Reference : Hydrogeological investigations at the Membach station, Belgium and application to cor...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/10993/834
Hydrogeological investigations at the Membach station, Belgium and application to correct long periodic gravity variations
English
Van Camp, M. [Seismology, Royal Observatory of Belgium, Brussels, Belgium]
Vanclooster, M. [Department of Environmental Sciences and Land Use Planning, Université catholique de Louvain, Louvain-la-Neuve, Belgium]
Crommen, O. [Hydrogeology and Environmental Geology, University of Liège, Belgium]
Petermans, T. [Seismology, Royal Observatory of Belgium, Brussels, Belgium]
Verbeeck, K. [Seismology, Royal Observatory of Belgium, Brussels, Belgium]
Meurers, B. [Hydrogeology and Environmental Geology, University of Liège, Belgium]
van Dam, Tonie mailto [European Center for Geodynamics and Seismology]
Dassargues, A. [Institute of Meteorology and Geophysics, University of Vienna, Austria]
2006
Journal of Geophysical Research
American Geophysical Union
111
1-5
Yes (verified by ORBilu)
International
0148-0227
2156-2202
[en] superconducting gravimeter ; hydrogeology ; soil moisture
[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.
Researchers
http://hdl.handle.net/10993/834
10.1029/2006JB004405
2.953 in the 2007

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