Isostatic stability of the East Antarctic station Dumont d'Urville from long-term geodetic observations and geophysical models
International audience Geodetic measurements of the vertical crustal displacement collocated with absolute gravity changes provide a discriminatory measurement of present-day glacial changes, versus more deeply seated rock motions caused by glacial isostatic adjustment (GIA). At the East Antarctic s...
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ftunivnantes:oai:HAL:hal-00406845v1 2023-05-15T13:42:27+02:00 Isostatic stability of the East Antarctic station Dumont d'Urville from long-term geodetic observations and geophysical models Amalvict, M. Willis, Pascal Wöppelmann, G. Ivins, E.R. Bouin, Marie-Noelle Testut, L. Hinderer, J. Institut de physique du globe de Strasbourg (IPGS) Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Institut géographique national IGN (IGN) Centre littoral de géophysique (CLDG) Institut du Littoral et de l'Environnement-La Rochelle Université (ULR) LAboratoire de Recherche en Géodésie (LAREG) Ecole nationale des sciences géographiques (ENSG) Institut géographique national IGN (IGN)-Institut géographique national IGN (IGN) Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS) 2009 https://hal.science/hal-00406845 https://doi.org/10.1111/j.1751-8369.2008.00091.x en eng HAL CCSD Co-Action Publishing info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1751-8369.2008.00091.x hal-00406845 https://hal.science/hal-00406845 doi:10.1111/j.1751-8369.2008.00091.x ISSN: 0800-0395 EISSN: 1751-8369 Polar Research https://hal.science/hal-00406845 Polar Research, 2009, pp.1-10. ⟨10.1111/j.1751-8369.2008.00091.x⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2009 ftunivnantes https://doi.org/10.1111/j.1751-8369.2008.00091.x 2023-02-22T00:33:13Z International audience Geodetic measurements of the vertical crustal displacement collocated with absolute gravity changes provide a discriminatory measurement of present-day glacial changes, versus more deeply seated rock motions caused by glacial isostatic adjustment (GIA). At the East Antarctic station of Dumont d'Urville, we compare the displacements derived from continuous DORIS (1993.0–2006.0) and Global Positioning System (GPS) (1999.0–2005.7) data, and observed changes in absolute gravity (2000–2006), with the predicted vertical displacement and change in gravity from GIA modelling. The geodetic results have mutual self-consistency, suggest station stability and provide upper bounds on both GIA and secular ice mass changes. The GIA models tend to predict amplitudes of rock motion larger than those observed, and we conclude that this part of Antarctica is probably experiencing a slight gain in ice mass, in contrast to West Antarctica. Article in Journal/Newspaper Antarc* Antarctic Antarctica Polar Research West Antarctica Université de Nantes: HAL-UNIV-NANTES Antarctic Dumont d'Urville ENVELOPE(140.017,140.017,-66.667,-66.667) Dumont-d'Urville ENVELOPE(140.013,140.013,-66.667,-66.667) West Antarctica Polar Research 28 2 193 202 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Amalvict, M. Willis, Pascal Wöppelmann, G. Ivins, E.R. Bouin, Marie-Noelle Testut, L. Hinderer, J. Isostatic stability of the East Antarctic station Dumont d'Urville from long-term geodetic observations and geophysical models |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience Geodetic measurements of the vertical crustal displacement collocated with absolute gravity changes provide a discriminatory measurement of present-day glacial changes, versus more deeply seated rock motions caused by glacial isostatic adjustment (GIA). At the East Antarctic station of Dumont d'Urville, we compare the displacements derived from continuous DORIS (1993.0–2006.0) and Global Positioning System (GPS) (1999.0–2005.7) data, and observed changes in absolute gravity (2000–2006), with the predicted vertical displacement and change in gravity from GIA modelling. The geodetic results have mutual self-consistency, suggest station stability and provide upper bounds on both GIA and secular ice mass changes. The GIA models tend to predict amplitudes of rock motion larger than those observed, and we conclude that this part of Antarctica is probably experiencing a slight gain in ice mass, in contrast to West Antarctica. |
author2 |
Institut de physique du globe de Strasbourg (IPGS) Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Institut géographique national IGN (IGN) Centre littoral de géophysique (CLDG) Institut du Littoral et de l'Environnement-La Rochelle Université (ULR) LAboratoire de Recherche en Géodésie (LAREG) Ecole nationale des sciences géographiques (ENSG) Institut géographique national IGN (IGN)-Institut géographique national IGN (IGN) Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Amalvict, M. Willis, Pascal Wöppelmann, G. Ivins, E.R. Bouin, Marie-Noelle Testut, L. Hinderer, J. |
author_facet |
Amalvict, M. Willis, Pascal Wöppelmann, G. Ivins, E.R. Bouin, Marie-Noelle Testut, L. Hinderer, J. |
author_sort |
Amalvict, M. |
title |
Isostatic stability of the East Antarctic station Dumont d'Urville from long-term geodetic observations and geophysical models |
title_short |
Isostatic stability of the East Antarctic station Dumont d'Urville from long-term geodetic observations and geophysical models |
title_full |
Isostatic stability of the East Antarctic station Dumont d'Urville from long-term geodetic observations and geophysical models |
title_fullStr |
Isostatic stability of the East Antarctic station Dumont d'Urville from long-term geodetic observations and geophysical models |
title_full_unstemmed |
Isostatic stability of the East Antarctic station Dumont d'Urville from long-term geodetic observations and geophysical models |
title_sort |
isostatic stability of the east antarctic station dumont d'urville from long-term geodetic observations and geophysical models |
publisher |
HAL CCSD |
publishDate |
2009 |
url |
https://hal.science/hal-00406845 https://doi.org/10.1111/j.1751-8369.2008.00091.x |
long_lat |
ENVELOPE(140.017,140.017,-66.667,-66.667) ENVELOPE(140.013,140.013,-66.667,-66.667) |
geographic |
Antarctic Dumont d'Urville Dumont-d'Urville West Antarctica |
geographic_facet |
Antarctic Dumont d'Urville Dumont-d'Urville West Antarctica |
genre |
Antarc* Antarctic Antarctica Polar Research West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica Polar Research West Antarctica |
op_source |
ISSN: 0800-0395 EISSN: 1751-8369 Polar Research https://hal.science/hal-00406845 Polar Research, 2009, pp.1-10. ⟨10.1111/j.1751-8369.2008.00091.x⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1751-8369.2008.00091.x hal-00406845 https://hal.science/hal-00406845 doi:10.1111/j.1751-8369.2008.00091.x |
op_doi |
https://doi.org/10.1111/j.1751-8369.2008.00091.x |
container_title |
Polar Research |
container_volume |
28 |
container_issue |
2 |
container_start_page |
193 |
op_container_end_page |
202 |
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1766168061878992896 |