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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ftpubmed:oai:pubmedcentral.nih.gov:10468057 2023-10-01T03:52:09+02:00 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 2023-08-30 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10468057/ https://doi.org/10.1371/journal.pone.0290437 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10468057/ http://dx.doi.org/10.1371/journal.pone.0290437 © 2023 Vaideanu et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. PLoS One Research Article Text 2023 ftpubmed https://doi.org/10.1371/journal.pone.0290437 2023-09-03T01:30:49Z 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. Text Antarc* Antarctic Arctic North Atlantic North Atlantic oscillation Sea ice PubMed Central (PMC) Arctic Antarctic PLOS ONE 18 8 e0290437 |
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Research Article 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 |
topic_facet |
Research Article |
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. |
format |
Text |
author |
Vaideanu, Petru Stepanek, Christian Dima, Mihai Schrepfer, Jule Matos, Fernanda Ionita, Monica Lohmann, Gerrit |
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 |
publishDate |
2023 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10468057/ https://doi.org/10.1371/journal.pone.0290437 |
geographic |
Arctic Antarctic |
geographic_facet |
Arctic Antarctic |
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 |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10468057/ http://dx.doi.org/10.1371/journal.pone.0290437 |
op_rights |
© 2023 Vaideanu et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
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https://doi.org/10.1371/journal.pone.0290437 |
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