气候变化领域集成服务门户(CCPortal): Dampened predictable decadal North Atlantic climate fluctuations due to ice melting

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DOI	10.1038/s41561-023-01145-y
	Dampened predictable decadal North Atlantic climate fluctuations due to ice melting
	Martin-Puertas, Celia; Hernandez, Armand; Pardo-Iguzquiza, Eulogio; Boyall, Laura; Brierley, Chris; Jiang, Zhiyi; Tjallingii, Rik; Blockley, Simon P. E.; Rodriguez-Tovar, Francisco Javier
发表日期	2022
ISSN	1752-0894
EISSN	1752-0908
页码	10
英文摘要	Meltwater discharge to the mid-Holocene North Atlantic disrupted decadal climate variability, suggesting future melting on Greenland may hinder climate predictability in the region, according to an annually laminated lake-sediment record and transient model simulations. The oscillatory behaviour of the climate system on decadal timescales before the instrumental record is hard to quantify. However, knowledge of this variability is important for putting current changes in context and for supporting reliable future predictions. Here we investigate the recurrent component of Holocene climate variability in the North Atlantic sector from 10,500 to 2,000 years ago by conducting a frequency analysis of both an annually laminated climate record from a lake in England and outputs from a long transient simulation of the Atlantic meridional overturning circulation. We find consistent decadal variability over the past 6,700 years and before 8,500 years before present, probably reflecting predominance of solar and ocean forcings. Between these dates, climate variability was dampened on decadal timescales. Our results suggest that meltwater discharge into the North Atlantic and the subsequent hydrographic changes, from the opening of the Hudson Bay until the final collapse of the Laurentide Ice Sheet, disrupted the decadal cyclic signals for more than a millennium. Given the current acceleration of the Greenland Ice Sheet melting in response to global warming, this study provides long-term evidence of potential challenges predicting future patterns of the climate system.
学科领域	Geosciences, Multidisciplinary
语种	英语
WOS研究方向	Geology
WOS记录号	WOS:000955110900001
来源期刊	NATURE GEOSCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/272493
作者单位	University of London; Royal Holloway University London; Universidade da Coruna; Complutense University of Madrid; Consejo Superior de Investigaciones Cientificas (CSIC); CSIC-UCM - Instituto de Geociencias (IGEO); University of London; University College London; Helmholtz Association; Helmholtz-Center Potsdam GFZ German Research Center for Geosciences; University of Granada
推荐引用方式 GB/T 7714	Martin-Puertas, Celia,Hernandez, Armand,Pardo-Iguzquiza, Eulogio,et al. Dampened predictable decadal North Atlantic climate fluctuations due to ice melting[J],2022:10.
APA	Martin-Puertas, Celia.,Hernandez, Armand.,Pardo-Iguzquiza, Eulogio.,Boyall, Laura.,Brierley, Chris.,...&Rodriguez-Tovar, Francisco Javier.(2022).Dampened predictable decadal North Atlantic climate fluctuations due to ice melting.NATURE GEOSCIENCE,10.
MLA	Martin-Puertas, Celia,et al."Dampened predictable decadal North Atlantic climate fluctuations due to ice melting".NATURE GEOSCIENCE (2022):10.