Large-scale sea ice–Surface temperature variability linked to Atlantic meridional overturning circulation
Due to its involvement in numerous feedbacks, sea ice plays a crucial role not only for polar climate but also at global scale. We analyse state-of-the-art observed, reconstructed, and modelled sea-ice concentration (SIC) together with sea surface temperature (SST) to disentangle the influence of di...
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Online Access: | http://dx.doi.org/10.1371/journal.pone.0290437 https://dx.plos.org/10.1371/journal.pone.0290437 |
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crplos:10.1371/journal.pone.0290437 2024-05-19T07:31:18+00:00 Large-scale sea ice–Surface temperature variability linked to Atlantic meridional overturning circulation Vaideanu, Petru Stepanek, Christian Dima, Mihai Schrepfer, Jule Matos, Fernanda Ionita, Monica Lohmann, Gerrit Ummenhofer, Caroline Alfred Wegener Institute for Polar and Marine Research Alfred Wegener Institute for Polar and Marine Research Alfred Wegener Institute for Polar and Marine Research Alfred Wegener Institute for Polar and Marine Research Alfred Wegener Institute for Polar and Marine Research Romanian UEFISCDI Romanian UEFISCDI Helmholtz Information & Data Science Academy German Federal Ministry of Education and Research Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung 2023 http://dx.doi.org/10.1371/journal.pone.0290437 https://dx.plos.org/10.1371/journal.pone.0290437 en eng Public Library of Science (PLoS) http://creativecommons.org/licenses/by/4.0/ PLOS ONE volume 18, issue 8, page e0290437 ISSN 1932-6203 journal-article 2023 crplos https://doi.org/10.1371/journal.pone.0290437 2024-05-01T07:02:05Z Due to its involvement in numerous feedbacks, sea ice plays a crucial role not only for polar climate but also at global scale. We analyse state-of-the-art observed, reconstructed, and modelled sea-ice concentration (SIC) together with sea surface temperature (SST) to disentangle the influence of different forcing factors on the variability of these coupled fields. Canonical Correlation Analysis provides distinct pairs of coupled Arctic SIC–Atlantic SST variability which are linked to prominent oceanic and atmospheric modes of variability over the period 1854–2017. The first pair captures the behaviour of the Atlantic meridional overturning circulation (AMOC) while the third and can be associated with the North Atlantic Oscillation (NAO) in a physically consistent manner. The dominant global SIC–Atlantic SST coupled mode highlights the contrast between the responses of Arctic and Antarctic sea ice to changes in AMOC over the 1959–2021 period. Model results indicate that coupled SST–SIC patterns can be associated with changes in ocean circulation. We conclude that a correct representation of AMOC-induced coupled SST–SIC variability in climate models is essential to understand the past, present and future sea-ice evolution. Article in Journal/Newspaper Antarc* Antarctic Arctic North Atlantic North Atlantic oscillation Sea ice PLOS PLOS ONE 18 8 e0290437 |
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Open Polar |
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language |
English |
description |
Due to its involvement in numerous feedbacks, sea ice plays a crucial role not only for polar climate but also at global scale. We analyse state-of-the-art observed, reconstructed, and modelled sea-ice concentration (SIC) together with sea surface temperature (SST) to disentangle the influence of different forcing factors on the variability of these coupled fields. Canonical Correlation Analysis provides distinct pairs of coupled Arctic SIC–Atlantic SST variability which are linked to prominent oceanic and atmospheric modes of variability over the period 1854–2017. The first pair captures the behaviour of the Atlantic meridional overturning circulation (AMOC) while the third and can be associated with the North Atlantic Oscillation (NAO) in a physically consistent manner. The dominant global SIC–Atlantic SST coupled mode highlights the contrast between the responses of Arctic and Antarctic sea ice to changes in AMOC over the 1959–2021 period. Model results indicate that coupled SST–SIC patterns can be associated with changes in ocean circulation. We conclude that a correct representation of AMOC-induced coupled SST–SIC variability in climate models is essential to understand the past, present and future sea-ice evolution. |
author2 |
Ummenhofer, Caroline Alfred Wegener Institute for Polar and Marine Research Alfred Wegener Institute for Polar and Marine Research Alfred Wegener Institute for Polar and Marine Research Alfred Wegener Institute for Polar and Marine Research Alfred Wegener Institute for Polar and Marine Research Romanian UEFISCDI Romanian UEFISCDI Helmholtz Information & Data Science Academy German Federal Ministry of Education and Research Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung |
format |
Article in Journal/Newspaper |
author |
Vaideanu, Petru Stepanek, Christian Dima, Mihai Schrepfer, Jule Matos, Fernanda Ionita, Monica Lohmann, Gerrit |
spellingShingle |
Vaideanu, Petru Stepanek, Christian Dima, Mihai Schrepfer, Jule Matos, Fernanda Ionita, Monica Lohmann, Gerrit Large-scale sea ice–Surface temperature variability linked to Atlantic meridional overturning circulation |
author_facet |
Vaideanu, Petru Stepanek, Christian Dima, Mihai Schrepfer, Jule Matos, Fernanda Ionita, Monica Lohmann, Gerrit |
author_sort |
Vaideanu, Petru |
title |
Large-scale sea ice–Surface temperature variability linked to Atlantic meridional overturning circulation |
title_short |
Large-scale sea ice–Surface temperature variability linked to Atlantic meridional overturning circulation |
title_full |
Large-scale sea ice–Surface temperature variability linked to Atlantic meridional overturning circulation |
title_fullStr |
Large-scale sea ice–Surface temperature variability linked to Atlantic meridional overturning circulation |
title_full_unstemmed |
Large-scale sea ice–Surface temperature variability linked to Atlantic meridional overturning circulation |
title_sort |
large-scale sea ice–surface temperature variability linked to atlantic meridional overturning circulation |
publisher |
Public Library of Science (PLoS) |
publishDate |
2023 |
url |
http://dx.doi.org/10.1371/journal.pone.0290437 https://dx.plos.org/10.1371/journal.pone.0290437 |
genre |
Antarc* Antarctic Arctic North Atlantic North Atlantic oscillation Sea ice |
genre_facet |
Antarc* Antarctic Arctic North Atlantic North Atlantic oscillation Sea ice |
op_source |
PLOS ONE volume 18, issue 8, page e0290437 ISSN 1932-6203 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1371/journal.pone.0290437 |
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PLOS ONE |
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18 |
container_issue |
8 |
container_start_page |
e0290437 |
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1799469140319141888 |