FESOM-C v.2: coastal dynamics on hybrid unstructured meshes
We describe FESOM-C, the coastal branch of the Finite-volumE Sea ice – Ocean Model (FESOM2), which shares with FESOM2 many numerical aspects, in particular its finite-volume cell-vertex discretization. Its dynamical core differs in the implementation of time stepping, the use of a terrain-following...
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ftdoajarticles:oai:doaj.org/article:4614ff5157f3413096a584aa133de56d 2023-05-15T18:18:19+02:00 FESOM-C v.2: coastal dynamics on hybrid unstructured meshes A. Androsov V. Fofonova I. Kuznetsov S. Danilov N. Rakowsky S. Harig H. Brix K. H. Wiltshire 2019-03-01T00:00:00Z https://doi.org/10.5194/gmd-12-1009-2019 https://doaj.org/article/4614ff5157f3413096a584aa133de56d EN eng Copernicus Publications https://www.geosci-model-dev.net/12/1009/2019/gmd-12-1009-2019.pdf https://doaj.org/toc/1991-959X https://doaj.org/toc/1991-9603 doi:10.5194/gmd-12-1009-2019 1991-959X 1991-9603 https://doaj.org/article/4614ff5157f3413096a584aa133de56d Geoscientific Model Development, Vol 12, Pp 1009-1028 (2019) Geology QE1-996.5 article 2019 ftdoajarticles https://doi.org/10.5194/gmd-12-1009-2019 2022-12-31T15:18:43Z We describe FESOM-C, the coastal branch of the Finite-volumE Sea ice – Ocean Model (FESOM2), which shares with FESOM2 many numerical aspects, in particular its finite-volume cell-vertex discretization. Its dynamical core differs in the implementation of time stepping, the use of a terrain-following vertical coordinate, and the formulation for hybrid meshes composed of triangles and quads. The first two distinctions were critical for coding FESOM-C as an independent branch. The hybrid mesh capability improves numerical efficiency, since quadrilateral cells have fewer edges than triangular cells. They do not suffer from spurious inertial modes of the triangular cell-vertex discretization and need less dissipation. The hybrid mesh capability allows one to use quasi-quadrilateral unstructured meshes, with triangular cells included only to join quadrilateral patches of different resolution or instead of strongly deformed quadrilateral cells. The description of the model numerical part is complemented by test cases illustrating the model performance. Article in Journal/Newspaper Sea ice Directory of Open Access Journals: DOAJ Articles Geoscientific Model Development 12 3 1009 1028 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geology QE1-996.5 |
spellingShingle |
Geology QE1-996.5 A. Androsov V. Fofonova I. Kuznetsov S. Danilov N. Rakowsky S. Harig H. Brix K. H. Wiltshire FESOM-C v.2: coastal dynamics on hybrid unstructured meshes |
topic_facet |
Geology QE1-996.5 |
description |
We describe FESOM-C, the coastal branch of the Finite-volumE Sea ice – Ocean Model (FESOM2), which shares with FESOM2 many numerical aspects, in particular its finite-volume cell-vertex discretization. Its dynamical core differs in the implementation of time stepping, the use of a terrain-following vertical coordinate, and the formulation for hybrid meshes composed of triangles and quads. The first two distinctions were critical for coding FESOM-C as an independent branch. The hybrid mesh capability improves numerical efficiency, since quadrilateral cells have fewer edges than triangular cells. They do not suffer from spurious inertial modes of the triangular cell-vertex discretization and need less dissipation. The hybrid mesh capability allows one to use quasi-quadrilateral unstructured meshes, with triangular cells included only to join quadrilateral patches of different resolution or instead of strongly deformed quadrilateral cells. The description of the model numerical part is complemented by test cases illustrating the model performance. |
format |
Article in Journal/Newspaper |
author |
A. Androsov V. Fofonova I. Kuznetsov S. Danilov N. Rakowsky S. Harig H. Brix K. H. Wiltshire |
author_facet |
A. Androsov V. Fofonova I. Kuznetsov S. Danilov N. Rakowsky S. Harig H. Brix K. H. Wiltshire |
author_sort |
A. Androsov |
title |
FESOM-C v.2: coastal dynamics on hybrid unstructured meshes |
title_short |
FESOM-C v.2: coastal dynamics on hybrid unstructured meshes |
title_full |
FESOM-C v.2: coastal dynamics on hybrid unstructured meshes |
title_fullStr |
FESOM-C v.2: coastal dynamics on hybrid unstructured meshes |
title_full_unstemmed |
FESOM-C v.2: coastal dynamics on hybrid unstructured meshes |
title_sort |
fesom-c v.2: coastal dynamics on hybrid unstructured meshes |
publisher |
Copernicus Publications |
publishDate |
2019 |
url |
https://doi.org/10.5194/gmd-12-1009-2019 https://doaj.org/article/4614ff5157f3413096a584aa133de56d |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Geoscientific Model Development, Vol 12, Pp 1009-1028 (2019) |
op_relation |
https://www.geosci-model-dev.net/12/1009/2019/gmd-12-1009-2019.pdf https://doaj.org/toc/1991-959X https://doaj.org/toc/1991-9603 doi:10.5194/gmd-12-1009-2019 1991-959X 1991-9603 https://doaj.org/article/4614ff5157f3413096a584aa133de56d |
op_doi |
https://doi.org/10.5194/gmd-12-1009-2019 |
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Geoscientific Model Development |
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12 |
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3 |
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1009 |
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1028 |
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