Sea ice-ocean coupling during Heinrich Stadials in the Atlantic–Arctic gateway
The variability of Arctic sea-ice during abrupt stadial-interstadial shifts in the last glacial period remain poorly understood. Here, we investigated the millennial-scale relationship, with a focus on Heinrich Stadials (HS), between sea-ice cover and bottom water temperature (BWT) during Marine Iso...
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Springer Science and Business Media LLC
2024
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Online Access: | https://archimer.ifremer.fr/doc/00872/98344/107697.pdf https://archimer.ifremer.fr/doc/00872/98344/107698.docx https://doi.org/10.1038/s41598-024-51532-7 https://archimer.ifremer.fr/doc/00872/98344/ |
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ftarchimer:oai:archimer.ifremer.fr:98344 2024-04-21T07:56:35+00:00 Sea ice-ocean coupling during Heinrich Stadials in the Atlantic–Arctic gateway El Bani Altuna, Naima Ezat, Mohamed M. Smik, Lukas Muschitiello, Francesco Belt, Simon T. Knies, Jochen Rasmussen, Tine L. 2024-01 application/pdf https://archimer.ifremer.fr/doc/00872/98344/107697.pdf https://archimer.ifremer.fr/doc/00872/98344/107698.docx https://doi.org/10.1038/s41598-024-51532-7 https://archimer.ifremer.fr/doc/00872/98344/ eng eng Springer Science and Business Media LLC https://archimer.ifremer.fr/doc/00872/98344/107697.pdf https://archimer.ifremer.fr/doc/00872/98344/107698.docx doi:10.1038/s41598-024-51532-7 https://archimer.ifremer.fr/doc/00872/98344/ info:eu-repo/semantics/openAccess restricted use Scientific Reports (2045-2322) (Springer Science and Business Media LLC), 2024-01 , Vol. 14 , N. 1 , P. 1065 (12p.) text Article info:eu-repo/semantics/article 2024 ftarchimer https://doi.org/10.1038/s41598-024-51532-7 2024-03-27T15:28:15Z The variability of Arctic sea-ice during abrupt stadial-interstadial shifts in the last glacial period remain poorly understood. Here, we investigated the millennial-scale relationship, with a focus on Heinrich Stadials (HS), between sea-ice cover and bottom water temperature (BWT) during Marine Isotope Stages (MIS) 3 and 2 (64–13 ka) in the Fram Strait using new molecular sea ice biomarker data and published benthic foraminiferal BWT records. Widespread spring sea-ice cover (SpSIC) dominated the studied interval, especially in mid-late MIS 3 (45–29 ka). Yet, warm interstadials were characterized by relatively more open-ocean conditions compared to cold stadials. At the transition between a HS and the subsequent interstadial, sea ice was tightly linked to BWT with rapid reductions in SpSIC coinciding with lower BWT at the end of HS. The relative timing of the events, especially during HS 1, points to ocean warming as the key controlling factor for sea ice reduction at millennial timescales. Article in Journal/Newspaper Atlantic Arctic Atlantic-Arctic Foraminifera* Fram Strait Sea ice Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Scientific Reports 14 1 |
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Open Polar |
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Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
description |
The variability of Arctic sea-ice during abrupt stadial-interstadial shifts in the last glacial period remain poorly understood. Here, we investigated the millennial-scale relationship, with a focus on Heinrich Stadials (HS), between sea-ice cover and bottom water temperature (BWT) during Marine Isotope Stages (MIS) 3 and 2 (64–13 ka) in the Fram Strait using new molecular sea ice biomarker data and published benthic foraminiferal BWT records. Widespread spring sea-ice cover (SpSIC) dominated the studied interval, especially in mid-late MIS 3 (45–29 ka). Yet, warm interstadials were characterized by relatively more open-ocean conditions compared to cold stadials. At the transition between a HS and the subsequent interstadial, sea ice was tightly linked to BWT with rapid reductions in SpSIC coinciding with lower BWT at the end of HS. The relative timing of the events, especially during HS 1, points to ocean warming as the key controlling factor for sea ice reduction at millennial timescales. |
format |
Article in Journal/Newspaper |
author |
El Bani Altuna, Naima Ezat, Mohamed M. Smik, Lukas Muschitiello, Francesco Belt, Simon T. Knies, Jochen Rasmussen, Tine L. |
spellingShingle |
El Bani Altuna, Naima Ezat, Mohamed M. Smik, Lukas Muschitiello, Francesco Belt, Simon T. Knies, Jochen Rasmussen, Tine L. Sea ice-ocean coupling during Heinrich Stadials in the Atlantic–Arctic gateway |
author_facet |
El Bani Altuna, Naima Ezat, Mohamed M. Smik, Lukas Muschitiello, Francesco Belt, Simon T. Knies, Jochen Rasmussen, Tine L. |
author_sort |
El Bani Altuna, Naima |
title |
Sea ice-ocean coupling during Heinrich Stadials in the Atlantic–Arctic gateway |
title_short |
Sea ice-ocean coupling during Heinrich Stadials in the Atlantic–Arctic gateway |
title_full |
Sea ice-ocean coupling during Heinrich Stadials in the Atlantic–Arctic gateway |
title_fullStr |
Sea ice-ocean coupling during Heinrich Stadials in the Atlantic–Arctic gateway |
title_full_unstemmed |
Sea ice-ocean coupling during Heinrich Stadials in the Atlantic–Arctic gateway |
title_sort |
sea ice-ocean coupling during heinrich stadials in the atlantic–arctic gateway |
publisher |
Springer Science and Business Media LLC |
publishDate |
2024 |
url |
https://archimer.ifremer.fr/doc/00872/98344/107697.pdf https://archimer.ifremer.fr/doc/00872/98344/107698.docx https://doi.org/10.1038/s41598-024-51532-7 https://archimer.ifremer.fr/doc/00872/98344/ |
genre |
Atlantic Arctic Atlantic-Arctic Foraminifera* Fram Strait Sea ice |
genre_facet |
Atlantic Arctic Atlantic-Arctic Foraminifera* Fram Strait Sea ice |
op_source |
Scientific Reports (2045-2322) (Springer Science and Business Media LLC), 2024-01 , Vol. 14 , N. 1 , P. 1065 (12p.) |
op_relation |
https://archimer.ifremer.fr/doc/00872/98344/107697.pdf https://archimer.ifremer.fr/doc/00872/98344/107698.docx doi:10.1038/s41598-024-51532-7 https://archimer.ifremer.fr/doc/00872/98344/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1038/s41598-024-51532-7 |
container_title |
Scientific Reports |
container_volume |
14 |
container_issue |
1 |
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1796938541733773312 |