Article (Scientific journals)
Simulation of spatial and temporal trends in nitrate concentrations at the regional scale in the Upper Dyle basin, Belgium
César, Emilie; Wildemeersch, Samuel; Orban, Philippe et al.
2014In Hydrogeology Journal, 22, p. 1087-1100
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Keywords :
groundwater modelling; spatially-distributed recharge; WetSpass; nitrate
Abstract :
[en] Models are the only tools capable of predicting the evolution of groundwater systems at a regional scale in 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 km², Belgium). The HFEMC (« Hybrid Finite Element Mixing Cell ») method implemented in the SUFT3D code is used to model groundwater flow and nitrate transport. A spatially-distributed recharge modelled with WetSpass is considered for prescribing the recharge to the groundwater flow model. The feasibility of linking 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.
Research center :
Aquapôle - ULiège
Disciplines :
Geological, petroleum & mining engineering
Author, co-author :
César, Emilie;  Université de Liège - ULiège > ArGEnCo > Hydrogéologie & Géologie de l'Environnement
Wildemeersch, Samuel ;  Université de Liège - ULiège > ArGEnCo > Hydrogéologie & Géologie de l'Environnement
Orban, Philippe  ;  Université de Liège - ULiège > Département ArGEnCo > Hydrogéologie & Géologie de l'environnement
Carriere, Simon;  Université de Liège - ULiège > Département ArGEnCo > Hydrogéologie & Géologie de l'environnement
Brouyère, Serge  ;  Université de Liège - ULiège > Département ArGEnCo > Hydrogéologie & Géologie de l'environnement
Dassargues, Alain  ;  Université de Liège - ULiège > Département ArGEnCo > Hydrogéologie & Géologie de l'environnement
Language :
English
Title :
Simulation of spatial and temporal trends in nitrate concentrations at the regional scale in the Upper Dyle basin, Belgium
Publication date :
28 March 2014
Journal title :
Hydrogeology Journal
ISSN :
1431-2174
Publisher :
Springer Science & Business Media B.V., New York, United States - New York
Volume :
22
Pages :
1087-1100
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 16 July 2014

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