Simulation of Groundwater Level in Nahavand Plain Using MODFLOW

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Kakavand Yousef; Mozaffari Javad

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Journal Paper

Paper Information

Journal: Journal of Irrigation and Water Engineering Year:2023 | Volume:13 | Issue:51 Page(s): 305-319

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Information Journal Paper

Title

Simulation of Groundwater Level in Nahavand Plain Using MODFLOW

Author(s)

Kakavand Yousef | Mozaffari Javad | Issue Writer Certificate

Keywords

MODFLOW

aquifer

budget

Agriculture well

Abstract

Understanding the trends of groundwater level changes and its prediction can be important in water resources management. In this study, the simulation of groundwater level changes in Nahavand plain was performed using MODFLOW mathematical model and considering the parameters affecting the phenomenon. First, the calibration and validation process was performed over a statistical period of 120 months. Then, four scenarios (current harvest conditions and 10, 30 and 50% reduction in agricultural wells harvesting) were investigated to predict future groundwater level changes. The results indicate that the mathematical model used to simulate the Nahavand aquifer has 21% relative error of NRMSE, which confirms the proper modeling after considering the prediction process. It was also found that 0 and 10% scenarios would decrease groundwater level in the future. A 30% reduction in operating capacity leads to constant conditions and a reduction of more than 50% creates a positive balance in the long term.

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