Improved Constraints to 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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Online Access: | http://hdl.handle.net/11585/91811 https://doi.org/10.1007/s10712-010-9100-4 |
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ftunibolognairis:oai:cris.unibo.it:11585/91811 2024-09-15T17:47:05+00:00 Improved Constraints to Models of Glacial Isostatic Adjustment: A Review of the Contribution of Ground-based Geodetic Observations King M. A. Z. Altamimi J. Boehm M. Bos R. Dach P. Elosegui F. Fund M. Hernández Pajares D. Lavallée P. J. Mendes Cerveira N. Penna R. E. M. Riva P. Steigenberger T. van Dam S. Williams P. Willis VITTUARI, LUCA King M.A. Z. Altamimi J. Boehm M. Bo R. Dach P. Elosegui F. Fund M. Hernández-Pajare D. Lavallée P.J. Mendes Cerveira N. Penna R.E.M. Riva P. Steigenberger T. van Dam L. Vittuari S. William P. Willis 2010 STAMPA http://hdl.handle.net/11585/91811 https://doi.org/10.1007/s10712-010-9100-4 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000281564400001 volume:31 firstpage:465 lastpage:507 numberofpages:43 journal:SURVEYS IN GEOPHYSICS http://hdl.handle.net/11585/91811 doi:10.1007/s10712-010-9100-4 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-77956282276 GLACIAL ISOSTATIC ADJUSTMENT (GIA) ICE SHEET MASS BALANCE GEODESY ANTARCTICA GREENLAND info:eu-repo/semantics/article 2010 ftunibolognairis https://doi.org/10.1007/s10712-010-9100-4 2024-06-24T14:21:30Z 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 Ice Sheet IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) Surveys in Geophysics 31 5 465 507 |
institution |
Open Polar |
collection |
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) |
op_collection_id |
ftunibolognairis |
language |
English |
topic |
GLACIAL ISOSTATIC ADJUSTMENT (GIA) ICE SHEET MASS BALANCE GEODESY ANTARCTICA GREENLAND |
spellingShingle |
GLACIAL ISOSTATIC ADJUSTMENT (GIA) ICE SHEET MASS BALANCE GEODESY ANTARCTICA GREENLAND King M. A. Z. Altamimi J. Boehm M. Bos R. Dach P. Elosegui F. Fund M. Hernández Pajares D. Lavallée P. J. Mendes Cerveira N. Penna R. E. M. Riva P. Steigenberger T. van Dam S. Williams P. Willis VITTUARI, LUCA Improved Constraints to 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 |
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. |
author2 |
King M.A. Z. Altamimi J. Boehm M. Bo R. Dach P. Elosegui F. Fund M. Hernández-Pajare D. Lavallée P.J. Mendes Cerveira N. Penna R.E.M. Riva P. Steigenberger T. van Dam L. Vittuari S. William P. Willis |
format |
Article in Journal/Newspaper |
author |
King M. A. Z. Altamimi J. Boehm M. Bos R. Dach P. Elosegui F. Fund M. Hernández Pajares D. Lavallée P. J. Mendes Cerveira N. Penna R. E. M. Riva P. Steigenberger T. van Dam S. Williams P. Willis VITTUARI, LUCA |
author_facet |
King M. A. Z. Altamimi J. Boehm M. Bos R. Dach P. Elosegui F. Fund M. Hernández Pajares D. Lavallée P. J. Mendes Cerveira N. Penna R. E. M. Riva P. Steigenberger T. van Dam S. Williams P. Willis VITTUARI, LUCA |
author_sort |
King M. A. |
title |
Improved Constraints to Models of Glacial Isostatic Adjustment: A Review of the Contribution of Ground-based Geodetic Observations |
title_short |
Improved Constraints to Models of Glacial Isostatic Adjustment: A Review of the Contribution of Ground-based Geodetic Observations |
title_full |
Improved Constraints to Models of Glacial Isostatic Adjustment: A Review of the Contribution of Ground-based Geodetic Observations |
title_fullStr |
Improved Constraints to Models of Glacial Isostatic Adjustment: A Review of the Contribution of Ground-based Geodetic Observations |
title_full_unstemmed |
Improved Constraints to Models of Glacial Isostatic Adjustment: A Review of the Contribution of Ground-based Geodetic Observations |
title_sort |
improved constraints to models of glacial isostatic adjustment: a review of the contribution of ground-based geodetic observations |
publishDate |
2010 |
url |
http://hdl.handle.net/11585/91811 https://doi.org/10.1007/s10712-010-9100-4 |
genre |
Antarc* Antarctica Greenland Ice Sheet |
genre_facet |
Antarc* Antarctica Greenland Ice Sheet |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000281564400001 volume:31 firstpage:465 lastpage:507 numberofpages:43 journal:SURVEYS IN GEOPHYSICS http://hdl.handle.net/11585/91811 doi:10.1007/s10712-010-9100-4 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-77956282276 |
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 |
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1810495680553156608 |