Ocean circulation causes the largest freshening event for 120 years in eastern subpolar North Atlantic
The Atlantic Ocean overturning circulation is important to the climate system because it carries heat and carbon northward, and from the surface to the deep ocean. The high salinity of the subpolar North Atlantic is a prerequisite for overturning circulation, and strong freshening could herald a slo...
Published in: | Nature Communications |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2020
|
Subjects: | |
Online Access: | https://pure.uhi.ac.uk/en/publications/cc1f9f9f-5384-40dc-a445-4f2d693f5343 https://doi.org/10.1038/s41467-020-14474-y https://pureadmin.uhi.ac.uk/ws/files/7968144/s41467_020_14474_y.pdf http://www.nature.com/articles/s41467-020-14474-y |
id |
ftuhipublicatio:oai:pure.atira.dk:publications/cc1f9f9f-5384-40dc-a445-4f2d693f5343 |
---|---|
record_format |
openpolar |
spelling |
ftuhipublicatio:oai:pure.atira.dk:publications/cc1f9f9f-5384-40dc-a445-4f2d693f5343 2024-09-15T18:20:40+00:00 Ocean circulation causes the largest freshening event for 120 years in eastern subpolar North Atlantic Holliday, N. Penny Bersch, Manfred Berx, Barbara Chafik, Léon Cunningham, Stuart Florindo-lópez, Cristian Hátún, Hjálmar Johns, William Josey, Simon A. Larsen, Karin Margretha H. Mulet, Sandrine Oltmanns, Marilena Reverdin, Gilles Rossby, Tom Thierry, Virginie Valdimarsson, Hedinn Yashayaev, Igor 2020-01-29 application/pdf https://pure.uhi.ac.uk/en/publications/cc1f9f9f-5384-40dc-a445-4f2d693f5343 https://doi.org/10.1038/s41467-020-14474-y https://pureadmin.uhi.ac.uk/ws/files/7968144/s41467_020_14474_y.pdf http://www.nature.com/articles/s41467-020-14474-y eng eng https://pure.uhi.ac.uk/en/publications/cc1f9f9f-5384-40dc-a445-4f2d693f5343 info:eu-repo/semantics/openAccess Holliday , N P , Bersch , M , Berx , B , Chafik , L , Cunningham , S , Florindo-lópez , C , Hátún , H , Johns , W , Josey , S A , Larsen , K M H , Mulet , S , Oltmanns , M , Reverdin , G , Rossby , T , Thierry , V , Valdimarsson , H & Yashayaev , I 2020 , ' Ocean circulation causes the largest freshening event for 120 years in eastern subpolar North Atlantic ' , Nature Communications , vol. 11 , no. 1 . https://doi.org/10.1038/s41467-020-14474-y Climate sciences Ocean sciences Physical oceanography article 2020 ftuhipublicatio https://doi.org/10.1038/s41467-020-14474-y 2024-07-22T23:37:24Z The Atlantic Ocean overturning circulation is important to the climate system because it carries heat and carbon northward, and from the surface to the deep ocean. The high salinity of the subpolar North Atlantic is a prerequisite for overturning circulation, and strong freshening could herald a slowdown. We show that the eastern subpolar North Atlantic underwent extreme freshening during 2012 to 2016, with a magnitude never seen before in 120 years of measurements. The cause was unusual winter wind patterns driving major changes in ocean circulation, including slowing of the North Atlantic Current and diversion of Arctic freshwater from the western boundary into the eastern basins. We find that wind-driven routing of Arctic-origin freshwater intimately links conditions on the North West Atlantic shelf and slope region with the eastern subpolar basins. This reveals the importance of atmospheric forcing of intra-basin circulation in determining the salinity of the subpolar North Atlantic. Article in Journal/Newspaper north atlantic current North Atlantic North West Atlantic University of the Highlands and Islands: Research Database of UHI Nature Communications 11 1 |
institution |
Open Polar |
collection |
University of the Highlands and Islands: Research Database of UHI |
op_collection_id |
ftuhipublicatio |
language |
English |
topic |
Climate sciences Ocean sciences Physical oceanography |
spellingShingle |
Climate sciences Ocean sciences Physical oceanography Holliday, N. Penny Bersch, Manfred Berx, Barbara Chafik, Léon Cunningham, Stuart Florindo-lópez, Cristian Hátún, Hjálmar Johns, William Josey, Simon A. Larsen, Karin Margretha H. Mulet, Sandrine Oltmanns, Marilena Reverdin, Gilles Rossby, Tom Thierry, Virginie Valdimarsson, Hedinn Yashayaev, Igor Ocean circulation causes the largest freshening event for 120 years in eastern subpolar North Atlantic |
topic_facet |
Climate sciences Ocean sciences Physical oceanography |
description |
The Atlantic Ocean overturning circulation is important to the climate system because it carries heat and carbon northward, and from the surface to the deep ocean. The high salinity of the subpolar North Atlantic is a prerequisite for overturning circulation, and strong freshening could herald a slowdown. We show that the eastern subpolar North Atlantic underwent extreme freshening during 2012 to 2016, with a magnitude never seen before in 120 years of measurements. The cause was unusual winter wind patterns driving major changes in ocean circulation, including slowing of the North Atlantic Current and diversion of Arctic freshwater from the western boundary into the eastern basins. We find that wind-driven routing of Arctic-origin freshwater intimately links conditions on the North West Atlantic shelf and slope region with the eastern subpolar basins. This reveals the importance of atmospheric forcing of intra-basin circulation in determining the salinity of the subpolar North Atlantic. |
format |
Article in Journal/Newspaper |
author |
Holliday, N. Penny Bersch, Manfred Berx, Barbara Chafik, Léon Cunningham, Stuart Florindo-lópez, Cristian Hátún, Hjálmar Johns, William Josey, Simon A. Larsen, Karin Margretha H. Mulet, Sandrine Oltmanns, Marilena Reverdin, Gilles Rossby, Tom Thierry, Virginie Valdimarsson, Hedinn Yashayaev, Igor |
author_facet |
Holliday, N. Penny Bersch, Manfred Berx, Barbara Chafik, Léon Cunningham, Stuart Florindo-lópez, Cristian Hátún, Hjálmar Johns, William Josey, Simon A. Larsen, Karin Margretha H. Mulet, Sandrine Oltmanns, Marilena Reverdin, Gilles Rossby, Tom Thierry, Virginie Valdimarsson, Hedinn Yashayaev, Igor |
author_sort |
Holliday, N. Penny |
title |
Ocean circulation causes the largest freshening event for 120 years in eastern subpolar North Atlantic |
title_short |
Ocean circulation causes the largest freshening event for 120 years in eastern subpolar North Atlantic |
title_full |
Ocean circulation causes the largest freshening event for 120 years in eastern subpolar North Atlantic |
title_fullStr |
Ocean circulation causes the largest freshening event for 120 years in eastern subpolar North Atlantic |
title_full_unstemmed |
Ocean circulation causes the largest freshening event for 120 years in eastern subpolar North Atlantic |
title_sort |
ocean circulation causes the largest freshening event for 120 years in eastern subpolar north atlantic |
publishDate |
2020 |
url |
https://pure.uhi.ac.uk/en/publications/cc1f9f9f-5384-40dc-a445-4f2d693f5343 https://doi.org/10.1038/s41467-020-14474-y https://pureadmin.uhi.ac.uk/ws/files/7968144/s41467_020_14474_y.pdf http://www.nature.com/articles/s41467-020-14474-y |
genre |
north atlantic current North Atlantic North West Atlantic |
genre_facet |
north atlantic current North Atlantic North West Atlantic |
op_source |
Holliday , N P , Bersch , M , Berx , B , Chafik , L , Cunningham , S , Florindo-lópez , C , Hátún , H , Johns , W , Josey , S A , Larsen , K M H , Mulet , S , Oltmanns , M , Reverdin , G , Rossby , T , Thierry , V , Valdimarsson , H & Yashayaev , I 2020 , ' Ocean circulation causes the largest freshening event for 120 years in eastern subpolar North Atlantic ' , Nature Communications , vol. 11 , no. 1 . https://doi.org/10.1038/s41467-020-14474-y |
op_relation |
https://pure.uhi.ac.uk/en/publications/cc1f9f9f-5384-40dc-a445-4f2d693f5343 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s41467-020-14474-y |
container_title |
Nature Communications |
container_volume |
11 |
container_issue |
1 |
_version_ |
1810459056043720704 |