Interdecadal variability of the Southern Ocean
The intrinsic variability of the Antarctic Circumpolar Current is investigated using an idealized wind-driven model. The model uses three quasigeostrophic layers, with steady wind stress forcing, and no diabatic effects. Despite the idealized nature of the model, the simulations display a robust mod...
Published in: | Journal of Physical Oceanography |
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2006
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ftsouthampton:oai:eprints.soton.ac.uk:43995 2023-07-30T03:58:27+02:00 Interdecadal variability of the Southern Ocean Hogg, A.McC. Blundell, J.R. 2006 https://eprints.soton.ac.uk/43995/ http://ams.allenpress.com/perlserv/?request=get-abstract&doi=10.1175%2FJPO2934.1 unknown Hogg, A.McC. and Blundell, J.R. (2006) Interdecadal variability of the Southern Ocean. Journal of Physical Oceanography, 36 (8), 1626-1645. (doi:10.1175/JPO2934.1 <http://dx.doi.org/10.1175/JPO2934.1>). Article PeerReviewed 2006 ftsouthampton https://doi.org/10.1175/JPO2934.1 2023-07-09T20:50:48Z The intrinsic variability of the Antarctic Circumpolar Current is investigated using an idealized wind-driven model. The model uses three quasigeostrophic layers, with steady wind stress forcing, and no diabatic effects. Despite the idealized nature of the model, the simulations display a robust mode of low-frequency variability in the flow. It is demonstrated that this variability is dependent upon the explicit simulation of the dynamics of mesoscale eddies. As such, the variability is sensitive to stratification, horizontal viscosity, bottom stress, and topography. The energetic balance of the variability is diagnosed, and a driving mechanism is proposed that involves positive feedback between the generation of eddies through baroclinic instability and the dynamics of the mean circulation. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean University of Southampton: e-Prints Soton Antarctic Southern Ocean The Antarctic Journal of Physical Oceanography 36 8 1626 1645 |
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Open Polar |
collection |
University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
unknown |
description |
The intrinsic variability of the Antarctic Circumpolar Current is investigated using an idealized wind-driven model. The model uses three quasigeostrophic layers, with steady wind stress forcing, and no diabatic effects. Despite the idealized nature of the model, the simulations display a robust mode of low-frequency variability in the flow. It is demonstrated that this variability is dependent upon the explicit simulation of the dynamics of mesoscale eddies. As such, the variability is sensitive to stratification, horizontal viscosity, bottom stress, and topography. The energetic balance of the variability is diagnosed, and a driving mechanism is proposed that involves positive feedback between the generation of eddies through baroclinic instability and the dynamics of the mean circulation. |
format |
Article in Journal/Newspaper |
author |
Hogg, A.McC. Blundell, J.R. |
spellingShingle |
Hogg, A.McC. Blundell, J.R. Interdecadal variability of the Southern Ocean |
author_facet |
Hogg, A.McC. Blundell, J.R. |
author_sort |
Hogg, A.McC. |
title |
Interdecadal variability of the Southern Ocean |
title_short |
Interdecadal variability of the Southern Ocean |
title_full |
Interdecadal variability of the Southern Ocean |
title_fullStr |
Interdecadal variability of the Southern Ocean |
title_full_unstemmed |
Interdecadal variability of the Southern Ocean |
title_sort |
interdecadal variability of the southern ocean |
publishDate |
2006 |
url |
https://eprints.soton.ac.uk/43995/ http://ams.allenpress.com/perlserv/?request=get-abstract&doi=10.1175%2FJPO2934.1 |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
Hogg, A.McC. and Blundell, J.R. (2006) Interdecadal variability of the Southern Ocean. Journal of Physical Oceanography, 36 (8), 1626-1645. (doi:10.1175/JPO2934.1 <http://dx.doi.org/10.1175/JPO2934.1>). |
op_doi |
https://doi.org/10.1175/JPO2934.1 |
container_title |
Journal of Physical Oceanography |
container_volume |
36 |
container_issue |
8 |
container_start_page |
1626 |
op_container_end_page |
1645 |
_version_ |
1772821250118254592 |