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false4DOIDB.IGETS 10.5880/igets.bu.l1.001 Voigt, Christian Christian Voigt 0000-0002-9988-965X GFZ Helmholtz Centre for Geosciences, Potsdam, Germany Stolarczuk, Nico Nico Stolarczuk GFZ Helmholtz Centre for Geosciences, Potsdam, Germany GFZ Data Services 2025 Superconducting gravimetry Earth tides Geodynamics IGETS International Geodynamics and Earth Tide Service EARTH SCIENCE > SOLID EARTH > GRAVITY/GRAVITATIONAL FIELD > GRAVITY geodesy geophysics hydrology Voigt, Christian Christian Voigt 0000-0002-9988-965X GFZ Helmholtz Centre for Geosciences, Potsdam, Germany Stolarczuk, Nico Nico Stolarczuk GFZ Helmholtz Centre for Geosciences, Potsdam, Germany Voigt, Christian GFZ Helmholtz Centre for Geosciences, Potsdam, Germany 2025-08 Dataset 10.2312/GFZ.b103-16087 10.5880/igets.su.l1.001 001 CC BY 4.0 The International Geodynamics and Earth Tides Service (IGETS) was established in 2015 by the International Association of Geodesy IAG. IGETS continues the activities of the Global Geodynamics Project (GGP) between 1997 and 2015 to provide support to geodetic and geophysical research activities using superconducting gravimeter (SG) data within the context of an international network. As part of this network, the Eifel Gravimetric Observatory Germany (EIGOG) was established by the GFZ Helmholtz Centre for Geosciences in August 2025. Continuous time-varying gravity and atmospheric pressure data from the SG at EIGOG are integrated in the IGETS data base hosted by GFZ.

The EIGOG observatory is located at the Buchholz Provostry (Propstei Buchholz) in the municipality of Burgbrohl. It is part of a multiparameter station for the monitoring and analysis of seismic and volcanic signals within the Central European Volcanic Province Observatory (CVO) in the Eifel region. Additional sensors at Buchholz are GNSS, InSAR corner reflector, seismometer, tiltmeter, groundwater level and a weather station. The operation and maintenance of the EIGOG instrumentation is done by staff of the GFZ.

EIGOG is a high precision gravimetric observatory with the dual-sphere OSG D037 manufactured by GWR Instruments as core instrument, one of the two SGs operating at Sutherland, South Africa, until December 2024 (Förste et al., 2016, http://doi.org/10.5880/igets.su.l1.001). The time series of gravity and barometric pressure from the OSG D037 starts in August 2025. The SG is active and the time series is kept up to date regularly with a time delay of a few months. The time sampling of the raw gravity and barometric pressure data of IGETS Level 1 is 1 second and 1 minute. For a detailed description of the IGETS data base and the provided files see Voigt et al. (2016, http://doi.org/10.2312/GFZ.b103-16087).
Buchholz station: raw gravity and atmospheric pressure from OSG D037 - IGETS Level 1