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Fast and slow components of interstadial warming in the North Atlantic during the last glacial

Permanent lenke
https://hdl.handle.net/10037/19276
DOI
https://doi.org/10.1038/s43247-020-0006-x
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article.pdf (1.682Mb)
Publisert versjon (PDF)
Dato
2020-08-13
Type
Journal article
Tidsskriftartikkel
Peer reviewed

Forfatter
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
Sammendrag
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.
Forlag
Springer Nature
Sitering
Margari, Skinner LC, Menviel L, Capron E, Rhodes RH, Mleneck-Vautravers MJ, Ezat M, Martrat B, Grimalt JO, Hodell DA, Tzedakis. Fast and slow components of interstadial warming in the North Atlantic during the last glacial. Communications Earth & Environment. 2020
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  • Artikler, rapporter og annet (geovitenskap) [806]
Copyright 2020 The Author(s)

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