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Integrated approach for assessing climate change impacts on a regional chalky aquifer in Belgium
Goderniaux, Pascal; Brouyère, Serge; Dassargues, Alain
2007In Changes in water resource systems: methodologies to maintain water security and ensure integrated management
 

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Keywords :
integrated model; groundwater; climate change impact; chalk aquifer; Belgium
Abstract :
[en] An integrated hydrological model was developed in order to study the potential effects of climate change on groundwater resources. This model considers most hydrological processes in a physically consistent way. More particularly, groundwater flows are modelled using a spatially distributed finite element approach. The river-aquifer interactions are explicitly taken into account in the model, as well as the spatial heterogeneity of the chalk geology characteristics. After a detailed calibration on the last 30 years and validation on recent periods, quantitative interpretations can be drawn from the ground¬water model results. Considering IPCC climate change scenarios, it appears that, on a multi-annual basis, most tested scenarios predict a decreasing trend in groundwater levels in the Geer Basin. These first results indicate that groundwater deficits may be expected in the future in Belgium. Moreover, at this stage of the study, this trend is computed for a very “optimistic” scenario, neglecting all other pressure changes on the groundwater resources (i.e. no change in land use and in pumping conditions).
Research center :
Aquapôle - ULiège
Disciplines :
Geological, petroleum & mining engineering
Author, co-author :
Goderniaux, Pascal ;  Université de Liège - ULiège > Département Argenco : Secteur GEO3 > Hydrogéologie & Géologie de l'environnement
Brouyère, Serge  ;  Université de Liège - ULiège > Département Argenco : Secteur GEO3 > Hydrogéologie & Géologie de l'environnement
Dassargues, Alain  ;  Université de Liège - ULiège > Département Argenco : Secteur GEO3 > Hydrogéologie & Géologie de l'environnement
Language :
English
Title :
Integrated approach for assessing climate change impacts on a regional chalky aquifer in Belgium
Publication date :
2007
Event name :
Symposium HS3006 at IUGG2007
Event organizer :
IAHS and IUGG
Event place :
Perugia, Italy
Event date :
July 2007
Audience :
International
Main work title :
Changes in water resource systems: methodologies to maintain water security and ensure integrated management
Publisher :
IAHS Press, Wallingford, United Kingdom
Collection name :
315
Pages :
100-106
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
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