Performance analysis of high-resolution ice sheet simulations ...
Numerical ice sheet models compute evolving ice geometry and velocity fields using various stress-balance approximations and boundary conditions. At high spatial resolution, with horizontal mesh/grid resolutions of a few kilometers or smaller, these models usually require time steps shorter than cli...
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Online Access: | https://dx.doi.org/10.48550/arxiv.2206.14352 https://arxiv.org/abs/2206.14352 |
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ftdatacite:10.48550/arxiv.2206.14352 2023-10-01T03:56:41+02:00 Performance analysis of high-resolution ice sheet simulations ... Bueler, Ed 2022 https://dx.doi.org/10.48550/arxiv.2206.14352 https://arxiv.org/abs/2206.14352 unknown arXiv https://dx.doi.org/10.1017/jog.2022.113 arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Computational Physics physics.comp-ph FOS Physical sciences 76A05, 86A40, 65M50, 65N55 ScholarlyArticle Article article-journal Text 2022 ftdatacite https://doi.org/10.48550/arxiv.2206.1435210.1017/jog.2022.113 2023-09-04T14:01:24Z Numerical ice sheet models compute evolving ice geometry and velocity fields using various stress-balance approximations and boundary conditions. At high spatial resolution, with horizontal mesh/grid resolutions of a few kilometers or smaller, these models usually require time steps shorter than climate-coupling time scales because they update ice thickness after each velocity solution. High-resolution performance is degraded by the stability restrictions of such explicit time-stepping. This short note, which considers the shallow ice approximation and Stokes models as stress-balance end members, attempts to clarify numerical model performance by quantifying simulation cost per model year in terms of mesh resolution and the number of degrees of freedom. The performance of current-generation explicit time-stepping models is assessed, and then compared to the prospective performance of implicit schemes. The main result, Table 2, highlights the key roles played by the algorithmic scaling of stress-balance and ... : 6 pages, no figures ... Text Ice Sheet DataCite Metadata Store (German National Library of Science and Technology) |
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DataCite Metadata Store (German National Library of Science and Technology) |
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Computational Physics physics.comp-ph FOS Physical sciences 76A05, 86A40, 65M50, 65N55 |
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Computational Physics physics.comp-ph FOS Physical sciences 76A05, 86A40, 65M50, 65N55 Bueler, Ed Performance analysis of high-resolution ice sheet simulations ... |
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Computational Physics physics.comp-ph FOS Physical sciences 76A05, 86A40, 65M50, 65N55 |
description |
Numerical ice sheet models compute evolving ice geometry and velocity fields using various stress-balance approximations and boundary conditions. At high spatial resolution, with horizontal mesh/grid resolutions of a few kilometers or smaller, these models usually require time steps shorter than climate-coupling time scales because they update ice thickness after each velocity solution. High-resolution performance is degraded by the stability restrictions of such explicit time-stepping. This short note, which considers the shallow ice approximation and Stokes models as stress-balance end members, attempts to clarify numerical model performance by quantifying simulation cost per model year in terms of mesh resolution and the number of degrees of freedom. The performance of current-generation explicit time-stepping models is assessed, and then compared to the prospective performance of implicit schemes. The main result, Table 2, highlights the key roles played by the algorithmic scaling of stress-balance and ... : 6 pages, no figures ... |
format |
Text |
author |
Bueler, Ed |
author_facet |
Bueler, Ed |
author_sort |
Bueler, Ed |
title |
Performance analysis of high-resolution ice sheet simulations ... |
title_short |
Performance analysis of high-resolution ice sheet simulations ... |
title_full |
Performance analysis of high-resolution ice sheet simulations ... |
title_fullStr |
Performance analysis of high-resolution ice sheet simulations ... |
title_full_unstemmed |
Performance analysis of high-resolution ice sheet simulations ... |
title_sort |
performance analysis of high-resolution ice sheet simulations ... |
publisher |
arXiv |
publishDate |
2022 |
url |
https://dx.doi.org/10.48550/arxiv.2206.14352 https://arxiv.org/abs/2206.14352 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_relation |
https://dx.doi.org/10.1017/jog.2022.113 |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.2206.1435210.1017/jog.2022.113 |
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1778526742534684672 |