Volume 26, Issue 3 (Fall 2022)                   jwss 2022, 26(3): 193-209 | Back to browse issues page

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Samadi G, Mousavi F, Karami H. Modeling of Malayer Aquifer by MODFLOW Groundwater Model and SWAT Surface Water Simulation Model. jwss 2022; 26 (3) :193-209
URL: http://jstnar.iut.ac.ir/article-1-4212-en.html
Semnan University , samadi.golmehr@semnan.ac.ir
Abstract:   (936 Views)
The impact of different management options on the region and the existing conditions can be evaluated with minimal cost and time to select the most practical case using various tools including mathematical models. In this study, the SWAT hydrological model was performed from 2009 to 2019 using climatic, hydrological, and hydrometric data in the Malayer catchment, and the final model was validated by SWAT-CUP. To reduce the amount of uncertainty in the input parameters to the MODFLOW model, using the values of surface recharge from the implementation of the SWAT hydrological model, quantitative modeling of Malayer aquifer was performed more reliably in GMS software by using MODFLOW model. After modeling the study area in the 2009-2018 period and calibrating the model in the years from 2018 to 2019, the mean values of absolute error (MAE) were 0.35-0.65 m, and root means square error (RMSE) was 0.62-0.94 m, which seems acceptable considering computational and observational heads equal to 1650 m. Results of water level changes in observation wells located in the Malayer region indicate that the groundwater level in the aquifer has decreased by an average value of 9.7 m in the 10-year study period.
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Type of Study: Research | Subject: Ggeneral
Received: 2021/09/18 | Accepted: 2021/12/20 | Published: 2022/12/1

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