Viscous-Plastic sea-ice solutions with Elastic-Viscous-Plastic sea-ice solvers
Most dynamic sea ice models for climate type simulations are based on the viscous-plastic (VP) rheology. The resulting stiff system of partial differential equations for ice velocity is either solved implicitly at great computational cost, or explicitly with added pseudo-elasticity (elastic- viscous...
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ftawi:oai:epic.awi.de:42223 2023-05-15T15:04:09+02:00 Viscous-Plastic sea-ice solutions with Elastic-Viscous-Plastic sea-ice solvers Kimmritz, Madlen Losch, Martin Danilov, Sergey 2016-11 application/pdf https://epic.awi.de/id/eprint/42223/ https://epic.awi.de/id/eprint/42223/1/FAMOS_Martin_Losch_A-19.pdf https://hdl.handle.net/10013/epic.48948 https://hdl.handle.net/10013/epic.48948.d001 unknown https://epic.awi.de/id/eprint/42223/1/FAMOS_Martin_Losch_A-19.pdf https://hdl.handle.net/10013/epic.48948.d001 Kimmritz, M. orcid:0000-0002-6536-0221 , Losch, M. orcid:0000-0002-3824-5244 and Danilov, S. orcid:0000-0001-8098-182X (2016) Viscous-Plastic sea-ice solutions with Elastic-Viscous-Plastic sea-ice solvers , FAMOS workshop, Woods Hole Oceanographic Institution, MA, USA, 2 November 2016 - 4 November 2016 . hdl:10013/epic.48948 EPIC3FAMOS workshop, Woods Hole Oceanographic Institution, MA, USA, 2016-11-02-2016-11-04 Conference notRev 2016 ftawi 2021-12-24T15:42:05Z Most dynamic sea ice models for climate type simulations are based on the viscous-plastic (VP) rheology. The resulting stiff system of partial differential equations for ice velocity is either solved implicitly at great computational cost, or explicitly with added pseudo-elasticity (elastic- viscous-plastic, EVP). The more popular, because apparently faster EVP scheme has been found to create noisy solutions that do not converge to the VP rheology. A slight modification re- interprets EVP as a pseudotime VP solver and thus salvages the convergence to VP. In addition, the modification regularizes the EVP solutions so that they can be used in climate simulations at relatively low cost compared to efficient implicit methods. We present comparisons of two variants of the new EVP scheme with converged VP solution in Arctic. At coarse resolution (grid cell width of about 27km), the EVP solutions are very similar to the VP solutions. At higher resolution (4.5km), convergence of all schemes is more difficult to achieve and the solutions are obviously different. Conference Object Arctic Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
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description |
Most dynamic sea ice models for climate type simulations are based on the viscous-plastic (VP) rheology. The resulting stiff system of partial differential equations for ice velocity is either solved implicitly at great computational cost, or explicitly with added pseudo-elasticity (elastic- viscous-plastic, EVP). The more popular, because apparently faster EVP scheme has been found to create noisy solutions that do not converge to the VP rheology. A slight modification re- interprets EVP as a pseudotime VP solver and thus salvages the convergence to VP. In addition, the modification regularizes the EVP solutions so that they can be used in climate simulations at relatively low cost compared to efficient implicit methods. We present comparisons of two variants of the new EVP scheme with converged VP solution in Arctic. At coarse resolution (grid cell width of about 27km), the EVP solutions are very similar to the VP solutions. At higher resolution (4.5km), convergence of all schemes is more difficult to achieve and the solutions are obviously different. |
format |
Conference Object |
author |
Kimmritz, Madlen Losch, Martin Danilov, Sergey |
spellingShingle |
Kimmritz, Madlen Losch, Martin Danilov, Sergey Viscous-Plastic sea-ice solutions with Elastic-Viscous-Plastic sea-ice solvers |
author_facet |
Kimmritz, Madlen Losch, Martin Danilov, Sergey |
author_sort |
Kimmritz, Madlen |
title |
Viscous-Plastic sea-ice solutions with Elastic-Viscous-Plastic sea-ice solvers |
title_short |
Viscous-Plastic sea-ice solutions with Elastic-Viscous-Plastic sea-ice solvers |
title_full |
Viscous-Plastic sea-ice solutions with Elastic-Viscous-Plastic sea-ice solvers |
title_fullStr |
Viscous-Plastic sea-ice solutions with Elastic-Viscous-Plastic sea-ice solvers |
title_full_unstemmed |
Viscous-Plastic sea-ice solutions with Elastic-Viscous-Plastic sea-ice solvers |
title_sort |
viscous-plastic sea-ice solutions with elastic-viscous-plastic sea-ice solvers |
publishDate |
2016 |
url |
https://epic.awi.de/id/eprint/42223/ https://epic.awi.de/id/eprint/42223/1/FAMOS_Martin_Losch_A-19.pdf https://hdl.handle.net/10013/epic.48948 https://hdl.handle.net/10013/epic.48948.d001 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
EPIC3FAMOS workshop, Woods Hole Oceanographic Institution, MA, USA, 2016-11-02-2016-11-04 |
op_relation |
https://epic.awi.de/id/eprint/42223/1/FAMOS_Martin_Losch_A-19.pdf https://hdl.handle.net/10013/epic.48948.d001 Kimmritz, M. orcid:0000-0002-6536-0221 , Losch, M. orcid:0000-0002-3824-5244 and Danilov, S. orcid:0000-0001-8098-182X (2016) Viscous-Plastic sea-ice solutions with Elastic-Viscous-Plastic sea-ice solvers , FAMOS workshop, Woods Hole Oceanographic Institution, MA, USA, 2 November 2016 - 4 November 2016 . hdl:10013/epic.48948 |
_version_ |
1766335967800590336 |