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Subsidence related to groundwater pumping for breweries in Merchtem area (Belgium), highlighted by Persistent Scaterrer Interferometry

Author

Listed:
  • Pierre-Yves Declercq
  • Pierre Gerard
  • Eric Pirard
  • Daniele Perissin
  • Jan Walstra
  • Xavier Devleeschouwer

Abstract

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.

Suggested Citation

  • Pierre-Yves Declercq & Pierre Gerard & Eric Pirard & Daniele Perissin & Jan Walstra & Xavier Devleeschouwer, 2017. "Subsidence related to groundwater pumping for breweries in Merchtem area (Belgium), highlighted by Persistent Scaterrer Interferometry," ULB Institutional Repository 2013/261783, ULB -- Universite Libre de Bruxelles.
    • Handle: RePEc:ulb:ulbeco:2013/261783
    Note: SCOPUS: ar.j
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    Cited by:

    1. Ekrem Saralioglu, 2022. "Mapping surface deformation using SNAP-StaMPS after Seferhisar-Izmir earthquake," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 111(1), pages 687-708, March.
    2. Salman Ahmadi & Reza Soodmand Afshar & Mohammad Fathollahy & Kamran Nobakht Vakili, 2023. "Identification of land subsidence hazard in asadabad plain using the PS-InSAR method and its relationship with the geological characteristics," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 117(1), pages 1157-1178, May.

    More about this item

    Keywords

    Groundwater pumping; InSAR; PSInSAR; Subsidence; Uplift;
    All these keywords.

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