Margari, V;
Skinner, LC;
Menviel, L;
Capron, E;
Rhodes, RH;
Mleneck-Vautravers, MJ;
Ezat, MM;
... Tzedakis, PC; + view all
(2020)
Fast and slow components of interstadial warming in the North Atlantic during the last glacial.
Communications Earth & Environment
, 1
, Article 6. 10.1038/s43247-020-0006-x.
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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.
| Type: | Article |
|---|---|
| Title: | Fast and slow components of interstadial warming in the North Atlantic during the last glacial |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1038/s43247-020-0006-x |
| Publisher version: | https://doi.org/10.1038/s43247-020-0006-x |
| Language: | English |
| Additional information: | This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
| Keywords: | Climate sciences, Palaeoceanography, Palaeoclimate |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL SLASH UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of S&HS UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of S&HS > Dept of Geography |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10110970 |
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