Modelling the North Atlantic Ocean Subpolar Gyre
The authors present the first quantitative comparison between new velocity datasets and high-resolution models in the North Atlantic subpolar gyre [ 1 ⁄10°Parallel Ocean Program model (POPNA10), Miami Isopycnic Coordinate Ocean Model (MICOM), 1 ⁄6°Atlantic model (ATL6), and Family of Linked Atlantic...
Published in: | Journal of Physical Oceanography |
---|---|
Main Authors: | , , , |
Other Authors: | , , , |
Format: | Conference Object |
Language: | English |
Published: |
HAL CCSD
2004
|
Subjects: | |
Online Access: | https://hal.science/hal-00252051 https://doi.org/10.1175/JPO2720.1 |
id |
ftunivnantes:oai:HAL:hal-00252051v1 |
---|---|
record_format |
openpolar |
spelling |
ftunivnantes:oai:HAL:hal-00252051v1 2023-05-15T15:51:50+02:00 Modelling the North Atlantic Ocean Subpolar Gyre Tréguier, Anne-Marie Penduff, Thierry Chassignet, Eric P. Talley, L. 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) Baltimore, United States 2004-06 https://hal.science/hal-00252051 https://doi.org/10.1175/JPO2720.1 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.1175/JPO2720.1 hal-00252051 https://hal.science/hal-00252051 doi:10.1175/JPO2720.1 http://creativecommons.org/licenses/by/ 1st International CLIVAR Science conference https://hal.science/hal-00252051 1st International CLIVAR Science conference, Jun 2004, Baltimore, United States. ⟨10.1175/JPO2720.1⟩ [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/conferenceObject Conference papers 2004 ftunivnantes https://doi.org/10.1175/JPO2720.1 2023-03-01T03:50:28Z The authors present the first quantitative comparison between new velocity datasets and high-resolution models in the North Atlantic subpolar gyre [ 1 ⁄10°Parallel Ocean Program model (POPNA10), Miami Isopycnic Coordinate Ocean Model (MICOM), 1 ⁄6°Atlantic model (ATL6), and Family of Linked Atlantic Ocean Model Experiments (FLAME)]. At the surface, the model velocities agree generally well with World Ocean Circulation Experiment (WOCE) drifter data. Two noticeable exceptions are the weakness of the East Greenland coastal current in models and the presence in the surface layers of a strong southwestward East Reykjanes Ridge Current. At depths, the most prominent feature of the circulation is the boundary current following the continental slope. In this narrow flow, it is found that gridded float datasets cannot be used for a quantitative comparison with models. The models have very different patterns of deep convec-tion, and it is suggested that this could be related to the differences in their barotropic transport at Cape Farewell. Models show a large drift in watermass properties with a salinization of the Labrador Sea Water. The authors believe that the main cause is related to horizontal transports of salt because models with different forcing and vertical mixing share the same salinization problem. A remarkable feature of the model solutions is the large westward transport over Reykjanes Ridge [10 Sv (Sv ϵ 10 6 m 3 s Ϫ1) or more]. Conference Object Cape Farewell East Greenland Greenland Labrador Sea North Atlantic Université de Nantes: HAL-UNIV-NANTES Greenland Reykjanes ENVELOPE(-22.250,-22.250,65.467,65.467) Journal of Physical Oceanography 35 5 757 774 |
institution |
Open Polar |
collection |
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 Penduff, Thierry Chassignet, Eric P. Talley, L. Modelling the North Atlantic Ocean Subpolar Gyre |
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 |
The authors present the first quantitative comparison between new velocity datasets and high-resolution models in the North Atlantic subpolar gyre [ 1 ⁄10°Parallel Ocean Program model (POPNA10), Miami Isopycnic Coordinate Ocean Model (MICOM), 1 ⁄6°Atlantic model (ATL6), and Family of Linked Atlantic Ocean Model Experiments (FLAME)]. At the surface, the model velocities agree generally well with World Ocean Circulation Experiment (WOCE) drifter data. Two noticeable exceptions are the weakness of the East Greenland coastal current in models and the presence in the surface layers of a strong southwestward East Reykjanes Ridge Current. At depths, the most prominent feature of the circulation is the boundary current following the continental slope. In this narrow flow, it is found that gridded float datasets cannot be used for a quantitative comparison with models. The models have very different patterns of deep convec-tion, and it is suggested that this could be related to the differences in their barotropic transport at Cape Farewell. Models show a large drift in watermass properties with a salinization of the Labrador Sea Water. The authors believe that the main cause is related to horizontal transports of salt because models with different forcing and vertical mixing share the same salinization problem. A remarkable feature of the model solutions is the large westward transport over Reykjanes Ridge [10 Sv (Sv ϵ 10 6 m 3 s Ϫ1) or more]. |
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) |
format |
Conference Object |
author |
Tréguier, Anne-Marie Penduff, Thierry Chassignet, Eric P. Talley, L. |
author_facet |
Tréguier, Anne-Marie Penduff, Thierry Chassignet, Eric P. Talley, L. |
author_sort |
Tréguier, Anne-Marie |
title |
Modelling the North Atlantic Ocean Subpolar Gyre |
title_short |
Modelling the North Atlantic Ocean Subpolar Gyre |
title_full |
Modelling the North Atlantic Ocean Subpolar Gyre |
title_fullStr |
Modelling the North Atlantic Ocean Subpolar Gyre |
title_full_unstemmed |
Modelling the North Atlantic Ocean Subpolar Gyre |
title_sort |
modelling the north atlantic ocean subpolar gyre |
publisher |
HAL CCSD |
publishDate |
2004 |
url |
https://hal.science/hal-00252051 https://doi.org/10.1175/JPO2720.1 |
op_coverage |
Baltimore, United States |
long_lat |
ENVELOPE(-22.250,-22.250,65.467,65.467) |
geographic |
Greenland Reykjanes |
geographic_facet |
Greenland Reykjanes |
genre |
Cape Farewell East Greenland Greenland Labrador Sea North Atlantic |
genre_facet |
Cape Farewell East Greenland Greenland Labrador Sea North Atlantic |
op_source |
1st International CLIVAR Science conference https://hal.science/hal-00252051 1st International CLIVAR Science conference, Jun 2004, Baltimore, United States. ⟨10.1175/JPO2720.1⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1175/JPO2720.1 hal-00252051 https://hal.science/hal-00252051 doi:10.1175/JPO2720.1 |
op_rights |
http://creativecommons.org/licenses/by/ |
op_doi |
https://doi.org/10.1175/JPO2720.1 |
container_title |
Journal of Physical Oceanography |
container_volume |
35 |
container_issue |
5 |
container_start_page |
757 |
op_container_end_page |
774 |
_version_ |
1766387218841075712 |