Fast and slow components of interstadial warming in the North Atlantic during the last glacial
Abstract: 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 intersta...
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ftunivcam:oai:www.repository.cam.ac.uk:1810/317838 2023-07-30T04:03:48+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 M. Martrat, Belen Grimalt, Joan O. Hodell, David A. Tzedakis, Polychronis C. 2021-02-18T18:35:11Z application/pdf application/zip text/xml https://doi.org/10.17863/CAM.64953 https://www.repository.cam.ac.uk/handle/1810/317838 en eng Nature Publishing Group UK Communications Earth & Environment doi:10.17863/CAM.64953 https://www.repository.cam.ac.uk/handle/1810/317838 Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/ Article /704/106 /704/106/2738 /704/106/413 Article 2021 ftunivcam https://doi.org/10.17863/CAM.64953 2023-07-10T21:26:21Z Abstract: 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 Greenland Greenland ice core Greenland ice cores ice core North Atlantic Sea ice Apollo - University of Cambridge Repository Greenland |
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Open Polar |
collection |
Apollo - University of Cambridge Repository |
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ftunivcam |
language |
English |
topic |
Article /704/106 /704/106/2738 /704/106/413 |
spellingShingle |
Article /704/106 /704/106/2738 /704/106/413 Margari, Vasiliki Skinner, Luke C. Menviel, Laurie Capron, Emilie Rhodes, Rachael H. Mleneck-Vautravers, Maryline J. Ezat, Mohamed M. Martrat, Belen Grimalt, Joan O. Hodell, David A. Tzedakis, Polychronis C. Fast and slow components of interstadial warming in the North Atlantic during the last glacial |
topic_facet |
Article /704/106 /704/106/2738 /704/106/413 |
description |
Abstract: 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 M. Martrat, Belen Grimalt, Joan O. Hodell, David A. Tzedakis, Polychronis C. |
author_facet |
Margari, Vasiliki Skinner, Luke C. Menviel, Laurie Capron, Emilie Rhodes, Rachael H. Mleneck-Vautravers, Maryline J. Ezat, Mohamed M. Martrat, Belen Grimalt, Joan O. Hodell, David A. Tzedakis, Polychronis C. |
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 |
Nature Publishing Group UK |
publishDate |
2021 |
url |
https://doi.org/10.17863/CAM.64953 https://www.repository.cam.ac.uk/handle/1810/317838 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Greenland ice core Greenland ice cores ice core North Atlantic Sea ice |
genre_facet |
Greenland Greenland ice core Greenland ice cores ice core North Atlantic Sea ice |
op_relation |
doi:10.17863/CAM.64953 https://www.repository.cam.ac.uk/handle/1810/317838 |
op_rights |
Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.17863/CAM.64953 |
_version_ |
1772814915620306944 |