气候变化领域集成服务门户(CCPortal): Sixty-year quasi-period of the Asian monsoon around the Last Interglacial derived from an annually resolved stalagmite δ18O record

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DOI	10.1016/j.palaeo.2019.109545
	Sixty-year quasi-period of the Asian monsoon around the Last Interglacial derived from an annually resolved stalagmite δ18O record
	Wang Z.; Chen S.; Wang Y.; Cheng H.; Liang Y.; Yang S.; Zhang Z.; Zhou X.; Wang M.
发表日期	2020
ISSN	0031-0182
卷号	541
英文摘要	The 60-year quasi-periodic variability of the Asian monsoon in the mid-late Holocene has been found to be widespread in instrumental and various terrestrial records. However, whether this period exists in the older interglacial periods remains to be further studied. This paper is based on an 1840-mm-long stalagmite with clear annual laminae (with a growth rate of about 1 mm/yr) from Yongxing Cave, China, that allows for the reconstruction of the Asian monsoon evolution sequence during the period ~123.20–121.21 kyr BP. The stalagmite record closely tracks the 65°N solar insolation changes as a whole, indicating the dominant control of solar insolation on the Asian summer monsoon. After removing the solar insolation signal from the YX108 record, the δ18O residuals (Δδ18O) show 28 multidecadal monsoon cycles. The average amplitude of these fluctuations is larger than 0.8‰, with a duration typically ranging from 50 to 80 yr (about 64 yr on average), which is very similar to the mid-late Holocene Asian monsoon variability. Further, wavelet analysis displays a significant quasi-periodicity of 60 years throughout the studied period, providing further evidence for assessing whether the 60-year quasi-periodic variability of the Asian monsoon found in the Holocene exists in older periods. Our study thus suggests that this quasi-periodic variability not only occurred during the modern period but also existed in the Last Interglacial, and their influence may even be an intrinsic characteristic of the Asian monsoon system during glacial-interglacial cycles. We manifested that the interactions between solar activity and the Atlantic Multidecadal Oscillation may be the main reason for the 60-year quasi-period of the Asian monsoon. © 2019 Elsevier B.V.
英文关键词	Annual laminae; Chinese cave; Monsoon cycle; Ocean–atmosphere coupling; Solar activity
语种	英语
scopus关键词	Atlantic Multidecadal Oscillation; atmosphere-ocean coupling; growth rate; Holocene; Last Interglacial; monsoon; solar activity; stalagmite; wavelet analysis; China
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150614
作者单位	School of Geography, Nanjing Normal University, Nanjing, 210023, China; State Key Laboratory Cultivation Base of Geographical Environment Evolution (Jiangsu Province), Nanjing, 210023, China; Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023, China; Institute of Global Environmental Change, Xi'an Jiaotong University, Xi'an, 710049, China; Department of Geology and Geophysics, University of Minnesota, Minneapolis, MN 55455, United States
推荐引用方式 GB/T 7714	Wang Z.,Chen S.,Wang Y.,et al. Sixty-year quasi-period of the Asian monsoon around the Last Interglacial derived from an annually resolved stalagmite δ18O record[J],2020,541.
APA	Wang Z..,Chen S..,Wang Y..,Cheng H..,Liang Y..,...&Wang M..(2020).Sixty-year quasi-period of the Asian monsoon around the Last Interglacial derived from an annually resolved stalagmite δ18O record.Palaeogeography, Palaeoclimatology, Palaeoecology,541.
MLA	Wang Z.,et al."Sixty-year quasi-period of the Asian monsoon around the Last Interglacial derived from an annually resolved stalagmite δ18O record".Palaeogeography, Palaeoclimatology, Palaeoecology 541(2020).