Submesoscale Rossby waves on the Antarctic circumpolar current
The eastward-flowing Antarctic circumpolar current (ACC) plays a central role in the global ocean overturning circulation and facilitates the exchange of water between the ocean surface and interior. Submesoscale eddies and fronts with scales between 1 and 10 km are regularly observed in the upper o...
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ftncar:oai:drupal-site.org:articles_21637 2023-09-05T13:13:22+02:00 Submesoscale Rossby waves on the Antarctic circumpolar current Taylor, John R. (author) Bachman, Scott (author) Stamper, Megan (author) Hosegood, Phil (author) Adams, Katherine (author) Sallee, Jean-Baptiste (author) Torres, Ricardo (author) 2018-03-28 https://doi.org/10.1126/sciadv.aao2824 en eng Science Advances--Sci. Adv.--2375-2548 articles:21637 ark:/85065/d79w0j7n doi:10.1126/sciadv.aao2824 Copyright 2018 Author(s). This work is licensed under a Creative Commons Attribution-NonCommerical 4.0 license. article Text 2018 ftncar https://doi.org/10.1126/sciadv.aao2824 2023-08-14T18:47:08Z The eastward-flowing Antarctic circumpolar current (ACC) plays a central role in the global ocean overturning circulation and facilitates the exchange of water between the ocean surface and interior. Submesoscale eddies and fronts with scales between 1 and 10 km are regularly observed in the upper ocean and are associated with strong vertical circulations and enhanced stratification. Despite their importance in other locations, comparatively little is known about submesoscales in the Southern Ocean. We present results from new observations, models, and theories showing that submesoscales are qualitatively changed by the strong jet associated with the ACC in the Scotia Sea, east of Drake Passage. Growing submesoscale disturbances develop along a dense filament and are transformed into submesoscale Rossby waves, which propagate upstream relative to the eastward jet. Unlike their counterparts in slower currents, the submesoscale Rossby waves do not destroy the underlying frontal structure. The development of submesoscale instabilities leads to strong net subduction of water associated with a dense outcropping filament, and later, the submesoscale Rossby waves are associated with intense vertical circulations. Article in Journal/Newspaper Antarc* Antarctic Drake Passage Scotia Sea Southern Ocean OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Antarctic Drake Passage Scotia Sea Southern Ocean The Antarctic Science Advances 4 3 eaao2824 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
The eastward-flowing Antarctic circumpolar current (ACC) plays a central role in the global ocean overturning circulation and facilitates the exchange of water between the ocean surface and interior. Submesoscale eddies and fronts with scales between 1 and 10 km are regularly observed in the upper ocean and are associated with strong vertical circulations and enhanced stratification. Despite their importance in other locations, comparatively little is known about submesoscales in the Southern Ocean. We present results from new observations, models, and theories showing that submesoscales are qualitatively changed by the strong jet associated with the ACC in the Scotia Sea, east of Drake Passage. Growing submesoscale disturbances develop along a dense filament and are transformed into submesoscale Rossby waves, which propagate upstream relative to the eastward jet. Unlike their counterparts in slower currents, the submesoscale Rossby waves do not destroy the underlying frontal structure. The development of submesoscale instabilities leads to strong net subduction of water associated with a dense outcropping filament, and later, the submesoscale Rossby waves are associated with intense vertical circulations. |
author2 |
Taylor, John R. (author) Bachman, Scott (author) Stamper, Megan (author) Hosegood, Phil (author) Adams, Katherine (author) Sallee, Jean-Baptiste (author) Torres, Ricardo (author) |
format |
Article in Journal/Newspaper |
title |
Submesoscale Rossby waves on the Antarctic circumpolar current |
spellingShingle |
Submesoscale Rossby waves on the Antarctic circumpolar current |
title_short |
Submesoscale Rossby waves on the Antarctic circumpolar current |
title_full |
Submesoscale Rossby waves on the Antarctic circumpolar current |
title_fullStr |
Submesoscale Rossby waves on the Antarctic circumpolar current |
title_full_unstemmed |
Submesoscale Rossby waves on the Antarctic circumpolar current |
title_sort |
submesoscale rossby waves on the antarctic circumpolar current |
publishDate |
2018 |
url |
https://doi.org/10.1126/sciadv.aao2824 |
geographic |
Antarctic Drake Passage Scotia Sea Southern Ocean The Antarctic |
geographic_facet |
Antarctic Drake Passage Scotia Sea Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Drake Passage Scotia Sea Southern Ocean |
genre_facet |
Antarc* Antarctic Drake Passage Scotia Sea Southern Ocean |
op_relation |
Science Advances--Sci. Adv.--2375-2548 articles:21637 ark:/85065/d79w0j7n doi:10.1126/sciadv.aao2824 |
op_rights |
Copyright 2018 Author(s). This work is licensed under a Creative Commons Attribution-NonCommerical 4.0 license. |
op_doi |
https://doi.org/10.1126/sciadv.aao2824 |
container_title |
Science Advances |
container_volume |
4 |
container_issue |
3 |
container_start_page |
eaao2824 |
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1776204672365756416 |