International Journal of Earth Sciences and Engineering

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In the present study, an attempt is made to simulate the current groundwater level in the Ghataprabha sub-basin (Krishna basin) in southern India. For this purpose, a single layered aquifer was conceptualized using Visual MODFLOW Flex ver.14.2. Model calibration was carried out using Parameter Estimation (PEST), with R2, RMSE and NRMSE as model evaluation criteria. Model behaved well with the value of 0.99, 6 m and 2.13% for R2, RMSE and NRMSE respectively. Groundwater modelling results showed that there is an increase of 1.46 m of groundwater level in 5 years. Incorporating the increasing trend of groundwater level in planning water resource projects would be fruitful.

Keywords

Groundwater, Ghataprabha, PEST, Visual MODFLOW FLEX.
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