Hydrogeological environment of an area includes surface and subsurface water resources. Groundwater is continuously getting recharged by surface water sources and rainfall. Recharge and discharge of an area can be reflected by water-table rise and drawdown. Water table of an area represents the groundwater strategy in the formation and majorly depends on the amount of precipitation. An attempt is carried out to analyze the correlation between rainfall and water table in arid climatic condition within the Gulbarga watershed, Karnataka, India. Rainfall and water-table data were collected from Department of Mines and Geology, Government of Karnataka, which consists of information from 2001 to 2011. Month-wise data are processed into distinctive four seasonal data, namely winter, summer, monsoon and post-monsoon. The rainfall data are analyzed, and accordingly they have been classified as good year and bad year depending upon the amount of precipitation. The study focuses on the need of rainwater harvesting and artificial recharge structures to improve groundwater resource sustainability for future generation.
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