Reference : Hydrogeological investigations at the Membach station, Belgium, and application to co...
Scientific journals : Article
Engineering, computing & technology : Geological, petroleum & mining engineering
Hydrogeological investigations at the Membach station, Belgium, and application to correct long periodic gravity variations
Van Camp, Michel [Observatoire Royal de Belgique - ORB > Seismologie > > > >]
Vanclooster, Marnik [Université Catholique de Louvain > Environmental Sciences and Land Use Planning > > > >]
Crommen, O. [Université de Liège - ULiège > Département Argenco : Secteur GEO3 > Hydrogéologie et Géologie de l'Environnement > >]
Petermans, T. [Observatoire Royal de Belgique - ORB > > Séismologie > > >]
Verbeeck, K. [Observatoire Royal de Belgique - ORB > > Séismologie > > >]
Meurers, B. [University of Vienna > Institute of Meteorology and Geophysics > > > >]
van Dam, T. [European Center for Geodynamics and Seismology and Natural History Museum of Luxembourg > > Géophysique > > >]
Dassargues, Alain mailto [Université de Liège - ULiège > Département Argenco : Secteur GEO3 > Hydrogéologie & Géologie de l'environnement >]
Journal of Geophysical Research
American Geophysical Union
Yes (verified by ORBi)
[en] hydrogeological conditions ; influence on gravity measurements ; long periodic gravity variations ; Membach gravimetry station
[en] A comprehensive hydrogeological investigation regarding the influence of variations in local and regional water mass on superconducting gravity measurements is presented for observations taken near the geodynamic station of Membach, Belgium. Applying a regional water storage model, the gravity contribution due to the elastic deformation of the Earth was derived. In addition, the Newtonian gravity effect induced by the local water mass variations was calculated, using soil moisture observations taken at the ground surface (about 48 m above the gravimeters). The computation of the gravimetric effect is based on a digital elevation model with spatially discretized rectangular prisms. The obtained results are compared with the observations of a superconducting gravimeter (SG). We find that the seasonal variations can be reasonably well predicted with the regional water storage model and the local Newtonian effects. Shorter-period effects depend on the local changes in hydrology. This result shows the sensitivity of SG observations to very local water storage changes.
Aquapôle - AQUAPOLE
Researchers ; Professionals
We thank AGU. The original paper is available at

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