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About Time Variations of Gravity
Melchior, P.; van Dam, Tonie; Francis, Olivier et al.
2001In Computational Seismology and Geodynamics
Peer reviewed
 

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Keywords :
European center for geodynamics and seismology (ECGS); Free-fall instruments; Gravity; Infer ice mass; Tidal gravimetry; Walferdange underground laboratory of geodynamics (WULG)
Abstract :
[en] Advances in gravity instrumentation have allowed for the determination of the absolute acceleration of gravity to a precision of 3–5 μGal and observations of tidally driven changes in gravity on the order of nanogals. With observations of gravity and changes in gravity at these levels of precision we are able to investigate problems such as the resonance of the Earth's liquid inner core, to discriminate between the various ocean tidal models, understand the effects of atmospheric pressure loading on gravity observations, and perhaps to measure ice mass changes in Greenland. In this paper, we report on some of our results using absolute and superconducting gravimeter data. We describe a project to establish a site for international comparisons of absolute gravimeters in Luxembourg.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Melchior, P.;  Observatoire Royal de Belgique - ORB
van Dam, Tonie ;  ECGS
Francis, Olivier  ;  Institut Supérireur de Technologie - IST
d'Oreye, N.
Language :
English
Title :
About Time Variations of Gravity
Publication date :
2001
Main work title :
Computational Seismology and Geodynamics
Publisher :
American Geophysical Union, United States
Collection name :
Selected Papers From Volume 32 of Vychislitel'naya Seysmologiya
Pages :
198-207
Peer reviewed :
Peer reviewed
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since 28 May 2013

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