On the Patterns of Wind-Power Input to the Ocean Circulation

International audience Pathways of wind-power input into the ocean general circulation are analyzed using Ekman theory. Direct rates of wind work can be calculated through the wind stress acting on the surface geostrophic flow. However, because that energy is transported laterally in the Ekman layer...

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Published in:Journal of Physical Oceanography
Main Authors: Roquet, Fabien, Wunsch, Carl, Madec, Gurvan
Other Authors: 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
Language:English
Published: HAL CCSD 2011
Subjects:
Online Access:https://hal.science/hal-00755392
https://hal.science/hal-00755392/document
https://hal.science/hal-00755392/file/2013JD021060.pdf
https://doi.org/10.1175/JPO-D-11-024.1
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spelling ftuniversailles:oai:HAL:hal-00755392v1 2024-05-19T07:31:23+00:00 On the Patterns of Wind-Power Input to the Ocean Circulation Roquet, Fabien Wunsch, Carl Madec, Gurvan 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) 2011-12 https://hal.science/hal-00755392 https://hal.science/hal-00755392/document https://hal.science/hal-00755392/file/2013JD021060.pdf https://doi.org/10.1175/JPO-D-11-024.1 en eng HAL CCSD American Meteorological Society info:eu-repo/semantics/altIdentifier/doi/10.1175/JPO-D-11-024.1 hal-00755392 https://hal.science/hal-00755392 https://hal.science/hal-00755392/document https://hal.science/hal-00755392/file/2013JD021060.pdf BIBCODE: 2011JPO.41.2328R doi:10.1175/JPO-D-11-024.1 WOS: 000298830700005 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 0022-3670 EISSN: 1520-0485 Journal of Physical Oceanography https://hal.science/hal-00755392 Journal of Physical Oceanography, 2011, 41, pp.2328-2342. ⟨10.1175/JPO-D-11-024.1⟩ [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] info:eu-repo/semantics/article Journal articles 2011 ftuniversailles https://doi.org/10.1175/JPO-D-11-024.1 2024-04-25T00:23:41Z International audience Pathways of wind-power input into the ocean general circulation are analyzed using Ekman theory. Direct rates of wind work can be calculated through the wind stress acting on the surface geostrophic flow. However, because that energy is transported laterally in the Ekman layer, the injection into the geostrophic interior is actually controlled by Ekman pumping, with a pattern determined by the wind curl rather than the wind itself. Regions of power injection into the geostrophic interior are thus generally shifted poleward compared to regions of direct wind-power input, most notably in the Southern Ocean, where on average energy enters the interior 10° south of the Antarctic Circumpolar Current core. An interpretation of the wind-power input to the interior is proposed, expressed as a downward flux of pressure work. This energy flux is a measure of the work done by the Ekman pumping against the surface elevation pressure, helping to maintain the observed anomaly of sea surface height relative to the global-mean sea level. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ Journal of Physical Oceanography 41 12 2328 2342
institution Open Polar
collection Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
op_collection_id ftuniversailles
language English
topic [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph]
[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]
spellingShingle [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph]
[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]
Roquet, Fabien
Wunsch, Carl
Madec, Gurvan
On the Patterns of Wind-Power Input to the Ocean Circulation
topic_facet [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph]
[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]
description International audience Pathways of wind-power input into the ocean general circulation are analyzed using Ekman theory. Direct rates of wind work can be calculated through the wind stress acting on the surface geostrophic flow. However, because that energy is transported laterally in the Ekman layer, the injection into the geostrophic interior is actually controlled by Ekman pumping, with a pattern determined by the wind curl rather than the wind itself. Regions of power injection into the geostrophic interior are thus generally shifted poleward compared to regions of direct wind-power input, most notably in the Southern Ocean, where on average energy enters the interior 10° south of the Antarctic Circumpolar Current core. An interpretation of the wind-power input to the interior is proposed, expressed as a downward flux of pressure work. This energy flux is a measure of the work done by the Ekman pumping against the surface elevation pressure, helping to maintain the observed anomaly of sea surface height relative to the global-mean sea level.
author2 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 Roquet, Fabien
Wunsch, Carl
Madec, Gurvan
author_facet Roquet, Fabien
Wunsch, Carl
Madec, Gurvan
author_sort Roquet, Fabien
title On the Patterns of Wind-Power Input to the Ocean Circulation
title_short On the Patterns of Wind-Power Input to the Ocean Circulation
title_full On the Patterns of Wind-Power Input to the Ocean Circulation
title_fullStr On the Patterns of Wind-Power Input to the Ocean Circulation
title_full_unstemmed On the Patterns of Wind-Power Input to the Ocean Circulation
title_sort on the patterns of wind-power input to the ocean circulation
publisher HAL CCSD
publishDate 2011
url https://hal.science/hal-00755392
https://hal.science/hal-00755392/document
https://hal.science/hal-00755392/file/2013JD021060.pdf
https://doi.org/10.1175/JPO-D-11-024.1
genre Antarc*
Antarctic
Southern Ocean
genre_facet Antarc*
Antarctic
Southern Ocean
op_source ISSN: 0022-3670
EISSN: 1520-0485
Journal of Physical Oceanography
https://hal.science/hal-00755392
Journal of Physical Oceanography, 2011, 41, pp.2328-2342. ⟨10.1175/JPO-D-11-024.1⟩
op_relation info:eu-repo/semantics/altIdentifier/doi/10.1175/JPO-D-11-024.1
hal-00755392
https://hal.science/hal-00755392
https://hal.science/hal-00755392/document
https://hal.science/hal-00755392/file/2013JD021060.pdf
BIBCODE: 2011JPO.41.2328R
doi:10.1175/JPO-D-11-024.1
WOS: 000298830700005
op_rights http://creativecommons.org/licenses/by/
info:eu-repo/semantics/OpenAccess
op_doi https://doi.org/10.1175/JPO-D-11-024.1
container_title Journal of Physical Oceanography
container_volume 41
container_issue 12
container_start_page 2328
op_container_end_page 2342
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