2006: A model of the upper branch of the meridional overturning of the southern ocean
Abstract A zonal-average model of the upper branch of the meridional overturning circulation of the southern ocean is constructed and used to discuss the processes -wind, buoyancy, eddy forcing and boundary conditions -that control its strength and sense of circulation. The geometry of the thermocli...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.1045.8592 2023-05-15T13:55:17+02:00 2006: A model of the upper branch of the meridional overturning of the southern ocean John Marshall Timour Radko The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1045.8592 http://wind.mit.edu/%7Ejscott/AMOC/marshall_radko.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1045.8592 http://wind.mit.edu/%7Ejscott/AMOC/marshall_radko.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://wind.mit.edu/%7Ejscott/AMOC/marshall_radko.pdf text ftciteseerx 2020-04-05T00:18:36Z Abstract A zonal-average model of the upper branch of the meridional overturning circulation of the southern ocean is constructed and used to discuss the processes -wind, buoyancy, eddy forcing and boundary conditions -that control its strength and sense of circulation. The geometry of the thermocline 'wedge', set by the mapping between the vertical spacing of buoyancy surfaces (the stratification) on the equatorial flank of the Antarctic Circumpolar Current and their outcrop at the sea surface, is seen to play a central role by setting the interior large-scale potential vorticity distribution. It is shown that the action of eddies mixing this potential vorticity field induces a residual flow in the meridional plane much as is observed, with upwelling of fluid around Antarctica, northward surface flow and subduction to form intermediate water. Along with this overturning circulation there is a concomitant air-sea buoyancy flux directed in to the ocean. Text Antarc* Antarctic Antarctica Southern Ocean Unknown Antarctic Southern Ocean The Antarctic |
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Open Polar |
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ftciteseerx |
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English |
description |
Abstract A zonal-average model of the upper branch of the meridional overturning circulation of the southern ocean is constructed and used to discuss the processes -wind, buoyancy, eddy forcing and boundary conditions -that control its strength and sense of circulation. The geometry of the thermocline 'wedge', set by the mapping between the vertical spacing of buoyancy surfaces (the stratification) on the equatorial flank of the Antarctic Circumpolar Current and their outcrop at the sea surface, is seen to play a central role by setting the interior large-scale potential vorticity distribution. It is shown that the action of eddies mixing this potential vorticity field induces a residual flow in the meridional plane much as is observed, with upwelling of fluid around Antarctica, northward surface flow and subduction to form intermediate water. Along with this overturning circulation there is a concomitant air-sea buoyancy flux directed in to the ocean. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
John Marshall Timour Radko |
spellingShingle |
John Marshall Timour Radko 2006: A model of the upper branch of the meridional overturning of the southern ocean |
author_facet |
John Marshall Timour Radko |
author_sort |
John Marshall |
title |
2006: A model of the upper branch of the meridional overturning of the southern ocean |
title_short |
2006: A model of the upper branch of the meridional overturning of the southern ocean |
title_full |
2006: A model of the upper branch of the meridional overturning of the southern ocean |
title_fullStr |
2006: A model of the upper branch of the meridional overturning of the southern ocean |
title_full_unstemmed |
2006: A model of the upper branch of the meridional overturning of the southern ocean |
title_sort |
2006: a model of the upper branch of the meridional overturning of the southern ocean |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1045.8592 http://wind.mit.edu/%7Ejscott/AMOC/marshall_radko.pdf |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Southern Ocean |
op_source |
http://wind.mit.edu/%7Ejscott/AMOC/marshall_radko.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1045.8592 http://wind.mit.edu/%7Ejscott/AMOC/marshall_radko.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766261667652435968 |