The 9.2 ka event in Asian summer monsoon area: the strongest millennial scale collapse of the monsoon during the Holocene

doi:10.1007/s00382-017-3770-2

	The 9.2 ka event in Asian summer monsoon area: the strongest millennial scale collapse of the monsoon during the Holocene
	Liu, Chengcheng 1,4; An, Zhisheng 1,2,5; Zhou, Weijian 1,2,5; Dodson, John 1,3; Cheng, Peng 1; Yan, Hong 1,2,5; Zhang, Wenchao 1,2,4,5; Lu, Fengyan 1; Li, Jianyong 1
刊名	CLIMATE DYNAMICS
	2018-04-01
卷号	50 期号:7-8 页码:2767-2782
关键词	Dajiuhu Peat Central China Paleoclimate Records Abrupt Climate Changes 9.2 Ka Bp Event Weak Asian Summer Monsoon
DOI	10.1007/s00382-017-3770-2
文献子类	Article
英文摘要	Numerous Holocene paleo-proxy records exhibit a series of centennial-millennial scale rapid climatic events. Unlike the widely acknowledged 8.2 ka climate anomaly, the likelihood of a significant climate excursion at around 9.2 cal ka BP, which has been notably recognized in some studies, remains to be fully clarified in terms of its magnitude and intensity, as well as its characteristics and spatial distributions in a range of paleoclimatic records. In this study, a peat sediment profile from the Dajiuhu Basin in central China was collected with several geochemical proxies and a pollen analysis carried out to help improve understanding of the climate changes around 9.2 cal ka BP. The results show that the peat development was interrupted abruptly at around 9.2 cal ka BP, when the chemical weathering strength decreased and the tree-pollen declined. This suggests that a strong drier regional climatic event occurred at around 9.2 cal ka BP in central China, which was, in turn, probably connected to the rapid 9.2 ka climate event co-developing worldwide. In addition, based on the synthesis of our peat records and the other Holocene hydrological records from Asian summer monsoon (ASM) region, we further found that the 9.2 ka event probably constituted the strongest abrupt collapse of the Asian monsoon system during the full Holocene interval. The correlations between ASM and the atmospheric C-14 production rate, the North Atlantic drift ice records and Greenland temperature indicated that the weakened ASM event at around 9.2 cal ka BP could be interpreted by the co-influence of external and internal factors, related to the changes of the solar activity and the Atlantic Meridional Overturning Circulation (AMOC).
WOS关键词	INTERTROPICAL CONVERGENCE ZONE ; NORTH-ATLANTIC CLIMATE ; 8.2 KYR BP ; HIGH-RESOLUTION ; CENTRAL CHINA ; INDIAN MONSOON ; ENVIRONMENTAL-CHANGES ; DELTA-O-18 RECORD ; CENTENNIAL-SCALE ; TIBETAN PLATEAU
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
WOS记录号	WOS:000428600200026
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5218]
专题	地球环境研究所_古环境研究室
作者单位	1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China 2.Beijing Normal Univ, IRCESF, Beijing 100875, Peoples R China 3.Univ Wollongong, Sch Earth & Environm Sci, Wollongong, NSW 2500, Australia 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Beijing Normal Univ, JCGCS, Beijing 100875, Peoples R China
推荐引用方式 GB/T 7714	Liu, Chengcheng,An, Zhisheng,Zhou, Weijian,et al. The 9.2 ka event in Asian summer monsoon area: the strongest millennial scale collapse of the monsoon during the Holocene[J]. CLIMATE DYNAMICS,2018,50(7-8):2767-2782.
APA	Liu, Chengcheng.,An, Zhisheng.,Zhou, Weijian.,Dodson, John.,Cheng, Peng.,...&Li, Jianyong.(2018).The 9.2 ka event in Asian summer monsoon area: the strongest millennial scale collapse of the monsoon during the Holocene.CLIMATE DYNAMICS,50(7-8),2767-2782.
MLA	Liu, Chengcheng,et al."The 9.2 ka event in Asian summer monsoon area: the strongest millennial scale collapse of the monsoon during the Holocene".CLIMATE DYNAMICS 50.7-8(2018):2767-2782.