Sea ice and millennial-scale climate variability in the Nordic seas 90 kyr ago to present
n 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 th...
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Online Access: | https://epic.awi.de/id/eprint/41428/ https://hdl.handle.net/10013/epic.48337 |
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ftawi:oai:epic.awi.de:41428 2023-05-15T15:04:09+02:00 Sea ice and millennial-scale climate variability in the Nordic seas 90 kyr ago to present Hoff, Ukrike Rasmussen, Tine Lander Stein, Rüdiger Ezat, Mohamed M. Fahl, Kirsten 2016-07-26 https://epic.awi.de/id/eprint/41428/ https://hdl.handle.net/10013/epic.48337 unknown Hoff, U. , Rasmussen, T. L. , Stein, R. orcid:0000-0002-4453-9564 , Ezat, M. M. and Fahl, K. orcid:0000-0001-9317-4656 (2016) Sea ice and millennial-scale climate variability in the Nordic seas 90 kyr ago to present , Nature Communication, p. 12247 . doi:10.1038/ncomms12247 <https://doi.org/10.1038/ncomms12247> , hdl:10013/epic.48337 EPIC3Nature Communication, pp. 12247 Article isiRev 2016 ftawi https://doi.org/10.1038/ncomms12247 2021-12-24T15:41:46Z n 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 Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Greenland Norwegian Sea Nature Communications 7 1 |
institution |
Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
n 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, Ukrike Rasmussen, Tine Lander Stein, Rüdiger Ezat, Mohamed M. Fahl, Kirsten |
spellingShingle |
Hoff, Ukrike Rasmussen, Tine Lander Stein, Rüdiger Ezat, Mohamed M. Fahl, Kirsten Sea ice and millennial-scale climate variability in the Nordic seas 90 kyr ago to present |
author_facet |
Hoff, Ukrike Rasmussen, Tine Lander Stein, Rüdiger Ezat, Mohamed M. Fahl, Kirsten |
author_sort |
Hoff, Ukrike |
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 |
publishDate |
2016 |
url |
https://epic.awi.de/id/eprint/41428/ https://hdl.handle.net/10013/epic.48337 |
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 |
EPIC3Nature Communication, pp. 12247 |
op_relation |
Hoff, U. , Rasmussen, T. L. , Stein, R. orcid:0000-0002-4453-9564 , Ezat, M. M. and Fahl, K. orcid:0000-0001-9317-4656 (2016) Sea ice and millennial-scale climate variability in the Nordic seas 90 kyr ago to present , Nature Communication, p. 12247 . doi:10.1038/ncomms12247 <https://doi.org/10.1038/ncomms12247> , hdl:10013/epic.48337 |
op_doi |
https://doi.org/10.1038/ncomms12247 |
container_title |
Nature Communications |
container_volume |
7 |
container_issue |
1 |
_version_ |
1766335967445123072 |