Annually resolved Atlantic sea surface temperature variability over the past 2,900 y
Global warming due to anthropogenic factors can be amplified or dampened by natural climate oscillations, especially those involving sea surface temperatures (SSTs) in the North Atlantic which vary on a multidecadal scale (Atlantic multidecadal variability, AMV). Because the instrumental record of A...
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ftunivgent:oai:archive.ugent.be:8761107 2023-09-26T15:14:25+02:00 Annually resolved Atlantic sea surface temperature variability over the past 2,900 y Lapointe, Francois Bradley, Raymond S. Francus, Pierre Balascio, Nicholas L. Abbott, Mark B. Stoner, Joseph S. St-Onge, Guillaume De Coninck, Arnaud Labarre, Thibault 2020 application/pdf https://biblio.ugent.be/publication/8761107 http://hdl.handle.net/1854/LU-8761107 https://doi.org/10.1073/pnas.2014166117 https://biblio.ugent.be/publication/8761107/file/8761108 eng eng https://biblio.ugent.be/publication/8761107 http://hdl.handle.net/1854/LU-8761107 http://dx.doi.org/10.1073/pnas.2014166117 https://biblio.ugent.be/publication/8761107/file/8761108 A specific license has been chosen by the rights holder. Get in touch with the rights holder for reuse rights. info:eu-repo/semantics/openAccess PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA ISSN: 0027-8424 Earth and Environmental Sciences SAHEL RAINFALL ICE-AGE CONFIGURATION RECORD Atlantic multidecadal variability Arctic climate global warming journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2020 ftunivgent https://doi.org/10.1073/pnas.2014166117 2023-08-30T22:07:07Z Global warming due to anthropogenic factors can be amplified or dampened by natural climate oscillations, especially those involving sea surface temperatures (SSTs) in the North Atlantic which vary on a multidecadal scale (Atlantic multidecadal variability, AMV). Because the instrumental record of AMV is short, long-term behavior of AMV is unknown, but climatic teleconnections to regions beyond the North Atlantic offer the prospect of reconstructing AMV from high-resolution records elsewhere. Annually resolved titanium from an annually laminated sedimentary record from Ellesmere Island, Canada, shows that the record is strongly influenced by AMV via atmospheric circulation anomalies. Significant correlations between this High-Arctic proxy and other highly resolved Atlantic SST proxies demonstrate that it shares the multidecadal variability seen in the Atlantic. Our record provides a reconstruction of AMV for the past similar to 3 millennia at an unprecedented time resolution, indicating North Atlantic SSTs were coldest from similar to 1400-1800 CE, while current SSTs are the warmest in the past similar to 2,900 y. Article in Journal/Newspaper Arctic Ellesmere Island Global warming North Atlantic Ghent University Academic Bibliography Arctic Ellesmere Island Canada Proceedings of the National Academy of Sciences 117 44 27171 27178 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Earth and Environmental Sciences SAHEL RAINFALL ICE-AGE CONFIGURATION RECORD Atlantic multidecadal variability Arctic climate global warming |
spellingShingle |
Earth and Environmental Sciences SAHEL RAINFALL ICE-AGE CONFIGURATION RECORD Atlantic multidecadal variability Arctic climate global warming Lapointe, Francois Bradley, Raymond S. Francus, Pierre Balascio, Nicholas L. Abbott, Mark B. Stoner, Joseph S. St-Onge, Guillaume De Coninck, Arnaud Labarre, Thibault Annually resolved Atlantic sea surface temperature variability over the past 2,900 y |
topic_facet |
Earth and Environmental Sciences SAHEL RAINFALL ICE-AGE CONFIGURATION RECORD Atlantic multidecadal variability Arctic climate global warming |
description |
Global warming due to anthropogenic factors can be amplified or dampened by natural climate oscillations, especially those involving sea surface temperatures (SSTs) in the North Atlantic which vary on a multidecadal scale (Atlantic multidecadal variability, AMV). Because the instrumental record of AMV is short, long-term behavior of AMV is unknown, but climatic teleconnections to regions beyond the North Atlantic offer the prospect of reconstructing AMV from high-resolution records elsewhere. Annually resolved titanium from an annually laminated sedimentary record from Ellesmere Island, Canada, shows that the record is strongly influenced by AMV via atmospheric circulation anomalies. Significant correlations between this High-Arctic proxy and other highly resolved Atlantic SST proxies demonstrate that it shares the multidecadal variability seen in the Atlantic. Our record provides a reconstruction of AMV for the past similar to 3 millennia at an unprecedented time resolution, indicating North Atlantic SSTs were coldest from similar to 1400-1800 CE, while current SSTs are the warmest in the past similar to 2,900 y. |
format |
Article in Journal/Newspaper |
author |
Lapointe, Francois Bradley, Raymond S. Francus, Pierre Balascio, Nicholas L. Abbott, Mark B. Stoner, Joseph S. St-Onge, Guillaume De Coninck, Arnaud Labarre, Thibault |
author_facet |
Lapointe, Francois Bradley, Raymond S. Francus, Pierre Balascio, Nicholas L. Abbott, Mark B. Stoner, Joseph S. St-Onge, Guillaume De Coninck, Arnaud Labarre, Thibault |
author_sort |
Lapointe, Francois |
title |
Annually resolved Atlantic sea surface temperature variability over the past 2,900 y |
title_short |
Annually resolved Atlantic sea surface temperature variability over the past 2,900 y |
title_full |
Annually resolved Atlantic sea surface temperature variability over the past 2,900 y |
title_fullStr |
Annually resolved Atlantic sea surface temperature variability over the past 2,900 y |
title_full_unstemmed |
Annually resolved Atlantic sea surface temperature variability over the past 2,900 y |
title_sort |
annually resolved atlantic sea surface temperature variability over the past 2,900 y |
publishDate |
2020 |
url |
https://biblio.ugent.be/publication/8761107 http://hdl.handle.net/1854/LU-8761107 https://doi.org/10.1073/pnas.2014166117 https://biblio.ugent.be/publication/8761107/file/8761108 |
geographic |
Arctic Ellesmere Island Canada |
geographic_facet |
Arctic Ellesmere Island Canada |
genre |
Arctic Ellesmere Island Global warming North Atlantic |
genre_facet |
Arctic Ellesmere Island Global warming North Atlantic |
op_source |
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA ISSN: 0027-8424 |
op_relation |
https://biblio.ugent.be/publication/8761107 http://hdl.handle.net/1854/LU-8761107 http://dx.doi.org/10.1073/pnas.2014166117 https://biblio.ugent.be/publication/8761107/file/8761108 |
op_rights |
A specific license has been chosen by the rights holder. Get in touch with the rights holder for reuse rights. info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1073/pnas.2014166117 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
117 |
container_issue |
44 |
container_start_page |
27171 |
op_container_end_page |
27178 |
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1778135241873948672 |