The North Atlantic Ocean is in a state of reduced overturning
The Atlantic Meridional Overturning Circulation (AMOC) is responsible for a variable and climatically important northward transport of heat. Using data from an array of instruments that span the Atlantic at 26°N, we show that the AMOC has been in a state of reduced overturning since 2008 as compared...
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American Geophysical Union
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ftunivmaynooth:oai:mural.maynoothuniversity.ie:12175 2024-04-28T08:29:27+00:00 The North Atlantic Ocean is in a state of reduced overturning Smeed, David A. Josey, S.A. Beaulieu, Claudie Johns, W.E. Moat, Ben I. Frajka-Williams, Eleanor Rayner, Darren Meinen, Christopher S. Baringer, Molly O. Bryden, Harry L. McCarthy, Gerard 2018-01-29 text https://mural.maynoothuniversity.ie/12175/ https://mural.maynoothuniversity.ie/12175/1/McCarty_North_2018.pdf en eng American Geophysical Union https://mural.maynoothuniversity.ie/12175/1/McCarty_North_2018.pdf Smeed, David A. and Josey, S.A. and Beaulieu, Claudie and Johns, W.E. and Moat, Ben I. and Frajka-Williams, Eleanor and Rayner, Darren and Meinen, Christopher S. and Baringer, Molly O. and Bryden, Harry L. and McCarthy, Gerard (2018) The North Atlantic Ocean is in a state of reduced overturning. Geophysical Research Letters, 45 (3). pp. 1527-1533. ISSN 0094-8276 Article PeerReviewed 2018 ftunivmaynooth 2024-04-09T23:30:38Z The Atlantic Meridional Overturning Circulation (AMOC) is responsible for a variable and climatically important northward transport of heat. Using data from an array of instruments that span the Atlantic at 26°N, we show that the AMOC has been in a state of reduced overturning since 2008 as compared to 2004–2008. This change of AMOC state is concurrent with other changes in the North Atlantic such as a northward shift and broadening of the Gulf Stream and altered patterns of heat content and sea surface temperature. These changes resemble the response to a declining AMOC predicted by coupled climate models. Concurrent changes in air‐sea fluxes close to the western boundary reveal that the changes in ocean heat transport and sea surface temperature have altered the pattern of ocean‐atmosphere heat exchange over the North Atlantic. These results provide strong observational evidence that the AMOC is a major factor in decadal‐scale variability of North Atlantic climate. Article in Journal/Newspaper North Atlantic Maynooth University ePrints and eTheses Archive (National University of Ireland) |
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Open Polar |
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Maynooth University ePrints and eTheses Archive (National University of Ireland) |
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ftunivmaynooth |
language |
English |
description |
The Atlantic Meridional Overturning Circulation (AMOC) is responsible for a variable and climatically important northward transport of heat. Using data from an array of instruments that span the Atlantic at 26°N, we show that the AMOC has been in a state of reduced overturning since 2008 as compared to 2004–2008. This change of AMOC state is concurrent with other changes in the North Atlantic such as a northward shift and broadening of the Gulf Stream and altered patterns of heat content and sea surface temperature. These changes resemble the response to a declining AMOC predicted by coupled climate models. Concurrent changes in air‐sea fluxes close to the western boundary reveal that the changes in ocean heat transport and sea surface temperature have altered the pattern of ocean‐atmosphere heat exchange over the North Atlantic. These results provide strong observational evidence that the AMOC is a major factor in decadal‐scale variability of North Atlantic climate. |
format |
Article in Journal/Newspaper |
author |
Smeed, David A. Josey, S.A. Beaulieu, Claudie Johns, W.E. Moat, Ben I. Frajka-Williams, Eleanor Rayner, Darren Meinen, Christopher S. Baringer, Molly O. Bryden, Harry L. McCarthy, Gerard |
spellingShingle |
Smeed, David A. Josey, S.A. Beaulieu, Claudie Johns, W.E. Moat, Ben I. Frajka-Williams, Eleanor Rayner, Darren Meinen, Christopher S. Baringer, Molly O. Bryden, Harry L. McCarthy, Gerard The North Atlantic Ocean is in a state of reduced overturning |
author_facet |
Smeed, David A. Josey, S.A. Beaulieu, Claudie Johns, W.E. Moat, Ben I. Frajka-Williams, Eleanor Rayner, Darren Meinen, Christopher S. Baringer, Molly O. Bryden, Harry L. McCarthy, Gerard |
author_sort |
Smeed, David A. |
title |
The North Atlantic Ocean is in a state of reduced overturning |
title_short |
The North Atlantic Ocean is in a state of reduced overturning |
title_full |
The North Atlantic Ocean is in a state of reduced overturning |
title_fullStr |
The North Atlantic Ocean is in a state of reduced overturning |
title_full_unstemmed |
The North Atlantic Ocean is in a state of reduced overturning |
title_sort |
north atlantic ocean is in a state of reduced overturning |
publisher |
American Geophysical Union |
publishDate |
2018 |
url |
https://mural.maynoothuniversity.ie/12175/ https://mural.maynoothuniversity.ie/12175/1/McCarty_North_2018.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://mural.maynoothuniversity.ie/12175/1/McCarty_North_2018.pdf Smeed, David A. and Josey, S.A. and Beaulieu, Claudie and Johns, W.E. and Moat, Ben I. and Frajka-Williams, Eleanor and Rayner, Darren and Meinen, Christopher S. and Baringer, Molly O. and Bryden, Harry L. and McCarthy, Gerard (2018) The North Atlantic Ocean is in a state of reduced overturning. Geophysical Research Letters, 45 (3). pp. 1527-1533. ISSN 0094-8276 |
_version_ |
1797587655685308416 |