Gravimetric data

Data from permanent gravity stations

Data from Résif’s permanent gravity stations are the time series of variations in gravity and atmospheric pressure measured by superconducting gravimeters at four sites in mainland France (Larzac, Rustrel, Strasbourg and Trappes in France), and repeated measurements at around twenty sites by the various French absolute gravimeters.

Level 1 data (raw data), Level 2 data (data pre-processed for tidal analysis) and Level 3 data (residuals after geophysical corrections) are available via the data centers of the international services of the International Association of Geodesy (IAG):

• the International Geodynamics and Earth Tide Service (Igets)
• the Igets ftp server, hosted by GFZ in Potsdam, Germany.

Data are available in the form of monthly text files of time series per second and per minute. Contents: date, time, gravity, pressure…

Download

« Description of the Level 2 ans Level 3 IGETS data produced by EOST », Jean-Paul Boy, version 2 du 15 février 2022 (pdf)

Data from mobile gravity stations

Data from the mobile network stations are distributed by the Bureau Gravimétrique International (BGI), the IAG’s scientific department responsible for compiling, validating, archiving and making available to the scientific community all relative and absolute measurements of the Earth’s gravity field (terrestrial, marine and airborne measurements).

The BGI website disseminates point gravity data (relative and absolute measurements) acquired by French teams.