The Superconducting Gravimeter CD-034 at Moxa Observatory: More than 20 Years of Scientific Experience and a Reanimation

Abstract In this work, advanced methods and processing schemes for the analysis of data from a Superconducting Gravimeter (SG) will be introduced their relevance on acquired proved. The SG CD-034 was installed Easter 1999 in Geodynamic Observatory Moxa Friedrich Schiller University Jena, Germany. Initially, quality recorded examined, spectra detection parasitic modes were calculated calibration values two sensors determined. Ever since very high-quality gravity most other worldwide SGs made available through storage archive Global Geodynamics Project (GGP later changed to IGETS, International Earth Tide Service) global scientific investigations at that time. SG’s such as one (Germany) still deliver significant value gravitational field studies well regional/local which shortly reviewed. Examples are polar motion, influence continental water loading general particular river basin loads, gravimetric effect North Sea storm surges study hydro-gravimetric signals, could compared with satellite observations hydraulic models. long-term, low-noise operation complex requires some effort maintenance. order evaluate correct SG, new steps assist case issues instrumentation. For example, 2012/2013 2020/2021 severe interference gravimeter electronics led loss data. both cases, however, cause determined, corresponding electronic components renewed. Since July 2021, registers again high comparable or slightly better than before incident. Initial tests tidal analyses confirm validity old factors, authors now look forward re-established long-term recording excitement confidence.