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  Analysis of iGrav-013 and iOSG-022 superconducting gravimeter data at the Metsähovi Geodetic Research Station, Finland

Raja-Halli, A., Bilker-Koivula, M., Näränen, J., Virtanen, H., Ruotsalainen, H. (2023): Analysis of iGrav-013 and iOSG-022 superconducting gravimeter data at the Metsähovi Geodetic Research Station, Finland, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-4558

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Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020968 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020968_1
Genre: Conference Paper

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 Creators:
Raja-Halli, Arttu1, Author
Bilker-Koivula, Mirjam1, Author
Näränen, Jyri1, Author
Virtanen, Heikki1, Author
Ruotsalainen, Hannu1, Author
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

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 Abstract: We present the first six years of superconducting gravity data from the two new gravimeters operating at the Metsähovi Geodetic Research Station in southern Finland. The iGrav-013 and iOSG-022 were installed at the station in 2016 continuing the time series started in 1994 with the previous superconducting gravimeter. We have computed new calibration factors for the new gravimeters from repeated absolute gravity measurements and computed new local tidal model with a comparison of several ocean tide loading models. We also analyze the effects of environmental loading and attraction on the gravity time series by using the loading corrections provided by the Ecole et Observatoire des Sciences de la Terre (EOST) loading service. We also investigate the contribution of the local hydrology and the Baltic Sea. Metsähovi Geodetic Research Station is one of the northernmost core sites of the Global Geodetic Observing System with all space geodetic techniques at the site. Superconducting gravimeter data can provide valuable information on the different environmental loading displacements affecting all the geodetic observations at the station.

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Language(s): eng - English
 Dates: 2023-07-112023-07-11
 Publication Status: Finally published
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.57757/IUGG23-4558
 Degree: -

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Title: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Place of Event: Berlin
Start-/End Date: 2023-07-11 - 2023-07-20

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Title: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Source Genre: Proceedings
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Publ. Info: Potsdam : GFZ German Research Centre for Geosciences
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