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...
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ftucl:oai:eprints.ucl.ac.uk.OAI2:10077678 2023-12-24T10:11:30+01:00 Phased Response of the Subpolar Southern Ocean to Changes in Circumpolar Winds Naveira Garabato, AC Dotto, TS Hooley, J Bacon, S Tsamados, M Ridout, A Frajka-Williams, EE Herraiz-Borreguero, L Holland, PR Heorton, HDBS Meredith, MP 2019-06-16 text https://discovery.ucl.ac.uk/id/eprint/10077678/1/Tsamados_Phased%20Response%20of%20the%20Subpolar%20Southern%20Ocean%20to%20Changes%20in%20Circumpolar%20Winds_VoR.pdf https://discovery.ucl.ac.uk/id/eprint/10077678/ eng eng https://discovery.ucl.ac.uk/id/eprint/10077678/1/Tsamados_Phased%20Response%20of%20the%20Subpolar%20Southern%20Ocean%20to%20Changes%20in%20Circumpolar%20Winds_VoR.pdf https://discovery.ucl.ac.uk/id/eprint/10077678/ open Geophysical Research Letters , 46 (11) pp. 6024-6033. (2019) Article 2019 ftucl 2023-11-27T13:07:32Z 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 College London: UCL Discovery Antarctic Southern Ocean The Antarctic |
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Open Polar |
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University College London: UCL Discovery |
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ftucl |
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, AC Dotto, TS Hooley, J Bacon, S Tsamados, M Ridout, A Frajka-Williams, EE Herraiz-Borreguero, L Holland, PR Heorton, HDBS Meredith, MP |
spellingShingle |
Naveira Garabato, AC Dotto, TS Hooley, J Bacon, S Tsamados, M Ridout, A Frajka-Williams, EE Herraiz-Borreguero, L Holland, PR Heorton, HDBS Meredith, MP Phased Response of the Subpolar Southern Ocean to Changes in Circumpolar Winds |
author_facet |
Naveira Garabato, AC Dotto, TS Hooley, J Bacon, S Tsamados, M Ridout, A Frajka-Williams, EE Herraiz-Borreguero, L Holland, PR Heorton, HDBS Meredith, MP |
author_sort |
Naveira Garabato, AC |
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://discovery.ucl.ac.uk/id/eprint/10077678/1/Tsamados_Phased%20Response%20of%20the%20Subpolar%20Southern%20Ocean%20to%20Changes%20in%20Circumpolar%20Winds_VoR.pdf https://discovery.ucl.ac.uk/id/eprint/10077678/ |
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_source |
Geophysical Research Letters , 46 (11) pp. 6024-6033. (2019) |
op_relation |
https://discovery.ucl.ac.uk/id/eprint/10077678/1/Tsamados_Phased%20Response%20of%20the%20Subpolar%20Southern%20Ocean%20to%20Changes%20in%20Circumpolar%20Winds_VoR.pdf https://discovery.ucl.ac.uk/id/eprint/10077678/ |
op_rights |
open |
_version_ |
1786166048833142784 |