With global warming and over-exploitation of water resources as a result of population growth and other challenges, several studies are being conducted around the world to restore a balance of current water resources and consumption. This research is based on a 366-square-kilometer watershed surrounding the Meghadrigedda reservoir in the Visakhapatnam district of Andhra Pradesh, India, on a 1:50,000 scale 65O/1 SOI map. The watershed was divided into nine sub-watersheds, and the study area's hydrogeomorphology, drainage, drainage density, slope, NDVI, and NDWI were all completed using Landsat data 2010 and Sentinel data 2020 in ArcGIS 10.0. All of the villages in the catchment rely heavily on groundwater for irrigation, drinking, and personal use. The decline in surface water and groundwater as a result of increasing built-up area, pond siltation, and a reduction in the number of ponds was shown using change detection. In the watershed, large-scale anthropogenic activities are taking place. The government must reduce built-up activity and desilt the ponds to keep the monsoon water flowing. The study's findings can be used to plan and build a long-term basin area.
Usha Chirala,
Department of Geo-Engineering, Andhra University, Vishakhapatnam, India.
Please see the link here: https://stm.bookpi.org/CAGEES-4/article/view/7118
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