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://doi.org/10.1038/ncomms12247 https://archimer.ifremer.fr/doc/00496/60722/65265.pdf https://archimer.ifremer.fr/doc/00496/60722/65266.pdf https://archimer.ifremer.fr/doc/00496/60722/ |
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fttriple:oai:gotriple.eu:10670/1.tjojb9 2023-05-15T15:04:33+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 https://doi.org/10.1038/ncomms12247 https://archimer.ifremer.fr/doc/00496/60722/65265.pdf https://archimer.ifremer.fr/doc/00496/60722/65266.pdf https://archimer.ifremer.fr/doc/00496/60722/ en eng Nature Publishing Group doi:10.1038/ncomms12247 10670/1.tjojb9 https://archimer.ifremer.fr/doc/00496/60722/65265.pdf https://archimer.ifremer.fr/doc/00496/60722/65266.pdf https://archimer.ifremer.fr/doc/00496/60722/ other Archimer, archive institutionnelle de l'Ifremer Nature Communications (2041-1723) (Nature Publishing Group), 2016-07 , Vol. 7 , N. 12247 , P. 10p. envir geo Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ fttriple https://doi.org/10.1038/ncomms12247 2023-01-22T17:25:25Z 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. Text Arctic Climate change Dansgaard-Oeschger events Greenland Greenland-Scotland Ridge Nordic Seas Norwegian Sea Phytoplankton Sea ice Unknown Arctic Greenland Norwegian Sea Nature Communications 7 1 |
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envir geo 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 |
topic_facet |
envir geo |
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 |
Text |
author |
Hoff, Ulrike Rasmussen, Tine L. Stein, Ruediger Ezat, Mohamed M. Fahl, Kirsten |
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 |
url |
https://doi.org/10.1038/ncomms12247 https://archimer.ifremer.fr/doc/00496/60722/65265.pdf https://archimer.ifremer.fr/doc/00496/60722/65266.pdf 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 |
Archimer, archive institutionnelle de l'Ifremer Nature Communications (2041-1723) (Nature Publishing Group), 2016-07 , Vol. 7 , N. 12247 , P. 10p. |
op_relation |
doi:10.1038/ncomms12247 10670/1.tjojb9 https://archimer.ifremer.fr/doc/00496/60722/65265.pdf https://archimer.ifremer.fr/doc/00496/60722/65266.pdf https://archimer.ifremer.fr/doc/00496/60722/ |
op_rights |
other |
op_doi |
https://doi.org/10.1038/ncomms12247 |
container_title |
Nature Communications |
container_volume |
7 |
container_issue |
1 |
_version_ |
1766336306348032000 |