Reference : Combining flux estimation techniques to improve characterization of groundwater–surfa...
Scientific journals : Article
Engineering, computing & technology : Geological, petroleum & mining engineering
http://hdl.handle.net/2268/170343
Combining flux estimation techniques to improve characterization of groundwater–surface-water interaction in the Zenne River, Belgium
English
Dujardin, Juliette mailto [Vrij Universitiet Brussels - VUB > Department of Hydrology and Hydraulic Engineering > > >]
Anibas, Christian [Vrij Universitiet Brussels - VUB > Department of Hydrology and Hydraulic Engineering > > >]
Bronders, Jan [Flemish Institute for Technological research - VITO > > > >]
Jamin, Pierre mailto [Université de Liège - ULiège > Département ArGEnCo > Hydrogéologie & Géologie de l'environnement >]
Hamonts, Kelly [Flemish Institute for Technological research - VITO > > > >]
Dejonghe, Winnie [Flemish Institute for Technological research - VITO > > > >]
Brouyère, Serge mailto [Université de Liège - ULiège > Département ArGEnCo > Hydrogéologie & Géologie de l'environnement >]
Batelaan, Okke [Flinders University > National Centre for Groundwater Reasearch and Training School of Environment > > >]
2014
Hydrogeology Journal
Springer Science & Business Media B.V.
Yes (verified by ORBi)
International
1431-2174
New York
NY
[en] Contamination ; Groundwater/surface-water relations ; Groundwater management ; Risk management ; Multiple methodology
[en] The management of urban rivers which drain contaminated groundwater is suffering from high uncertainties regarding reliable quantification of groundwater fluxes. Independent techniques are combined for estimating these fluxes towards the Zenne River, Belgium. Measured hydraulic gradients, temperature gradients in conjunction with a 1D-heat and fluid transport model, direct flux measurement with the finite volume point dilution method (FVPDM), and a numerical groundwater flow model are applied, to estimate vertical and horizontal groundwaterfluxes and groundwater–surface-water interaction. Hydraulic gradient analysis, the temperature-based method, and the groundwaterflow model yielded average verticalfluxes of–61,–45 and–40 mm/d, respectively. The negative sign indicates upwardflow to the river. Changes in exchangefluxes are sensitive to precipitation but the river remained gaining during the examined period. The FVPDM, compared to the groundwaterflow model, results in two very high estimates of the horizontal Darcyfluxes (2,600 and 500 mm/d), depending on the depth of application. The obtained results allow an evaluation of the temporal and spatial variability of estimated fluxes, thereby helping to curtail possible consequences of pollution of the Zenne River as final receptor, and contribute to the setup of a suitable remediation plan for the contaminated study site.
Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy
Flux-based Risk Assessment of Contaminant on Water resources and ECOsystems FRAC-WECO SD/TE/02
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/170343
10.1007/s10040-014-1159-4

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