New Tidal Analysis of Superconducting Gravimeter Records at Metsähovi, Finland

Arttu Raja-Halli*, Maaria Nordman, Hannu Ruotsalainen, Heikki Virtanen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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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.
Original languageEnglish
Title of host publicationGravity, Positioning and Reference Frames - Proceedings of the IAG Symposia - GGHS2022
Subtitle of host publicationGravity, Geoid, and Height Systems 2022; IAG Commission 4: Positioning and Applications, 2022; REFAG2022: Reference Frames for Applications in Geosciences, 2022
EditorsJeffrey T. Freymueller, Laura Sánchez
PublisherSpringer
Pages11-19
Number of pages9
ISBN (Electronic)978-3-031-63855-8
ISBN (Print)978-3-031-63854-1
DOIs
Publication statusPublished - 2024
MoE publication typeA4 Conference publication
EventIAG International Symposium on Reference Frames for Applications in Geosciences - Thessaloniki, Greece
Duration: 17 Oct 202220 Oct 2022

Publication series

NameInternational Association of Geodesy Symposia
Volume156
ISSN (Print)0939-9585
ISSN (Electronic)2197-9359

Conference

ConferenceIAG International Symposium on Reference Frames for Applications in Geosciences
Abbreviated titleREFAG
Country/TerritoryGreece
CityThessaloniki
Period17/10/202220/10/2022

Keywords

  • gravity
  • ocean tidal loading
  • superconducting gravimeter
  • tides
  • Ocean tidal loading
  • Superconducting gravimeter
  • Tides
  • Gravity

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