Present-day trends of vertical ground motion along the coast lines
International audience Vertical ground motion (VGM) rates stand as crucial information, either for predicting the impact of the actual sea level rise along low-lying coasts or refining geodynamic problems. Because present day VGM rates have a magnitude smaller than 10 mm/yr, they remain challenging...
Published in: | Earth-Science Reviews |
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Main Authors: | , , , , |
Other Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2012
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Subjects: | |
Online Access: | https://doi.org/10.1016/j.earscirev.2011.10.004 https://hal-insu.archives-ouvertes.fr/insu-00665616/file/ostanciaux2012.pdf https://hal-insu.archives-ouvertes.fr/insu-00665616 |
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fttriple:oai:gotriple.eu:10670/1.ixznkx |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
Sea level Ground motion Tide gauges Satellite altimetry Postglacial rebound geo envir |
spellingShingle |
Sea level Ground motion Tide gauges Satellite altimetry Postglacial rebound geo envir Ostanciaux, Emilie Husson, Laurent Choblet, G. Robin, Cécile Pedoja, Kevin Present-day trends of vertical ground motion along the coast lines |
topic_facet |
Sea level Ground motion Tide gauges Satellite altimetry Postglacial rebound geo envir |
description |
International audience Vertical ground motion (VGM) rates stand as crucial information, either for predicting the impact of the actual sea level rise along low-lying coasts or refining geodynamic problems. Because present day VGM rates have a magnitude smaller than 10 mm/yr, they remain challenging to quantify and often elusive. We focus on the quantification of global-scale VGM rates in order to identify global or regional trends. We computed VGM rates by combining tide gauges records and local satellite altimetry, which yield a new dataset of 634 VGM rates. We further compare this database to previous studies that use geodetic techniques and tide gauges records in order to evaluate the consistency of both our results and previous ones. The magnitudes differ by less than 5 mm/yr, and similar subsidence and uplift general tendencies appear. Even if the asset of our database stands in the greater number of sites, the combination of all studies, each with different pros and cons, yields a hybrid dataset that makes our attempt to extract VGM trends more robust than any other, independent study. Fennoscandia, the West coast of North America, and the eastern coast of Australia are uplifting, while the eastern coast of North America, the British Isles and Western Europe, the eastern Mediterranean Sea, Japan, and the western coast of Australia are subsiding. Glacial Isostatic Adjustment (GIA) is expected to provide a major contribution to the present-day signal. Aside from Fennoscandia, observed VGM often depart from the GIA model predictions of Peltier (2004). This either results from an underestimate of the model predictions or from the influence of other processes: indeed, the influence of the geodynamic setting appears in particular along the coasts of western North America or Japan, where the alternation of transform faults and subduction zones makes it possible to assign contrasted behaviours to the local geodynamic context. Local mechanisms like anthropogenic processes or sediment compaction, also contribute to ... |
author2 |
Systèmes Tectoniques Géosciences Rennes (GR) Université de Rennes 1 (UR1) Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1) Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Centre National de la Recherche Scientifique (CNRS) Laboratoire de Planétologie et Géodynamique UMR 6112 (LPG) Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Morphodynamique Continentale et Côtière (M2C) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rouen Normandie (UNIROUEN) Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Ostanciaux, Emilie Husson, Laurent Choblet, G. Robin, Cécile Pedoja, Kevin |
author_facet |
Ostanciaux, Emilie Husson, Laurent Choblet, G. Robin, Cécile Pedoja, Kevin |
author_sort |
Ostanciaux, Emilie |
title |
Present-day trends of vertical ground motion along the coast lines |
title_short |
Present-day trends of vertical ground motion along the coast lines |
title_full |
Present-day trends of vertical ground motion along the coast lines |
title_fullStr |
Present-day trends of vertical ground motion along the coast lines |
title_full_unstemmed |
Present-day trends of vertical ground motion along the coast lines |
title_sort |
present-day trends of vertical ground motion along the coast lines |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://doi.org/10.1016/j.earscirev.2011.10.004 https://hal-insu.archives-ouvertes.fr/insu-00665616/file/ostanciaux2012.pdf https://hal-insu.archives-ouvertes.fr/insu-00665616 |
long_lat |
ENVELOPE(-63.495,-63.495,-64.854,-64.854) |
geographic |
Peltier |
geographic_facet |
Peltier |
genre |
Fennoscandia |
genre_facet |
Fennoscandia |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0012-8252 Earth-Science Reviews Earth-Science Reviews, Elsevier, 2012, 110 (1-4), pp.74-92. ⟨10.1016/j.earscirev.2011.10.004⟩ |
op_relation |
insu-00665616 doi:10.1016/j.earscirev.2011.10.004 10670/1.ixznkx https://hal-insu.archives-ouvertes.fr/insu-00665616/file/ostanciaux2012.pdf https://hal-insu.archives-ouvertes.fr/insu-00665616 |
op_doi |
https://doi.org/10.1016/j.earscirev.2011.10.004 |
container_title |
Earth-Science Reviews |
container_volume |
110 |
container_issue |
1-4 |
container_start_page |
74 |
op_container_end_page |
92 |
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1765997073202675712 |
spelling |
fttriple:oai:gotriple.eu:10670/1.ixznkx 2023-05-15T16:11:52+02:00 Present-day trends of vertical ground motion along the coast lines Ostanciaux, Emilie Husson, Laurent Choblet, G. Robin, Cécile Pedoja, Kevin Systèmes Tectoniques Géosciences Rennes (GR) Université de Rennes 1 (UR1) Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1) Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Centre National de la Recherche Scientifique (CNRS) Laboratoire de Planétologie et Géodynamique UMR 6112 (LPG) Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Morphodynamique Continentale et Côtière (M2C) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rouen Normandie (UNIROUEN) Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS) 2012-01-01 https://doi.org/10.1016/j.earscirev.2011.10.004 https://hal-insu.archives-ouvertes.fr/insu-00665616/file/ostanciaux2012.pdf https://hal-insu.archives-ouvertes.fr/insu-00665616 en eng HAL CCSD Elsevier insu-00665616 doi:10.1016/j.earscirev.2011.10.004 10670/1.ixznkx https://hal-insu.archives-ouvertes.fr/insu-00665616/file/ostanciaux2012.pdf https://hal-insu.archives-ouvertes.fr/insu-00665616 Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0012-8252 Earth-Science Reviews Earth-Science Reviews, Elsevier, 2012, 110 (1-4), pp.74-92. ⟨10.1016/j.earscirev.2011.10.004⟩ Sea level Ground motion Tide gauges Satellite altimetry Postglacial rebound geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2012 fttriple https://doi.org/10.1016/j.earscirev.2011.10.004 2023-01-22T17:01:04Z International audience Vertical ground motion (VGM) rates stand as crucial information, either for predicting the impact of the actual sea level rise along low-lying coasts or refining geodynamic problems. Because present day VGM rates have a magnitude smaller than 10 mm/yr, they remain challenging to quantify and often elusive. We focus on the quantification of global-scale VGM rates in order to identify global or regional trends. We computed VGM rates by combining tide gauges records and local satellite altimetry, which yield a new dataset of 634 VGM rates. We further compare this database to previous studies that use geodetic techniques and tide gauges records in order to evaluate the consistency of both our results and previous ones. The magnitudes differ by less than 5 mm/yr, and similar subsidence and uplift general tendencies appear. Even if the asset of our database stands in the greater number of sites, the combination of all studies, each with different pros and cons, yields a hybrid dataset that makes our attempt to extract VGM trends more robust than any other, independent study. Fennoscandia, the West coast of North America, and the eastern coast of Australia are uplifting, while the eastern coast of North America, the British Isles and Western Europe, the eastern Mediterranean Sea, Japan, and the western coast of Australia are subsiding. Glacial Isostatic Adjustment (GIA) is expected to provide a major contribution to the present-day signal. Aside from Fennoscandia, observed VGM often depart from the GIA model predictions of Peltier (2004). This either results from an underestimate of the model predictions or from the influence of other processes: indeed, the influence of the geodynamic setting appears in particular along the coasts of western North America or Japan, where the alternation of transform faults and subduction zones makes it possible to assign contrasted behaviours to the local geodynamic context. Local mechanisms like anthropogenic processes or sediment compaction, also contribute to ... Article in Journal/Newspaper Fennoscandia Unknown Peltier ENVELOPE(-63.495,-63.495,-64.854,-64.854) Earth-Science Reviews 110 1-4 74 92 |