Comparison of elastic-viscous-plastic and viscous-plastic dynamics models using a high resolution Arctic sea ice model
A nonlinear viscous-plastic (VP) rheology proposed by Hibler (1979) has been demonstrated to be the most suitable of the rheologies commonly used for modeling sea ice dynamics. However, the presence of a huge range of effective viscosities hinders numerical implementations of this model, particularl...
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ftosti:oai:osti.gov:563300 2023-07-30T04:01:12+02:00 Comparison of elastic-viscous-plastic and viscous-plastic dynamics models using a high resolution Arctic sea ice model Hunke, E.C. Zhang, Y. 2009-12-10 application/pdf http://www.osti.gov/servlets/purl/563300 https://www.osti.gov/biblio/563300 https://doi.org/10.2172/563300 unknown http://www.osti.gov/servlets/purl/563300 https://www.osti.gov/biblio/563300 https://doi.org/10.2172/563300 doi:10.2172/563300 54 ENVIRONMENTAL SCIENCES ICEBERGS MATHEMATICAL MODELS ARCTIC OCEAN COMPARATIVE EVALUATIONS DYNAMICS RHEOLOGY CLIMATES THEORETICAL DATA 2009 ftosti https://doi.org/10.2172/563300 2023-07-11T08:35:01Z A nonlinear viscous-plastic (VP) rheology proposed by Hibler (1979) has been demonstrated to be the most suitable of the rheologies commonly used for modeling sea ice dynamics. However, the presence of a huge range of effective viscosities hinders numerical implementations of this model, particularly on high resolution grids or when the ice model is coupled to an ocean or atmosphere model. Hunke and Dukowicz (1997) have modified the VP model by including elastic waves as a numerical regularization in the case of zero strain rate. This modification (EVP) allows an efficient, fully explicit discretization that adapts well to parallel architectures. The authors present a comparison of EVP and VP dynamics model results from two 5-year simulations of Arctic sea ice, obtained with a high resolution sea ice model. The purpose of the comparison is to determine how differently the two dynamics models behave, and to decide whether the elastic-viscous-plastic model is preferable for high resolution climate simulations, considering its high efficiency in parallel computation. Results from the first year of this experiment (1990) are discussed in detail in Hunke and Zhang (1997). Other/Unknown Material Arctic Arctic Ocean Iceberg* Sea ice SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Arctic Arctic Ocean |
institution |
Open Polar |
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SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
op_collection_id |
ftosti |
language |
unknown |
topic |
54 ENVIRONMENTAL SCIENCES ICEBERGS MATHEMATICAL MODELS ARCTIC OCEAN COMPARATIVE EVALUATIONS DYNAMICS RHEOLOGY CLIMATES THEORETICAL DATA |
spellingShingle |
54 ENVIRONMENTAL SCIENCES ICEBERGS MATHEMATICAL MODELS ARCTIC OCEAN COMPARATIVE EVALUATIONS DYNAMICS RHEOLOGY CLIMATES THEORETICAL DATA Hunke, E.C. Zhang, Y. Comparison of elastic-viscous-plastic and viscous-plastic dynamics models using a high resolution Arctic sea ice model |
topic_facet |
54 ENVIRONMENTAL SCIENCES ICEBERGS MATHEMATICAL MODELS ARCTIC OCEAN COMPARATIVE EVALUATIONS DYNAMICS RHEOLOGY CLIMATES THEORETICAL DATA |
description |
A nonlinear viscous-plastic (VP) rheology proposed by Hibler (1979) has been demonstrated to be the most suitable of the rheologies commonly used for modeling sea ice dynamics. However, the presence of a huge range of effective viscosities hinders numerical implementations of this model, particularly on high resolution grids or when the ice model is coupled to an ocean or atmosphere model. Hunke and Dukowicz (1997) have modified the VP model by including elastic waves as a numerical regularization in the case of zero strain rate. This modification (EVP) allows an efficient, fully explicit discretization that adapts well to parallel architectures. The authors present a comparison of EVP and VP dynamics model results from two 5-year simulations of Arctic sea ice, obtained with a high resolution sea ice model. The purpose of the comparison is to determine how differently the two dynamics models behave, and to decide whether the elastic-viscous-plastic model is preferable for high resolution climate simulations, considering its high efficiency in parallel computation. Results from the first year of this experiment (1990) are discussed in detail in Hunke and Zhang (1997). |
author |
Hunke, E.C. Zhang, Y. |
author_facet |
Hunke, E.C. Zhang, Y. |
author_sort |
Hunke, E.C. |
title |
Comparison of elastic-viscous-plastic and viscous-plastic dynamics models using a high resolution Arctic sea ice model |
title_short |
Comparison of elastic-viscous-plastic and viscous-plastic dynamics models using a high resolution Arctic sea ice model |
title_full |
Comparison of elastic-viscous-plastic and viscous-plastic dynamics models using a high resolution Arctic sea ice model |
title_fullStr |
Comparison of elastic-viscous-plastic and viscous-plastic dynamics models using a high resolution Arctic sea ice model |
title_full_unstemmed |
Comparison of elastic-viscous-plastic and viscous-plastic dynamics models using a high resolution Arctic sea ice model |
title_sort |
comparison of elastic-viscous-plastic and viscous-plastic dynamics models using a high resolution arctic sea ice model |
publishDate |
2009 |
url |
http://www.osti.gov/servlets/purl/563300 https://www.osti.gov/biblio/563300 https://doi.org/10.2172/563300 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Iceberg* Sea ice |
genre_facet |
Arctic Arctic Ocean Iceberg* Sea ice |
op_relation |
http://www.osti.gov/servlets/purl/563300 https://www.osti.gov/biblio/563300 https://doi.org/10.2172/563300 doi:10.2172/563300 |
op_doi |
https://doi.org/10.2172/563300 |
_version_ |
1772811945774153728 |