Phased response of the subpolar Southern Ocean to changes in circumpolar winds
The response of the subpolar Southern Ocean (sSO) to wind forcing is assessed using satellite radar altimetry. sSO sea level exhibits a phased, zonally coherent, bimodal adjustment to circumpolar wind changes, involving comparable seasonal and interannual variations. The adjustment is effected via a...
Published in: | Geophysical Research Letters |
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2019
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ftuniveastangl:oai:ueaeprints.uea.ac.uk:80813 2023-05-15T14:04:01+02:00 Phased response of the subpolar Southern Ocean to changes in circumpolar winds Naveira Garabato, A. C. Dotto, T. S. Hooley, J. Bacon, S. Tsamados, M. Ridout, A. Frajka‐Williams, E. E. Herraiz‐Borreguero, L. Holland, P. R. Heorton, H. D. B. S. Meredith, M. P. 2019-06-16 application/pdf https://ueaeprints.uea.ac.uk/id/eprint/80813/ https://ueaeprints.uea.ac.uk/id/eprint/80813/1/Published_Version.pdf https://doi.org/10.1029/2019GL082850 en eng https://ueaeprints.uea.ac.uk/id/eprint/80813/1/Published_Version.pdf Naveira Garabato, A. C., Dotto, T. S., Hooley, J., Bacon, S., Tsamados, M., Ridout, A., Frajka‐Williams, E. E., Herraiz‐Borreguero, L., Holland, P. R., Heorton, H. D. B. S. and Meredith, M. P. (2019) Phased response of the subpolar Southern Ocean to changes in circumpolar winds. Geophysical Research Letters, 46 (11). pp. 6024-6033. ISSN 0094-8276 doi:10.1029/2019GL082850 cc_by CC-BY Article PeerReviewed 2019 ftuniveastangl https://doi.org/10.1029/2019GL082850 2023-01-30T21:55:25Z The response of the subpolar Southern Ocean (sSO) to wind forcing is assessed using satellite radar altimetry. sSO sea level exhibits a phased, zonally coherent, bimodal adjustment to circumpolar wind changes, involving comparable seasonal and interannual variations. The adjustment is effected via a quasi-instantaneous exchange of mass between the Antarctic continental shelf and the sSO to the north, and a 2-month-delayed transfer of mass between the wider Southern Ocean and the subtropics. Both adjustment modes are consistent with an Ekman-mediated response to variations in surface stress. Only the fast mode projects significantly onto the surface geostrophic flow of the sSO; thus, the regional circulation varies in phase with the leading edge of sSO sea level variability. The surface forcing of changes in the sSO system is partly associated with variations of surface winds linked to the Southern Annular Mode and is modulated by sea ice cover near Antarctica. Article in Journal/Newspaper Antarc* Antarctic Antarctica Sea ice Southern Ocean University of East Anglia: UEA Digital Repository Antarctic Southern Ocean The Antarctic Geophysical Research Letters 46 11 6024 6033 |
institution |
Open Polar |
collection |
University of East Anglia: UEA Digital Repository |
op_collection_id |
ftuniveastangl |
language |
English |
description |
The response of the subpolar Southern Ocean (sSO) to wind forcing is assessed using satellite radar altimetry. sSO sea level exhibits a phased, zonally coherent, bimodal adjustment to circumpolar wind changes, involving comparable seasonal and interannual variations. The adjustment is effected via a quasi-instantaneous exchange of mass between the Antarctic continental shelf and the sSO to the north, and a 2-month-delayed transfer of mass between the wider Southern Ocean and the subtropics. Both adjustment modes are consistent with an Ekman-mediated response to variations in surface stress. Only the fast mode projects significantly onto the surface geostrophic flow of the sSO; thus, the regional circulation varies in phase with the leading edge of sSO sea level variability. The surface forcing of changes in the sSO system is partly associated with variations of surface winds linked to the Southern Annular Mode and is modulated by sea ice cover near Antarctica. |
format |
Article in Journal/Newspaper |
author |
Naveira Garabato, A. C. Dotto, T. S. Hooley, J. Bacon, S. Tsamados, M. Ridout, A. Frajka‐Williams, E. E. Herraiz‐Borreguero, L. Holland, P. R. Heorton, H. D. B. S. Meredith, M. P. |
spellingShingle |
Naveira Garabato, A. C. Dotto, T. S. Hooley, J. Bacon, S. Tsamados, M. Ridout, A. Frajka‐Williams, E. E. Herraiz‐Borreguero, L. Holland, P. R. Heorton, H. D. B. S. Meredith, M. P. Phased response of the subpolar Southern Ocean to changes in circumpolar winds |
author_facet |
Naveira Garabato, A. C. Dotto, T. S. Hooley, J. Bacon, S. Tsamados, M. Ridout, A. Frajka‐Williams, E. E. Herraiz‐Borreguero, L. Holland, P. R. Heorton, H. D. B. S. Meredith, M. P. |
author_sort |
Naveira Garabato, A. C. |
title |
Phased response of the subpolar Southern Ocean to changes in circumpolar winds |
title_short |
Phased response of the subpolar Southern Ocean to changes in circumpolar winds |
title_full |
Phased response of the subpolar Southern Ocean to changes in circumpolar winds |
title_fullStr |
Phased response of the subpolar Southern Ocean to changes in circumpolar winds |
title_full_unstemmed |
Phased response of the subpolar Southern Ocean to changes in circumpolar winds |
title_sort |
phased response of the subpolar southern ocean to changes in circumpolar winds |
publishDate |
2019 |
url |
https://ueaeprints.uea.ac.uk/id/eprint/80813/ https://ueaeprints.uea.ac.uk/id/eprint/80813/1/Published_Version.pdf https://doi.org/10.1029/2019GL082850 |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctica Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Sea ice Southern Ocean |
op_relation |
https://ueaeprints.uea.ac.uk/id/eprint/80813/1/Published_Version.pdf Naveira Garabato, A. C., Dotto, T. S., Hooley, J., Bacon, S., Tsamados, M., Ridout, A., Frajka‐Williams, E. E., Herraiz‐Borreguero, L., Holland, P. R., Heorton, H. D. B. S. and Meredith, M. P. (2019) Phased response of the subpolar Southern Ocean to changes in circumpolar winds. Geophysical Research Letters, 46 (11). pp. 6024-6033. ISSN 0094-8276 doi:10.1029/2019GL082850 |
op_rights |
cc_by |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1029/2019GL082850 |
container_title |
Geophysical Research Letters |
container_volume |
46 |
container_issue |
11 |
container_start_page |
6024 |
op_container_end_page |
6033 |
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1766274964769472512 |