An eddy permitting model of the Atlantic circulation : evaluating open boundary conditions
As part of the French CLIPPER project, an eddy permitting model of the Atlantic circulation has been run for 22 years. The domain has open boundaries at Drake passage and at 30°E, from Africa to Antarctica. The simulated mean circulation, as well as the eddy activity, is satisfactory for a 1/3° mode...
Published in: | Journal of Geophysical Research: Oceans |
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Main Authors: | , , , , , , , , |
Other Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2001
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Subjects: | |
Online Access: | https://hal.science/hal-00182337 https://hal.science/hal-00182337/document https://hal.science/hal-00182337/file/2000JC000376.pdf https://doi.org/10.1029/2000JC000376 |
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openpolar |
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Open Polar |
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Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph] [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] |
spellingShingle |
[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph] [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] Tréguier, Anne-Marie Barnier, Bernard de Miranda, A. P. Molines, Jean-Marc Grima, Nicolas Imbard, Maurice Madec, Gurvan Messager, C. Michel, S. An eddy permitting model of the Atlantic circulation : evaluating open boundary conditions |
topic_facet |
[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph] [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] |
description |
As part of the French CLIPPER project, an eddy permitting model of the Atlantic circulation has been run for 22 years. The domain has open boundaries at Drake passage and at 30°E, from Africa to Antarctica. The simulated mean circulation, as well as the eddy activity, is satisfactory for a 1/3° model resolution, and the meridional heat transport at 30°S is within the range estimated from observations. We use the “mixed” open boundary algorithm of Barnier et al. [1998], which has both a radiation condition and a relaxation to climatology. The climatological boundary forcing strongly constrains the solution in the whole domain. The model heat balance adjusts through the surface (heat flux retroaction term) more than the open boundaries. The radiation phase velocities calculated within the algorithm are analyzed. This shows, quite surprisingly, that both the eastern and western boundaries have a similar behavior, regardless of the preferred directions for advection (mainly eastward) and wave propagation (mainly westward). Our results confirm that open boundary algorithms behave differently according to the dynamics of the region considered. The passive boundary condition that Penduff et al. [2000] applied successfully in the north eastern Atlantic does not work in the present South Atlantic model. We emphasize the need for a careful prescription of the climatology at the open boundary, for which a new approach based on synoptic sections is implemented. |
author2 |
Laboratoire de physique des océans (LPO) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) Laboratoire des Écoulements Géophysiques et Industriels Grenoble (LEGI) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS) Institut du développement et des ressources en informatique scientifique (IDRIS) Centre National de la Recherche Scientifique (CNRS) Laboratoire d'océanographie dynamique et de climatologie (LODYC) Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'étude des transferts en hydrologie et environnement (LTHE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Tréguier, Anne-Marie Barnier, Bernard de Miranda, A. P. Molines, Jean-Marc Grima, Nicolas Imbard, Maurice Madec, Gurvan Messager, C. Michel, S. |
author_facet |
Tréguier, Anne-Marie Barnier, Bernard de Miranda, A. P. Molines, Jean-Marc Grima, Nicolas Imbard, Maurice Madec, Gurvan Messager, C. Michel, S. |
author_sort |
Tréguier, Anne-Marie |
title |
An eddy permitting model of the Atlantic circulation : evaluating open boundary conditions |
title_short |
An eddy permitting model of the Atlantic circulation : evaluating open boundary conditions |
title_full |
An eddy permitting model of the Atlantic circulation : evaluating open boundary conditions |
title_fullStr |
An eddy permitting model of the Atlantic circulation : evaluating open boundary conditions |
title_full_unstemmed |
An eddy permitting model of the Atlantic circulation : evaluating open boundary conditions |
title_sort |
eddy permitting model of the atlantic circulation : evaluating open boundary conditions |
publisher |
HAL CCSD |
publishDate |
2001 |
url |
https://hal.science/hal-00182337 https://hal.science/hal-00182337/document https://hal.science/hal-00182337/file/2000JC000376.pdf https://doi.org/10.1029/2000JC000376 |
geographic |
Drake Passage |
geographic_facet |
Drake Passage |
genre |
Antarc* Antarctica Drake Passage |
genre_facet |
Antarc* Antarctica Drake Passage |
op_source |
ISSN: 0148-0227 EISSN: 2156-2202 Journal of Geophysical Research https://hal.science/hal-00182337 Journal of Geophysical Research, 2001, 106 (C10), pp.22.115-22.129. ⟨10.1029/2000JC000376⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2000JC000376 hal-00182337 https://hal.science/hal-00182337 https://hal.science/hal-00182337/document https://hal.science/hal-00182337/file/2000JC000376.pdf doi:10.1029/2000JC000376 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2000JC000376 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
106 |
container_issue |
C10 |
container_start_page |
22115 |
op_container_end_page |
22129 |
_version_ |
1766068565997256704 |
spelling |
ftunivnantes:oai:HAL:hal-00182337v1 2023-05-15T13:35:39+02:00 An eddy permitting model of the Atlantic circulation : evaluating open boundary conditions Tréguier, Anne-Marie Barnier, Bernard de Miranda, A. P. Molines, Jean-Marc Grima, Nicolas Imbard, Maurice Madec, Gurvan Messager, C. Michel, S. Laboratoire de physique des océans (LPO) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) Laboratoire des Écoulements Géophysiques et Industriels Grenoble (LEGI) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS) Institut du développement et des ressources en informatique scientifique (IDRIS) Centre National de la Recherche Scientifique (CNRS) Laboratoire d'océanographie dynamique et de climatologie (LODYC) Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'étude des transferts en hydrologie et environnement (LTHE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS) 2001 https://hal.science/hal-00182337 https://hal.science/hal-00182337/document https://hal.science/hal-00182337/file/2000JC000376.pdf https://doi.org/10.1029/2000JC000376 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2000JC000376 hal-00182337 https://hal.science/hal-00182337 https://hal.science/hal-00182337/document https://hal.science/hal-00182337/file/2000JC000376.pdf doi:10.1029/2000JC000376 info:eu-repo/semantics/OpenAccess ISSN: 0148-0227 EISSN: 2156-2202 Journal of Geophysical Research https://hal.science/hal-00182337 Journal of Geophysical Research, 2001, 106 (C10), pp.22.115-22.129. ⟨10.1029/2000JC000376⟩ [PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph] [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] info:eu-repo/semantics/article Journal articles 2001 ftunivnantes https://doi.org/10.1029/2000JC000376 2023-03-01T02:42:52Z As part of the French CLIPPER project, an eddy permitting model of the Atlantic circulation has been run for 22 years. The domain has open boundaries at Drake passage and at 30°E, from Africa to Antarctica. The simulated mean circulation, as well as the eddy activity, is satisfactory for a 1/3° model resolution, and the meridional heat transport at 30°S is within the range estimated from observations. We use the “mixed” open boundary algorithm of Barnier et al. [1998], which has both a radiation condition and a relaxation to climatology. The climatological boundary forcing strongly constrains the solution in the whole domain. The model heat balance adjusts through the surface (heat flux retroaction term) more than the open boundaries. The radiation phase velocities calculated within the algorithm are analyzed. This shows, quite surprisingly, that both the eastern and western boundaries have a similar behavior, regardless of the preferred directions for advection (mainly eastward) and wave propagation (mainly westward). Our results confirm that open boundary algorithms behave differently according to the dynamics of the region considered. The passive boundary condition that Penduff et al. [2000] applied successfully in the north eastern Atlantic does not work in the present South Atlantic model. We emphasize the need for a careful prescription of the climatology at the open boundary, for which a new approach based on synoptic sections is implemented. Article in Journal/Newspaper Antarc* Antarctica Drake Passage Université de Nantes: HAL-UNIV-NANTES Drake Passage Journal of Geophysical Research: Oceans 106 C10 22115 22129 |