Improved Constraints on Models of Glacial Isostatic Adjustment: A Review of the Contribution of Ground-Based Geodetic Observations
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 hydr...
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ftunivtasecite:oai:ecite.utas.edu.au:82144 2023-05-15T14:02:31+02:00 Improved Constraints on Models of Glacial Isostatic Adjustment: A Review of the Contribution of Ground-Based Geodetic Observations King, MA Altamimi, Z Boehm, J Bos, M Dach, R Elosegui, P Fund, F Hernandez-Pajares, M Lavallee, D Cerveira, PJM Penna, N Riva, REM Steigenberger, P van Dam, T Vittuari, L Williams, S Willis, P 2010 https://doi.org/10.1007/s10712-010-9100-4 http://ecite.utas.edu.au/82144 en eng x http://dx.doi.org/10.1007/s10712-010-9100-4 King, MA and Altamimi, Z and Boehm, J and Bos, M and Dach, R and Elosegui, P and Fund, F and Hernandez-Pajares, M and Lavallee, D and Cerveira, PJM and Penna, N and Riva, REM and Steigenberger, P and van Dam, T and Vittuari, L and Williams, S and Willis, P, Improved Constraints on Models of Glacial Isostatic Adjustment: A Review of the Contribution of Ground-Based Geodetic Observations, Surveys in Geophysics, 31, (5) pp. 465-507. ISSN 0169-3298 (2010) [Refereed Article] http://ecite.utas.edu.au/82144 Earth Sciences Physical Geography and Environmental Geoscience Physical Geography and Environmental Geoscience not elsewhere classified Refereed Article PeerReviewed 2010 ftunivtasecite https://doi.org/10.1007/s10712-010-9100-4 2019-12-13T21:47:03Z 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. 2010 The Author(s). Article in Journal/Newspaper Antarc* Antarctica Greenland eCite UTAS (University of Tasmania) Greenland Surveys in Geophysics 31 5 465 507 |
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Open Polar |
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eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Physical Geography and Environmental Geoscience Physical Geography and Environmental Geoscience not elsewhere classified |
spellingShingle |
Earth Sciences Physical Geography and Environmental Geoscience Physical Geography and Environmental Geoscience not elsewhere classified King, MA Altamimi, Z Boehm, J Bos, M Dach, R Elosegui, P Fund, F Hernandez-Pajares, M Lavallee, D Cerveira, PJM Penna, N Riva, REM Steigenberger, P van Dam, T Vittuari, 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 |
Earth Sciences Physical Geography and Environmental Geoscience Physical Geography and Environmental Geoscience not elsewhere classified |
description |
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. 2010 The Author(s). |
format |
Article in Journal/Newspaper |
author |
King, MA Altamimi, Z Boehm, J Bos, M Dach, R Elosegui, P Fund, F Hernandez-Pajares, M Lavallee, D Cerveira, PJM Penna, N Riva, REM Steigenberger, P van Dam, T Vittuari, L Williams, S Willis, P |
author_facet |
King, MA Altamimi, Z Boehm, J Bos, M Dach, R Elosegui, P Fund, F Hernandez-Pajares, M Lavallee, D Cerveira, PJM Penna, N Riva, REM Steigenberger, P van Dam, T Vittuari, L Williams, S Willis, P |
author_sort |
King, MA |
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 |
x |
publishDate |
2010 |
url |
https://doi.org/10.1007/s10712-010-9100-4 http://ecite.utas.edu.au/82144 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Antarc* Antarctica Greenland |
genre_facet |
Antarc* Antarctica Greenland |
op_relation |
http://dx.doi.org/10.1007/s10712-010-9100-4 King, MA and Altamimi, Z and Boehm, J and Bos, M and Dach, R and Elosegui, P and Fund, F and Hernandez-Pajares, M and Lavallee, D and Cerveira, PJM and Penna, N and Riva, REM and Steigenberger, P and van Dam, T and Vittuari, L and Williams, S and Willis, P, Improved Constraints on Models of Glacial Isostatic Adjustment: A Review of the Contribution of Ground-Based Geodetic Observations, Surveys in Geophysics, 31, (5) pp. 465-507. ISSN 0169-3298 (2010) [Refereed Article] http://ecite.utas.edu.au/82144 |
op_doi |
https://doi.org/10.1007/s10712-010-9100-4 |
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Surveys in Geophysics |
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31 |
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5 |
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465 |
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507 |
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1766272817563697152 |