Improved Constraints on Models of Glacial Isostatic Adjustment: A Review of the Contribution of Ground-based Geodetic Observations
peer reviewed 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 c...
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Online Access: | https://orbilu.uni.lu/handle/10993/584 https://doi.org/10.1007/s10712-010-9100-4 |
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ftunivluxembourg:oai:orbilu.uni.lu:10993/584 2024-10-13T14:03:26+00:00 Improved Constraints on Models of Glacial Isostatic Adjustment: A Review of the Contribution of Ground-based Geodetic Observations King, M. Altamimi, Z. Boehm, J. Bos, M. Dach, R. Elosegui, P. Fund, F. Hernandez-Pajares, M. Lavalee, D. Mendes Cerveira, P. J. Pena, N. Riva, R. Steigenberger, P. VAN DAM, Tonie Vituari, L. Williams, S. Willis, P. 2010 https://orbilu.uni.lu/handle/10993/584 https://doi.org/10.1007/s10712-010-9100-4 en eng Springer urn:issn:0169-3298 urn:issn:1573-0956 https://orbilu.uni.lu/handle/10993/584 info:hdl:10993/584 wos:000281564400001 restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess Surveys in Geophysics, 31 (5), 465-507 (2010) Glacial isostatic adjustment (GIA) Ice sheet mass balance geodesy Antarctica Greenland GPS VLBI SLR Doris Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physics Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2010 ftunivluxembourg https://doi.org/10.1007/s10712-010-9100-4 2024-09-27T07:04:13Z peer reviewed 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 isuncertain 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 Ice Sheet University of Luxembourg: ORBilu - Open Repository and Bibliography Greenland Surveys in Geophysics 31 5 465 507 |
institution |
Open Polar |
collection |
University of Luxembourg: ORBilu - Open Repository and Bibliography |
op_collection_id |
ftunivluxembourg |
language |
English |
topic |
Glacial isostatic adjustment (GIA) Ice sheet mass balance geodesy Antarctica Greenland GPS VLBI SLR Doris Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physics Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
Glacial isostatic adjustment (GIA) Ice sheet mass balance geodesy Antarctica Greenland GPS VLBI SLR Doris Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physics Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique King, M. Altamimi, Z. Boehm, J. Bos, M. Dach, R. Elosegui, P. Fund, F. Hernandez-Pajares, M. Lavalee, D. Mendes Cerveira, P. J. Pena, N. Riva, R. Steigenberger, P. VAN DAM, Tonie Vituari, L. Williams, S. Willis, P. Improved Constraints on Models of Glacial Isostatic Adjustment: A Review of the Contribution of Ground-based Geodetic Observations |
topic_facet |
Glacial isostatic adjustment (GIA) Ice sheet mass balance geodesy Antarctica Greenland GPS VLBI SLR Doris Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physics Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
description |
peer reviewed 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 isuncertain 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. |
format |
Article in Journal/Newspaper |
author |
King, M. Altamimi, Z. Boehm, J. Bos, M. Dach, R. Elosegui, P. Fund, F. Hernandez-Pajares, M. Lavalee, D. Mendes Cerveira, P. J. Pena, N. Riva, R. Steigenberger, P. VAN DAM, Tonie Vituari, L. Williams, S. Willis, P. |
author_facet |
King, M. Altamimi, Z. Boehm, J. Bos, M. Dach, R. Elosegui, P. Fund, F. Hernandez-Pajares, M. Lavalee, D. Mendes Cerveira, P. J. Pena, N. Riva, R. Steigenberger, P. VAN DAM, Tonie Vituari, L. Williams, S. Willis, P. |
author_sort |
King, M. |
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 |
Springer |
publishDate |
2010 |
url |
https://orbilu.uni.lu/handle/10993/584 https://doi.org/10.1007/s10712-010-9100-4 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Antarc* Antarctica Greenland Ice Sheet |
genre_facet |
Antarc* Antarctica Greenland Ice Sheet |
op_source |
Surveys in Geophysics, 31 (5), 465-507 (2010) |
op_relation |
urn:issn:0169-3298 urn:issn:1573-0956 https://orbilu.uni.lu/handle/10993/584 info:hdl:10993/584 wos:000281564400001 |
op_rights |
restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s10712-010-9100-4 |
container_title |
Surveys in Geophysics |
container_volume |
31 |
container_issue |
5 |
container_start_page |
465 |
op_container_end_page |
507 |
_version_ |
1812808441862815744 |