Reference : Geophysics From Terrestrial Time-Variable Gravity Measurements
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
Geophysics From Terrestrial Time-Variable Gravity Measurements
Van Camp, Michel [> >]
de Viron, Olivier [> >]
Watlet, Arnaud [> >]
Meurers, Bruno [> >]
Francis, Olivier mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit]
Caudron, Corentin [> >]
Reviews of Geophysics
[en] Time variable gravity ; Ocean/Earth/atmosphere/hydrosphere/cryosphere interactions ; Seismic cycle related deformations ; Hydrogeophysics ; Volcano monitoring ; time-varying gravity ; terrestrial measurements ; gravimeter ; tectonics ; hydrogeology ; volcano
[en] In a context of global change and increasing anthropic pressure on the environment, monitoring the Earth system and its evolution has become one of the key missions of geosciences. Geodesy is the geoscience that measures the geometric shape of the Earth, its orientation in space, and gravity field. Time-variable gravity, because of its high accuracy, can be used to build an enhanced picture and understanding of the changing Earth. Ground-based gravimetry can determine the change in gravity related to the Earth rotation fluctuation, to celestial body and Earth attractions, to the mass in the direct vicinity of the instruments, and to vertical displacement of the instrument itself on the ground. In this paper, we review the geophysical questions that can be addressed by ground gravimeters used to monitor time-variable gravity. This is done in relation to the instrumental characteristics, noise sources, and good practices. We also discuss the next challenges to be met by ground gravimetry, the place that terrestrial gravimetry should hold in the Earth observation system, and perspectives and recommendations about the future of ground gravity instrumentation.
Researchers ; Professionals ; Students ; General public

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