Reference : Hydrogeological investigations at the Membach station, Belgium, and application to corre...
Scientific journals : Article
Engineering, computing & technology : Geological, petroleum & mining engineering
http://hdl.handle.net/2268/3507
Hydrogeological investigations at the Membach station, Belgium, and application to correct long periodic gravity variations
English
Van Camp, Michel [Observatoire Royal de Belgique - ORB > Seismologie > > > >]
Vanclooster, Marnik [Université Catholique de Louvain > Environmental Sciences and Land Use Planning > > > >]
Crommen, O. [ULg > 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 - ULg > Département Argenco : Secteur GEO3 > Hydrogéologie & Géologie de l'environnement >]
2006
Journal of Geophysical Research
American Geophysical Union
111
B10
Yes (verified by ORBi)
International
0148-0227
Washington
DC
[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
http://hdl.handle.net/2268/3507
10.1029/2006JB004405
http://www.agu.org/pubs/crossref/2006/2006JB004405.shtml
We thank AGU. The original paper is available at http://www.agu.org/pubs/crossref

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