Solid Earth’s response to climate change in Svalbard monitored by space geodesy
International audience The Svalbard archipelago in the Arctic is extremely sensitive to climate change. The resulting redistribution of mass, including recent and past ice melt, induces deformations of the Earth's surface and temporal variations in its gravity field, which can be detected by sp...
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ftunivrennes2hal:oai:HAL:hal-04681391v1 2024-09-30T14:31:21+00:00 Solid Earth’s response to climate change in Svalbard monitored by space geodesy Tafflet, Alicia Nicolas, Joelle Boy, Jean-Paul Lemoine, Jean-Michel Perosanz, Félix Durand, Frédéric Koulali, Achraf Gourillon, Lissa Baltzer, Agnès Verdun, Jérôme Laboratoire Géomatique et foncier (GeF) Conservatoire National des Arts et Métiers CNAM (CNAM) Institut Terre Environnement Strasbourg (ITES) École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Centre National d'Études Spatiales Toulouse (CNES) School of Engineering Newcastle Newcastle University Newcastle Littoral, Environnement, Télédétection, Géomatique (LETG - Nantes ) Université de Brest (UBO)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Littoral, Environnement, Télédétection, Géomatique UMR 6554 (LETG) Université de Brest (UBO)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut de Géographie et d'Aménagement Régional de l'Université de Nantes (Nantes Univ - IGARUN) Nantes Université - pôle Humanités Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Humanités Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Centre National de la Recherche Scientifique (CNRS)-Institut de Géographie et d'Aménagement Régional de l'Université de Nantes (Nantes Univ - IGARUN) Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ) Vienne, Austria 2024-04-14 https://cnam.hal.science/hal-04681391 https://doi.org/10.5194/egusphere-egu24-11433 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu24-11433 hal-04681391 https://cnam.hal.science/hal-04681391 doi:10.5194/egusphere-egu24-11433 European Geosciences Union (EGU) General Assembly 2024 https://cnam.hal.science/hal-04681391 European Geosciences Union (EGU) General Assembly 2024, Apr 2024, Vienne, Austria. ⟨10.5194/egusphere-egu24-11433⟩ [SDE]Environmental Sciences info:eu-repo/semantics/conferenceObject Conference papers 2024 ftunivrennes2hal https://doi.org/10.5194/egusphere-egu24-11433 2024-09-01T23:40:07Z International audience The Svalbard archipelago in the Arctic is extremely sensitive to climate change. The resulting redistribution of mass, including recent and past ice melt, induces deformations of the Earth's surface and temporal variations in its gravity field, which can be detected by space geodesy. The cross-comparison of different techniques takes advantage of their complementary temporal and spatial resolutions, helping to distinguish between local, regional and global signals. We analyse more than 20 years of GNSS (Global Navigation Satellite System) satellite 3D positionning solutions at 17 permanent sites. The results are compared with deformations computed from time gravity field variations observed by the space gravimetry missions GRACE (Gravity Recovery and Climate Experiment) and GRACE Follow-On. The mean vertical motion is of about 9 mm/year and can reach 15 mm/year. We then compare these GNSS and GRACE datasets with Little Ice Age (LIA) and Global Isostatic Adjustment (GIA) models as well as with satellite altimetry observations from Cryosat-2 and IceSat-2. We infer the various contributions and quantify the impact of the current climate change on Svalbard. In addition to better estimate the acceleration of the current ice melting we apply an innovative seasonal adjustment method. The results are then discussed in relation to in situ observations. Conference Object Arctic Climate change Svalbard Archive Ouverte de l'Université Rennes (HAL) Arctic Svalbard Svalbard Archipelago |
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Open Polar |
collection |
Archive Ouverte de l'Université Rennes (HAL) |
op_collection_id |
ftunivrennes2hal |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Tafflet, Alicia Nicolas, Joelle Boy, Jean-Paul Lemoine, Jean-Michel Perosanz, Félix Durand, Frédéric Koulali, Achraf Gourillon, Lissa Baltzer, Agnès Verdun, Jérôme Solid Earth’s response to climate change in Svalbard monitored by space geodesy |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience The Svalbard archipelago in the Arctic is extremely sensitive to climate change. The resulting redistribution of mass, including recent and past ice melt, induces deformations of the Earth's surface and temporal variations in its gravity field, which can be detected by space geodesy. The cross-comparison of different techniques takes advantage of their complementary temporal and spatial resolutions, helping to distinguish between local, regional and global signals. We analyse more than 20 years of GNSS (Global Navigation Satellite System) satellite 3D positionning solutions at 17 permanent sites. The results are compared with deformations computed from time gravity field variations observed by the space gravimetry missions GRACE (Gravity Recovery and Climate Experiment) and GRACE Follow-On. The mean vertical motion is of about 9 mm/year and can reach 15 mm/year. We then compare these GNSS and GRACE datasets with Little Ice Age (LIA) and Global Isostatic Adjustment (GIA) models as well as with satellite altimetry observations from Cryosat-2 and IceSat-2. We infer the various contributions and quantify the impact of the current climate change on Svalbard. In addition to better estimate the acceleration of the current ice melting we apply an innovative seasonal adjustment method. The results are then discussed in relation to in situ observations. |
author2 |
Laboratoire Géomatique et foncier (GeF) Conservatoire National des Arts et Métiers CNAM (CNAM) Institut Terre Environnement Strasbourg (ITES) École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Centre National d'Études Spatiales Toulouse (CNES) School of Engineering Newcastle Newcastle University Newcastle Littoral, Environnement, Télédétection, Géomatique (LETG - Nantes ) Université de Brest (UBO)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Littoral, Environnement, Télédétection, Géomatique UMR 6554 (LETG) Université de Brest (UBO)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut de Géographie et d'Aménagement Régional de l'Université de Nantes (Nantes Univ - IGARUN) Nantes Université - pôle Humanités Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Humanités Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Centre National de la Recherche Scientifique (CNRS)-Institut de Géographie et d'Aménagement Régional de l'Université de Nantes (Nantes Univ - IGARUN) Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ) |
format |
Conference Object |
author |
Tafflet, Alicia Nicolas, Joelle Boy, Jean-Paul Lemoine, Jean-Michel Perosanz, Félix Durand, Frédéric Koulali, Achraf Gourillon, Lissa Baltzer, Agnès Verdun, Jérôme |
author_facet |
Tafflet, Alicia Nicolas, Joelle Boy, Jean-Paul Lemoine, Jean-Michel Perosanz, Félix Durand, Frédéric Koulali, Achraf Gourillon, Lissa Baltzer, Agnès Verdun, Jérôme |
author_sort |
Tafflet, Alicia |
title |
Solid Earth’s response to climate change in Svalbard monitored by space geodesy |
title_short |
Solid Earth’s response to climate change in Svalbard monitored by space geodesy |
title_full |
Solid Earth’s response to climate change in Svalbard monitored by space geodesy |
title_fullStr |
Solid Earth’s response to climate change in Svalbard monitored by space geodesy |
title_full_unstemmed |
Solid Earth’s response to climate change in Svalbard monitored by space geodesy |
title_sort |
solid earth’s response to climate change in svalbard monitored by space geodesy |
publisher |
HAL CCSD |
publishDate |
2024 |
url |
https://cnam.hal.science/hal-04681391 https://doi.org/10.5194/egusphere-egu24-11433 |
op_coverage |
Vienne, Austria |
geographic |
Arctic Svalbard Svalbard Archipelago |
geographic_facet |
Arctic Svalbard Svalbard Archipelago |
genre |
Arctic Climate change Svalbard |
genre_facet |
Arctic Climate change Svalbard |
op_source |
European Geosciences Union (EGU) General Assembly 2024 https://cnam.hal.science/hal-04681391 European Geosciences Union (EGU) General Assembly 2024, Apr 2024, Vienne, Austria. ⟨10.5194/egusphere-egu24-11433⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu24-11433 hal-04681391 https://cnam.hal.science/hal-04681391 doi:10.5194/egusphere-egu24-11433 |
op_doi |
https://doi.org/10.5194/egusphere-egu24-11433 |
_version_ |
1811635951420571648 |