kth.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
A short note on GIA related surface gravity versus height changes in Fennoscandia
KTH, School of Architecture and the Built Environment (ABE), Real Estate and Construction Management, Surveying – Geodesy, Land Law and Real Estate Planning. Department of Computer and Spatial Sciences, University of Gävle, 80176, Gävle, Sweden.ORCID iD: 0000-0003-0910-0596
KTH, School of Architecture and the Built Environment (ABE), Real Estate and Construction Management, Surveying – Geodesy, Land Law and Real Estate Planning.ORCID iD: 0000-0001-7810-8829
2025 (English)In: Journal of Geodesy, ISSN 0949-7714, E-ISSN 1432-1394, Vol. 99, no 1, article id 2Article in journal (Refereed) Published
Abstract [en]

Vertical land motion and the redistribution of masses within and on the surface of the Earth affect the Earth’s gravity field. Hence, studying the ratio between temporal changes of the surface gravity g˙ and height (h˙) is important in geoscience, e.g., for reduction of gravity observations, assessing satellite gravimetry missions, and tuning vertical land motion models. Sjöberg and Bagherbandi (2020) estimated a combined ratio of g˙/h˙ in Fennoscandia based on relative gravity observations along the 63 degree gravity line running from Vågstranda in Norway to Joensuu in Finland, 688 absolute gravity observations observed at 59 stations over Fennoscandia, monthly gravity data derived from the GRACE satellite mission between January 2003 and August 2016, as well as a land uplift model. The weighted least-squares solution of all these data was g˙/h˙ = − 0.166 ± 0.011 μGal/mm, which corresponds to an upper mantle density of about 3402 ± 95 kg/m3. The present note includes additional GRACE data to June 2017 and GRACE Follow-on data from June 2018 to November 2023. The resulting weighted least-squares solution for all data is g˙/h˙ = − 0.160 ± 0.011 μGal/mm, yielding an upper mantle density of about 3546 ± 71 kg/m3. The outcomes show the importance of satellite gravimetry data in Glacial Isostatic Adjustment (GIA) modeling and other parameters such as land uplift rate. Utilizing a longer time span of GRACE and GRACE Follow-on data allows us to capture fine variations and trends in the gravity-to-height ratio with better precision. This will be useful for constraining and adjusting GIA models and refining gravity observations.

Place, publisher, year, edition, pages
Springer Nature , 2025. Vol. 99, no 1, article id 2
Keywords [en]
Fennoscandia, Glacial Isostatic Adjustment, GRACE, Gravimetry, Gravity change, Land uplift
National Category
Geophysics
Identifiers
URN: urn:nbn:se:kth:diva-358168DOI: 10.1007/s00190-024-01921-7ISI: 001377059100001Scopus ID: 2-s2.0-85212068681OAI: oai:DiVA.org:kth-358168DiVA, id: diva2:1924795
Note

QC 20250107

Available from: 2025-01-07 Created: 2025-01-07 Last updated: 2025-01-07Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records

Bagherbandi, MohammadSjöberg, Lars

Search in DiVA

By author/editor
Bagherbandi, MohammadSjöberg, Lars
By organisation
Surveying – Geodesy, Land Law and Real Estate Planning
In the same journal
Journal of Geodesy
Geophysics

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 23 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf