Disentangling creep and isothermal metamorphism during snow settlement with X-ray tomography
International audience Once fallen, snow settles due to the combined effects of metamorphism and deformation of the ice matrix under gravity. To understand how these coupled processes affect snow evolution, we performed oedometric compression tests and continuously monitored the snow microstructure...
Published in: | Journal of Glaciology |
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Main Authors: | , , , |
Other Authors: | , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2023
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Subjects: | |
Online Access: | https://hal.science/hal-03906971 https://hal.science/hal-03906971/document https://hal.science/hal-03906971/file/Bernard2022_disentangling-creep-and-isothermal-metamorphism-during-snow-settlement-with-x-ray-tomography.pdf https://doi.org/10.1017/jog.2022.109 |
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ftinsu:oai:HAL:hal-03906971v1 |
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Open Polar |
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Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
Snow mechanics snow microstructure snow physics [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDE.IE]Environmental Sciences/Environmental Engineering [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
spellingShingle |
Snow mechanics snow microstructure snow physics [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDE.IE]Environmental Sciences/Environmental Engineering [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] Bernard, Antoine Hagenmuller, Pascal Montagnat, Maurine Chambon, Guillaume Disentangling creep and isothermal metamorphism during snow settlement with X-ray tomography |
topic_facet |
Snow mechanics snow microstructure snow physics [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDE.IE]Environmental Sciences/Environmental Engineering [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
description |
International audience Once fallen, snow settles due to the combined effects of metamorphism and deformation of the ice matrix under gravity. To understand how these coupled processes affect snow evolution, we performed oedometric compression tests and continuously monitored the snow microstructure with X-ray tomography. Centimetric samples with an initial density between 200 and 300 kg m −3 were followed during an initial sintering phase and under two different loads of 2.1 and 4.7 kPa at −8 • C for ∼1 week. The microstructure captured at a voxel size of 8.5 μm was characterized by density, specific surface area (SSA) and two metrics related to bond network, namely the Euler characteristic and the minimum cut surface. Load-induced creep of the ice matrix was observed only for sufficiently low values of initial density (<290 kg m −3 in our tests), and was shown to be associated to a significant increase of the number of bonds. Application of the load, however, did not affect the individual bond size nor the SSA, which appeared to be mainly controlled by isothermal metamorphism. The uniaxial compression did not induce any creation of anisotropy on the microstructural characteristics. Overall, our results show that, for the considered conditions, the deformation of the ice matrix mainly leads to a reduction of the pore space and an increase of the coordination number, while metamorphism mainly affects the grain and bond sizes. |
author2 |
Centre d'Etudes de la Neige (CEN) Centre national de recherches météorologiques (CNRM) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-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)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-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-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-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-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ) Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA)-Météo-France-Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA) Université de Toulouse (UT)-Université de Toulouse (UT)-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-Centre National de la Recherche Scientifique (CNRS) Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) Université Grenoble Alpes (UGA) Erosion torrentielle neige et avalanches (UR ETGR (ETNA)) Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
format |
Article in Journal/Newspaper |
author |
Bernard, Antoine Hagenmuller, Pascal Montagnat, Maurine Chambon, Guillaume |
author_facet |
Bernard, Antoine Hagenmuller, Pascal Montagnat, Maurine Chambon, Guillaume |
author_sort |
Bernard, Antoine |
title |
Disentangling creep and isothermal metamorphism during snow settlement with X-ray tomography |
title_short |
Disentangling creep and isothermal metamorphism during snow settlement with X-ray tomography |
title_full |
Disentangling creep and isothermal metamorphism during snow settlement with X-ray tomography |
title_fullStr |
Disentangling creep and isothermal metamorphism during snow settlement with X-ray tomography |
title_full_unstemmed |
Disentangling creep and isothermal metamorphism during snow settlement with X-ray tomography |
title_sort |
disentangling creep and isothermal metamorphism during snow settlement with x-ray tomography |
publisher |
HAL CCSD |
publishDate |
2023 |
url |
https://hal.science/hal-03906971 https://hal.science/hal-03906971/document https://hal.science/hal-03906971/file/Bernard2022_disentangling-creep-and-isothermal-metamorphism-during-snow-settlement-with-x-ray-tomography.pdf https://doi.org/10.1017/jog.2022.109 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
ISSN: 0022-1430 EISSN: 1727-5652 Journal of Glaciology https://hal.science/hal-03906971 Journal of Glaciology, 2023, 69 (276), pp.899-910. ⟨10.1017/jog.2022.109⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1017/jog.2022.109 hal-03906971 https://hal.science/hal-03906971 https://hal.science/hal-03906971/document https://hal.science/hal-03906971/file/Bernard2022_disentangling-creep-and-isothermal-metamorphism-during-snow-settlement-with-x-ray-tomography.pdf doi:10.1017/jog.2022.109 WOS: 000899870400001 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1017/jog.2022.109 |
container_title |
Journal of Glaciology |
container_start_page |
1 |
op_container_end_page |
12 |
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1796945641510797312 |
spelling |
ftinsu:oai:HAL:hal-03906971v1 2024-04-21T08:06:18+00:00 Disentangling creep and isothermal metamorphism during snow settlement with X-ray tomography Bernard, Antoine Hagenmuller, Pascal Montagnat, Maurine Chambon, Guillaume Centre d'Etudes de la Neige (CEN) Centre national de recherches météorologiques (CNRM) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-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)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-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-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-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-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ) Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA)-Météo-France-Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA) Université de Toulouse (UT)-Université de Toulouse (UT)-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-Centre National de la Recherche Scientifique (CNRS) Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) Université Grenoble Alpes (UGA) Erosion torrentielle neige et avalanches (UR ETGR (ETNA)) Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) 2023 https://hal.science/hal-03906971 https://hal.science/hal-03906971/document https://hal.science/hal-03906971/file/Bernard2022_disentangling-creep-and-isothermal-metamorphism-during-snow-settlement-with-x-ray-tomography.pdf https://doi.org/10.1017/jog.2022.109 en eng HAL CCSD International Glaciological Society info:eu-repo/semantics/altIdentifier/doi/10.1017/jog.2022.109 hal-03906971 https://hal.science/hal-03906971 https://hal.science/hal-03906971/document https://hal.science/hal-03906971/file/Bernard2022_disentangling-creep-and-isothermal-metamorphism-during-snow-settlement-with-x-ray-tomography.pdf doi:10.1017/jog.2022.109 WOS: 000899870400001 info:eu-repo/semantics/OpenAccess ISSN: 0022-1430 EISSN: 1727-5652 Journal of Glaciology https://hal.science/hal-03906971 Journal of Glaciology, 2023, 69 (276), pp.899-910. ⟨10.1017/jog.2022.109⟩ Snow mechanics snow microstructure snow physics [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDE.IE]Environmental Sciences/Environmental Engineering [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] info:eu-repo/semantics/article Journal articles 2023 ftinsu https://doi.org/10.1017/jog.2022.109 2024-04-05T00:31:05Z International audience Once fallen, snow settles due to the combined effects of metamorphism and deformation of the ice matrix under gravity. To understand how these coupled processes affect snow evolution, we performed oedometric compression tests and continuously monitored the snow microstructure with X-ray tomography. Centimetric samples with an initial density between 200 and 300 kg m −3 were followed during an initial sintering phase and under two different loads of 2.1 and 4.7 kPa at −8 • C for ∼1 week. The microstructure captured at a voxel size of 8.5 μm was characterized by density, specific surface area (SSA) and two metrics related to bond network, namely the Euler characteristic and the minimum cut surface. Load-induced creep of the ice matrix was observed only for sufficiently low values of initial density (<290 kg m −3 in our tests), and was shown to be associated to a significant increase of the number of bonds. Application of the load, however, did not affect the individual bond size nor the SSA, which appeared to be mainly controlled by isothermal metamorphism. The uniaxial compression did not induce any creation of anisotropy on the microstructural characteristics. Overall, our results show that, for the considered conditions, the deformation of the ice matrix mainly leads to a reduction of the pore space and an increase of the coordination number, while metamorphism mainly affects the grain and bond sizes. Article in Journal/Newspaper Journal of Glaciology Institut national des sciences de l'Univers: HAL-INSU Journal of Glaciology 1 12 |