Influence of numerical schemes on current-topography interactions in 1/4° global ocean simulations
International audience The combined use of partial steps and of an energy-enstrophy conserving momentum advection scheme was shown by Barnier et al. (2006) to yield substantial improvements in the surface solution of the DRAKKAR ¼° global sea-ice/ocean model. The present study extends this investiga...
Published in: | Ocean Science |
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Main Authors: | , , , , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2007
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Online Access: | https://hal.science/hal-00331148 https://hal.science/hal-00331148/document https://hal.science/hal-00331148/file/os-3-509-2007.pdf https://doi.org/10.5194/os-3-509-2007 |
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École Polytechnique, Université Paris-Saclay: HAL |
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English |
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[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
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[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Penduff, Thierry Le Sommer, Julien Barnier, Bernard Tréguier, Anne-Marie Molines, Jean-Marc Madec, Gurvan Influence of numerical schemes on current-topography interactions in 1/4° global ocean simulations |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience The combined use of partial steps and of an energy-enstrophy conserving momentum advection scheme was shown by Barnier et al. (2006) to yield substantial improvements in the surface solution of the DRAKKAR ¼° global sea-ice/ocean model. The present study extends this investigation below the surface with a special focus on the Atlantic and reveals many improvements there as well: e.g. more realistic path, structure and transports of major currents (Gulf Stream, North Atlantic Current, Confluence region, Zapiola anticyclone), behavior of shedded rings, narrower subsurface boundary currents, stronger mean and eddy flows (MKE and EKE) at depth, beneficial enhancement of cyclonic (anticyclonic) flows around topographic depressions (mountains). Interestingly, adding a no-slip boundary condition to this improved model setup cancels most of these improvements, bringing back the biases diagnosed without the improved momentum advection scheme and partial steps (these biases are typical of other models at comparable or higher resolutions). This shows that current-topography interactions and full-depth eddy-admitting model solutions can be seriously deteriorated by near-bottom sidewall friction, either explicit or inherent to inadequate numerical schemes. |
author2 |
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) 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 d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Penduff, Thierry Le Sommer, Julien Barnier, Bernard Tréguier, Anne-Marie Molines, Jean-Marc Madec, Gurvan |
author_facet |
Penduff, Thierry Le Sommer, Julien Barnier, Bernard Tréguier, Anne-Marie Molines, Jean-Marc Madec, Gurvan |
author_sort |
Penduff, Thierry |
title |
Influence of numerical schemes on current-topography interactions in 1/4° global ocean simulations |
title_short |
Influence of numerical schemes on current-topography interactions in 1/4° global ocean simulations |
title_full |
Influence of numerical schemes on current-topography interactions in 1/4° global ocean simulations |
title_fullStr |
Influence of numerical schemes on current-topography interactions in 1/4° global ocean simulations |
title_full_unstemmed |
Influence of numerical schemes on current-topography interactions in 1/4° global ocean simulations |
title_sort |
influence of numerical schemes on current-topography interactions in 1/4° global ocean simulations |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.science/hal-00331148 https://hal.science/hal-00331148/document https://hal.science/hal-00331148/file/os-3-509-2007.pdf https://doi.org/10.5194/os-3-509-2007 |
op_coverage |
Bergen, Norway |
genre |
north atlantic current North Atlantic Sea ice |
genre_facet |
north atlantic current North Atlantic Sea ice |
op_source |
ISSN: 1812-0784 EISSN: 1812-0792 Ocean Science Workshop on Numerical Methods in Ocean Models https://hal.science/hal-00331148 Ocean Science, 2007, 3 (4), pp.509-524. ⟨10.5194/os-3-509-2007⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/os-3-509-2007 hal-00331148 https://hal.science/hal-00331148 https://hal.science/hal-00331148/document https://hal.science/hal-00331148/file/os-3-509-2007.pdf doi:10.5194/os-3-509-2007 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/os-3-509-2007 |
container_title |
Ocean Science |
container_volume |
3 |
container_issue |
4 |
container_start_page |
509 |
op_container_end_page |
524 |
_version_ |
1799484191596871680 |
spelling |
ftepunivpsaclay:oai:HAL:hal-00331148v1 2024-05-19T07:44:24+00:00 Influence of numerical schemes on current-topography interactions in 1/4° global ocean simulations Penduff, Thierry Le Sommer, Julien Barnier, Bernard Tréguier, Anne-Marie Molines, Jean-Marc Madec, Gurvan 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) 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 d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Bergen, Norway 2007-12-20 https://hal.science/hal-00331148 https://hal.science/hal-00331148/document https://hal.science/hal-00331148/file/os-3-509-2007.pdf https://doi.org/10.5194/os-3-509-2007 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/os-3-509-2007 hal-00331148 https://hal.science/hal-00331148 https://hal.science/hal-00331148/document https://hal.science/hal-00331148/file/os-3-509-2007.pdf doi:10.5194/os-3-509-2007 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 1812-0784 EISSN: 1812-0792 Ocean Science Workshop on Numerical Methods in Ocean Models https://hal.science/hal-00331148 Ocean Science, 2007, 3 (4), pp.509-524. ⟨10.5194/os-3-509-2007⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2007 ftepunivpsaclay https://doi.org/10.5194/os-3-509-2007 2024-04-25T00:42:25Z International audience The combined use of partial steps and of an energy-enstrophy conserving momentum advection scheme was shown by Barnier et al. (2006) to yield substantial improvements in the surface solution of the DRAKKAR ¼° global sea-ice/ocean model. The present study extends this investigation below the surface with a special focus on the Atlantic and reveals many improvements there as well: e.g. more realistic path, structure and transports of major currents (Gulf Stream, North Atlantic Current, Confluence region, Zapiola anticyclone), behavior of shedded rings, narrower subsurface boundary currents, stronger mean and eddy flows (MKE and EKE) at depth, beneficial enhancement of cyclonic (anticyclonic) flows around topographic depressions (mountains). Interestingly, adding a no-slip boundary condition to this improved model setup cancels most of these improvements, bringing back the biases diagnosed without the improved momentum advection scheme and partial steps (these biases are typical of other models at comparable or higher resolutions). This shows that current-topography interactions and full-depth eddy-admitting model solutions can be seriously deteriorated by near-bottom sidewall friction, either explicit or inherent to inadequate numerical schemes. Article in Journal/Newspaper north atlantic current North Atlantic Sea ice École Polytechnique, Université Paris-Saclay: HAL Ocean Science 3 4 509 524 |