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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Online Access: | http://nora.nerc.ac.uk/id/eprint/519229/ https://nora.nerc.ac.uk/id/eprint/519229/7/Smeed_et_al-2018-Geophysical_Research_Letters.pdf https://doi.org/10.1002/2017GL076350 |
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ftnerc:oai:nora.nerc.ac.uk:519229 2023-05-15T17:26:19+02:00 The North Atlantic Ocean is in a state of reduced overturning Smeed, D.A. Josey, S.A. Beaulieu, C. Johns, W.E. Moat, B.I. Frajka-Williams, Eleanor Rayner, D. Meinen, C.S. Baringer, M.O. Bryden, H.L. McCarthy, G.D. 2018-02-26 text http://nora.nerc.ac.uk/id/eprint/519229/ https://nora.nerc.ac.uk/id/eprint/519229/7/Smeed_et_al-2018-Geophysical_Research_Letters.pdf https://doi.org/10.1002/2017GL076350 en eng https://nora.nerc.ac.uk/id/eprint/519229/7/Smeed_et_al-2018-Geophysical_Research_Letters.pdf Smeed, D.A. orcid:0000-0003-1740-1778 Josey, S.A. orcid:0000-0002-1683-8831 Beaulieu, C.; Johns, W.E.; Moat, B.I. orcid:0000-0001-8676-7779 Frajka-Williams, Eleanor orcid:0000-0001-8773-7838 Rayner, D. orcid:0000-0002-2283-4140 Meinen, C.S.; Baringer, M.O.; Bryden, H.L.; McCarthy, G.D. 2018 The North Atlantic Ocean is in a state of reduced overturning. Geophysical Research Letters, 45 (3). 1527-1533. https://doi.org/10.1002/2017GL076350 <https://doi.org/10.1002/2017GL076350> cc_by_4 CC-BY Publication - Article PeerReviewed 2018 ftnerc https://doi.org/10.1002/2017GL076350 2023-02-04T19:46:06Z 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 SST 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 Natural Environment Research Council: NERC Open Research Archive Geophysical Research Letters 45 3 1527 1533 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
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ftnerc |
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 SST 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, D.A. Josey, S.A. Beaulieu, C. Johns, W.E. Moat, B.I. Frajka-Williams, Eleanor Rayner, D. Meinen, C.S. Baringer, M.O. Bryden, H.L. McCarthy, G.D. |
spellingShingle |
Smeed, D.A. Josey, S.A. Beaulieu, C. Johns, W.E. Moat, B.I. Frajka-Williams, Eleanor Rayner, D. Meinen, C.S. Baringer, M.O. Bryden, H.L. McCarthy, G.D. The North Atlantic Ocean is in a state of reduced overturning |
author_facet |
Smeed, D.A. Josey, S.A. Beaulieu, C. Johns, W.E. Moat, B.I. Frajka-Williams, Eleanor Rayner, D. Meinen, C.S. Baringer, M.O. Bryden, H.L. McCarthy, G.D. |
author_sort |
Smeed, D.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 |
publishDate |
2018 |
url |
http://nora.nerc.ac.uk/id/eprint/519229/ https://nora.nerc.ac.uk/id/eprint/519229/7/Smeed_et_al-2018-Geophysical_Research_Letters.pdf https://doi.org/10.1002/2017GL076350 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://nora.nerc.ac.uk/id/eprint/519229/7/Smeed_et_al-2018-Geophysical_Research_Letters.pdf Smeed, D.A. orcid:0000-0003-1740-1778 Josey, S.A. orcid:0000-0002-1683-8831 Beaulieu, C.; Johns, W.E.; Moat, B.I. orcid:0000-0001-8676-7779 Frajka-Williams, Eleanor orcid:0000-0001-8773-7838 Rayner, D. orcid:0000-0002-2283-4140 Meinen, C.S.; Baringer, M.O.; Bryden, H.L.; McCarthy, G.D. 2018 The North Atlantic Ocean is in a state of reduced overturning. Geophysical Research Letters, 45 (3). 1527-1533. https://doi.org/10.1002/2017GL076350 <https://doi.org/10.1002/2017GL076350> |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1002/2017GL076350 |
container_title |
Geophysical Research Letters |
container_volume |
45 |
container_issue |
3 |
container_start_page |
1527 |
op_container_end_page |
1533 |
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1766117940755693568 |