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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ftawi:oai:epic.awi.de:49303 2023-05-15T18:18:15+02:00 FESOM-C v.2: coastal dynamics on hybrid unstructured meshes Androsov, Alexey Fofonova, Vera Kuznetsov, Ivan Danilov, Sergey Rakowsky, Natalja Harig, Sven Brix, Holger Wiltshire, Karen Helen 2019-03-21 application/pdf https://epic.awi.de/id/eprint/49303/ https://epic.awi.de/id/eprint/49303/1/gmd-12-1009-2019.pdf https://hdl.handle.net/10013/epic.f44585e8-43e5-4958-ad89-d94d212216be https://hdl.handle.net/ unknown https://epic.awi.de/id/eprint/49303/1/gmd-12-1009-2019.pdf https://hdl.handle.net/ Androsov, A. , Fofonova, V. orcid:0000-0002-5956-1844 , Kuznetsov, I. orcid:0000-0001-5910-8081 , Danilov, S. orcid:0000-0001-8098-182X , Rakowsky, N. orcid:0000-0001-6101-0526 , Harig, S. orcid:0000-0001-6948-7409 , Brix, H. and Wiltshire, K. H. orcid:0000-0002-7148-0529 (2019) FESOM-C v.2: coastal dynamics on hybrid unstructured meshes , Geosci. Model Dev, 12 , pp. 1009-1028 . doi:10.5194/gmd-12-1009-2019 <https://doi.org/10.5194/gmd-12-1009-2019> , hdl:10013/epic.f44585e8-43e5-4958-ad89-d94d212216be EPIC3Geosci. Model Dev, 12, pp. 1009-1028 Article isiRev 2019 ftawi https://doi.org/10.5194/gmd-12-1009-2019 2021-12-24T15:44:36Z 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 Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Geoscientific Model Development 12 3 1009 1028 |
institution |
Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
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 |
Androsov, Alexey Fofonova, Vera Kuznetsov, Ivan Danilov, Sergey Rakowsky, Natalja Harig, Sven Brix, Holger Wiltshire, Karen Helen |
spellingShingle |
Androsov, Alexey Fofonova, Vera Kuznetsov, Ivan Danilov, Sergey Rakowsky, Natalja Harig, Sven Brix, Holger Wiltshire, Karen Helen FESOM-C v.2: coastal dynamics on hybrid unstructured meshes |
author_facet |
Androsov, Alexey Fofonova, Vera Kuznetsov, Ivan Danilov, Sergey Rakowsky, Natalja Harig, Sven Brix, Holger Wiltshire, Karen Helen |
author_sort |
Androsov, Alexey |
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 |
publishDate |
2019 |
url |
https://epic.awi.de/id/eprint/49303/ https://epic.awi.de/id/eprint/49303/1/gmd-12-1009-2019.pdf https://hdl.handle.net/10013/epic.f44585e8-43e5-4958-ad89-d94d212216be https://hdl.handle.net/ |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
EPIC3Geosci. Model Dev, 12, pp. 1009-1028 |
op_relation |
https://epic.awi.de/id/eprint/49303/1/gmd-12-1009-2019.pdf https://hdl.handle.net/ Androsov, A. , Fofonova, V. orcid:0000-0002-5956-1844 , Kuznetsov, I. orcid:0000-0001-5910-8081 , Danilov, S. orcid:0000-0001-8098-182X , Rakowsky, N. orcid:0000-0001-6101-0526 , Harig, S. orcid:0000-0001-6948-7409 , Brix, H. and Wiltshire, K. H. orcid:0000-0002-7148-0529 (2019) FESOM-C v.2: coastal dynamics on hybrid unstructured meshes , Geosci. Model Dev, 12 , pp. 1009-1028 . doi:10.5194/gmd-12-1009-2019 <https://doi.org/10.5194/gmd-12-1009-2019> , hdl:10013/epic.f44585e8-43e5-4958-ad89-d94d212216be |
op_doi |
https://doi.org/10.5194/gmd-12-1009-2019 |
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Geoscientific Model Development |
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