Fast and slow components of interstadial warming in the North Atlantic during the last glacial
Skinner, Luke C.
Mleneck-Vautravers, Maryline J.
Hodell, David A.
Communications Earth & Environment
Nature Publishing Group UK
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Margari, V., Skinner, L. C., Menviel, L., Capron, E., Rhodes, R. H., Mleneck-Vautravers, M. J., Ezat, M. M., et al. (2020). Fast and slow components of interstadial warming in the North Atlantic during the last glacial. Communications Earth & Environment, 1 (1) https://doi.org/10.1038/s43247-020-0006-x
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, /704/106, /704/106/2738, /704/106/413, article
External DOI: https://doi.org/10.1038/s43247-020-0006-x
This record's URL: https://www.repository.cam.ac.uk/handle/1810/317838
Attribution 4.0 International (CC BY 4.0)
Licence URL: https://creativecommons.org/licenses/by/4.0/