Fast and slow components of interstadial warming in the North Atlantic during the last glacial
The abrupt nature of warming events recorded in Greenland ice-cores during the last glacial has generated much debate over their underlying mechanisms. Here, we present joint marine and terrestrial analyses from the Portuguese Margin, showing a succession of cold stadials and warm interstadials over...
Published in: | Communications Earth & Environment |
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Online Access: | https://hdl.handle.net/10037/19276 https://doi.org/10.1038/s43247-020-0006-x |
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ftunivtroemsoe:oai:munin.uit.no:10037/19276 2023-05-15T14:22:43+02:00 Fast and slow components of interstadial warming in the North Atlantic during the last glacial Margari, Vasiliki Skinner, Luke C. Menviel, Laurie Capron, Emilie Rhodes, Rachael H Mleneck-Vautravers, Maryline J. Ezat, Mohamed Martrat, Belen Grimalt, Joan O. Hodell, David A Tzedakis, Polychronis 2020-08-13 https://hdl.handle.net/10037/19276 https://doi.org/10.1038/s43247-020-0006-x eng eng Springer Nature Communications Earth & Environment info:eu-repo/grantAgreement/RCN/SFF/223259/Norway/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/ info:eu-repo/grantAgreement/RCN/FRINATEK/274429/Norway/Paleo-perspectives for the future circulation and carbon cycle dynamics in the Arctic Ocean// FRIDAID 1825657 https://doi.org/10.1038/s43247-020-0006-x 2662-4435 https://hdl.handle.net/10037/19276 openAccess Copyright 2020 The Author(s) 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 publishedVersion 2020 ftunivtroemsoe https://doi.org/10.1038/s43247-020-0006-x 2021-06-25T17:57:37Z The abrupt nature of warming events recorded in Greenland ice-cores during the last glacial has generated much debate over their underlying mechanisms. Here, we present joint marine and terrestrial analyses from the Portuguese Margin, showing a succession of cold stadials and warm interstadials over the interval 35–57 ka. Heinrich stadials 4 and 5 contain considerable structure, with a short transitional phase leading to an interval of maximum cooling and aridity, followed by slowly increasing sea-surface temperatures and moisture availability. A climate model experiment reproduces the changes in western Iberia during the final part of Heinrich stadial 4 as a result of the gradual recovery of the Atlantic meridional overturning circulation. What emerges is that Greenland ice-core records do not provide a unique template for warming events, which involved the operation of both fast and slow components of the coupled atmosphere–ocean–sea-ice system, producing adjustments over a range of timescales. Article in Journal/Newspaper Arctic Greenland Greenland ice core Greenland ice cores ice core North Atlantic Sea ice University of Tromsø: Munin Open Research Archive Greenland Communications Earth & Environment 1 1 |
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 Margari, Vasiliki Skinner, Luke C. Menviel, Laurie Capron, Emilie Rhodes, Rachael H Mleneck-Vautravers, Maryline J. Ezat, Mohamed Martrat, Belen Grimalt, Joan O. Hodell, David A Tzedakis, Polychronis Fast and slow components of interstadial warming in the North Atlantic during the last glacial |
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 |
The abrupt nature of warming events recorded in Greenland ice-cores during the last glacial has generated much debate over their underlying mechanisms. Here, we present joint marine and terrestrial analyses from the Portuguese Margin, showing a succession of cold stadials and warm interstadials over the interval 35–57 ka. Heinrich stadials 4 and 5 contain considerable structure, with a short transitional phase leading to an interval of maximum cooling and aridity, followed by slowly increasing sea-surface temperatures and moisture availability. A climate model experiment reproduces the changes in western Iberia during the final part of Heinrich stadial 4 as a result of the gradual recovery of the Atlantic meridional overturning circulation. What emerges is that Greenland ice-core records do not provide a unique template for warming events, which involved the operation of both fast and slow components of the coupled atmosphere–ocean–sea-ice system, producing adjustments over a range of timescales. |
format |
Article in Journal/Newspaper |
author |
Margari, Vasiliki Skinner, Luke C. Menviel, Laurie Capron, Emilie Rhodes, Rachael H Mleneck-Vautravers, Maryline J. Ezat, Mohamed Martrat, Belen Grimalt, Joan O. Hodell, David A Tzedakis, Polychronis |
author_facet |
Margari, Vasiliki Skinner, Luke C. Menviel, Laurie Capron, Emilie Rhodes, Rachael H Mleneck-Vautravers, Maryline J. Ezat, Mohamed Martrat, Belen Grimalt, Joan O. Hodell, David A Tzedakis, Polychronis |
author_sort |
Margari, Vasiliki |
title |
Fast and slow components of interstadial warming in the North Atlantic during the last glacial |
title_short |
Fast and slow components of interstadial warming in the North Atlantic during the last glacial |
title_full |
Fast and slow components of interstadial warming in the North Atlantic during the last glacial |
title_fullStr |
Fast and slow components of interstadial warming in the North Atlantic during the last glacial |
title_full_unstemmed |
Fast and slow components of interstadial warming in the North Atlantic during the last glacial |
title_sort |
fast and slow components of interstadial warming in the north atlantic during the last glacial |
publisher |
Springer Nature |
publishDate |
2020 |
url |
https://hdl.handle.net/10037/19276 https://doi.org/10.1038/s43247-020-0006-x |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Arctic Greenland Greenland ice core Greenland ice cores ice core North Atlantic Sea ice |
genre_facet |
Arctic Greenland Greenland ice core Greenland ice cores ice core North Atlantic Sea ice |
op_relation |
Communications Earth & Environment info:eu-repo/grantAgreement/RCN/SFF/223259/Norway/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/ info:eu-repo/grantAgreement/RCN/FRINATEK/274429/Norway/Paleo-perspectives for the future circulation and carbon cycle dynamics in the Arctic Ocean// FRIDAID 1825657 https://doi.org/10.1038/s43247-020-0006-x 2662-4435 https://hdl.handle.net/10037/19276 |
op_rights |
openAccess Copyright 2020 The Author(s) |
op_doi |
https://doi.org/10.1038/s43247-020-0006-x |
container_title |
Communications Earth & Environment |
container_volume |
1 |
container_issue |
1 |
_version_ |
1766295248614457344 |