The elastic–viscous–plastic method revisited
In this paper, we show that one of the most widely used methods to solve the non-linear viscous–plastic (VP) sea ice rheology, the elastic–viscous–plastic (EVP) method, generates artificial linear bands of high deformation that may be confounded with real linear kinematic features observed in...
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Language: | English |
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Elsevier Inc.
2013
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Online Access: | http://hdl.handle.net/2078.1/135796 https://doi.org/10.1016/j.ocemod.2013.05.013 |
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ftunistlouisbrus:oai:dial.uclouvain.be:boreal:135796 2024-05-12T08:00:00+00:00 The elastic–viscous–plastic method revisited Bouillon, Sylvain Fichefet, Thierry Madec, Gurvan Legat, Vincent UCL - SST/ELI/ELIC - Earth & Climate UCL - SST/IMMC/MEMA - Applied mechanics and mathematics 2013 http://hdl.handle.net/2078.1/135796 https://doi.org/10.1016/j.ocemod.2013.05.013 eng eng Elsevier Inc. boreal:135796 http://hdl.handle.net/2078.1/135796 doi:10.1016/j.ocemod.2013.05.013 urn:ISSN:1463-5003 urn:EISSN:1463-5011 info:eu-repo/semantics/restrictedAccess Ocean Modelling, Vol. 71, p. 2-12 (2013) Viscous–plastic rheology Elastic–viscous–plastic Sea ice NEMO CISM:CECI 1443 info:eu-repo/semantics/article 2013 ftunistlouisbrus https://doi.org/10.1016/j.ocemod.2013.05.013 2024-04-18T17:58:57Z In this paper, we show that one of the most widely used methods to solve the non-linear viscous–plastic (VP) sea ice rheology, the elastic–viscous–plastic (EVP) method, generates artificial linear bands of high deformation that may be confounded with real linear kinematic features observed in the Arctic ice pack. These numerical artefacts are easily filtered out by using a slightly different regularization of the internal stress. In addition, the EVP method is reinterpreted as an iterative solver and a clear distinction appears between the numerical and physical parameters. Two numerical parameters determine the stability and accuracy of the method and are adjusted to avoid the noisy ice deformation fields frequently observed with the EVP method in nearly rigid ice areas. This study also confirms the unsatisfactory numerical convergence of the EVP method and investigates the effects of the numerical parameters on sea ice deformation, internal stress and velocity fields obtained with unconverged solutions. Article in Journal/Newspaper Arctic ice pack Sea ice DIAL@USL-B (Université Saint-Louis, Bruxelles) Arctic Ocean Modelling 71 2 12 |
institution |
Open Polar |
collection |
DIAL@USL-B (Université Saint-Louis, Bruxelles) |
op_collection_id |
ftunistlouisbrus |
language |
English |
topic |
Viscous–plastic rheology Elastic–viscous–plastic Sea ice NEMO CISM:CECI 1443 |
spellingShingle |
Viscous–plastic rheology Elastic–viscous–plastic Sea ice NEMO CISM:CECI 1443 Bouillon, Sylvain Fichefet, Thierry Madec, Gurvan Legat, Vincent The elastic–viscous–plastic method revisited |
topic_facet |
Viscous–plastic rheology Elastic–viscous–plastic Sea ice NEMO CISM:CECI 1443 |
description |
In this paper, we show that one of the most widely used methods to solve the non-linear viscous–plastic (VP) sea ice rheology, the elastic–viscous–plastic (EVP) method, generates artificial linear bands of high deformation that may be confounded with real linear kinematic features observed in the Arctic ice pack. These numerical artefacts are easily filtered out by using a slightly different regularization of the internal stress. In addition, the EVP method is reinterpreted as an iterative solver and a clear distinction appears between the numerical and physical parameters. Two numerical parameters determine the stability and accuracy of the method and are adjusted to avoid the noisy ice deformation fields frequently observed with the EVP method in nearly rigid ice areas. This study also confirms the unsatisfactory numerical convergence of the EVP method and investigates the effects of the numerical parameters on sea ice deformation, internal stress and velocity fields obtained with unconverged solutions. |
author2 |
UCL - SST/ELI/ELIC - Earth & Climate UCL - SST/IMMC/MEMA - Applied mechanics and mathematics |
format |
Article in Journal/Newspaper |
author |
Bouillon, Sylvain Fichefet, Thierry Madec, Gurvan Legat, Vincent |
author_facet |
Bouillon, Sylvain Fichefet, Thierry Madec, Gurvan Legat, Vincent |
author_sort |
Bouillon, Sylvain |
title |
The elastic–viscous–plastic method revisited |
title_short |
The elastic–viscous–plastic method revisited |
title_full |
The elastic–viscous–plastic method revisited |
title_fullStr |
The elastic–viscous–plastic method revisited |
title_full_unstemmed |
The elastic–viscous–plastic method revisited |
title_sort |
elastic–viscous–plastic method revisited |
publisher |
Elsevier Inc. |
publishDate |
2013 |
url |
http://hdl.handle.net/2078.1/135796 https://doi.org/10.1016/j.ocemod.2013.05.013 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic ice pack Sea ice |
genre_facet |
Arctic ice pack Sea ice |
op_source |
Ocean Modelling, Vol. 71, p. 2-12 (2013) |
op_relation |
boreal:135796 http://hdl.handle.net/2078.1/135796 doi:10.1016/j.ocemod.2013.05.013 urn:ISSN:1463-5003 urn:EISSN:1463-5011 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.ocemod.2013.05.013 |
container_title |
Ocean Modelling |
container_volume |
71 |
container_start_page |
2 |
op_container_end_page |
12 |
_version_ |
1798841656829542400 |