Multiproxy sedimentary records from core MD99-2284 and LOVECLIM model simulations in the southern Norwegian Sea, 32-40 ka, supplement to: Sadatzki, Henrik; Dokken, Trond; Berben, Sarah M P; Muschitiello, Francesco; Stein, Ruediger; Fahl, Kirsten; Menviel, Laurie; Timmermann, Axel; Jansen, Eystein (2019): Sea ice variability in the southern Norwegian Sea during glacial Dansgaard-Oeschger climate cycles. Science Advances, 5(3), eaau6174
The last glacial period was marked by pronounced millennial-scale variability in ocean circulation and global climate. Shifts in the sea ice cover of the Nordic Seas are believed to have amplified the glacial climate variability between warm interstadials and cold stadials in northern high latitudes...
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ftdatacite:10.1594/pangaea.894970 2023-05-15T16:29:42+02:00 Multiproxy sedimentary records from core MD99-2284 and LOVECLIM model simulations in the southern Norwegian Sea, 32-40 ka, supplement to: Sadatzki, Henrik; Dokken, Trond; Berben, Sarah M P; Muschitiello, Francesco; Stein, Ruediger; Fahl, Kirsten; Menviel, Laurie; Timmermann, Axel; Jansen, Eystein (2019): Sea ice variability in the southern Norwegian Sea during glacial Dansgaard-Oeschger climate cycles. Science Advances, 5(3), eaau6174 Sadatzki, Henrik Dokken, Trond Berben, Sarah M P Muschitiello, Francesco Stein, Ruediger Fahl, Kirsten Menviel, Laurie Timmermann, Axel Jansen, Eystein 2018 application/zip https://dx.doi.org/10.1594/pangaea.894970 https://doi.pangaea.de/10.1594/PANGAEA.894970 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1126/sciadv.aau6174 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Calypso Corer MD114 Marion Dufresne 1995 article Supplementary Collection of Datasets Collection 2018 ftdatacite https://doi.org/10.1594/pangaea.894970 https://doi.org/10.1126/sciadv.aau6174 2022-02-09T13:37:10Z The last glacial period was marked by pronounced millennial-scale variability in ocean circulation and global climate. Shifts in the sea ice cover of the Nordic Seas are believed to have amplified the glacial climate variability between warm interstadials and cold stadials in northern high latitudes and contributed to abrupt, high-amplitude temperature changes over Greenland. Here we present unprecedented empirical evidence that resolves the nature, timing, and role of sea ice fluctuations for abrupt ocean and climate change 32–40 thousand years ago, using biomarker sea ice reconstructions from the southern Norwegian Sea. Our results document that initial sea ice reductions at the core site preceded the major reinvigoration of convective deep-water formation in the Nordic Seas and heat release to the atmosphere during interstadials. Sea ice expansions initiated quickly after atmospheric peak warmth and preceded the buildup of a deep oceanic heat reservoir through stadials. Our findings suggest that the glacial variability in northern sea ice cover was essential in regime shifts between surface stratification and deep convection in the Nordic Seas, thus forming an important feedback for large-scale oceanic reorganization during abrupt glacial climate changes. Article in Journal/Newspaper Greenland Nordic Seas Norwegian Sea Sea ice DataCite Metadata Store (German National Library of Science and Technology) Norwegian Sea Greenland Laurie ENVELOPE(-44.616,-44.616,-60.733,-60.733) Dokken ENVELOPE(23.777,23.777,80.235,80.235) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Calypso Corer MD114 Marion Dufresne 1995 |
spellingShingle |
Calypso Corer MD114 Marion Dufresne 1995 Sadatzki, Henrik Dokken, Trond Berben, Sarah M P Muschitiello, Francesco Stein, Ruediger Fahl, Kirsten Menviel, Laurie Timmermann, Axel Jansen, Eystein Multiproxy sedimentary records from core MD99-2284 and LOVECLIM model simulations in the southern Norwegian Sea, 32-40 ka, supplement to: Sadatzki, Henrik; Dokken, Trond; Berben, Sarah M P; Muschitiello, Francesco; Stein, Ruediger; Fahl, Kirsten; Menviel, Laurie; Timmermann, Axel; Jansen, Eystein (2019): Sea ice variability in the southern Norwegian Sea during glacial Dansgaard-Oeschger climate cycles. Science Advances, 5(3), eaau6174 |
topic_facet |
Calypso Corer MD114 Marion Dufresne 1995 |
description |
The last glacial period was marked by pronounced millennial-scale variability in ocean circulation and global climate. Shifts in the sea ice cover of the Nordic Seas are believed to have amplified the glacial climate variability between warm interstadials and cold stadials in northern high latitudes and contributed to abrupt, high-amplitude temperature changes over Greenland. Here we present unprecedented empirical evidence that resolves the nature, timing, and role of sea ice fluctuations for abrupt ocean and climate change 32–40 thousand years ago, using biomarker sea ice reconstructions from the southern Norwegian Sea. Our results document that initial sea ice reductions at the core site preceded the major reinvigoration of convective deep-water formation in the Nordic Seas and heat release to the atmosphere during interstadials. Sea ice expansions initiated quickly after atmospheric peak warmth and preceded the buildup of a deep oceanic heat reservoir through stadials. Our findings suggest that the glacial variability in northern sea ice cover was essential in regime shifts between surface stratification and deep convection in the Nordic Seas, thus forming an important feedback for large-scale oceanic reorganization during abrupt glacial climate changes. |
format |
Article in Journal/Newspaper |
author |
Sadatzki, Henrik Dokken, Trond Berben, Sarah M P Muschitiello, Francesco Stein, Ruediger Fahl, Kirsten Menviel, Laurie Timmermann, Axel Jansen, Eystein |
author_facet |
Sadatzki, Henrik Dokken, Trond Berben, Sarah M P Muschitiello, Francesco Stein, Ruediger Fahl, Kirsten Menviel, Laurie Timmermann, Axel Jansen, Eystein |
author_sort |
Sadatzki, Henrik |
title |
Multiproxy sedimentary records from core MD99-2284 and LOVECLIM model simulations in the southern Norwegian Sea, 32-40 ka, supplement to: Sadatzki, Henrik; Dokken, Trond; Berben, Sarah M P; Muschitiello, Francesco; Stein, Ruediger; Fahl, Kirsten; Menviel, Laurie; Timmermann, Axel; Jansen, Eystein (2019): Sea ice variability in the southern Norwegian Sea during glacial Dansgaard-Oeschger climate cycles. Science Advances, 5(3), eaau6174 |
title_short |
Multiproxy sedimentary records from core MD99-2284 and LOVECLIM model simulations in the southern Norwegian Sea, 32-40 ka, supplement to: Sadatzki, Henrik; Dokken, Trond; Berben, Sarah M P; Muschitiello, Francesco; Stein, Ruediger; Fahl, Kirsten; Menviel, Laurie; Timmermann, Axel; Jansen, Eystein (2019): Sea ice variability in the southern Norwegian Sea during glacial Dansgaard-Oeschger climate cycles. Science Advances, 5(3), eaau6174 |
title_full |
Multiproxy sedimentary records from core MD99-2284 and LOVECLIM model simulations in the southern Norwegian Sea, 32-40 ka, supplement to: Sadatzki, Henrik; Dokken, Trond; Berben, Sarah M P; Muschitiello, Francesco; Stein, Ruediger; Fahl, Kirsten; Menviel, Laurie; Timmermann, Axel; Jansen, Eystein (2019): Sea ice variability in the southern Norwegian Sea during glacial Dansgaard-Oeschger climate cycles. Science Advances, 5(3), eaau6174 |
title_fullStr |
Multiproxy sedimentary records from core MD99-2284 and LOVECLIM model simulations in the southern Norwegian Sea, 32-40 ka, supplement to: Sadatzki, Henrik; Dokken, Trond; Berben, Sarah M P; Muschitiello, Francesco; Stein, Ruediger; Fahl, Kirsten; Menviel, Laurie; Timmermann, Axel; Jansen, Eystein (2019): Sea ice variability in the southern Norwegian Sea during glacial Dansgaard-Oeschger climate cycles. Science Advances, 5(3), eaau6174 |
title_full_unstemmed |
Multiproxy sedimentary records from core MD99-2284 and LOVECLIM model simulations in the southern Norwegian Sea, 32-40 ka, supplement to: Sadatzki, Henrik; Dokken, Trond; Berben, Sarah M P; Muschitiello, Francesco; Stein, Ruediger; Fahl, Kirsten; Menviel, Laurie; Timmermann, Axel; Jansen, Eystein (2019): Sea ice variability in the southern Norwegian Sea during glacial Dansgaard-Oeschger climate cycles. Science Advances, 5(3), eaau6174 |
title_sort |
multiproxy sedimentary records from core md99-2284 and loveclim model simulations in the southern norwegian sea, 32-40 ka, supplement to: sadatzki, henrik; dokken, trond; berben, sarah m p; muschitiello, francesco; stein, ruediger; fahl, kirsten; menviel, laurie; timmermann, axel; jansen, eystein (2019): sea ice variability in the southern norwegian sea during glacial dansgaard-oeschger climate cycles. science advances, 5(3), eaau6174 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2018 |
url |
https://dx.doi.org/10.1594/pangaea.894970 https://doi.pangaea.de/10.1594/PANGAEA.894970 |
long_lat |
ENVELOPE(-44.616,-44.616,-60.733,-60.733) ENVELOPE(23.777,23.777,80.235,80.235) |
geographic |
Norwegian Sea Greenland Laurie Dokken |
geographic_facet |
Norwegian Sea Greenland Laurie Dokken |
genre |
Greenland Nordic Seas Norwegian Sea Sea ice |
genre_facet |
Greenland Nordic Seas Norwegian Sea Sea ice |
op_relation |
https://dx.doi.org/10.1126/sciadv.aau6174 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.894970 https://doi.org/10.1126/sciadv.aau6174 |
_version_ |
1766019407777103872 |