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...
Main Authors: | , , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
American Association for the Advancement of Science (AAAS)
2018
|
Subjects: | |
Online Access: | https://www.repository.cam.ac.uk/handle/1810/278347 https://doi.org/10.17863/CAM.25694 |
id |
ftunivcam:oai:www.repository.cam.ac.uk:1810/278347 |
---|---|
record_format |
openpolar |
spelling |
ftunivcam:oai:www.repository.cam.ac.uk:1810/278347 2024-02-04T09:55:00+01:00 Submesoscale Rossby waves on the Antarctic circumpolar current. Taylor, John R Bachman, Scott Stamper, Megan Hosegood, Phil Adams, Katherine Sallee, Jean-Baptiste Torres, Ricardo 2018-03 Electronic-eCollection application/pdf https://www.repository.cam.ac.uk/handle/1810/278347 https://doi.org/10.17863/CAM.25694 eng eng American Association for the Advancement of Science (AAAS) http://dx.doi.org/10.1126/sciadv.aao2824 Sci Adv https://www.repository.cam.ac.uk/handle/1810/278347 doi:10.17863/CAM.25694 Attribution-NonCommercial 4.0 International http://creativecommons.org/licenses/by-nc/4.0/ 0405 Oceanography Article 2018 ftunivcam https://doi.org/10.17863/CAM.25694 2024-01-11T23:22:02Z 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 Apollo - University of Cambridge Repository Antarctic Southern Ocean The Antarctic Drake Passage Scotia Sea |
institution |
Open Polar |
collection |
Apollo - University of Cambridge Repository |
op_collection_id |
ftunivcam |
language |
English |
topic |
0405 Oceanography |
spellingShingle |
0405 Oceanography Taylor, John R Bachman, Scott Stamper, Megan Hosegood, Phil Adams, Katherine Sallee, Jean-Baptiste Torres, Ricardo Submesoscale Rossby waves on the Antarctic circumpolar current. |
topic_facet |
0405 Oceanography |
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. |
format |
Article in Journal/Newspaper |
author |
Taylor, John R Bachman, Scott Stamper, Megan Hosegood, Phil Adams, Katherine Sallee, Jean-Baptiste Torres, Ricardo |
author_facet |
Taylor, John R Bachman, Scott Stamper, Megan Hosegood, Phil Adams, Katherine Sallee, Jean-Baptiste Torres, Ricardo |
author_sort |
Taylor, John R |
title |
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. |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
2018 |
url |
https://www.repository.cam.ac.uk/handle/1810/278347 https://doi.org/10.17863/CAM.25694 |
geographic |
Antarctic Southern Ocean The Antarctic Drake Passage Scotia Sea |
geographic_facet |
Antarctic Southern Ocean The Antarctic Drake Passage Scotia Sea |
genre |
Antarc* Antarctic Drake Passage Scotia Sea Southern Ocean |
genre_facet |
Antarc* Antarctic Drake Passage Scotia Sea Southern Ocean |
op_relation |
https://www.repository.cam.ac.uk/handle/1810/278347 doi:10.17863/CAM.25694 |
op_rights |
Attribution-NonCommercial 4.0 International http://creativecommons.org/licenses/by-nc/4.0/ |
op_doi |
https://doi.org/10.17863/CAM.25694 |
_version_ |
1789958838354444288 |