A finite element ocean model: principles and evaluation
We describe a three-dimensional (3D) finite-element oceanmodel designed for investigating the large-scale oceancirculation on time scales from years to decades. The modelsolves the primitive equations in the dynamical part andthe advection-diffusion equations for temperature andsalinity in the therm...
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ftawi:oai:epic.awi.de:5778 2023-09-05T13:21:31+02:00 A finite element ocean model: principles and evaluation Danilov, Sergey Kivman, G. Schröter, Jens 2004 application/pdf https://epic.awi.de/id/eprint/5778/ https://epic.awi.de/id/eprint/5778/1/Ser2002a.pdf https://hdl.handle.net/10013/epic.16341 https://hdl.handle.net/10013/epic.16341.d001 unknown https://epic.awi.de/id/eprint/5778/1/Ser2002a.pdf https://hdl.handle.net/10013/epic.16341.d001 Danilov, S. orcid:0000-0001-8098-182X , Kivman, G. and Schröter, J. orcid:0000-0002-9240-5798 (2004) A finite element ocean model: principles and evaluation , Ocean Modelling, 6 , pp. 125-150 . hdl:10013/epic.16341 EPIC3Ocean Modelling, 6, pp. 125-150 Article isiRev 2004 ftawi 2023-08-22T19:45:41Z We describe a three-dimensional (3D) finite-element oceanmodel designed for investigating the large-scale oceancirculation on time scales from years to decades. The modelsolves the primitive equations in the dynamical part andthe advection-diffusion equations for temperature andsalinity in the thermodynamical part. The time-stepping isimplicit. The 3D mesh is composed of tetrahedra and hasa variable resolution. It is based on an unstructuredtwo-dimensional surface mesh and is stratified in thevertical direction. The model uses linear functions forhorizontal velocity and tracers on tetrahedra, and forsurface elevation on surface triangles. The verticalvelocity field is element-wise constant. An importantingredient of the model is the Galerkin least-squaresstabilization used to minimize effects of unresolvedboundary layers and make the matrices to be inverted intime-stepping better conditioned. The model performance wastested in a 16-year simulation of the North Atlantic usinga mesh covering the area between 7 N and 80 N andproviding variable horizontal resolution from 1/3 to1.5 degrees. Article in Journal/Newspaper North Atlantic Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
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description |
We describe a three-dimensional (3D) finite-element oceanmodel designed for investigating the large-scale oceancirculation on time scales from years to decades. The modelsolves the primitive equations in the dynamical part andthe advection-diffusion equations for temperature andsalinity in the thermodynamical part. The time-stepping isimplicit. The 3D mesh is composed of tetrahedra and hasa variable resolution. It is based on an unstructuredtwo-dimensional surface mesh and is stratified in thevertical direction. The model uses linear functions forhorizontal velocity and tracers on tetrahedra, and forsurface elevation on surface triangles. The verticalvelocity field is element-wise constant. An importantingredient of the model is the Galerkin least-squaresstabilization used to minimize effects of unresolvedboundary layers and make the matrices to be inverted intime-stepping better conditioned. The model performance wastested in a 16-year simulation of the North Atlantic usinga mesh covering the area between 7 N and 80 N andproviding variable horizontal resolution from 1/3 to1.5 degrees. |
format |
Article in Journal/Newspaper |
author |
Danilov, Sergey Kivman, G. Schröter, Jens |
spellingShingle |
Danilov, Sergey Kivman, G. Schröter, Jens A finite element ocean model: principles and evaluation |
author_facet |
Danilov, Sergey Kivman, G. Schröter, Jens |
author_sort |
Danilov, Sergey |
title |
A finite element ocean model: principles and evaluation |
title_short |
A finite element ocean model: principles and evaluation |
title_full |
A finite element ocean model: principles and evaluation |
title_fullStr |
A finite element ocean model: principles and evaluation |
title_full_unstemmed |
A finite element ocean model: principles and evaluation |
title_sort |
finite element ocean model: principles and evaluation |
publishDate |
2004 |
url |
https://epic.awi.de/id/eprint/5778/ https://epic.awi.de/id/eprint/5778/1/Ser2002a.pdf https://hdl.handle.net/10013/epic.16341 https://hdl.handle.net/10013/epic.16341.d001 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
EPIC3Ocean Modelling, 6, pp. 125-150 |
op_relation |
https://epic.awi.de/id/eprint/5778/1/Ser2002a.pdf https://hdl.handle.net/10013/epic.16341.d001 Danilov, S. orcid:0000-0001-8098-182X , Kivman, G. and Schröter, J. orcid:0000-0002-9240-5798 (2004) A finite element ocean model: principles and evaluation , Ocean Modelling, 6 , pp. 125-150 . hdl:10013/epic.16341 |
_version_ |
1776202109557932032 |