The gravity database for Belgium

Jeffrey Verbeurgt, Michel Van Camp, Cornelis Stal, Thierry Camelbeeck, Lars De Sloover, Hans Poppe, Pierre Yves Declercq, Pierre Voet, Denis Constales, Peter Troch, Philippe De Maeyer, Alain De Wulf

Research output: Contribution to journalArticle

Abstract

Data and metadata products based on intensive terrestrial gravity measurements covering the Belgian territory have been established compliant to the new ISO19115-1 profile for gravity-related data. A short historical introduction on gravity measurements on the Belgian territory is presented, starting with the first gravity measurement in 1892. This paper focuses on gravity data acquired after 1971, which marks the adoption of IGSN71 as a reference for the world network by the International Association of Geodesy (IAG). Next to a complete dataset containing all Belgian gravity data, the available gravity data were reduced to the corresponding measurement campaign, enabling determination of specific metadata (e.g. used gravimeter, tide system parameters, time of acquisition, etc.). New gravity and spirit levelling measurements were executed by the Royal Observatory Belgium and the National Geographic Institute (Federal Mapping Agency) to validate the g-value at the historical reference base station ‘Carte du Ciel’ in Brussels. Taking into account the instrumental errors and the varying ground water content, the retrieved data are validated and approved for use in further research.

Original languageEnglish (US)
Pages (from-to)116-125
Number of pages10
JournalGeoscience Data Journal
Volume6
Issue number2
DOIs
StatePublished - Nov 1 2019
Externally publishedYes

Keywords

  • Belgium
  • gravity data
  • metadata
  • reference levels

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

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    Verbeurgt, J., Van Camp, M., Stal, C., Camelbeeck, T., De Sloover, L., Poppe, H., Declercq, P. Y., Voet, P., Constales, D., Troch, P., De Maeyer, P., & De Wulf, A. (2019). The gravity database for Belgium. Geoscience Data Journal, 6(2), 116-125. https://doi.org/10.1002/gdj3.74