Localized General Vertical Coordinates for Quasi‐Eulerian Ocean Models: The Nordic Overflows Test‐Case
International audience A generalized methodology to deploy different types of vertical coordinate system in arbitrarily defined time-invariant local areas of quasi-Eulerian numerical ocean models is presented. After detailing its characteristics, we show how the general localization method can be us...
Published in: | Journal of Advances in Modeling Earth Systems |
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Main Authors: | , , , , , , |
Other Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2024
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Online Access: | https://hal.science/hal-04693964 https://hal.science/hal-04693964/document https://hal.science/hal-04693964/file/J%20Adv%20Model%20Earth%20Syst%20-%202024%20-%20Bruciaferri%20-%20Localized%20General%20Vertical%20Coordinates%20for%20Quasi%25E2%2580%2590Eulerian%20Ocean%20Models%20%20The.pdf https://doi.org/10.1029/2023ms003893 |
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Open Polar |
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Institut National de la Recherche Agronomique: ProdINRA |
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ftinraparis |
language |
English |
topic |
Diego Bruciaferri [SHS.ENVIR]Humanities and Social Sciences/Environmental studies |
spellingShingle |
Diego Bruciaferri [SHS.ENVIR]Humanities and Social Sciences/Environmental studies Bruciaferri, Diego Guiavarc'H, Catherine Hewitt, Helene, T Harle, James Almansi, Mattia Mathiot, Pierre Colombo, Pedro Localized General Vertical Coordinates for Quasi‐Eulerian Ocean Models: The Nordic Overflows Test‐Case |
topic_facet |
Diego Bruciaferri [SHS.ENVIR]Humanities and Social Sciences/Environmental studies |
description |
International audience A generalized methodology to deploy different types of vertical coordinate system in arbitrarily defined time-invariant local areas of quasi-Eulerian numerical ocean models is presented. After detailing its characteristics, we show how the general localization method can be used to improve the representation of the Nordic Seas overflows in the UK Met Office NEMO-based eddy-permitting global ocean configuration. Three z*-levels with partial steps configurations localizing different types of hybrid geopotential/terrain-following vertical coordinates in the proximity of the Greenland-Scotland ridge are implemented and compared against a control configuration. Experiments include a series of idealized and realistic numerical simulations where the skill of the models in computing pressure forces, reducing spurious diapycnal mixing and reproducing observed properties of the Nordic Seas overflows are assessed. Numerical results prove that the localization approach proposed here can be successfully used to embed terrain-following levels in a global geopotential levels-based configuration, provided that the localized vertical coordinate chosen is flexible enough to allow a smooth transition between the two. In addition, our experiments show that deploying localized terrain-following levels via the multi-envelope method allows the crucial reduction of spurious cross-isopycnal mixing when modeling bottom intensified buoyancy driven currents, significantly improving the realism of the Nordic Seas overflows simulations in comparison to the other configurations. Important hydrographic biases are found to similarly affect all the realistic experiments and a discussion on how their interaction with the type of localized vertical coordinate affects the realism of the simulated overflows is provided. Plain Language Summary Numerical ocean models are arguably one of the most advanced tools the scientific community can use to study the dynamics of the world's oceans. However, the ability of an ocean model ... |
author2 |
National Oceanography Centre (NOC) Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) Université Grenoble Alpes (UGA) Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) |
format |
Article in Journal/Newspaper |
author |
Bruciaferri, Diego Guiavarc'H, Catherine Hewitt, Helene, T Harle, James Almansi, Mattia Mathiot, Pierre Colombo, Pedro |
author_facet |
Bruciaferri, Diego Guiavarc'H, Catherine Hewitt, Helene, T Harle, James Almansi, Mattia Mathiot, Pierre Colombo, Pedro |
author_sort |
Bruciaferri, Diego |
title |
Localized General Vertical Coordinates for Quasi‐Eulerian Ocean Models: The Nordic Overflows Test‐Case |
title_short |
Localized General Vertical Coordinates for Quasi‐Eulerian Ocean Models: The Nordic Overflows Test‐Case |
title_full |
Localized General Vertical Coordinates for Quasi‐Eulerian Ocean Models: The Nordic Overflows Test‐Case |
title_fullStr |
Localized General Vertical Coordinates for Quasi‐Eulerian Ocean Models: The Nordic Overflows Test‐Case |
title_full_unstemmed |
Localized General Vertical Coordinates for Quasi‐Eulerian Ocean Models: The Nordic Overflows Test‐Case |
title_sort |
localized general vertical coordinates for quasi‐eulerian ocean models: the nordic overflows test‐case |
publisher |
HAL CCSD |
publishDate |
2024 |
url |
https://hal.science/hal-04693964 https://hal.science/hal-04693964/document https://hal.science/hal-04693964/file/J%20Adv%20Model%20Earth%20Syst%20-%202024%20-%20Bruciaferri%20-%20Localized%20General%20Vertical%20Coordinates%20for%20Quasi%25E2%2580%2590Eulerian%20Ocean%20Models%20%20The.pdf https://doi.org/10.1029/2023ms003893 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Greenland-Scotland Ridge Nordic Seas |
genre_facet |
Greenland Greenland-Scotland Ridge Nordic Seas |
op_source |
ISSN: 1942-2466 Journal of Advances in Modeling Earth Systems https://hal.science/hal-04693964 Journal of Advances in Modeling Earth Systems, 2024, 16, ⟨10.1029/2023ms003893⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2023ms003893 hal-04693964 https://hal.science/hal-04693964 https://hal.science/hal-04693964/document https://hal.science/hal-04693964/file/J%20Adv%20Model%20Earth%20Syst%20-%202024%20-%20Bruciaferri%20-%20Localized%20General%20Vertical%20Coordinates%20for%20Quasi%25E2%2580%2590Eulerian%20Ocean%20Models%20%20The.pdf doi:10.1029/2023ms003893 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2023ms003893 |
container_title |
Journal of Advances in Modeling Earth Systems |
container_volume |
16 |
container_issue |
3 |
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1811639187171966976 |
spelling |
ftinraparis:oai:HAL:hal-04693964v1 2024-09-30T14:36:00+00:00 Localized General Vertical Coordinates for Quasi‐Eulerian Ocean Models: The Nordic Overflows Test‐Case Bruciaferri, Diego Guiavarc'H, Catherine Hewitt, Helene, T Harle, James Almansi, Mattia Mathiot, Pierre Colombo, Pedro National Oceanography Centre (NOC) Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) Université Grenoble Alpes (UGA) Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) 2024-02-29 https://hal.science/hal-04693964 https://hal.science/hal-04693964/document https://hal.science/hal-04693964/file/J%20Adv%20Model%20Earth%20Syst%20-%202024%20-%20Bruciaferri%20-%20Localized%20General%20Vertical%20Coordinates%20for%20Quasi%25E2%2580%2590Eulerian%20Ocean%20Models%20%20The.pdf https://doi.org/10.1029/2023ms003893 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2023ms003893 hal-04693964 https://hal.science/hal-04693964 https://hal.science/hal-04693964/document https://hal.science/hal-04693964/file/J%20Adv%20Model%20Earth%20Syst%20-%202024%20-%20Bruciaferri%20-%20Localized%20General%20Vertical%20Coordinates%20for%20Quasi%25E2%2580%2590Eulerian%20Ocean%20Models%20%20The.pdf doi:10.1029/2023ms003893 http://creativecommons.org/licenses/by-nc-nd/ info:eu-repo/semantics/OpenAccess ISSN: 1942-2466 Journal of Advances in Modeling Earth Systems https://hal.science/hal-04693964 Journal of Advances in Modeling Earth Systems, 2024, 16, ⟨10.1029/2023ms003893⟩ Diego Bruciaferri [SHS.ENVIR]Humanities and Social Sciences/Environmental studies info:eu-repo/semantics/article Journal articles 2024 ftinraparis https://doi.org/10.1029/2023ms003893 2024-09-17T14:54:41Z International audience A generalized methodology to deploy different types of vertical coordinate system in arbitrarily defined time-invariant local areas of quasi-Eulerian numerical ocean models is presented. After detailing its characteristics, we show how the general localization method can be used to improve the representation of the Nordic Seas overflows in the UK Met Office NEMO-based eddy-permitting global ocean configuration. Three z*-levels with partial steps configurations localizing different types of hybrid geopotential/terrain-following vertical coordinates in the proximity of the Greenland-Scotland ridge are implemented and compared against a control configuration. Experiments include a series of idealized and realistic numerical simulations where the skill of the models in computing pressure forces, reducing spurious diapycnal mixing and reproducing observed properties of the Nordic Seas overflows are assessed. Numerical results prove that the localization approach proposed here can be successfully used to embed terrain-following levels in a global geopotential levels-based configuration, provided that the localized vertical coordinate chosen is flexible enough to allow a smooth transition between the two. In addition, our experiments show that deploying localized terrain-following levels via the multi-envelope method allows the crucial reduction of spurious cross-isopycnal mixing when modeling bottom intensified buoyancy driven currents, significantly improving the realism of the Nordic Seas overflows simulations in comparison to the other configurations. Important hydrographic biases are found to similarly affect all the realistic experiments and a discussion on how their interaction with the type of localized vertical coordinate affects the realism of the simulated overflows is provided. Plain Language Summary Numerical ocean models are arguably one of the most advanced tools the scientific community can use to study the dynamics of the world's oceans. However, the ability of an ocean model ... Article in Journal/Newspaper Greenland Greenland-Scotland Ridge Nordic Seas Institut National de la Recherche Agronomique: ProdINRA Greenland Journal of Advances in Modeling Earth Systems 16 3 |