Geophysics From Terrestrial Time-Variable Gravity Measurements

Autor(en)

Michel van Camp, Oliver de Viron, Arnaud Watlet, Bruno Meurers, Olivier Francis, Corentin Caudron

Abstrakt

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.

Organisation(en)

Institut für Meteorologie und Geophysik

Externe Organisation(en)

Royal Observatory of Belgium, Université Libre de Bruxelles, University of Luxembourg, Université de La Rochelle, University of Mons

Journal

Reviews of Geophysics

Band

55

Seiten

938-992

Anzahl der Seiten

55

ISSN

8755-1209

DOI

https://doi.org/10.1002/2017RG000566

Publikationsdatum

12-2017

Peer-reviewed

Ja

ÖFOS 2012

105111 Gravimetrie, 105102 Allgemeine Geophysik

Schlagwörter

ASJC Scopus Sachgebiete

Geophysics

Sustainable Development Goals

SDG 15 – Leben an Land

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/117210c3-ce9b-4150-82dc-dc3dc08f7240