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 by the implementation of time stepping, the use of terrain-following...
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Language: | English |
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fthzgzmk:oai:publications.hereon.de:36878 2023-06-11T04:16:34+02:00 FESOM-C v.2: coastal dynamics on hybrid unstructured meshes Androsov, A. Fofonova, V. Kuznetsov, I. Danilov, S. Rakowsky, N. Harig, S. Brix, H. Wiltshire, K.H. 2019 https://publications.hereon.de/id/36878 https://publications.hzg.de/id/36878 https://doi.org/10.5194/gmd-12-1009-2019 en eng EGU - Copernicus Publication https://dx.doi.org/10.5194/gmd-12-1009-2019 urn:issn:1991-959X https://publications.hereon.de/id/36878 https://publications.hzg.de/id/36878 info:eu-repo/semantics/openAccess open_access oa_gold issn:1991-959X Androsov, A.; Fofonova, V.; Kuznetsov, I.; Danilov, S.; Rakowsky, N.; Harig, S.; Brix, H.; Wiltshire, K.H.: FESOM-C v.2: coastal dynamics on hybrid unstructured meshes. In: Geoscientific Model Development. Vol. 12 (2019) 3, 1009 - 1028. (DOI: /10.5194/gmd-12-1009-2019 ) info:eu-repo/semantics/article Zeitschrift Artikel 2019 fthzgzmk https://doi.org/10.5194/gmd-12-1009-2019 2023-05-28T23:24:49Z 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 by the implementation of time stepping, the use of terrain-following vertical coordinate and 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 differt 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 Hereon Publications (Helmholtz-Zentrum) Geoscientific Model Development 12 3 1009 1028 |
institution |
Open Polar |
collection |
Hereon Publications (Helmholtz-Zentrum) |
op_collection_id |
fthzgzmk |
language |
English |
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 by the implementation of time stepping, the use of terrain-following vertical coordinate and 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 differt 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 |
Androsov, A. Fofonova, V. Kuznetsov, I. Danilov, S. Rakowsky, N. Harig, S. Brix, H. Wiltshire, K.H. |
spellingShingle |
Androsov, A. Fofonova, V. Kuznetsov, I. Danilov, S. Rakowsky, N. Harig, S. Brix, H. Wiltshire, K.H. FESOM-C v.2: coastal dynamics on hybrid unstructured meshes |
author_facet |
Androsov, A. Fofonova, V. Kuznetsov, I. Danilov, S. Rakowsky, N. Harig, S. Brix, H. Wiltshire, K.H. |
author_sort |
Androsov, A. |
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 |
EGU - Copernicus Publication |
publishDate |
2019 |
url |
https://publications.hereon.de/id/36878 https://publications.hzg.de/id/36878 https://doi.org/10.5194/gmd-12-1009-2019 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
issn:1991-959X Androsov, A.; Fofonova, V.; Kuznetsov, I.; Danilov, S.; Rakowsky, N.; Harig, S.; Brix, H.; Wiltshire, K.H.: FESOM-C v.2: coastal dynamics on hybrid unstructured meshes. In: Geoscientific Model Development. Vol. 12 (2019) 3, 1009 - 1028. (DOI: /10.5194/gmd-12-1009-2019 ) |
op_relation |
https://dx.doi.org/10.5194/gmd-12-1009-2019 urn:issn:1991-959X https://publications.hereon.de/id/36878 https://publications.hzg.de/id/36878 |
op_rights |
info:eu-repo/semantics/openAccess open_access oa_gold |
op_doi |
https://doi.org/10.5194/gmd-12-1009-2019 |
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Geoscientific Model Development |
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1009 |
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1028 |
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