Coupling ice flow models of varying orders of complexity with the Tiling method
Ice flow numerical models are essential for predicting the evolution of ice sheets in a warming climate. Recent research emphasizes the need for higher-order and even full-Stokes flow models, instead of the traditional shallow-ice approximation, whose assumptions are not valid in certain critical ar...
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Online Access: | https://escholarship.org/uc/item/7m49j39s https://escholarship.org/content/qt7m49j39s/qt7m49j39s.pdf https://doi.org/10.3189/2012jog11j195 |
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ftcdlib:oai:escholarship.org:ark:/13030/qt7m49j39s 2024-09-15T18:15:40+00:00 Coupling ice flow models of varying orders of complexity with the Tiling method Seroussi, Helene Dhia, Hachmi Ben Morlighem, Mathieu Larour, Eric Rignot, Eric Aubry, Denis 776 - 786 2012-01-01 application/pdf https://escholarship.org/uc/item/7m49j39s https://escholarship.org/content/qt7m49j39s/qt7m49j39s.pdf https://doi.org/10.3189/2012jog11j195 unknown eScholarship, University of California qt7m49j39s https://escholarship.org/uc/item/7m49j39s https://escholarship.org/content/qt7m49j39s/qt7m49j39s.pdf doi:10.3189/2012jog11j195 CC-BY Journal of Glaciology, vol 58, iss 210 Climate Action Physical Geography and Environmental Geoscience Meteorology & Atmospheric Sciences article 2012 ftcdlib https://doi.org/10.3189/2012jog11j195 2024-06-28T06:28:19Z Ice flow numerical models are essential for predicting the evolution of ice sheets in a warming climate. Recent research emphasizes the need for higher-order and even full-Stokes flow models, instead of the traditional shallow-ice approximation, whose assumptions are not valid in certain critical areas. These higher-order models are, however, computationally intensive and difficult to use at the continental scale. Here we present a new technique, the Tiling method, to couple ice flow models of varying orders of complexity. The goal of the method is to limit the spatial extent of where higherorder models are applied to reduce the computational cost, while maintaining the model precision. We apply this method on synthetic geometries to demonstrate its practical use. We first use a geometry for which all models yield the same results to check the consistency of the method. Then we apply our method to a geometry for which a full-Stokes model is required in the vicinity of the ice front. Our results show that the hybrid models present significant improvements over mono-model approaches and reduce computational times. Article in Journal/Newspaper Journal of Glaciology University of California: eScholarship Journal of Glaciology 58 210 776 786 |
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Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Climate Action Physical Geography and Environmental Geoscience Meteorology & Atmospheric Sciences |
spellingShingle |
Climate Action Physical Geography and Environmental Geoscience Meteorology & Atmospheric Sciences Seroussi, Helene Dhia, Hachmi Ben Morlighem, Mathieu Larour, Eric Rignot, Eric Aubry, Denis Coupling ice flow models of varying orders of complexity with the Tiling method |
topic_facet |
Climate Action Physical Geography and Environmental Geoscience Meteorology & Atmospheric Sciences |
description |
Ice flow numerical models are essential for predicting the evolution of ice sheets in a warming climate. Recent research emphasizes the need for higher-order and even full-Stokes flow models, instead of the traditional shallow-ice approximation, whose assumptions are not valid in certain critical areas. These higher-order models are, however, computationally intensive and difficult to use at the continental scale. Here we present a new technique, the Tiling method, to couple ice flow models of varying orders of complexity. The goal of the method is to limit the spatial extent of where higherorder models are applied to reduce the computational cost, while maintaining the model precision. We apply this method on synthetic geometries to demonstrate its practical use. We first use a geometry for which all models yield the same results to check the consistency of the method. Then we apply our method to a geometry for which a full-Stokes model is required in the vicinity of the ice front. Our results show that the hybrid models present significant improvements over mono-model approaches and reduce computational times. |
format |
Article in Journal/Newspaper |
author |
Seroussi, Helene Dhia, Hachmi Ben Morlighem, Mathieu Larour, Eric Rignot, Eric Aubry, Denis |
author_facet |
Seroussi, Helene Dhia, Hachmi Ben Morlighem, Mathieu Larour, Eric Rignot, Eric Aubry, Denis |
author_sort |
Seroussi, Helene |
title |
Coupling ice flow models of varying orders of complexity with the Tiling method |
title_short |
Coupling ice flow models of varying orders of complexity with the Tiling method |
title_full |
Coupling ice flow models of varying orders of complexity with the Tiling method |
title_fullStr |
Coupling ice flow models of varying orders of complexity with the Tiling method |
title_full_unstemmed |
Coupling ice flow models of varying orders of complexity with the Tiling method |
title_sort |
coupling ice flow models of varying orders of complexity with the tiling method |
publisher |
eScholarship, University of California |
publishDate |
2012 |
url |
https://escholarship.org/uc/item/7m49j39s https://escholarship.org/content/qt7m49j39s/qt7m49j39s.pdf https://doi.org/10.3189/2012jog11j195 |
op_coverage |
776 - 786 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology, vol 58, iss 210 |
op_relation |
qt7m49j39s https://escholarship.org/uc/item/7m49j39s https://escholarship.org/content/qt7m49j39s/qt7m49j39s.pdf doi:10.3189/2012jog11j195 |
op_rights |
CC-BY |
op_doi |
https://doi.org/10.3189/2012jog11j195 |
container_title |
Journal of Glaciology |
container_volume |
58 |
container_issue |
210 |
container_start_page |
776 |
op_container_end_page |
786 |
_version_ |
1810453599517409280 |