Eddy saturation of equilibrated circumpolar currents
This study uses a sector configuration of an ocean general circulation model to examine the sensitivity of circumpolar transport and meridional overturning to changes in Southern Ocean wind stress and global diapycnal mixing. At eddy-permitting, and finer, resolution, the sensitivity of circumpolar...
Published in: | Journal of Physical Oceanography |
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American Meteorological Society
2016
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Online Access: | https://doi.org/10.1175/JPO-D-12-095.1 https://ora.ox.ac.uk/objects/uuid:9c9d05d6-be2f-4c3a-85fb-ff0c9aef8592 |
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ftuloxford:oai:ora.ox.ac.uk:uuid:9c9d05d6-be2f-4c3a-85fb-ff0c9aef8592 2023-05-15T18:24:50+02:00 Eddy saturation of equilibrated circumpolar currents Munday, D Johnson, H Marshall, D 2016-07-29 https://doi.org/10.1175/JPO-D-12-095.1 https://ora.ox.ac.uk/objects/uuid:9c9d05d6-be2f-4c3a-85fb-ff0c9aef8592 unknown American Meteorological Society doi:10.1175/JPO-D-12-095.1 https://ora.ox.ac.uk/objects/uuid:9c9d05d6-be2f-4c3a-85fb-ff0c9aef8592 https://doi.org/10.1175/JPO-D-12-095.1 info:eu-repo/semantics/openAccess Journal article 2016 ftuloxford https://doi.org/10.1175/JPO-D-12-095.1 2022-06-28T20:19:25Z This study uses a sector configuration of an ocean general circulation model to examine the sensitivity of circumpolar transport and meridional overturning to changes in Southern Ocean wind stress and global diapycnal mixing. At eddy-permitting, and finer, resolution, the sensitivity of circumpolar transport to forcing magnitude is drastically reduced. At sufficiently high resolution, there is little or no sensitivity of circumpolar transport to wind stress, even in the limit of no wind. In contrast, the meridional overturning circulation continues to vary with Southern Ocean wind stress, but with reduced sensitivity in the limit of high wind stress. Both the circumpolar transport and meridional overturning continue to vary with diapycnal diffusivity at all model resolutions. The circumpolar transport becomes less sensitive to changes in diapycnal diffusivity at higher resolution, although sensitivity always remains. In contrast, the overturning circulation is more sensitive to change in diapycnal diffusivity when the resolution is high enough to permit mesoscale eddies. Article in Journal/Newspaper Southern Ocean ORA - Oxford University Research Archive Southern Ocean Journal of Physical Oceanography 43 3 507 532 |
institution |
Open Polar |
collection |
ORA - Oxford University Research Archive |
op_collection_id |
ftuloxford |
language |
unknown |
description |
This study uses a sector configuration of an ocean general circulation model to examine the sensitivity of circumpolar transport and meridional overturning to changes in Southern Ocean wind stress and global diapycnal mixing. At eddy-permitting, and finer, resolution, the sensitivity of circumpolar transport to forcing magnitude is drastically reduced. At sufficiently high resolution, there is little or no sensitivity of circumpolar transport to wind stress, even in the limit of no wind. In contrast, the meridional overturning circulation continues to vary with Southern Ocean wind stress, but with reduced sensitivity in the limit of high wind stress. Both the circumpolar transport and meridional overturning continue to vary with diapycnal diffusivity at all model resolutions. The circumpolar transport becomes less sensitive to changes in diapycnal diffusivity at higher resolution, although sensitivity always remains. In contrast, the overturning circulation is more sensitive to change in diapycnal diffusivity when the resolution is high enough to permit mesoscale eddies. |
format |
Article in Journal/Newspaper |
author |
Munday, D Johnson, H Marshall, D |
spellingShingle |
Munday, D Johnson, H Marshall, D Eddy saturation of equilibrated circumpolar currents |
author_facet |
Munday, D Johnson, H Marshall, D |
author_sort |
Munday, D |
title |
Eddy saturation of equilibrated circumpolar currents |
title_short |
Eddy saturation of equilibrated circumpolar currents |
title_full |
Eddy saturation of equilibrated circumpolar currents |
title_fullStr |
Eddy saturation of equilibrated circumpolar currents |
title_full_unstemmed |
Eddy saturation of equilibrated circumpolar currents |
title_sort |
eddy saturation of equilibrated circumpolar currents |
publisher |
American Meteorological Society |
publishDate |
2016 |
url |
https://doi.org/10.1175/JPO-D-12-095.1 https://ora.ox.ac.uk/objects/uuid:9c9d05d6-be2f-4c3a-85fb-ff0c9aef8592 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
doi:10.1175/JPO-D-12-095.1 https://ora.ox.ac.uk/objects/uuid:9c9d05d6-be2f-4c3a-85fb-ff0c9aef8592 https://doi.org/10.1175/JPO-D-12-095.1 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1175/JPO-D-12-095.1 |
container_title |
Journal of Physical Oceanography |
container_volume |
43 |
container_issue |
3 |
container_start_page |
507 |
op_container_end_page |
532 |
_version_ |
1766205772950142976 |