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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Language: | English |
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2011
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ftubpotsdam:oai:kobv.de-opus4-uni-potsdam:37164 2024-05-19T07:42:07+00:00 Parameterization for subgrid-scale motion of ice-shelf calving fronts Albrecht, Tanja Martin, M. Haseloff, M. Winkelmann, Ricarda (Prof. Dr.) Levermann, Anders (Prof. Dr.) 2011 https://publishup.uni-potsdam.de/frontdoor/index/index/docId/37164 https://doi.org/10.5194/tc-5-35-2011 eng eng https://publishup.uni-potsdam.de/frontdoor/index/index/docId/37164 https://doi.org/10.5194/tc-5-35-2011 info:eu-repo/semantics/closedAccess Institut für Geowissenschaften article doc-type:article 2011 ftubpotsdam https://doi.org/10.5194/tc-5-35-2011 2024-04-23T23:32:43Z 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 University of Potsdam: publish.UP The Cryosphere 5 1 35 44 |
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Open Polar |
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University of Potsdam: publish.UP |
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ftubpotsdam |
language |
English |
topic |
Institut für Geowissenschaften |
spellingShingle |
Institut für Geowissenschaften Albrecht, Tanja Martin, M. Haseloff, M. Winkelmann, Ricarda (Prof. Dr.) Levermann, Anders (Prof. Dr.) Parameterization for subgrid-scale motion of ice-shelf calving fronts |
topic_facet |
Institut für Geowissenschaften |
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 |
Albrecht, Tanja Martin, M. Haseloff, M. Winkelmann, Ricarda (Prof. Dr.) Levermann, Anders (Prof. Dr.) |
author_facet |
Albrecht, Tanja Martin, M. Haseloff, M. Winkelmann, Ricarda (Prof. Dr.) Levermann, Anders (Prof. Dr.) |
author_sort |
Albrecht, Tanja |
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 |
publishDate |
2011 |
url |
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/37164 https://doi.org/10.5194/tc-5-35-2011 |
genre |
Ice Sheet Ice Shelf |
genre_facet |
Ice Sheet Ice Shelf |
op_relation |
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/37164 https://doi.org/10.5194/tc-5-35-2011 |
op_rights |
info:eu-repo/semantics/closedAccess |
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_ |
1799481747481559040 |