New Tidal Analysis of Superconducting Gravimeter Records at Metsähovi, Finland
International Association of Geodesy symposia(2023)
Abstract
Abstract Superconducting gravimeters are the most sensitive instruments for monitoring gravitational changes. At the Metsähovi Geodetic Research Station in southern Finland, a superconducting gravimeter has been operating since 1994. It can be used to monitor crustal loading effects affecting the other geodetic measurements made at the station. Gravimeters iGrav-013 and iOSG-022 replaced the old gravimeter SG-T020 at Metsähovi in 2016. The first step was to do a new local tidal gravity modelling for Metsähovi Geodetic Research Station based on the first 5.5 years of iGrav-013 and iOSG-022 superconducting gravimeter data. Here we present the first analysis of the gravity data and the results of tidal analysis of Earth body tides and ocean tidal loading.
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Key words
gravimeter records
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