Synchronous intensification and warming of Antarctic Bottom Water outflow from the Weddell Gyre
Antarctic Bottom Water (AABW), the densest water in the global overturning circulation, has warmed in recent decades, most notably in the Atlantic. Time series recorded within the boundary currents immediately upstream and downstream of the most significant outflow of AABW from the Weddell Sea indic...
Published in: | Geophysical Research Letters |
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2011
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ftsouthampton:oai:eprints.soton.ac.uk:179495 2023-08-27T04:06:08+02:00 Synchronous intensification and warming of Antarctic Bottom Water outflow from the Weddell Gyre Meredith, Michael P. Gordon, Arnold L. Naveira Garabato, Alberto C. Abrahamsen, E. Povl Huber, Bruce A. Jullion, Loïc Venables, Hugh J. 2011 https://eprints.soton.ac.uk/179495/ unknown Meredith, Michael P., Gordon, Arnold L., Naveira Garabato, Alberto C., Abrahamsen, E. Povl, Huber, Bruce A., Jullion, Loïc and Venables, Hugh J. (2011) Synchronous intensification and warming of Antarctic Bottom Water outflow from the Weddell Gyre. Geophysical Research Letters, 38 (3), L03603. (doi:10.1029/2010GL046265 <http://dx.doi.org/10.1029/2010GL046265>). Article PeerReviewed 2011 ftsouthampton https://doi.org/10.1029/2010GL046265 2023-08-03T22:19:38Z Antarctic Bottom Water (AABW), the densest water in the global overturning circulation, has warmed in recent decades, most notably in the Atlantic. Time series recorded within the boundary currents immediately upstream and downstream of the most significant outflow of AABW from the Weddell Sea indicate that raised outflow temperatures are synchronous with stronger boundary current flows. These changes occur rapidly in response to changes in wind forcing, suggesting that barotropic dynamics and the response of the bottom Ekman layer are significant. The observed synchronicity indicates that the previously?detected weakening of the export of the colder forms of AABW from the Weddell Sea need not be associated with a reduction in the total flux of AABW exported via this route. These points need careful consideration when attributing the observed AABW warming in the Atlantic, and when determining its contribution to global heat budgets and sea level rise. Article in Journal/Newspaper Antarc* Antarctic Weddell Sea University of Southampton: e-Prints Soton Antarctic Weddell Weddell Sea Geophysical Research Letters 38 3 n/a n/a |
institution |
Open Polar |
collection |
University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
unknown |
description |
Antarctic Bottom Water (AABW), the densest water in the global overturning circulation, has warmed in recent decades, most notably in the Atlantic. Time series recorded within the boundary currents immediately upstream and downstream of the most significant outflow of AABW from the Weddell Sea indicate that raised outflow temperatures are synchronous with stronger boundary current flows. These changes occur rapidly in response to changes in wind forcing, suggesting that barotropic dynamics and the response of the bottom Ekman layer are significant. The observed synchronicity indicates that the previously?detected weakening of the export of the colder forms of AABW from the Weddell Sea need not be associated with a reduction in the total flux of AABW exported via this route. These points need careful consideration when attributing the observed AABW warming in the Atlantic, and when determining its contribution to global heat budgets and sea level rise. |
format |
Article in Journal/Newspaper |
author |
Meredith, Michael P. Gordon, Arnold L. Naveira Garabato, Alberto C. Abrahamsen, E. Povl Huber, Bruce A. Jullion, Loïc Venables, Hugh J. |
spellingShingle |
Meredith, Michael P. Gordon, Arnold L. Naveira Garabato, Alberto C. Abrahamsen, E. Povl Huber, Bruce A. Jullion, Loïc Venables, Hugh J. Synchronous intensification and warming of Antarctic Bottom Water outflow from the Weddell Gyre |
author_facet |
Meredith, Michael P. Gordon, Arnold L. Naveira Garabato, Alberto C. Abrahamsen, E. Povl Huber, Bruce A. Jullion, Loïc Venables, Hugh J. |
author_sort |
Meredith, Michael P. |
title |
Synchronous intensification and warming of Antarctic Bottom Water outflow from the Weddell Gyre |
title_short |
Synchronous intensification and warming of Antarctic Bottom Water outflow from the Weddell Gyre |
title_full |
Synchronous intensification and warming of Antarctic Bottom Water outflow from the Weddell Gyre |
title_fullStr |
Synchronous intensification and warming of Antarctic Bottom Water outflow from the Weddell Gyre |
title_full_unstemmed |
Synchronous intensification and warming of Antarctic Bottom Water outflow from the Weddell Gyre |
title_sort |
synchronous intensification and warming of antarctic bottom water outflow from the weddell gyre |
publishDate |
2011 |
url |
https://eprints.soton.ac.uk/179495/ |
geographic |
Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Weddell Sea |
genre_facet |
Antarc* Antarctic Weddell Sea |
op_relation |
Meredith, Michael P., Gordon, Arnold L., Naveira Garabato, Alberto C., Abrahamsen, E. Povl, Huber, Bruce A., Jullion, Loïc and Venables, Hugh J. (2011) Synchronous intensification and warming of Antarctic Bottom Water outflow from the Weddell Gyre. Geophysical Research Letters, 38 (3), L03603. (doi:10.1029/2010GL046265 <http://dx.doi.org/10.1029/2010GL046265>). |
op_doi |
https://doi.org/10.1029/2010GL046265 |
container_title |
Geophysical Research Letters |
container_volume |
38 |
container_issue |
3 |
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n/a |
op_container_end_page |
n/a |
_version_ |
1775346887904198656 |