The Subpolar North Atlantic Ocean Heat Content Variability and its Decomposition
The Subpolar North Atlantic (SPNA) is one of the most important areas to global climate because its ocean heat content (OHC) is highly correlated with the Atlantic Meridional Overturning Circulation (AMOC), and its circulation strength affects the salt transport by the AMOC, which in turn feeds and...
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ftpubmed:oai:pubmedcentral.nih.gov:5653740 2023-05-15T17:28:20+02:00 The Subpolar North Atlantic Ocean Heat Content Variability and its Decomposition Zhang, Weiwei Yan, Xiao-Hai 2017-10-23 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5653740/ http://www.ncbi.nlm.nih.gov/pubmed/29062083 https://doi.org/10.1038/s41598-017-14158-6 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5653740/ http://www.ncbi.nlm.nih.gov/pubmed/29062083 http://dx.doi.org/10.1038/s41598-017-14158-6 © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. CC-BY Article Text 2017 ftpubmed https://doi.org/10.1038/s41598-017-14158-6 2017-10-29T00:18:46Z The Subpolar North Atlantic (SPNA) is one of the most important areas to global climate because its ocean heat content (OHC) is highly correlated with the Atlantic Meridional Overturning Circulation (AMOC), and its circulation strength affects the salt transport by the AMOC, which in turn feeds and sustains the strength of the AMOC. Moreover, the recent global surface warming “hiatus” may be attributed to the SPNA as one of the major planetary heat sinks. Although almost synchronized before 1996, the OHC has greater spatial disparities afterwards, which cannot be explained as driven by the North Atlantic Oscillation (NAO). Temperature decomposition reveals that the western SPNA OHC is mainly determined by the along isopycnal changes, while in the eastern SPNA along isopycnal changes and isopycnal undulation are both important. Further analysis indicates that heat flux dominates the western SPNA OHC, but in the eastern SPNA wind forcing affects the OHC significantly. It is worth noting that the along isopycnal OHC changes can also induce heaving, thus the observed heaving domination in global oceans cannot mask the extra heat in the ocean during the recent “hiatus”. Text North Atlantic North Atlantic oscillation PubMed Central (PMC) Scientific Reports 7 1 |
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Article Zhang, Weiwei Yan, Xiao-Hai The Subpolar North Atlantic Ocean Heat Content Variability and its Decomposition |
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The Subpolar North Atlantic (SPNA) is one of the most important areas to global climate because its ocean heat content (OHC) is highly correlated with the Atlantic Meridional Overturning Circulation (AMOC), and its circulation strength affects the salt transport by the AMOC, which in turn feeds and sustains the strength of the AMOC. Moreover, the recent global surface warming “hiatus” may be attributed to the SPNA as one of the major planetary heat sinks. Although almost synchronized before 1996, the OHC has greater spatial disparities afterwards, which cannot be explained as driven by the North Atlantic Oscillation (NAO). Temperature decomposition reveals that the western SPNA OHC is mainly determined by the along isopycnal changes, while in the eastern SPNA along isopycnal changes and isopycnal undulation are both important. Further analysis indicates that heat flux dominates the western SPNA OHC, but in the eastern SPNA wind forcing affects the OHC significantly. It is worth noting that the along isopycnal OHC changes can also induce heaving, thus the observed heaving domination in global oceans cannot mask the extra heat in the ocean during the recent “hiatus”. |
format |
Text |
author |
Zhang, Weiwei Yan, Xiao-Hai |
author_facet |
Zhang, Weiwei Yan, Xiao-Hai |
author_sort |
Zhang, Weiwei |
title |
The Subpolar North Atlantic Ocean Heat Content Variability and its Decomposition |
title_short |
The Subpolar North Atlantic Ocean Heat Content Variability and its Decomposition |
title_full |
The Subpolar North Atlantic Ocean Heat Content Variability and its Decomposition |
title_fullStr |
The Subpolar North Atlantic Ocean Heat Content Variability and its Decomposition |
title_full_unstemmed |
The Subpolar North Atlantic Ocean Heat Content Variability and its Decomposition |
title_sort |
subpolar north atlantic ocean heat content variability and its decomposition |
publisher |
Nature Publishing Group UK |
publishDate |
2017 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5653740/ http://www.ncbi.nlm.nih.gov/pubmed/29062083 https://doi.org/10.1038/s41598-017-14158-6 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5653740/ http://www.ncbi.nlm.nih.gov/pubmed/29062083 http://dx.doi.org/10.1038/s41598-017-14158-6 |
op_rights |
© The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
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https://doi.org/10.1038/s41598-017-14158-6 |
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