A nonhydrostatic formulation for MPAS-Ocean
The Model for Prediction Across Scales-Ocean (MPAS-Ocean) is an open-source, global ocean model and is one component of a family of climate models within the MPAS framework, including atmosphere, sea-ice, and land-ice models. In this work, a new formulation for the ocean model is presented that solv...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00071982 2024-04-14T08:19:13+00:00 A nonhydrostatic formulation for MPAS-Ocean Calandrini, Sara Engwirda, Darren Van Roekel, Luke 2024-02 electronic https://doi.org/10.5194/egusphere-2024-472 https://noa.gwlb.de/receive/cop_mods_00071982 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00070219/egusphere-2024-472.pdf https://egusphere.copernicus.org/preprints/2024/egusphere-2024-472/egusphere-2024-472.pdf eng eng Copernicus Publications https://doi.org/10.5194/egusphere-2024-472 https://noa.gwlb.de/receive/cop_mods_00071982 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00070219/egusphere-2024-472.pdf https://egusphere.copernicus.org/preprints/2024/egusphere-2024-472/egusphere-2024-472.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2024 ftnonlinearchiv https://doi.org/10.5194/egusphere-2024-472 2024-03-19T12:18:16Z The Model for Prediction Across Scales-Ocean (MPAS-Ocean) is an open-source, global ocean model and is one component of a family of climate models within the MPAS framework, including atmosphere, sea-ice, and land-ice models. In this work, a new formulation for the ocean model is presented that solves the nonhydrostatic, incompressible Boussinesq equations on an unstructured, staggered, z-level grid. The introduction of this nonhydrostatic capability is necessary for the resolution of internal wave dynamics and large eddy simulations. Compared to the standard, hydrostatic formulation, a nonhydrostatic pressure solver and a vertical momentum equation are added, where the PETSc (Portable Extensible Toolkit for Scientific Computation) library is used for the inversion of a large sparse system for the nonhydrostatic pressure. Numerical results on a stratified seiche, internal solitary wave, overflow and lock-exchange test cases are presented, and the parallel efficiency of the code is evaluated using up to 128 processors. Article in Journal/Newspaper Sea ice Niedersächsisches Online-Archiv NOA |
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Open Polar |
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Niedersächsisches Online-Archiv NOA |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Calandrini, Sara Engwirda, Darren Van Roekel, Luke A nonhydrostatic formulation for MPAS-Ocean |
topic_facet |
article Verlagsveröffentlichung |
description |
The Model for Prediction Across Scales-Ocean (MPAS-Ocean) is an open-source, global ocean model and is one component of a family of climate models within the MPAS framework, including atmosphere, sea-ice, and land-ice models. In this work, a new formulation for the ocean model is presented that solves the nonhydrostatic, incompressible Boussinesq equations on an unstructured, staggered, z-level grid. The introduction of this nonhydrostatic capability is necessary for the resolution of internal wave dynamics and large eddy simulations. Compared to the standard, hydrostatic formulation, a nonhydrostatic pressure solver and a vertical momentum equation are added, where the PETSc (Portable Extensible Toolkit for Scientific Computation) library is used for the inversion of a large sparse system for the nonhydrostatic pressure. Numerical results on a stratified seiche, internal solitary wave, overflow and lock-exchange test cases are presented, and the parallel efficiency of the code is evaluated using up to 128 processors. |
format |
Article in Journal/Newspaper |
author |
Calandrini, Sara Engwirda, Darren Van Roekel, Luke |
author_facet |
Calandrini, Sara Engwirda, Darren Van Roekel, Luke |
author_sort |
Calandrini, Sara |
title |
A nonhydrostatic formulation for MPAS-Ocean |
title_short |
A nonhydrostatic formulation for MPAS-Ocean |
title_full |
A nonhydrostatic formulation for MPAS-Ocean |
title_fullStr |
A nonhydrostatic formulation for MPAS-Ocean |
title_full_unstemmed |
A nonhydrostatic formulation for MPAS-Ocean |
title_sort |
nonhydrostatic formulation for mpas-ocean |
publisher |
Copernicus Publications |
publishDate |
2024 |
url |
https://doi.org/10.5194/egusphere-2024-472 https://noa.gwlb.de/receive/cop_mods_00071982 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00070219/egusphere-2024-472.pdf https://egusphere.copernicus.org/preprints/2024/egusphere-2024-472/egusphere-2024-472.pdf |
genre |
Sea ice |
genre_facet |
Sea ice |
op_relation |
https://doi.org/10.5194/egusphere-2024-472 https://noa.gwlb.de/receive/cop_mods_00071982 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00070219/egusphere-2024-472.pdf https://egusphere.copernicus.org/preprints/2024/egusphere-2024-472/egusphere-2024-472.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/egusphere-2024-472 |
_version_ |
1796318862731378688 |