Changes in sea ice cover and ice sheet extent at the Yermak Plateau during the last 160 ka - Reconstructions from biomarker records
Source at https://doi.org/10.1016/j.quascirev.2017.12.016 . The Yermak Plateau is located north of Svalbard at the entrance to the Arctic Ocean, i.e. in an area highly sensitive to climate change. A multi proxy approach was carried out on Core PS92/039-2 to study glacial-interglacial environmental c...
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Online Access: | https://hdl.handle.net/10037/16439 https://doi.org/10.1016/j.quascirev.2017.12.016 |
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ftunivtroemsoe:oai:munin.uit.no:10037/16439 2023-05-15T15:09:51+02:00 Changes in sea ice cover and ice sheet extent at the Yermak Plateau during the last 160 ka - Reconstructions from biomarker records Kremer, A Stein, R Fahl, K. Ji, Z Yang, Z Wiers, Steffen Matthiessen, J Forwick, Matthias Löwemark, Ludvig O'Regan, M Chen, J Snowball, Ian 2018-02-15 https://hdl.handle.net/10037/16439 https://doi.org/10.1016/j.quascirev.2017.12.016 eng eng Elsevier Quaternary Science Reviews Kremer, A., Stein, R., Fahl, K., Ji, Z., Yang, Z., Wiers, S., . Snowball, I. (2018). Changes in sea ice cover and ice sheet extent at the Yermak Plateau during the last 160 ka - Reconstructions from biomarker records. Quaternary Science Reviews, 182 , 93-108. https://doi.org/10.1016/j.quascirev.2017.12.016 FRIDAID 1623529 doi:10.1016/j.quascirev.2017.12.016 0277-3791 1873-457X https://hdl.handle.net/10037/16439 openAccess VDP::Mathematics and natural science: 400::Geosciences: 450::Quaternary geology glaciology: 465 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Kvartærgeologi glasiologi: 465 Journal article Tidsskriftartikkel Peer reviewed 2018 ftunivtroemsoe https://doi.org/10.1016/j.quascirev.2017.12.016 2021-06-25T17:56:33Z Source at https://doi.org/10.1016/j.quascirev.2017.12.016 . The Yermak Plateau is located north of Svalbard at the entrance to the Arctic Ocean, i.e. in an area highly sensitive to climate change. A multi proxy approach was carried out on Core PS92/039-2 to study glacial-interglacial environmental changes at the northern Barents Sea margin during the last 160 ka. The main emphasis was on the reconstruction of sea ice cover, based on the sea ice proxy IP 25 and the related phytoplankton - sea ice index PIP 25 . Sea ice was present most of the time but showed significant temporal variability decisively affected by movements of the Svalbard Barents Sea Ice Sheet. For the first time, we prove the occurrence of seasonal sea ice at the eastern Yermak Plateau during glacial intervals, probably steered by a major northward advance of the ice sheet and the formation of a coastal polynya in front of it. Maximum accumulation of terrigenous organic carbon, IP 25 and the phytoplankton biomarkers (brassicasterol, dinosterol, HBI III) can be correlated to distinct deglaciation events. More severe, but variable sea ice cover prevailed at the Yermak Plateau during interglacials. The general proximity to the sea ice margin is further indicated by biomarker (GDGT) - based sea surface temperatures below 2.5 °C. Article in Journal/Newspaper Arctic Arctic Ocean Barents Sea Climate change Ice Sheet Phytoplankton Sea ice Svalbard Svalbard-Barents Sea Ice sheet Yermak plateau University of Tromsø: Munin Open Research Archive Arctic Arctic Ocean Barents Sea Svalbard Yermak Plateau ENVELOPE(5.000,5.000,81.250,81.250) Quaternary Science Reviews 182 93 108 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Geosciences: 450::Quaternary geology glaciology: 465 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Kvartærgeologi glasiologi: 465 |
spellingShingle |
VDP::Mathematics and natural science: 400::Geosciences: 450::Quaternary geology glaciology: 465 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Kvartærgeologi glasiologi: 465 Kremer, A Stein, R Fahl, K. Ji, Z Yang, Z Wiers, Steffen Matthiessen, J Forwick, Matthias Löwemark, Ludvig O'Regan, M Chen, J Snowball, Ian Changes in sea ice cover and ice sheet extent at the Yermak Plateau during the last 160 ka - Reconstructions from biomarker records |
topic_facet |
VDP::Mathematics and natural science: 400::Geosciences: 450::Quaternary geology glaciology: 465 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Kvartærgeologi glasiologi: 465 |
description |
Source at https://doi.org/10.1016/j.quascirev.2017.12.016 . The Yermak Plateau is located north of Svalbard at the entrance to the Arctic Ocean, i.e. in an area highly sensitive to climate change. A multi proxy approach was carried out on Core PS92/039-2 to study glacial-interglacial environmental changes at the northern Barents Sea margin during the last 160 ka. The main emphasis was on the reconstruction of sea ice cover, based on the sea ice proxy IP 25 and the related phytoplankton - sea ice index PIP 25 . Sea ice was present most of the time but showed significant temporal variability decisively affected by movements of the Svalbard Barents Sea Ice Sheet. For the first time, we prove the occurrence of seasonal sea ice at the eastern Yermak Plateau during glacial intervals, probably steered by a major northward advance of the ice sheet and the formation of a coastal polynya in front of it. Maximum accumulation of terrigenous organic carbon, IP 25 and the phytoplankton biomarkers (brassicasterol, dinosterol, HBI III) can be correlated to distinct deglaciation events. More severe, but variable sea ice cover prevailed at the Yermak Plateau during interglacials. The general proximity to the sea ice margin is further indicated by biomarker (GDGT) - based sea surface temperatures below 2.5 °C. |
format |
Article in Journal/Newspaper |
author |
Kremer, A Stein, R Fahl, K. Ji, Z Yang, Z Wiers, Steffen Matthiessen, J Forwick, Matthias Löwemark, Ludvig O'Regan, M Chen, J Snowball, Ian |
author_facet |
Kremer, A Stein, R Fahl, K. Ji, Z Yang, Z Wiers, Steffen Matthiessen, J Forwick, Matthias Löwemark, Ludvig O'Regan, M Chen, J Snowball, Ian |
author_sort |
Kremer, A |
title |
Changes in sea ice cover and ice sheet extent at the Yermak Plateau during the last 160 ka - Reconstructions from biomarker records |
title_short |
Changes in sea ice cover and ice sheet extent at the Yermak Plateau during the last 160 ka - Reconstructions from biomarker records |
title_full |
Changes in sea ice cover and ice sheet extent at the Yermak Plateau during the last 160 ka - Reconstructions from biomarker records |
title_fullStr |
Changes in sea ice cover and ice sheet extent at the Yermak Plateau during the last 160 ka - Reconstructions from biomarker records |
title_full_unstemmed |
Changes in sea ice cover and ice sheet extent at the Yermak Plateau during the last 160 ka - Reconstructions from biomarker records |
title_sort |
changes in sea ice cover and ice sheet extent at the yermak plateau during the last 160 ka - reconstructions from biomarker records |
publisher |
Elsevier |
publishDate |
2018 |
url |
https://hdl.handle.net/10037/16439 https://doi.org/10.1016/j.quascirev.2017.12.016 |
long_lat |
ENVELOPE(5.000,5.000,81.250,81.250) |
geographic |
Arctic Arctic Ocean Barents Sea Svalbard Yermak Plateau |
geographic_facet |
Arctic Arctic Ocean Barents Sea Svalbard Yermak Plateau |
genre |
Arctic Arctic Ocean Barents Sea Climate change Ice Sheet Phytoplankton Sea ice Svalbard Svalbard-Barents Sea Ice sheet Yermak plateau |
genre_facet |
Arctic Arctic Ocean Barents Sea Climate change Ice Sheet Phytoplankton Sea ice Svalbard Svalbard-Barents Sea Ice sheet Yermak plateau |
op_relation |
Quaternary Science Reviews Kremer, A., Stein, R., Fahl, K., Ji, Z., Yang, Z., Wiers, S., . Snowball, I. (2018). Changes in sea ice cover and ice sheet extent at the Yermak Plateau during the last 160 ka - Reconstructions from biomarker records. Quaternary Science Reviews, 182 , 93-108. https://doi.org/10.1016/j.quascirev.2017.12.016 FRIDAID 1623529 doi:10.1016/j.quascirev.2017.12.016 0277-3791 1873-457X https://hdl.handle.net/10037/16439 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1016/j.quascirev.2017.12.016 |
container_title |
Quaternary Science Reviews |
container_volume |
182 |
container_start_page |
93 |
op_container_end_page |
108 |
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1766340961996111872 |