Geodetic constraints on glacial isostatic adjustement in Europe
Geophysical Research Letters, v. 32, p. L06308, 2005. http://dx.doi.org/10.1029/2004GL022174 International audience Direct measurements of surface deformation due to Glacial Isostatic Adjustment (GIA) in Europe have been so far mostly limited to the present-day uplift area. Here, we use permanent GP...
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ftccsdartic:oai:HAL:hal-00407456v1 2023-05-15T16:11:29+02:00 Geodetic constraints on glacial isostatic adjustement in Europe Nocquet, J.-M. Calais, E. Parsons, B. Géoazur (GEOAZUR 6526) Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Nice Sophia Antipolis (. - 2019) (UNS) COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS) 2005 https://hal.archives-ouvertes.fr/hal-00407456 https://hal.archives-ouvertes.fr/hal-00407456/document https://hal.archives-ouvertes.fr/hal-00407456/file/2004GL022174.pdf https://doi.org/10.1029/2004GL022174 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2004GL022174 hal-00407456 https://hal.archives-ouvertes.fr/hal-00407456 https://hal.archives-ouvertes.fr/hal-00407456/document https://hal.archives-ouvertes.fr/hal-00407456/file/2004GL022174.pdf doi:10.1029/2004GL022174 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.archives-ouvertes.fr/hal-00407456 Geophysical Research Letters, American Geophysical Union, 2005, 32, pp.L06308. ⟨10.1029/2004GL022174⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2005 ftccsdartic https://doi.org/10.1029/2004GL022174 2021-12-12T00:43:51Z Geophysical Research Letters, v. 32, p. L06308, 2005. http://dx.doi.org/10.1029/2004GL022174 International audience Direct measurements of surface deformation due to Glacial Isostatic Adjustment (GIA) in Europe have been so far mostly limited to the present-day uplift area. Here, we use permanent GPS networks results to investigate the significance of GIA effects in Europe south of Fennoscandia. We show that uplift in Fennoscandia is surrounded by subsidence reaching as far south as the Alps, with a maximum vertical rate of 1.5 mm/yr between 50.5-53°N. Horizontal velocity gradients show shortening between Fennoscandia and north-central Europe with strain rates of $10 À9 yr À1 and principal compressional strain axis pointing to the Gulf of Bothnia in a radial pattern. We find a very good quantitative agreement with the 3D surface displacement predicted by Milne et al. (2001), although the increase of misfit in far-field of Fennoscandia suggests that geodetic data outside of the uplift area may bring additional constraints to the rheological parameters used in GIA models. Article in Journal/Newspaper Fennoscandia Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Geophysical Research Letters 32 6 |
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Open Polar |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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ftccsdartic |
language |
English |
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[SDU]Sciences of the Universe [physics] |
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[SDU]Sciences of the Universe [physics] Nocquet, J.-M. Calais, E. Parsons, B. Geodetic constraints on glacial isostatic adjustement in Europe |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
Geophysical Research Letters, v. 32, p. L06308, 2005. http://dx.doi.org/10.1029/2004GL022174 International audience Direct measurements of surface deformation due to Glacial Isostatic Adjustment (GIA) in Europe have been so far mostly limited to the present-day uplift area. Here, we use permanent GPS networks results to investigate the significance of GIA effects in Europe south of Fennoscandia. We show that uplift in Fennoscandia is surrounded by subsidence reaching as far south as the Alps, with a maximum vertical rate of 1.5 mm/yr between 50.5-53°N. Horizontal velocity gradients show shortening between Fennoscandia and north-central Europe with strain rates of $10 À9 yr À1 and principal compressional strain axis pointing to the Gulf of Bothnia in a radial pattern. We find a very good quantitative agreement with the 3D surface displacement predicted by Milne et al. (2001), although the increase of misfit in far-field of Fennoscandia suggests that geodetic data outside of the uplift area may bring additional constraints to the rheological parameters used in GIA models. |
author2 |
Géoazur (GEOAZUR 6526) Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Nice Sophia Antipolis (. - 2019) (UNS) COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Nocquet, J.-M. Calais, E. Parsons, B. |
author_facet |
Nocquet, J.-M. Calais, E. Parsons, B. |
author_sort |
Nocquet, J.-M. |
title |
Geodetic constraints on glacial isostatic adjustement in Europe |
title_short |
Geodetic constraints on glacial isostatic adjustement in Europe |
title_full |
Geodetic constraints on glacial isostatic adjustement in Europe |
title_fullStr |
Geodetic constraints on glacial isostatic adjustement in Europe |
title_full_unstemmed |
Geodetic constraints on glacial isostatic adjustement in Europe |
title_sort |
geodetic constraints on glacial isostatic adjustement in europe |
publisher |
HAL CCSD |
publishDate |
2005 |
url |
https://hal.archives-ouvertes.fr/hal-00407456 https://hal.archives-ouvertes.fr/hal-00407456/document https://hal.archives-ouvertes.fr/hal-00407456/file/2004GL022174.pdf https://doi.org/10.1029/2004GL022174 |
genre |
Fennoscandia |
genre_facet |
Fennoscandia |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.archives-ouvertes.fr/hal-00407456 Geophysical Research Letters, American Geophysical Union, 2005, 32, pp.L06308. ⟨10.1029/2004GL022174⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2004GL022174 hal-00407456 https://hal.archives-ouvertes.fr/hal-00407456 https://hal.archives-ouvertes.fr/hal-00407456/document https://hal.archives-ouvertes.fr/hal-00407456/file/2004GL022174.pdf doi:10.1029/2004GL022174 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2004GL022174 |
container_title |
Geophysical Research Letters |
container_volume |
32 |
container_issue |
6 |
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1765996631815094272 |