Recent results based on continuous GPS observations of the GIA process in Fennoscandia from BIFROST
We present the latest 3D velocity field of the Fennoscandian glacial isostatic adjustment (GIA) process from BIFROST. It is derived from more than 4800 days (13 years) of data at more than 80 permanent GPS sites. We use the GAMIT/GLOBK and the GIPSY/OASIS II software packages for GPS analysis and co...
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Online Access: | https://oceanrep.geomar.de/id/eprint/43488/ https://oceanrep.geomar.de/id/eprint/43488/1/Lidberg.pdf https://doi.org/10.1016/j.jog.2009.11.010 |
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ftoceanrep:oai:oceanrep.geomar.de:43488 2023-05-15T16:11:54+02:00 Recent results based on continuous GPS observations of the GIA process in Fennoscandia from BIFROST Lidberg, Martin Johansson, Jan M. Scherneck, Hans-Georg Milne, Glenn A. 2010 text https://oceanrep.geomar.de/id/eprint/43488/ https://oceanrep.geomar.de/id/eprint/43488/1/Lidberg.pdf https://doi.org/10.1016/j.jog.2009.11.010 en eng Elsevier https://oceanrep.geomar.de/id/eprint/43488/1/Lidberg.pdf Lidberg, M., Johansson, J. M., Scherneck, H. G. and Milne, G. A. (2010) Recent results based on continuous GPS observations of the GIA process in Fennoscandia from BIFROST. Journal of Geodynamics, 50 (1). pp. 8-18. DOI 10.1016/j.jog.2009.11.010 <https://doi.org/10.1016/j.jog.2009.11.010>. doi:10.1016/j.jog.2009.11.010 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2010 ftoceanrep https://doi.org/10.1016/j.jog.2009.11.010 2023-04-07T15:40:21Z We present the latest 3D velocity field of the Fennoscandian glacial isostatic adjustment (GIA) process from BIFROST. It is derived from more than 4800 days (13 years) of data at more than 80 permanent GPS sites. We use the GAMIT/GLOBK and the GIPSY/OASIS II software packages for GPS analysis and compare the results. The solution has an internal accuracy at the level of 0.2 mm/year (1 sigma) for horizontal velocities at the best sites. We also present a revised GIA prediction model. At the best sites, the optimal model agrees with the observations to within 0.4 mm/year. However, the model systematically overpredicts the magnitude of horizontal rates in the north. We discuss limitations in computed and presented GNSS station velocities, where especially possible instability over time causing non-linear pattern in vertical time series are considered. In extension, preliminary results from an investigation applying revised analysis strategies on a sparse subset of the database are presented, indicating possible improvements for the future. Article in Journal/Newspaper Fennoscandia Fennoscandian OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Journal of Geodynamics 50 1 8 18 |
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Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
We present the latest 3D velocity field of the Fennoscandian glacial isostatic adjustment (GIA) process from BIFROST. It is derived from more than 4800 days (13 years) of data at more than 80 permanent GPS sites. We use the GAMIT/GLOBK and the GIPSY/OASIS II software packages for GPS analysis and compare the results. The solution has an internal accuracy at the level of 0.2 mm/year (1 sigma) for horizontal velocities at the best sites. We also present a revised GIA prediction model. At the best sites, the optimal model agrees with the observations to within 0.4 mm/year. However, the model systematically overpredicts the magnitude of horizontal rates in the north. We discuss limitations in computed and presented GNSS station velocities, where especially possible instability over time causing non-linear pattern in vertical time series are considered. In extension, preliminary results from an investigation applying revised analysis strategies on a sparse subset of the database are presented, indicating possible improvements for the future. |
format |
Article in Journal/Newspaper |
author |
Lidberg, Martin Johansson, Jan M. Scherneck, Hans-Georg Milne, Glenn A. |
spellingShingle |
Lidberg, Martin Johansson, Jan M. Scherneck, Hans-Georg Milne, Glenn A. Recent results based on continuous GPS observations of the GIA process in Fennoscandia from BIFROST |
author_facet |
Lidberg, Martin Johansson, Jan M. Scherneck, Hans-Georg Milne, Glenn A. |
author_sort |
Lidberg, Martin |
title |
Recent results based on continuous GPS observations of the GIA process in Fennoscandia from BIFROST |
title_short |
Recent results based on continuous GPS observations of the GIA process in Fennoscandia from BIFROST |
title_full |
Recent results based on continuous GPS observations of the GIA process in Fennoscandia from BIFROST |
title_fullStr |
Recent results based on continuous GPS observations of the GIA process in Fennoscandia from BIFROST |
title_full_unstemmed |
Recent results based on continuous GPS observations of the GIA process in Fennoscandia from BIFROST |
title_sort |
recent results based on continuous gps observations of the gia process in fennoscandia from bifrost |
publisher |
Elsevier |
publishDate |
2010 |
url |
https://oceanrep.geomar.de/id/eprint/43488/ https://oceanrep.geomar.de/id/eprint/43488/1/Lidberg.pdf https://doi.org/10.1016/j.jog.2009.11.010 |
genre |
Fennoscandia Fennoscandian |
genre_facet |
Fennoscandia Fennoscandian |
op_relation |
https://oceanrep.geomar.de/id/eprint/43488/1/Lidberg.pdf Lidberg, M., Johansson, J. M., Scherneck, H. G. and Milne, G. A. (2010) Recent results based on continuous GPS observations of the GIA process in Fennoscandia from BIFROST. Journal of Geodynamics, 50 (1). pp. 8-18. DOI 10.1016/j.jog.2009.11.010 <https://doi.org/10.1016/j.jog.2009.11.010>. doi:10.1016/j.jog.2009.11.010 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.jog.2009.11.010 |
container_title |
Journal of Geodynamics |
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50 |
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1 |
container_start_page |
8 |
op_container_end_page |
18 |
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1765997103481356288 |