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Royal Observatory Belgium and the National Geographic Institute (Federal Mapping Agency) to validate the g‐value at the historical reference base station ‘Carte du Ciel’ in Brussels.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.

中文翻译：

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比利时的重力数据库

已经建立了基于覆盖比利时领土的密集地面重力测量的数据和元数据产品，符合有关重力数据的新ISO19115-1规范。从1892年的第一次重力测量开始，简要介绍了比利时领土上的重力测量的历史。本文重点介绍1971年之后获得的重力数据，这标志着IGSN71被国际协会采纳为世界网络的参考大地测量学（IAG）。在包含所有比利时重力数据的完整数据集旁边，将可用的重力数据简化为相应的测量活动，从而可以确定特定的元数据（例如，使用的重力仪，潮汐系统参数，获取时间等）。g值位于布鲁塞尔的历史参考基站“ Carte du Ciel”。考虑到仪器误差和地下水含量的变化，对检索到的数据进行验证并批准用于进一步的研究。