Parameterization for subgrid-scale motion of ice-shelf calving fronts
A parameterization for the motion of ice-shelf fronts on a Cartesian grid in finite-difference land-ice models is presented. The scheme prevents artificial thinning of the ice shelf at its edge, which occurs due to the finite resolution of the model. The intuitive numerical implementation diminishes...
Published in: | The Cryosphere |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Copernicus Publications
2011
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Online Access: | https://doi.org/10.5194/tc-5-35-2011 http://www.the-cryosphere.net/5/35/2011/tc-5-35-2011.pdf https://doaj.org/article/263116a6550d41b0a955eb4da0e7aee2 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:263116a6550d41b0a955eb4da0e7aee2 2023-05-15T16:40:14+02:00 Parameterization for subgrid-scale motion of ice-shelf calving fronts T. Albrecht M. Martin M. Haseloff R. Winkelmann A. Levermann 2011-01-01 https://doi.org/10.5194/tc-5-35-2011 http://www.the-cryosphere.net/5/35/2011/tc-5-35-2011.pdf https://doaj.org/article/263116a6550d41b0a955eb4da0e7aee2 en eng Copernicus Publications doi:10.5194/tc-5-35-2011 1994-0416 1994-0424 http://www.the-cryosphere.net/5/35/2011/tc-5-35-2011.pdf https://doaj.org/article/263116a6550d41b0a955eb4da0e7aee2 undefined The Cryosphere, Vol 5, Iss 1, Pp 35-44 (2011) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2011 fttriple https://doi.org/10.5194/tc-5-35-2011 2023-01-22T17:32:56Z A parameterization for the motion of ice-shelf fronts on a Cartesian grid in finite-difference land-ice models is presented. The scheme prevents artificial thinning of the ice shelf at its edge, which occurs due to the finite resolution of the model. The intuitive numerical implementation diminishes numerical dispersion at the ice front and enables the application of physical boundary conditions to improve the calculation of stress and velocity fields throughout the ice-sheet-shelf system. Numerical properties of this subgrid modification are assessed in the Potsdam Parallel Ice Sheet Model (PISM-PIK) for different geometries in one and two horizontal dimensions and are verified against an analytical solution in a flow-line setup. Article in Journal/Newspaper Ice Sheet Ice Shelf The Cryosphere Unknown Pik ENVELOPE(67.200,67.200,-70.783,-70.783) The Cryosphere 5 1 35 44 |
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Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
geo envir |
spellingShingle |
geo envir T. Albrecht M. Martin M. Haseloff R. Winkelmann A. Levermann Parameterization for subgrid-scale motion of ice-shelf calving fronts |
topic_facet |
geo envir |
description |
A parameterization for the motion of ice-shelf fronts on a Cartesian grid in finite-difference land-ice models is presented. The scheme prevents artificial thinning of the ice shelf at its edge, which occurs due to the finite resolution of the model. The intuitive numerical implementation diminishes numerical dispersion at the ice front and enables the application of physical boundary conditions to improve the calculation of stress and velocity fields throughout the ice-sheet-shelf system. Numerical properties of this subgrid modification are assessed in the Potsdam Parallel Ice Sheet Model (PISM-PIK) for different geometries in one and two horizontal dimensions and are verified against an analytical solution in a flow-line setup. |
format |
Article in Journal/Newspaper |
author |
T. Albrecht M. Martin M. Haseloff R. Winkelmann A. Levermann |
author_facet |
T. Albrecht M. Martin M. Haseloff R. Winkelmann A. Levermann |
author_sort |
T. Albrecht |
title |
Parameterization for subgrid-scale motion of ice-shelf calving fronts |
title_short |
Parameterization for subgrid-scale motion of ice-shelf calving fronts |
title_full |
Parameterization for subgrid-scale motion of ice-shelf calving fronts |
title_fullStr |
Parameterization for subgrid-scale motion of ice-shelf calving fronts |
title_full_unstemmed |
Parameterization for subgrid-scale motion of ice-shelf calving fronts |
title_sort |
parameterization for subgrid-scale motion of ice-shelf calving fronts |
publisher |
Copernicus Publications |
publishDate |
2011 |
url |
https://doi.org/10.5194/tc-5-35-2011 http://www.the-cryosphere.net/5/35/2011/tc-5-35-2011.pdf https://doaj.org/article/263116a6550d41b0a955eb4da0e7aee2 |
long_lat |
ENVELOPE(67.200,67.200,-70.783,-70.783) |
geographic |
Pik |
geographic_facet |
Pik |
genre |
Ice Sheet Ice Shelf The Cryosphere |
genre_facet |
Ice Sheet Ice Shelf The Cryosphere |
op_source |
The Cryosphere, Vol 5, Iss 1, Pp 35-44 (2011) |
op_relation |
doi:10.5194/tc-5-35-2011 1994-0416 1994-0424 http://www.the-cryosphere.net/5/35/2011/tc-5-35-2011.pdf https://doaj.org/article/263116a6550d41b0a955eb4da0e7aee2 |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/tc-5-35-2011 |
container_title |
The Cryosphere |
container_volume |
5 |
container_issue |
1 |
container_start_page |
35 |
op_container_end_page |
44 |
_version_ |
1766030617548423168 |