Seasonal sea-ice in the Arctic’s last ice area during the Early Holocene
According to climate models, the Lincoln Sea, bordering northern Greenland and Canada, will be the final stronghold of perennial Arctic sea-ice in a warming climate. However, recent observations of prolonged periods of open water raise concerns regarding its long-term stability. Modelling studies su...
Published in: | Communications Earth & Environment |
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Language: | English |
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2023
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Online Access: | https://pure.au.dk/portal/da/publications/seasonal-seaice-in-the-arctics-last-ice-area-during-the-early-holocene(df4750ff-d897-442e-8074-d6f1a0bc14fa).html https://doi.org/10.1038/s43247-023-00720-w http://www.scopus.com/inward/record.url?scp=85150922576&partnerID=8YFLogxK |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/df4750ff-d897-442e-8074-d6f1a0bc14fa 2023-12-31T10:03:06+01:00 Seasonal sea-ice in the Arctic’s last ice area during the Early Holocene Detlef, Henrieka O’Regan, Matt Stranne, Christian Jensen, Mads Mørk Glasius, Marianne Cronin, Thomas M. Jakobsson, Martin Pearce, Christof 2023-03 https://pure.au.dk/portal/da/publications/seasonal-seaice-in-the-arctics-last-ice-area-during-the-early-holocene(df4750ff-d897-442e-8074-d6f1a0bc14fa).html https://doi.org/10.1038/s43247-023-00720-w http://www.scopus.com/inward/record.url?scp=85150922576&partnerID=8YFLogxK eng eng https://pure.au.dk/portal/da/publications/seasonal-seaice-in-the-arctics-last-ice-area-during-the-early-holocene(df4750ff-d897-442e-8074-d6f1a0bc14fa).html info:eu-repo/semantics/openAccess Detlef , H , O’Regan , M , Stranne , C , Jensen , M M , Glasius , M , Cronin , T M , Jakobsson , M & Pearce , C 2023 , ' Seasonal sea-ice in the Arctic’s last ice area during the Early Holocene ' , Communications Earth & Environment , vol. 4 , no. 1 , 86 . https://doi.org/10.1038/s43247-023-00720-w article 2023 ftuniaarhuspubl https://doi.org/10.1038/s43247-023-00720-w 2023-12-07T00:06:09Z According to climate models, the Lincoln Sea, bordering northern Greenland and Canada, will be the final stronghold of perennial Arctic sea-ice in a warming climate. However, recent observations of prolonged periods of open water raise concerns regarding its long-term stability. Modelling studies suggest a transition from perennial to seasonal sea-ice during the Early Holocene, a period of elevated global temperatures around 10,000 years ago. Here we show marine proxy evidence for the disappearance of perennial sea-ice in the southern Lincoln Sea during the Early Holocene, which suggests a widespread transition to seasonal sea-ice in the Arctic Ocean. Seasonal sea-ice conditions were tightly coupled to regional atmospheric temperatures. In light of anthropogenic warming and Arctic amplification our results suggest an imminent transition to seasonal sea-ice in the southern Lincoln Sea, even if the global temperature rise is kept below a threshold of 2 °C compared to pre-industrial (1850–1900). Article in Journal/Newspaper Arctic Arctic Ocean Greenland Lincoln Sea Sea ice Aarhus University: Research Communications Earth & Environment 4 1 |
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Open Polar |
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Aarhus University: Research |
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ftuniaarhuspubl |
language |
English |
description |
According to climate models, the Lincoln Sea, bordering northern Greenland and Canada, will be the final stronghold of perennial Arctic sea-ice in a warming climate. However, recent observations of prolonged periods of open water raise concerns regarding its long-term stability. Modelling studies suggest a transition from perennial to seasonal sea-ice during the Early Holocene, a period of elevated global temperatures around 10,000 years ago. Here we show marine proxy evidence for the disappearance of perennial sea-ice in the southern Lincoln Sea during the Early Holocene, which suggests a widespread transition to seasonal sea-ice in the Arctic Ocean. Seasonal sea-ice conditions were tightly coupled to regional atmospheric temperatures. In light of anthropogenic warming and Arctic amplification our results suggest an imminent transition to seasonal sea-ice in the southern Lincoln Sea, even if the global temperature rise is kept below a threshold of 2 °C compared to pre-industrial (1850–1900). |
format |
Article in Journal/Newspaper |
author |
Detlef, Henrieka O’Regan, Matt Stranne, Christian Jensen, Mads Mørk Glasius, Marianne Cronin, Thomas M. Jakobsson, Martin Pearce, Christof |
spellingShingle |
Detlef, Henrieka O’Regan, Matt Stranne, Christian Jensen, Mads Mørk Glasius, Marianne Cronin, Thomas M. Jakobsson, Martin Pearce, Christof Seasonal sea-ice in the Arctic’s last ice area during the Early Holocene |
author_facet |
Detlef, Henrieka O’Regan, Matt Stranne, Christian Jensen, Mads Mørk Glasius, Marianne Cronin, Thomas M. Jakobsson, Martin Pearce, Christof |
author_sort |
Detlef, Henrieka |
title |
Seasonal sea-ice in the Arctic’s last ice area during the Early Holocene |
title_short |
Seasonal sea-ice in the Arctic’s last ice area during the Early Holocene |
title_full |
Seasonal sea-ice in the Arctic’s last ice area during the Early Holocene |
title_fullStr |
Seasonal sea-ice in the Arctic’s last ice area during the Early Holocene |
title_full_unstemmed |
Seasonal sea-ice in the Arctic’s last ice area during the Early Holocene |
title_sort |
seasonal sea-ice in the arctic’s last ice area during the early holocene |
publishDate |
2023 |
url |
https://pure.au.dk/portal/da/publications/seasonal-seaice-in-the-arctics-last-ice-area-during-the-early-holocene(df4750ff-d897-442e-8074-d6f1a0bc14fa).html https://doi.org/10.1038/s43247-023-00720-w http://www.scopus.com/inward/record.url?scp=85150922576&partnerID=8YFLogxK |
genre |
Arctic Arctic Ocean Greenland Lincoln Sea Sea ice |
genre_facet |
Arctic Arctic Ocean Greenland Lincoln Sea Sea ice |
op_source |
Detlef , H , O’Regan , M , Stranne , C , Jensen , M M , Glasius , M , Cronin , T M , Jakobsson , M & Pearce , C 2023 , ' Seasonal sea-ice in the Arctic’s last ice area during the Early Holocene ' , Communications Earth & Environment , vol. 4 , no. 1 , 86 . https://doi.org/10.1038/s43247-023-00720-w |
op_relation |
https://pure.au.dk/portal/da/publications/seasonal-seaice-in-the-arctics-last-ice-area-during-the-early-holocene(df4750ff-d897-442e-8074-d6f1a0bc14fa).html |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s43247-023-00720-w |
container_title |
Communications Earth & Environment |
container_volume |
4 |
container_issue |
1 |
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1786818014964875264 |