Data/hora: 16/06/2024 09:10:21

Provedor de dados: | 5
País: | France
Título: | Enhanced climate instability in the North Atlantic and southern Europe during the Last Interglacial
Autores: | Tzedakis, P. C.; Drysdale, R. N.; Margari, V.; Skinner, L. C.; Menviel, L.; Rhodes, R. H.; Taschetto, A. S.; Hodell, D. A.; Crowhurst, S. J.; Hellstrom, J. C.; Fallick, A. E.; Grimalt, J. O.; Mcmanus, J. F.; Martrat, B.; Mokeddem, Zohra; Parrenin, F.; Regattieri, E.; Roe, K.; Zanchetta, G.
Data: | 2018-10
Ano: | 2018
Resumo: | Considerable ambiguity remains over the extent and nature of millennial/centennial-scale climate instability during the Last Interglacial (LIG). Here we analyse marine and terrestrial proxies from a deep-sea sediment sequence on the Portuguese Margin and combine results with an intensively dated Italian speleothem record and climate-model experiments. The strongest expression of climate variability occurred during the transitions into and out of the LIG. Our records also document a series of multi-centennial intra-interglacial arid events in southern Europe, coherent with cold water-mass expansions in the North Atlantic. The spatial and temporal fingerprints of these changes indicate a reorganization of ocean surface circulation, consistent with low-intensity disruptions of the Atlantic meridional overturning circulation (AMOC). The amplitude of this LIG variability is greater than that observed in Holocene records. Episodic Greenland ice melt and runoff as a result of excess warmth may have contributed to AMOC weakening and increased climate instability throughout the LIG.
Tipo: | Text
Idioma: | Inglês

Identificador:

https://archimer.ifremer.fr/doc/00461/57261/59304.pdf

https://archimer.ifremer.fr/doc/00461/57261/59305.pdf

https://archimer.ifremer.fr/doc/00461/57261/59306.pdf

https://archimer.ifremer.fr/doc/00461/57261/59307.xlsx

https://archimer.ifremer.fr/doc/00461/57261/59308.xlsx

https://archimer.ifremer.fr/doc/00461/57261/59309.xlsx

https://archimer.ifremer.fr/doc/00461/57261/59310.xlsx

DOI:10.1038/s41467-018-06683-3

https://archimer.ifremer.fr/doc/00461/57261/

Editor: | Nature Publishing Group
Formato: | application/pdf
Fonte: | Nature Communications (2041-1723) (Nature Publishing Group), 2018-10 , Vol. 9 , N. 1 , P. 435 (14p.)

Fonte:

The Author(s) 2018

info:eu-repo/semantics/openAccess

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