The Mediterranean Outflow as an Example of a Deep Buoyancy-Driven Flow
Motivated by the Mediterranean outflow into the North Atlantic, a simple diffusive layer model of a deep buoyancy-driven circulation driven by a middepth inflow from the eastern boundary is developed. Cross-interfacial velocities are allowed and are related to the stratification through a density eq...
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American Geophysical Union
1987
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ftharvardudash:oai:dash.harvard.edu:1/3415491 2023-05-15T17:34:12+02:00 The Mediterranean Outflow as an Example of a Deep Buoyancy-Driven Flow Tziperman, Eli 1987 application/pdf http://nrs.harvard.edu/urn-3:HUL.InstRepos:3415491 https://doi.org/10.1029/JC092iC13p14510 en_US eng American Geophysical Union http://dx.doi.org/10.1029/JC092iC13p14510 http://www.seas.harvard.edu/climate/eli/reprints/Tziperman-1987.pdf Journal of Geophysical Research -All Series- Tziperman, Eli. 1987. The Mediterranean outflow as an example of a deep buoyancy-driven flow. Journal of Geophysical Research 92(C13): 14510-14520. 0148-0227 http://nrs.harvard.edu/urn-3:HUL.InstRepos:3415491 doi:10.1029/JC092iC13p14510 Journal Article 1987 ftharvardudash https://doi.org/10.1029/JC092iC13p14510 2022-04-04T12:36:38Z Motivated by the Mediterranean outflow into the North Atlantic, a simple diffusive layer model of a deep buoyancy-driven circulation driven by a middepth inflow from the eastern boundary is developed. Cross-interfacial velocities are allowed and are related to the stratification through a density equation. The horizontal circulation, cross-interfacial (vertical) velocities, and density stratification are all coupled and are determined by the model as part of the solution. The importance of water masses injected into the ocean interior in driving the deep circulation is demonstrated. The inflow from the eastern boundary turns northward before reaching the western boundary current region and flows along the eastern boundary. The westward distance traveled by the inflow before turning northward can be derived by considering the dissipation of long westward traveling Rossby waves by the vertical density diffusion. Layers above and below the inflow are also set in motion, and their circulation is southward along the eastern boundary, opposite to the direction of the circulation in the inflow layer. The vertically integrated circulation of the model is similar to that in a Stommel-Arons model with the mass source on the eastern boundary: Most of the inflow flows to the western boundary current region, spreads there along the boundary, and reenters the interior as a broad northward current. Earth and Planetary Sciences Version of Record Article in Journal/Newspaper North Atlantic Harvard University: DASH - Digital Access to Scholarship at Harvard Journal of Geophysical Research 92 C13 14510 |
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Open Polar |
collection |
Harvard University: DASH - Digital Access to Scholarship at Harvard |
op_collection_id |
ftharvardudash |
language |
English |
description |
Motivated by the Mediterranean outflow into the North Atlantic, a simple diffusive layer model of a deep buoyancy-driven circulation driven by a middepth inflow from the eastern boundary is developed. Cross-interfacial velocities are allowed and are related to the stratification through a density equation. The horizontal circulation, cross-interfacial (vertical) velocities, and density stratification are all coupled and are determined by the model as part of the solution. The importance of water masses injected into the ocean interior in driving the deep circulation is demonstrated. The inflow from the eastern boundary turns northward before reaching the western boundary current region and flows along the eastern boundary. The westward distance traveled by the inflow before turning northward can be derived by considering the dissipation of long westward traveling Rossby waves by the vertical density diffusion. Layers above and below the inflow are also set in motion, and their circulation is southward along the eastern boundary, opposite to the direction of the circulation in the inflow layer. The vertically integrated circulation of the model is similar to that in a Stommel-Arons model with the mass source on the eastern boundary: Most of the inflow flows to the western boundary current region, spreads there along the boundary, and reenters the interior as a broad northward current. Earth and Planetary Sciences Version of Record |
format |
Article in Journal/Newspaper |
author |
Tziperman, Eli |
spellingShingle |
Tziperman, Eli The Mediterranean Outflow as an Example of a Deep Buoyancy-Driven Flow |
author_facet |
Tziperman, Eli |
author_sort |
Tziperman, Eli |
title |
The Mediterranean Outflow as an Example of a Deep Buoyancy-Driven Flow |
title_short |
The Mediterranean Outflow as an Example of a Deep Buoyancy-Driven Flow |
title_full |
The Mediterranean Outflow as an Example of a Deep Buoyancy-Driven Flow |
title_fullStr |
The Mediterranean Outflow as an Example of a Deep Buoyancy-Driven Flow |
title_full_unstemmed |
The Mediterranean Outflow as an Example of a Deep Buoyancy-Driven Flow |
title_sort |
mediterranean outflow as an example of a deep buoyancy-driven flow |
publisher |
American Geophysical Union |
publishDate |
1987 |
url |
http://nrs.harvard.edu/urn-3:HUL.InstRepos:3415491 https://doi.org/10.1029/JC092iC13p14510 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
http://dx.doi.org/10.1029/JC092iC13p14510 http://www.seas.harvard.edu/climate/eli/reprints/Tziperman-1987.pdf Journal of Geophysical Research -All Series- Tziperman, Eli. 1987. The Mediterranean outflow as an example of a deep buoyancy-driven flow. Journal of Geophysical Research 92(C13): 14510-14520. 0148-0227 http://nrs.harvard.edu/urn-3:HUL.InstRepos:3415491 doi:10.1029/JC092iC13p14510 |
op_doi |
https://doi.org/10.1029/JC092iC13p14510 |
container_title |
Journal of Geophysical Research |
container_volume |
92 |
container_issue |
C13 |
container_start_page |
14510 |
_version_ |
1766132964379328512 |