Interaction of Large Depression Storage with an Aquiferby Asish Kumar Bhar, Natl Inst of Hydrology, India,
Govinda Chandra Mishra, Natl Inst of Hydrology, India,
Abstract: In the south-western part of Ghaggar basin, there exist an isolated but interconnected series of nineteen aeolian sand dune depressions in Sriganganagar district of Rajasthan (India) which are used for storing flood water. Due to impoundment of water in depressions, the waterlogging in isolated patches in the nearby area has been observed within few years from the first impoundment and the menace is increasing. In this paper, a linear mathematical model has been developed using Kernel generator to study the interaction between depression storage and the aquifer. As the recharge from depression storage continues after filling up the depression in monsoon, the water level of the depression storage goes on declining with time. The variation of the recharge rate under such time variant depression water level has been modelled. The model can predict the ground water evolution and the water level in the depression with time.
Subject Headings: Water storage | Aquifers | Hydrologic models | Mathematical models | Water level | Model analysis | Floods | Mathematics | India | Asia | Rajasthan
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