气候变化领域集成服务门户(CCPortal): Into the Holocene, anatomy of the Younger Dryas cold reversal and preboreal oscillation

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DOI	10.1038/s41598-024-53591-2
	Into the Holocene, anatomy of the Younger Dryas cold reversal and preboreal oscillation
	Velay-Vitow, Jesse; Velay-Vitow, Jesse; Chandan, Deepak; Peltier, W. Richard
发表日期	2024
ISSN	2045-2322
起始页码	14
结束页码	1
卷号	14 期号:1
英文摘要	During the most recent deglaciation, the upwards trend of warmer Northern Hemisphere (NH) temperatures was punctuated by a rapid and intense return to glacial conditions: the Younger Dryas (YD). The end of this event marks the beginning of the Holocene. Using the University of Toronto version of CCSM4, a model of the climate prior to the YD was created with correct boundary conditions. Various amounts of freshwater forcing were then applied to the Beaufort Gyre for forcing intervals ranging from 1 to 125 years. In several cases, this was sufficient to collapse the Atlantic Meridional Overturning Circulation (AMOC) and cause significant cooling over the NH. Crucially, after the forcing was ceased, the AMOC stayed in an off state for approximately a millennium before mounting a rapid recover to pre-YD levels. This recovery, which permanently reduced the extent of NH sea ice, occurred through the mechanism of a Polynya opening in the Irminger Sea during winter and led to a pronounced overshoot of the AMOC, during which NH temperatures were higher than before the YD.
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:001158921600043
来源期刊	SCIENTIFIC REPORTS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/293241
作者单位	University of Toronto
推荐引用方式 GB/T 7714	Velay-Vitow, Jesse,Velay-Vitow, Jesse,Chandan, Deepak,et al. Into the Holocene, anatomy of the Younger Dryas cold reversal and preboreal oscillation[J],2024,14(1).
APA	Velay-Vitow, Jesse,Velay-Vitow, Jesse,Chandan, Deepak,&Peltier, W. Richard.(2024).Into the Holocene, anatomy of the Younger Dryas cold reversal and preboreal oscillation.SCIENTIFIC REPORTS,14(1).
MLA	Velay-Vitow, Jesse,et al."Into the Holocene, anatomy of the Younger Dryas cold reversal and preboreal oscillation".SCIENTIFIC REPORTS 14.1(2024).