Article (Scientific journals)
Subsidence related to groundwater pumping for breweries in Merchtem area (Belgium), highlighted by Persistent Scaterrer Interferometry
Declercq, Pierre-Yves; Gerard, Pierre; Pirard, Eric et al.
2017In International Journal of Applied Earth Observation and Geoinformation, 63, p. 178 - 185
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Keywords :
Subsidence
Abstract :
[en] ERS, ENVISAT and TerraSAR-X Synthetic Aperture Radar scenes covering the time span 1992–2014 were processed using a Persistent Scatterer technique to study the ground movements in Merchtem (25 km NW of Brussels, Belgium). The processed datasets, covering three consecutive time intervals, reveal that the investigated area is affected by a global subsidence trend related to the extraction of groundwater in the deeper Cambro-Silurian aquifer. Through time the subsidence pattern is reduced and replaced by an uplift related to the rising water table attested by piezometers located in this aquifer. The subsidence is finally reduced to a zone where currently three breweries are very active and pump groundwater in the Ledo-Paniselian aquifer and in the Cambro-Silurian for process water for the production.
Disciplines :
Geological, petroleum & mining engineering
Author, co-author :
Declercq, Pierre-Yves
Gerard, Pierre
Pirard, Eric  ;  Université de Liège - ULiège > Département ArGEnCo > Géoressources minérales & Imagerie géologique
Perissin, Daniele
Walstra, Jan
Devleeschouwer, Xavier
Language :
English
Title :
Subsidence related to groundwater pumping for breweries in Merchtem area (Belgium), highlighted by Persistent Scaterrer Interferometry
Publication date :
2017
Journal title :
International Journal of Applied Earth Observation and Geoinformation
ISSN :
1569-8432
eISSN :
1872-826X
Publisher :
Elsevier Science, Amsterdam, Netherlands
Volume :
63
Pages :
178 - 185
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 19 September 2017

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