A glacier-ocean interaction model for tsunami genesis due to iceberg calving
Dynamic glacier fracture and the subsequent generation and propagation of iceberg-induced tsunamis are reproduced using a unified numerical glacier-ocean model, in line with observations at the Eqip Sermia glacier in Greenland, as well as laboratory experiments. Glaciers calving icebergs into the oc...
Published in: | Communications Earth & Environment |
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2021
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Online Access: | https://doi.org/10.1038/s43247-021-00179-7 https://infoscience.epfl.ch/record/287384/files/s43247-021-00179-7.pdf http://infoscience.epfl.ch/record/287384 |
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ftinfoscience:oai:infoscience.epfl.ch:287384 2023-05-15T16:21:00+02:00 A glacier-ocean interaction model for tsunami genesis due to iceberg calving Wolper, Joshuah Gao, Ming Luthi, Martin P. Heller, Valentin Vieli, Andreas Jiang, Chenfanfu Gaume, Johan 2021-07-17T00:34:39Z https://doi.org/10.1038/s43247-021-00179-7 https://infoscience.epfl.ch/record/287384/files/s43247-021-00179-7.pdf http://infoscience.epfl.ch/record/287384 unknown London, SPRINGERNATURE isi:000665077400001 doi:10.1038/s43247-021-00179-7 https://infoscience.epfl.ch/record/287384/files/s43247-021-00179-7.pdf http://infoscience.epfl.ch/record/287384 http://infoscience.epfl.ch/record/287384 Text 2021 ftinfoscience https://doi.org/10.1038/s43247-021-00179-7 2023-02-13T23:05:59Z Dynamic glacier fracture and the subsequent generation and propagation of iceberg-induced tsunamis are reproduced using a unified numerical glacier-ocean model, in line with observations at the Eqip Sermia glacier in Greenland, as well as laboratory experiments. Glaciers calving icebergs into the ocean significantly contribute to sea-level rise and can trigger tsunamis, posing severe hazards for coastal regions. Computational modeling of such multiphase processes is a great challenge involving complex solid-fluid interactions. Here, a new continuum damage Material Point Method has been developed to model dynamic glacier fracture under the combined effects of gravity and buoyancy, as well as the subsequent propagation of tsunami-like waves induced by released icebergs. We reproduce the main features of tsunamis obtained in laboratory experiments as well as calving characteristics, the iceberg size, tsunami amplitude and wave speed measured at Eqip Sermia, an ocean-terminating outlet glacier of the Greenland ice sheet. Our hybrid approach constitutes important progress towards the modeling of solid-fluid interactions, and has the potential to contribute to refining empirical calving laws used in large-scale earth-system models as well as to improve hazard assessments and mitigation measures in coastal regions, which is essential in the context of climate change. Text glacier Greenland Ice Sheet EPFL Infoscience (Ecole Polytechnique Fédérale Lausanne) Eqip Sermia ENVELOPE(-50.067,-50.067,69.817,69.817) Greenland Communications Earth & Environment 2 1 |
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Open Polar |
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EPFL Infoscience (Ecole Polytechnique Fédérale Lausanne) |
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ftinfoscience |
language |
unknown |
description |
Dynamic glacier fracture and the subsequent generation and propagation of iceberg-induced tsunamis are reproduced using a unified numerical glacier-ocean model, in line with observations at the Eqip Sermia glacier in Greenland, as well as laboratory experiments. Glaciers calving icebergs into the ocean significantly contribute to sea-level rise and can trigger tsunamis, posing severe hazards for coastal regions. Computational modeling of such multiphase processes is a great challenge involving complex solid-fluid interactions. Here, a new continuum damage Material Point Method has been developed to model dynamic glacier fracture under the combined effects of gravity and buoyancy, as well as the subsequent propagation of tsunami-like waves induced by released icebergs. We reproduce the main features of tsunamis obtained in laboratory experiments as well as calving characteristics, the iceberg size, tsunami amplitude and wave speed measured at Eqip Sermia, an ocean-terminating outlet glacier of the Greenland ice sheet. Our hybrid approach constitutes important progress towards the modeling of solid-fluid interactions, and has the potential to contribute to refining empirical calving laws used in large-scale earth-system models as well as to improve hazard assessments and mitigation measures in coastal regions, which is essential in the context of climate change. |
format |
Text |
author |
Wolper, Joshuah Gao, Ming Luthi, Martin P. Heller, Valentin Vieli, Andreas Jiang, Chenfanfu Gaume, Johan |
spellingShingle |
Wolper, Joshuah Gao, Ming Luthi, Martin P. Heller, Valentin Vieli, Andreas Jiang, Chenfanfu Gaume, Johan A glacier-ocean interaction model for tsunami genesis due to iceberg calving |
author_facet |
Wolper, Joshuah Gao, Ming Luthi, Martin P. Heller, Valentin Vieli, Andreas Jiang, Chenfanfu Gaume, Johan |
author_sort |
Wolper, Joshuah |
title |
A glacier-ocean interaction model for tsunami genesis due to iceberg calving |
title_short |
A glacier-ocean interaction model for tsunami genesis due to iceberg calving |
title_full |
A glacier-ocean interaction model for tsunami genesis due to iceberg calving |
title_fullStr |
A glacier-ocean interaction model for tsunami genesis due to iceberg calving |
title_full_unstemmed |
A glacier-ocean interaction model for tsunami genesis due to iceberg calving |
title_sort |
glacier-ocean interaction model for tsunami genesis due to iceberg calving |
publisher |
London, SPRINGERNATURE |
publishDate |
2021 |
url |
https://doi.org/10.1038/s43247-021-00179-7 https://infoscience.epfl.ch/record/287384/files/s43247-021-00179-7.pdf http://infoscience.epfl.ch/record/287384 |
long_lat |
ENVELOPE(-50.067,-50.067,69.817,69.817) |
geographic |
Eqip Sermia Greenland |
geographic_facet |
Eqip Sermia Greenland |
genre |
glacier Greenland Ice Sheet |
genre_facet |
glacier Greenland Ice Sheet |
op_source |
http://infoscience.epfl.ch/record/287384 |
op_relation |
isi:000665077400001 doi:10.1038/s43247-021-00179-7 https://infoscience.epfl.ch/record/287384/files/s43247-021-00179-7.pdf http://infoscience.epfl.ch/record/287384 |
op_doi |
https://doi.org/10.1038/s43247-021-00179-7 |
container_title |
Communications Earth & Environment |
container_volume |
2 |
container_issue |
1 |
_version_ |
1766009009484070912 |