Sea Ice Thickness and Elastic Properties From the Analysis of Multimodal Guided Wave Propagation Measured With a Passive Seismic Array
International audience Field data are needed for a better understanding of sea ice decline in the context of climate change. The rapid technological and methodological advances of the last decade have led to a reconsideration of seismic methods in this matter. In particular, passive seismology has f...
Published in: | Journal of Geophysical Research: Oceans |
---|---|
Main Authors: | , , , , , , , , , , , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2020
|
Subjects: | |
Online Access: | https://hal.science/hal-03014333 https://hal.science/hal-03014333/document https://hal.science/hal-03014333/file/Moreau%20JGR%20Svalbard%202020.pdf https://doi.org/10.1029/2019JC015709 |
id |
ftunigrenoble:oai:HAL:hal-03014333v1 |
---|---|
record_format |
openpolar |
spelling |
ftunigrenoble:oai:HAL:hal-03014333v1 2024-04-28T08:37:35+00:00 Sea Ice Thickness and Elastic Properties From the Analysis of Multimodal Guided Wave Propagation Measured With a Passive Seismic Array Moreau, Ludovic Boué, Pierre Serripierri, Agathe Weiss, Jérôme Hollis, Daniel Pondaven, Ildut Garambois, Stéphane Larose, Éric Helmstetter, Agnès Stehly, Laurent Hillers, Gregor Gilbert, Olivier Vial, Benjamin Institut des Sciences de la Terre (ISTerre) Institut de Recherche pour le Développement (IRD)-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)-Université Gustave Eiffel-Université Grenoble Alpes (UGA) 2020-04 https://hal.science/hal-03014333 https://hal.science/hal-03014333/document https://hal.science/hal-03014333/file/Moreau%20JGR%20Svalbard%202020.pdf https://doi.org/10.1029/2019JC015709 en eng HAL CCSD Wiley-Blackwell info:eu-repo/semantics/altIdentifier/doi/10.1029/2019JC015709 hal-03014333 https://hal.science/hal-03014333 https://hal.science/hal-03014333/document https://hal.science/hal-03014333/file/Moreau%20JGR%20Svalbard%202020.pdf doi:10.1029/2019JC015709 info:eu-repo/semantics/OpenAccess ISSN: 2169-9275 EISSN: 2169-9291 Journal of Geophysical Research. Oceans https://hal.science/hal-03014333 Journal of Geophysical Research. Oceans, 2020, 125 (4), ⟨10.1029/2019JC015709⟩ [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology info:eu-repo/semantics/article Journal articles 2020 ftunigrenoble https://doi.org/10.1029/2019JC015709 2024-04-18T03:25:08Z International audience Field data are needed for a better understanding of sea ice decline in the context of climate change. The rapid technological and methodological advances of the last decade have led to a reconsideration of seismic methods in this matter. In particular, passive seismology has filled an important gap by removing the need to use active sources. We present a seismic experiment where an array of 247 geophones was deployed on sea ice, in the Van Mijen fjord near Sveagruva (Svalbard). The array is a mix of 1C and 3C stations with sampling frequencies of 500 and 1000 Hz. They recorded continuously the ambient seismic field in sea ice between 28 February and 26 March 2019. Data also include active acquisitions on 1 and 26 March with a radar antenna, a shaker unit, impulsive sources, and artificial sources of seismic noise. This data set is of unprecedented quality regarding sea ice seismic monitoring, as it also includes thousands of microseismic events recorded each day. By combining passive seismology approaches with specific array processing methods, we demonstrate that the multimodal dispersion curves of sea ice can be calculated without an active source and then used to infer sea ice properties. We calculated an ice thickness, Young's modulus, and Poisson's ratio with values h=54±3 cm, E=3.9±0.15 GPa, and ν=0.34±0.02 on 1 March, and h=58±3 cm, E=4.4±0.15 GPa, and ν=0.32±0.02 on 5 March. These values are consistent with in situ field measurements and observations. Article in Journal/Newspaper Sea ice Svalbard Sveagruva Université Grenoble Alpes: HAL Journal of Geophysical Research: Oceans 125 4 |
institution |
Open Polar |
collection |
Université Grenoble Alpes: HAL |
op_collection_id |
ftunigrenoble |
language |
English |
topic |
[SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
spellingShingle |
[SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology Moreau, Ludovic Boué, Pierre Serripierri, Agathe Weiss, Jérôme Hollis, Daniel Pondaven, Ildut Garambois, Stéphane Larose, Éric Helmstetter, Agnès Stehly, Laurent Hillers, Gregor Gilbert, Olivier Vial, Benjamin Sea Ice Thickness and Elastic Properties From the Analysis of Multimodal Guided Wave Propagation Measured With a Passive Seismic Array |
topic_facet |
[SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
description |
International audience Field data are needed for a better understanding of sea ice decline in the context of climate change. The rapid technological and methodological advances of the last decade have led to a reconsideration of seismic methods in this matter. In particular, passive seismology has filled an important gap by removing the need to use active sources. We present a seismic experiment where an array of 247 geophones was deployed on sea ice, in the Van Mijen fjord near Sveagruva (Svalbard). The array is a mix of 1C and 3C stations with sampling frequencies of 500 and 1000 Hz. They recorded continuously the ambient seismic field in sea ice between 28 February and 26 March 2019. Data also include active acquisitions on 1 and 26 March with a radar antenna, a shaker unit, impulsive sources, and artificial sources of seismic noise. This data set is of unprecedented quality regarding sea ice seismic monitoring, as it also includes thousands of microseismic events recorded each day. By combining passive seismology approaches with specific array processing methods, we demonstrate that the multimodal dispersion curves of sea ice can be calculated without an active source and then used to infer sea ice properties. We calculated an ice thickness, Young's modulus, and Poisson's ratio with values h=54±3 cm, E=3.9±0.15 GPa, and ν=0.34±0.02 on 1 March, and h=58±3 cm, E=4.4±0.15 GPa, and ν=0.32±0.02 on 5 March. These values are consistent with in situ field measurements and observations. |
author2 |
Institut des Sciences de la Terre (ISTerre) Institut de Recherche pour le Développement (IRD)-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)-Université Gustave Eiffel-Université Grenoble Alpes (UGA) |
format |
Article in Journal/Newspaper |
author |
Moreau, Ludovic Boué, Pierre Serripierri, Agathe Weiss, Jérôme Hollis, Daniel Pondaven, Ildut Garambois, Stéphane Larose, Éric Helmstetter, Agnès Stehly, Laurent Hillers, Gregor Gilbert, Olivier Vial, Benjamin |
author_facet |
Moreau, Ludovic Boué, Pierre Serripierri, Agathe Weiss, Jérôme Hollis, Daniel Pondaven, Ildut Garambois, Stéphane Larose, Éric Helmstetter, Agnès Stehly, Laurent Hillers, Gregor Gilbert, Olivier Vial, Benjamin |
author_sort |
Moreau, Ludovic |
title |
Sea Ice Thickness and Elastic Properties From the Analysis of Multimodal Guided Wave Propagation Measured With a Passive Seismic Array |
title_short |
Sea Ice Thickness and Elastic Properties From the Analysis of Multimodal Guided Wave Propagation Measured With a Passive Seismic Array |
title_full |
Sea Ice Thickness and Elastic Properties From the Analysis of Multimodal Guided Wave Propagation Measured With a Passive Seismic Array |
title_fullStr |
Sea Ice Thickness and Elastic Properties From the Analysis of Multimodal Guided Wave Propagation Measured With a Passive Seismic Array |
title_full_unstemmed |
Sea Ice Thickness and Elastic Properties From the Analysis of Multimodal Guided Wave Propagation Measured With a Passive Seismic Array |
title_sort |
sea ice thickness and elastic properties from the analysis of multimodal guided wave propagation measured with a passive seismic array |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.science/hal-03014333 https://hal.science/hal-03014333/document https://hal.science/hal-03014333/file/Moreau%20JGR%20Svalbard%202020.pdf https://doi.org/10.1029/2019JC015709 |
genre |
Sea ice Svalbard Sveagruva |
genre_facet |
Sea ice Svalbard Sveagruva |
op_source |
ISSN: 2169-9275 EISSN: 2169-9291 Journal of Geophysical Research. Oceans https://hal.science/hal-03014333 Journal of Geophysical Research. Oceans, 2020, 125 (4), ⟨10.1029/2019JC015709⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2019JC015709 hal-03014333 https://hal.science/hal-03014333 https://hal.science/hal-03014333/document https://hal.science/hal-03014333/file/Moreau%20JGR%20Svalbard%202020.pdf doi:10.1029/2019JC015709 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2019JC015709 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
125 |
container_issue |
4 |
_version_ |
1797568952140824576 |