Natural Resource Monitoring
Journal ISSN
Volume Title
Publisher
wiley
Abstract
The present situation of groundwater tables is falling at a rapid rate, because regular withdrawal of groundwater is high compared to the recharge rate. This study focuses on the delineation of a groundwater potential zone in Lalganj Ajhara block, District Pratapgarh, Uttar Pradesh, using in situ vertical electric survey data, remote sensing (RS), and geographic information system (GIS). Present research covers the spatial analysis of different thematic layers generated through satellite images and field data for the identification of suitable sites for rainwater harvesting structures within the study area. A Schlumberger array is generated through the geotechnical field survey and soil depth analysis is done for three cross-section profiles which are generated through the sample locations. Sentinel-2A data along with the digital elevation model (DEM) are used to prepare different thematic layers, and density analysis is done using GIS tools. The groundwater potential is estimated using multi-criteria overlay analysis and using in situ measurements. The site suitability analysis is done by estimating probable location of check dams, desilting points, dug well, and recharge pit within the study area. � 2021 John Wiley & Sons Ltd. All rights reserved.
Description
Keywords
Geophysical survey, Groundwater potential zone, Hydro-geomorphology, Rainwater harvesting, Remote sensing