Simulation of spatial and temporal trends in nitrate concentrations at the regional scale in the Upper Dyle basin, Belgium
| Autor: | Alain Dassargues, Serge Brouyère, Emilie César, Philippe Orban, Samuel Wildemeersch, Simon Damien Carrière |
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| Přispěvatelé: | Univ Liege, ArGEnCo, GEO3, B-4000 Liege, Belgium, Partenaires INRAE, Environnement Méditerranéen et Modélisation des Agro-Hydrosystèmes (EMMAH), Avignon Université (AU)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
MODELING GROUNDWATER
Groundwater flow AGRICULTURE FLOW [SDV]Life Sciences [q-bio] Aquifer AQUIFER Nitrate GROUNDWATER RESOURCES chemistry.chemical_compound Water balance Belgium Earth and Planetary Sciences (miscellaneous) Water Science and Technology Hydrology CALIBRATION geography geography.geographical_feature_category Hydrogeology Groundwater recharge WetSpass Spatially-distributed recharge 6. Clean water SOLUTE TRANSPORT CONTAMINATION chemistry Nitrate transport [SDE]Environmental Sciences Environmental science RECHARGE Groundwater modelling METHODOLOGY Groundwater |
| Zdroj: | Hydrogeology Journal Hydrogeology Journal, Springer Verlag, 2014, 22 (5), pp.1087-1100. ⟨10.1007/s10040-014-1124-2⟩ |
| ISSN: | 1431-2174 1435-0157 |
| DOI: | 10.1007/s10040-014-1124-2⟩ |
| Popis: | International audience; Models are the only tools capable of predicting the evolution of groundwater systems at a regional scale, by taking into account a large amount of information. This study presents the association of a water balance model (WetSpass) with a groundwater flow and solute transport model (SUFT3D, saturated and unsaturated flow and transport in 3D) in order to simulate the present and future groundwater quality in terms of nitrate in the Upper Dyle basin (439 km(2)) Belgium. The HFEMC (hybrid finite element mixing cell) method implemented in the SUFT3D code is used to model groundwater flow and nitrate transport. Spatially distributed recharge, modelled with WetSpass, is considered for prescribing the recharge to the groundwater flow model. The feasibility of linking the WetSpass model with the finite-elements SUFT3D code is demonstrated. Time evolution and distribution of nitrate concentration are then simulated using the calibrated model. Nitrate inputs are spatially distributed according to land use. The spatial simulations and temporal trends are compared with previously published data on this aquifer and show good results. |
| Databáze: | OpenAIRE |
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