Worldwide consequences of a mid-Holocene cooling in the Nordic Seas
The Earth's climate, marked by long-term shifts and punctuated events, shapes terrestrial and marine ecosystems. Despite the present interglacial period's warmth and stability compared to preceding glaciations, the Holocene has witnessed significant cooling events with worldwide consequenc...
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ftarchimer:oai:archimer.ifremer.fr:97910 2024-01-14T10:05:45+01:00 Worldwide consequences of a mid-Holocene cooling in the Nordic Seas Telesiński, Maciej Liu, Wei Ren, Xianglin Zajączkowski, Marek 2023-11-10 application/pdf https://archimer.ifremer.fr/doc/00867/97910/107008.pdf https://doi.org/10.31223/X5JQ0M https://archimer.ifremer.fr/doc/00867/97910/ eng eng California Digital Library (CDL) https://archimer.ifremer.fr/doc/00867/97910/107008.pdf doi:10.31223/X5JQ0M https://archimer.ifremer.fr/doc/00867/97910/ info:eu-repo/semantics/openAccess restricted use EarthArXiv (California Digital Library (CDL)) In Press North Atlantic ocean circulation planktic foraminifera biomarkers abrupt changes East Asian monsoon text Article info:eu-repo/semantics/article 2023 ftarchimer https://doi.org/10.31223/X5JQ0M 2023-12-19T23:51:09Z The Earth's climate, marked by long-term shifts and punctuated events, shapes terrestrial and marine ecosystems. Despite the present interglacial period's warmth and stability compared to preceding glaciations, the Holocene has witnessed significant cooling events with worldwide consequences. Leveraging marine records from the Nordic Seas, we provide the first detailed account of a cooling event centered around 6.8 ka BP. Utilizing paleoceanographic proxies and advanced modelling, we unveil a distinct subsurface water cooling, associated with a stepwise increase in sea-ice cover in the eastern Fram Strait. Our findings emphasize the role of Greenland Sea deep convection onset and the subsequent westward shift in Atlantic Water flow, enabling sea-ice advection from the Barents Sea. The heightened sea-ice cover weakens Atlantic Water advection, perturbing overturning circulation in the eastern Nordic Seas. These perturbations propagate worldwide, affecting North Atlantic deep-water circulation, inducing widespread hemispheric cooling, shifting the Intertropical Convergence Zone southward, and weakening the East Asian monsoon. Incorporating rigorous modelling supports and augments proxy-based paleoreconstructions, underscoring sea-ice dynamics and ocean circulation's critical influence. This study highlights the potential for localized cooling events within ostensibly stable climatic intervals, underscoring the need to comprehend their mechanisms for precise climate predictions and informed policymaking toward a sustainable future. Article in Journal/Newspaper Barents Sea Fram Strait Greenland Greenland Sea Nordic Seas North Atlantic Deep Water North Atlantic Sea ice Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Barents Sea Greenland |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
North Atlantic ocean circulation planktic foraminifera biomarkers abrupt changes East Asian monsoon |
spellingShingle |
North Atlantic ocean circulation planktic foraminifera biomarkers abrupt changes East Asian monsoon Telesiński, Maciej Liu, Wei Ren, Xianglin Zajączkowski, Marek Worldwide consequences of a mid-Holocene cooling in the Nordic Seas |
topic_facet |
North Atlantic ocean circulation planktic foraminifera biomarkers abrupt changes East Asian monsoon |
description |
The Earth's climate, marked by long-term shifts and punctuated events, shapes terrestrial and marine ecosystems. Despite the present interglacial period's warmth and stability compared to preceding glaciations, the Holocene has witnessed significant cooling events with worldwide consequences. Leveraging marine records from the Nordic Seas, we provide the first detailed account of a cooling event centered around 6.8 ka BP. Utilizing paleoceanographic proxies and advanced modelling, we unveil a distinct subsurface water cooling, associated with a stepwise increase in sea-ice cover in the eastern Fram Strait. Our findings emphasize the role of Greenland Sea deep convection onset and the subsequent westward shift in Atlantic Water flow, enabling sea-ice advection from the Barents Sea. The heightened sea-ice cover weakens Atlantic Water advection, perturbing overturning circulation in the eastern Nordic Seas. These perturbations propagate worldwide, affecting North Atlantic deep-water circulation, inducing widespread hemispheric cooling, shifting the Intertropical Convergence Zone southward, and weakening the East Asian monsoon. Incorporating rigorous modelling supports and augments proxy-based paleoreconstructions, underscoring sea-ice dynamics and ocean circulation's critical influence. This study highlights the potential for localized cooling events within ostensibly stable climatic intervals, underscoring the need to comprehend their mechanisms for precise climate predictions and informed policymaking toward a sustainable future. |
format |
Article in Journal/Newspaper |
author |
Telesiński, Maciej Liu, Wei Ren, Xianglin Zajączkowski, Marek |
author_facet |
Telesiński, Maciej Liu, Wei Ren, Xianglin Zajączkowski, Marek |
author_sort |
Telesiński, Maciej |
title |
Worldwide consequences of a mid-Holocene cooling in the Nordic Seas |
title_short |
Worldwide consequences of a mid-Holocene cooling in the Nordic Seas |
title_full |
Worldwide consequences of a mid-Holocene cooling in the Nordic Seas |
title_fullStr |
Worldwide consequences of a mid-Holocene cooling in the Nordic Seas |
title_full_unstemmed |
Worldwide consequences of a mid-Holocene cooling in the Nordic Seas |
title_sort |
worldwide consequences of a mid-holocene cooling in the nordic seas |
publisher |
California Digital Library (CDL) |
publishDate |
2023 |
url |
https://archimer.ifremer.fr/doc/00867/97910/107008.pdf https://doi.org/10.31223/X5JQ0M https://archimer.ifremer.fr/doc/00867/97910/ |
geographic |
Barents Sea Greenland |
geographic_facet |
Barents Sea Greenland |
genre |
Barents Sea Fram Strait Greenland Greenland Sea Nordic Seas North Atlantic Deep Water North Atlantic Sea ice |
genre_facet |
Barents Sea Fram Strait Greenland Greenland Sea Nordic Seas North Atlantic Deep Water North Atlantic Sea ice |
op_source |
EarthArXiv (California Digital Library (CDL)) In Press |
op_relation |
https://archimer.ifremer.fr/doc/00867/97910/107008.pdf doi:10.31223/X5JQ0M https://archimer.ifremer.fr/doc/00867/97910/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.31223/X5JQ0M |
_version_ |
1788060083491438592 |