Sea ice and millennial-scale climate variability in the Nordic seas 90 kyr ago to present
In the light of rapidly diminishing sea ice cover in the Arctic during the present atmospheric warming, it is imperative to study the distribution of sea ice in the past in relation to rapid climate change. Here we focus on glacial millennial-scale climatic events (Dansgaard/Oeschger events) using t...
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Online Access: | https://archimer.ifremer.fr/doc/00496/60722/65265.pdf https://archimer.ifremer.fr/doc/00496/60722/65266.pdf https://doi.org/10.1038/ncomms12247 https://archimer.ifremer.fr/doc/00496/60722/ |
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ftarchimer:oai:archimer.ifremer.fr:60722 2023-05-15T15:04:18+02:00 Sea ice and millennial-scale climate variability in the Nordic seas 90 kyr ago to present Hoff, Ulrike Rasmussen, Tine L. Stein, Ruediger Ezat, Mohamed M. Fahl, Kirsten 2016-07 application/pdf https://archimer.ifremer.fr/doc/00496/60722/65265.pdf https://archimer.ifremer.fr/doc/00496/60722/65266.pdf https://doi.org/10.1038/ncomms12247 https://archimer.ifremer.fr/doc/00496/60722/ eng eng Nature Publishing Group https://archimer.ifremer.fr/doc/00496/60722/65265.pdf https://archimer.ifremer.fr/doc/00496/60722/65266.pdf doi:10.1038/ncomms12247 https://archimer.ifremer.fr/doc/00496/60722/ info:eu-repo/semantics/openAccess restricted use Nature Communications (2041-1723) (Nature Publishing Group), 2016-07 , Vol. 7 , N. 12247 , P. 10p. text Publication info:eu-repo/semantics/article 2016 ftarchimer https://doi.org/10.1038/ncomms12247 2021-09-23T20:32:46Z In the light of rapidly diminishing sea ice cover in the Arctic during the present atmospheric warming, it is imperative to study the distribution of sea ice in the past in relation to rapid climate change. Here we focus on glacial millennial-scale climatic events (Dansgaard/Oeschger events) using the sea ice proxy IP25 in combination with phytoplankton proxy data and quantification of diatom species in a record from the southeast Norwegian Sea. We demonstrate that expansion and retreat of sea ice varies consistently in pace with the rapid climate changes 90 kyr ago to present. Sea ice retreats abruptly at the start of warm interstadials, but spreads rapidly during cooling phases of the interstadials and becomes near perennial and perennial during cold stadials and Heinrich events, respectively. Low-salinity surface water and the sea ice edge spreads to the Greenland-Scotland Ridge, and during the largest Heinrich events, probably far into the Atlantic Ocean. Article in Journal/Newspaper Arctic Climate change Dansgaard-Oeschger events Greenland Greenland-Scotland Ridge Nordic Seas Norwegian Sea Phytoplankton Sea ice Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Arctic Greenland Norwegian Sea Nature Communications 7 1 |
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 |
description |
In the light of rapidly diminishing sea ice cover in the Arctic during the present atmospheric warming, it is imperative to study the distribution of sea ice in the past in relation to rapid climate change. Here we focus on glacial millennial-scale climatic events (Dansgaard/Oeschger events) using the sea ice proxy IP25 in combination with phytoplankton proxy data and quantification of diatom species in a record from the southeast Norwegian Sea. We demonstrate that expansion and retreat of sea ice varies consistently in pace with the rapid climate changes 90 kyr ago to present. Sea ice retreats abruptly at the start of warm interstadials, but spreads rapidly during cooling phases of the interstadials and becomes near perennial and perennial during cold stadials and Heinrich events, respectively. Low-salinity surface water and the sea ice edge spreads to the Greenland-Scotland Ridge, and during the largest Heinrich events, probably far into the Atlantic Ocean. |
format |
Article in Journal/Newspaper |
author |
Hoff, Ulrike Rasmussen, Tine L. Stein, Ruediger Ezat, Mohamed M. Fahl, Kirsten |
spellingShingle |
Hoff, Ulrike Rasmussen, Tine L. Stein, Ruediger Ezat, Mohamed M. Fahl, Kirsten Sea ice and millennial-scale climate variability in the Nordic seas 90 kyr ago to present |
author_facet |
Hoff, Ulrike Rasmussen, Tine L. Stein, Ruediger Ezat, Mohamed M. Fahl, Kirsten |
author_sort |
Hoff, Ulrike |
title |
Sea ice and millennial-scale climate variability in the Nordic seas 90 kyr ago to present |
title_short |
Sea ice and millennial-scale climate variability in the Nordic seas 90 kyr ago to present |
title_full |
Sea ice and millennial-scale climate variability in the Nordic seas 90 kyr ago to present |
title_fullStr |
Sea ice and millennial-scale climate variability in the Nordic seas 90 kyr ago to present |
title_full_unstemmed |
Sea ice and millennial-scale climate variability in the Nordic seas 90 kyr ago to present |
title_sort |
sea ice and millennial-scale climate variability in the nordic seas 90 kyr ago to present |
publisher |
Nature Publishing Group |
publishDate |
2016 |
url |
https://archimer.ifremer.fr/doc/00496/60722/65265.pdf https://archimer.ifremer.fr/doc/00496/60722/65266.pdf https://doi.org/10.1038/ncomms12247 https://archimer.ifremer.fr/doc/00496/60722/ |
geographic |
Arctic Greenland Norwegian Sea |
geographic_facet |
Arctic Greenland Norwegian Sea |
genre |
Arctic Climate change Dansgaard-Oeschger events Greenland Greenland-Scotland Ridge Nordic Seas Norwegian Sea Phytoplankton Sea ice |
genre_facet |
Arctic Climate change Dansgaard-Oeschger events Greenland Greenland-Scotland Ridge Nordic Seas Norwegian Sea Phytoplankton Sea ice |
op_source |
Nature Communications (2041-1723) (Nature Publishing Group), 2016-07 , Vol. 7 , N. 12247 , P. 10p. |
op_relation |
https://archimer.ifremer.fr/doc/00496/60722/65265.pdf https://archimer.ifremer.fr/doc/00496/60722/65266.pdf doi:10.1038/ncomms12247 https://archimer.ifremer.fr/doc/00496/60722/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1038/ncomms12247 |
container_title |
Nature Communications |
container_volume |
7 |
container_issue |
1 |
_version_ |
1766336092779315200 |