Caribbean salinity anomalies contributed to variable North Atlantic circulation and climate during the Common Era
Paleoceanographic reconstructions show that the strength of North Atlantic currents decreased during the Little Ice Age. In contrast, the role of ocean circulation in climate regulation during earlier historical epochs of the Common Era (C.E.) remains unclear. Here, we reconstruct sea surface temper...
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American Association for the Advancement of Science (AAAS)
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Online Access: | http://dx.doi.org/10.1126/sciadv.adg2639 https://www.science.org/doi/pdf/10.1126/sciadv.adg2639 |
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craaas:10.1126/sciadv.adg2639 2024-06-09T07:47:58+00:00 Caribbean salinity anomalies contributed to variable North Atlantic circulation and climate during the Common Era Zhuravleva, Anastasia Bauch, Henning A. Mohtadi, Mahyar Fahl, Kirsten Kienast, Markus 2023 http://dx.doi.org/10.1126/sciadv.adg2639 https://www.science.org/doi/pdf/10.1126/sciadv.adg2639 en eng American Association for the Advancement of Science (AAAS) Science Advances volume 9, issue 44 ISSN 2375-2548 journal-article 2023 craaas https://doi.org/10.1126/sciadv.adg2639 2024-05-16T12:53:46Z Paleoceanographic reconstructions show that the strength of North Atlantic currents decreased during the Little Ice Age. In contrast, the role of ocean circulation in climate regulation during earlier historical epochs of the Common Era (C.E.) remains unclear. Here, we reconstruct sea surface temperature (SST) and salinity in the Caribbean Basin for the past 1700 years using the isotopic and elemental composition of planktic foraminifera tests. Centennial-scale SST and salinity variations in the Caribbean co-occur with (hydro)climate changes in the Northern Hemisphere and are linked to a North Atlantic SST forcing. Cold phases around 600, 800, and 1400 to 1600 C.E. are characterized by Caribbean salinification and Gulf of Mexico freshening that implies reductions in the strength of North Atlantic surface circulation. We suggest that the associated changes in the meridional salt advection contributed to the historical climate variability of the C.E. Article in Journal/Newspaper North Atlantic AAAS Resource Center (American Association for the Advancement of Science) Science Advances 9 44 |
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Open Polar |
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AAAS Resource Center (American Association for the Advancement of Science) |
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craaas |
language |
English |
description |
Paleoceanographic reconstructions show that the strength of North Atlantic currents decreased during the Little Ice Age. In contrast, the role of ocean circulation in climate regulation during earlier historical epochs of the Common Era (C.E.) remains unclear. Here, we reconstruct sea surface temperature (SST) and salinity in the Caribbean Basin for the past 1700 years using the isotopic and elemental composition of planktic foraminifera tests. Centennial-scale SST and salinity variations in the Caribbean co-occur with (hydro)climate changes in the Northern Hemisphere and are linked to a North Atlantic SST forcing. Cold phases around 600, 800, and 1400 to 1600 C.E. are characterized by Caribbean salinification and Gulf of Mexico freshening that implies reductions in the strength of North Atlantic surface circulation. We suggest that the associated changes in the meridional salt advection contributed to the historical climate variability of the C.E. |
format |
Article in Journal/Newspaper |
author |
Zhuravleva, Anastasia Bauch, Henning A. Mohtadi, Mahyar Fahl, Kirsten Kienast, Markus |
spellingShingle |
Zhuravleva, Anastasia Bauch, Henning A. Mohtadi, Mahyar Fahl, Kirsten Kienast, Markus Caribbean salinity anomalies contributed to variable North Atlantic circulation and climate during the Common Era |
author_facet |
Zhuravleva, Anastasia Bauch, Henning A. Mohtadi, Mahyar Fahl, Kirsten Kienast, Markus |
author_sort |
Zhuravleva, Anastasia |
title |
Caribbean salinity anomalies contributed to variable North Atlantic circulation and climate during the Common Era |
title_short |
Caribbean salinity anomalies contributed to variable North Atlantic circulation and climate during the Common Era |
title_full |
Caribbean salinity anomalies contributed to variable North Atlantic circulation and climate during the Common Era |
title_fullStr |
Caribbean salinity anomalies contributed to variable North Atlantic circulation and climate during the Common Era |
title_full_unstemmed |
Caribbean salinity anomalies contributed to variable North Atlantic circulation and climate during the Common Era |
title_sort |
caribbean salinity anomalies contributed to variable north atlantic circulation and climate during the common era |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
2023 |
url |
http://dx.doi.org/10.1126/sciadv.adg2639 https://www.science.org/doi/pdf/10.1126/sciadv.adg2639 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Science Advances volume 9, issue 44 ISSN 2375-2548 |
op_doi |
https://doi.org/10.1126/sciadv.adg2639 |
container_title |
Science Advances |
container_volume |
9 |
container_issue |
44 |
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1801379478921805824 |