Atlantic Meridional Overturning Circulation slowdown cooled the subtropical ocean
[1] Observations show that the upper 2 km of the subtropical North Atlantic Ocean cooled throughout 2010 and remained cold until at least December 2011. We show that these cold anomalies are partly driven by anomalous air‐sea exchange during the cold winters of 2009/2010 and 2010/2011 and, more surp...
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ftunivmaynooth:oai:mural.maynoothuniversity.ie:12195 2024-04-28T08:29:56+00:00 Atlantic Meridional Overturning Circulation slowdown cooled the subtropical ocean Cunningham, Stuart A. Roberts, Christopher D. Frajka‐Williams, Eleanor Johns, William E. Hobbs, Will Palmer, Matthew D. Rayner, Darren Smeed, David A. McCarthy, Gerard 2013-11-28 text https://mural.maynoothuniversity.ie/12195/ https://mural.maynoothuniversity.ie/12195/1/McCarthy_Meridional.Overturning_2013.pdf en eng American Geophysical Union https://mural.maynoothuniversity.ie/12195/1/McCarthy_Meridional.Overturning_2013.pdf Cunningham, Stuart A. and Roberts, Christopher D. and Frajka‐Williams, Eleanor and Johns, William E. and Hobbs, Will and Palmer, Matthew D. and Rayner, Darren and Smeed, David A. and McCarthy, Gerard (2013) Atlantic Meridional Overturning Circulation slowdown cooled the subtropical ocean. Geophysical Research Letters, 40 (23). pp. 6202-6207. ISSN 0094-8276 Article PeerReviewed 2013 ftunivmaynooth 2024-04-09T23:30:38Z [1] Observations show that the upper 2 km of the subtropical North Atlantic Ocean cooled throughout 2010 and remained cold until at least December 2011. We show that these cold anomalies are partly driven by anomalous air‐sea exchange during the cold winters of 2009/2010 and 2010/2011 and, more surprisingly, by extreme interannual variability in the ocean's northward heat transport at 26.5°N. This cooling driven by the ocean's meridional heat transport affects deeper layers isolated from the atmosphere on annual timescales and water that is entrained into the winter mixed layer thus lowering winter sea surface temperatures. Here we connect, for the first time, variability in the northward heat transport carried by the Atlantic Meridional Overturning Circulation to widespread sustained cooling of the subtropical North Atlantic, challenging the prevailing view that the ocean plays a passive role in the coupled ocean‐atmosphere system on monthly‐to‐seasonal timescales. Article in Journal/Newspaper North Atlantic Maynooth University ePrints and eTheses Archive (National University of Ireland) |
institution |
Open Polar |
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Maynooth University ePrints and eTheses Archive (National University of Ireland) |
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ftunivmaynooth |
language |
English |
description |
[1] Observations show that the upper 2 km of the subtropical North Atlantic Ocean cooled throughout 2010 and remained cold until at least December 2011. We show that these cold anomalies are partly driven by anomalous air‐sea exchange during the cold winters of 2009/2010 and 2010/2011 and, more surprisingly, by extreme interannual variability in the ocean's northward heat transport at 26.5°N. This cooling driven by the ocean's meridional heat transport affects deeper layers isolated from the atmosphere on annual timescales and water that is entrained into the winter mixed layer thus lowering winter sea surface temperatures. Here we connect, for the first time, variability in the northward heat transport carried by the Atlantic Meridional Overturning Circulation to widespread sustained cooling of the subtropical North Atlantic, challenging the prevailing view that the ocean plays a passive role in the coupled ocean‐atmosphere system on monthly‐to‐seasonal timescales. |
format |
Article in Journal/Newspaper |
author |
Cunningham, Stuart A. Roberts, Christopher D. Frajka‐Williams, Eleanor Johns, William E. Hobbs, Will Palmer, Matthew D. Rayner, Darren Smeed, David A. McCarthy, Gerard |
spellingShingle |
Cunningham, Stuart A. Roberts, Christopher D. Frajka‐Williams, Eleanor Johns, William E. Hobbs, Will Palmer, Matthew D. Rayner, Darren Smeed, David A. McCarthy, Gerard Atlantic Meridional Overturning Circulation slowdown cooled the subtropical ocean |
author_facet |
Cunningham, Stuart A. Roberts, Christopher D. Frajka‐Williams, Eleanor Johns, William E. Hobbs, Will Palmer, Matthew D. Rayner, Darren Smeed, David A. McCarthy, Gerard |
author_sort |
Cunningham, Stuart A. |
title |
Atlantic Meridional Overturning Circulation slowdown cooled the subtropical ocean |
title_short |
Atlantic Meridional Overturning Circulation slowdown cooled the subtropical ocean |
title_full |
Atlantic Meridional Overturning Circulation slowdown cooled the subtropical ocean |
title_fullStr |
Atlantic Meridional Overturning Circulation slowdown cooled the subtropical ocean |
title_full_unstemmed |
Atlantic Meridional Overturning Circulation slowdown cooled the subtropical ocean |
title_sort |
atlantic meridional overturning circulation slowdown cooled the subtropical ocean |
publisher |
American Geophysical Union |
publishDate |
2013 |
url |
https://mural.maynoothuniversity.ie/12195/ https://mural.maynoothuniversity.ie/12195/1/McCarthy_Meridional.Overturning_2013.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://mural.maynoothuniversity.ie/12195/1/McCarthy_Meridional.Overturning_2013.pdf Cunningham, Stuart A. and Roberts, Christopher D. and Frajka‐Williams, Eleanor and Johns, William E. and Hobbs, Will and Palmer, Matthew D. and Rayner, Darren and Smeed, David A. and McCarthy, Gerard (2013) Atlantic Meridional Overturning Circulation slowdown cooled the subtropical ocean. Geophysical Research Letters, 40 (23). pp. 6202-6207. ISSN 0094-8276 |
_version_ |
1797587973420613632 |