Margari, Vasiliki and Skinner, Luke C. and Menviel, Laurie and Capron, Emilie and Rhodes, Rachael H. and Mleneck-Vautravers, Maryline J. and Ezat, Mohamed M. and Martrat, Belen and Grimalt, Joan O. and Hodell, David A. and Tzedakis, Polychronis C. (2020) Fast and slow components of interstadial warming in the North Atlantic during the last glacial. Communications Earth & Environment, 1 (1). ISSN 2662-4435 DOI https://doi.org/10.1038/s43247-020-0006-x
![]() |
Text
s43247-020-0006-x.pdf - Published Version Available under License Creative Commons Attribution. Download (1MB) |
![]() |
Text
43247_2020_6_MOESM1_ESM.pdf - Supplemental Material Download (1MB) |
![]() |
Text
43247_2020_6_MOESM2_ESM.pdf - Supplemental Material Download (62kB) |
![]() |
Text
43247_2020_6_MOESM3_ESM.xlsx - Supplemental Material Download (191kB) |
![]() |
Text
43247_2020_6_MOESM4_ESM.pdf - Supplemental Material Download (1MB) |
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.
Item Type: | Article |
---|---|
Uncontrolled Keywords: | 2020AREP; IA76 |
Subjects: | 01 - Climate Change and Earth-Ocean Atmosphere Systems |
Divisions: | 01 - Climate Change and Earth-Ocean Atmosphere Systems 07 - Gold Open Access |
Journal or Publication Title: | Communications Earth & Environment |
Volume: | 1 |
Identification Number: | https://doi.org/10.1038/s43247-020-0006-x |
Depositing User: | Sarah Humbert |
Date Deposited: | 14 Aug 2020 17:30 |
Last Modified: | 14 Aug 2020 17:30 |
URI: | http://eprints.esc.cam.ac.uk/id/eprint/4864 |
Actions (login required)
![]() |
View Item |