Improved Constraints on Models of Glacial Isostatic Adjustment: A Review of the Contribution of Ground-Based Geodetic Observations
International audience The provision of accurate models of Glacial Isostatic Adjustment (GIA) is presently a priority need in climate studies, largely due to the potential of the Gravity Recovery and Climate Experiment (GRACE) data to be used to determine accurate and continent-wide assessments of i...
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Online Access: | https://insu.hal.science/insu-03605285 https://insu.hal.science/insu-03605285/document https://insu.hal.science/insu-03605285/file/King2010_Article_ImprovedConstraintsOnModelsOfG.pdf https://doi.org/10.1007/s10712-010-9100-4 |
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ftunivangershal:oai:HAL:insu-03605285v1 2023-11-12T04:03:32+01:00 Improved Constraints on Models of Glacial Isostatic Adjustment: A Review of the Contribution of Ground-Based Geodetic Observations King, Matt A. Altamimi, Zuheir Boehm, Johannes Bos, Machiel Dach, Rolf Elosegui, Pedro Fund, François Hernández-Pajares, Manuel Lavallee, David Mendes Cerveira, Paulo Jorge Penna, Nigel Riva, Riccardo E. M. Steigenberger, Peter van Dam, Tonie Vittuari, Luca Williams, Simon Willis, Pascal 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) Institut de Physique du Globe de Paris (IPGP) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS) 2010 https://insu.hal.science/insu-03605285 https://insu.hal.science/insu-03605285/document https://insu.hal.science/insu-03605285/file/King2010_Article_ImprovedConstraintsOnModelsOfG.pdf https://doi.org/10.1007/s10712-010-9100-4 en eng HAL CCSD Springer Verlag (Germany) info:eu-repo/semantics/altIdentifier/doi/10.1007/s10712-010-9100-4 insu-03605285 https://insu.hal.science/insu-03605285 https://insu.hal.science/insu-03605285/document https://insu.hal.science/insu-03605285/file/King2010_Article_ImprovedConstraintsOnModelsOfG.pdf BIBCODE: 2010SGeo.31.465K doi:10.1007/s10712-010-9100-4 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 0169-3298 EISSN: 1573-0956 Surveys in Geophysics https://insu.hal.science/insu-03605285 Surveys in Geophysics, 2010, 31 (5), pp.465-507. ⟨10.1007/s10712-010-9100-4⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2010 ftunivangershal https://doi.org/10.1007/s10712-010-9100-4 2023-10-25T16:18:13Z International audience The provision of accurate models of Glacial Isostatic Adjustment (GIA) is presently a priority need in climate studies, largely due to the potential of the Gravity Recovery and Climate Experiment (GRACE) data to be used to determine accurate and continent-wide assessments of ice mass change and hydrology. However, modelled GIA is uncertain due to insufficient constraints on our knowledge of past glacial changes and to large simplifications in the underlying Earth models. Consequently, we show differences between models that exceed several mm/year in terms of surface displacement for the two major ice sheets: Greenland and Antarctica. Geodetic measurements of surface displacement offer the potential for new constraints to be made on GIA models, especially when they are used to improve structural features of the Earth’s interior as to allow for a more realistic reconstruction of the glaciation history. We present the distribution of presently available campaign and continuous geodetic measurements in Greenland and Antarctica and summarise surface velocities published to date, showing substantial disagreement between techniques and GIA models alike. We review the current state-of-the-art in ground-based geodesy (GPS, VLBI, DORIS, SLR) in determining accurate and precise surface velocities. In particular, we focus on known areas of need in GPS observation level models and the terrestrial reference frame in order to advance geodetic observation precision/accuracy toward 0.1 mm/year and therefore further constrain models of GIA and subsequent present-day ice mass change estimates. Article in Journal/Newspaper Antarc* Antarctica Greenland Portail des publications scientifiques de l’Université d’Angers (HAL) Greenland Surveys in Geophysics 31 5 465 507 |
institution |
Open Polar |
collection |
Portail des publications scientifiques de l’Université d’Angers (HAL) |
op_collection_id |
ftunivangershal |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] King, Matt A. Altamimi, Zuheir Boehm, Johannes Bos, Machiel Dach, Rolf Elosegui, Pedro Fund, François Hernández-Pajares, Manuel Lavallee, David Mendes Cerveira, Paulo Jorge Penna, Nigel Riva, Riccardo E. M. Steigenberger, Peter van Dam, Tonie Vittuari, Luca Williams, Simon Willis, Pascal Improved Constraints on Models of Glacial Isostatic Adjustment: A Review of the Contribution of Ground-Based Geodetic Observations |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience The provision of accurate models of Glacial Isostatic Adjustment (GIA) is presently a priority need in climate studies, largely due to the potential of the Gravity Recovery and Climate Experiment (GRACE) data to be used to determine accurate and continent-wide assessments of ice mass change and hydrology. However, modelled GIA is uncertain due to insufficient constraints on our knowledge of past glacial changes and to large simplifications in the underlying Earth models. Consequently, we show differences between models that exceed several mm/year in terms of surface displacement for the two major ice sheets: Greenland and Antarctica. Geodetic measurements of surface displacement offer the potential for new constraints to be made on GIA models, especially when they are used to improve structural features of the Earth’s interior as to allow for a more realistic reconstruction of the glaciation history. We present the distribution of presently available campaign and continuous geodetic measurements in Greenland and Antarctica and summarise surface velocities published to date, showing substantial disagreement between techniques and GIA models alike. We review the current state-of-the-art in ground-based geodesy (GPS, VLBI, DORIS, SLR) in determining accurate and precise surface velocities. In particular, we focus on known areas of need in GPS observation level models and the terrestrial reference frame in order to advance geodetic observation precision/accuracy toward 0.1 mm/year and therefore further constrain models of GIA and subsequent present-day ice mass change estimates. |
author2 |
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) Institut de Physique du Globe de Paris (IPGP) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
King, Matt A. Altamimi, Zuheir Boehm, Johannes Bos, Machiel Dach, Rolf Elosegui, Pedro Fund, François Hernández-Pajares, Manuel Lavallee, David Mendes Cerveira, Paulo Jorge Penna, Nigel Riva, Riccardo E. M. Steigenberger, Peter van Dam, Tonie Vittuari, Luca Williams, Simon Willis, Pascal |
author_facet |
King, Matt A. Altamimi, Zuheir Boehm, Johannes Bos, Machiel Dach, Rolf Elosegui, Pedro Fund, François Hernández-Pajares, Manuel Lavallee, David Mendes Cerveira, Paulo Jorge Penna, Nigel Riva, Riccardo E. M. Steigenberger, Peter van Dam, Tonie Vittuari, Luca Williams, Simon Willis, Pascal |
author_sort |
King, Matt A. |
title |
Improved Constraints on Models of Glacial Isostatic Adjustment: A Review of the Contribution of Ground-Based Geodetic Observations |
title_short |
Improved Constraints on Models of Glacial Isostatic Adjustment: A Review of the Contribution of Ground-Based Geodetic Observations |
title_full |
Improved Constraints on Models of Glacial Isostatic Adjustment: A Review of the Contribution of Ground-Based Geodetic Observations |
title_fullStr |
Improved Constraints on Models of Glacial Isostatic Adjustment: A Review of the Contribution of Ground-Based Geodetic Observations |
title_full_unstemmed |
Improved Constraints on Models of Glacial Isostatic Adjustment: A Review of the Contribution of Ground-Based Geodetic Observations |
title_sort |
improved constraints on models of glacial isostatic adjustment: a review of the contribution of ground-based geodetic observations |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://insu.hal.science/insu-03605285 https://insu.hal.science/insu-03605285/document https://insu.hal.science/insu-03605285/file/King2010_Article_ImprovedConstraintsOnModelsOfG.pdf https://doi.org/10.1007/s10712-010-9100-4 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Antarc* Antarctica Greenland |
genre_facet |
Antarc* Antarctica Greenland |
op_source |
ISSN: 0169-3298 EISSN: 1573-0956 Surveys in Geophysics https://insu.hal.science/insu-03605285 Surveys in Geophysics, 2010, 31 (5), pp.465-507. ⟨10.1007/s10712-010-9100-4⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10712-010-9100-4 insu-03605285 https://insu.hal.science/insu-03605285 https://insu.hal.science/insu-03605285/document https://insu.hal.science/insu-03605285/file/King2010_Article_ImprovedConstraintsOnModelsOfG.pdf BIBCODE: 2010SGeo.31.465K doi:10.1007/s10712-010-9100-4 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1007/s10712-010-9100-4 |
container_title |
Surveys in Geophysics |
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31 |
container_issue |
5 |
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465 |
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