Academic Journal
Spatiotemporal modelling of groundwater flow and nitrate contamination in an agriculture-dominated watershed
| العنوان: | Spatiotemporal modelling of groundwater flow and nitrate contamination in an agriculture-dominated watershed |
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| المؤلفون: | Eryiğit, Mirac, Engel, Bernard |
| المساهمون: | BAİBÜ, Mühendislik Fakültesi, Çevre Mühendisliği Bölümü, orcid:0000-0002-7035-7078, Eryiğit, Mirac |
| بيانات النشر: | INT SOC ENVIRON INFORM SCI |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Nitrate Contamination, Groundwater Contaminant Transport, Groundwater Flow, Land-Use, Transport, Vulnerability |
| الوصف: | In this study, both groundwater flow and nitrate transport were simulated in the Upper White River Watershed (Indiana, US) dominated by agricultural production. MODFLOW and MT3DMS were used for groundwater flow and contaminant transport modelling of the watershed under transient conditions. The input files for MODFLOW and MT3DMS were obtained by the GMS groundwater simulator. Model simulations were performed for 25 years between 1995 similar to 2019 with one-year intervals. Groundwater observation data (hydraulic heads and nitrate concentrations) for 1995 similar to 2013 and 2014 similar to 2019 were used for the model calibration and validation, respecttively. A heuristic optimization model based on the modified Clonal Selection Algorithm (a class of Artificial Immune Systems) was improved for calibration of the groundwater contaminant transport model. MODFLOW and MT3DMS were linked with the algorithm and run in MATLAB. Based on land use/cover, recharge and recharge nitrate concentrations were calibrated while other groundwater parameters (storage, porosity, longitudinal dispersivity, and denitrification rate coefficients) were calibrated for 7 aquifers. Furthermore, the models were run for different scenarios representing possible future conditions. The results demonstrated that the models performed well in terms of the fate and transport of nitrate in the Upper White River Watershed. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 1726-2135 1684-8799 |
| Relation: | 1059B 191800383; Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı; Journal of Environmental Informatics; Eryiğit, M., & Engel, B. (2022). Spatiotemporal Modelling of Groundwater Flow and Nitrate Contamination in An Agriculture-Dominated Watershed. Journal of Environmental Informatics, 39(2).; http://dx.doi.org/10.3808/jei.202100470; https://hdl.handle.net/20.500.12491/11002; 39; 125; 135 |
| DOI: | 10.3808/jei.202100470 |
| الاتاحة: | https://hdl.handle.net/20.500.12491/11002 https://doi.org/10.3808/jei.202100470 |
| Rights: | info:eu-repo/semantics/closedAccess |
| رقم الانضمام: | edsbas.3E8BB012 |
| قاعدة البيانات: | BASE |
| تدمد: | 17262135 16848799 |
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| DOI: | 10.3808/jei.202100470 |