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DOI	10.1016/j.epsl.2020.116665
	Temperature signals of ice core and speleothem isotopic records from Asian monsoon region as indicated by precipitation delta O-18
	Yu, Wusheng; Yao, Tandong; Thompson, Lonnie G.; Jouzel, Jean; Zhao, Huabiao; Xu, Baiqing; Jing, Zhaowei; Wang, Ninglian; Wu, Guangjian; Ma, Yaoming; Gao, Jing; Yang, Xiaoxin; Zhang, Jingyi; Qu, Dongmei
通讯作者	Yu, WS (通讯作者)
发表日期	2021
ISSN	0012-821X
EISSN	1385-013X
卷号	554
英文摘要	Ice cores and speleothem delta O-18 records from Asia have been widely used as a proxy to reconstruct paleoclimate changes. However, whether those delta O-18 records are a proxy of temperature or monsoon intensity has remained a great controversy. Generally, ice core delta O-18 records from non-monsoon and transition regions indicate temperature, but ice core and speleothem delta O-18 records from monsoon regions have been regarded as proxies for monsoon intensity or precipitation. Here, we address the controversy by showing three 20-yr long daily precipitation delta O-18 (delta O-18(p)) series and 120 monthly sisop series based on 17461 precipitation samples throughout Asia. We find that the delta O-18 p signals preserved in precipitation are consistent with those in ice cores, both in the non-monsoon and monsoon regions. The results confirm previous research that ice core delta O-18 records in the non-monsoon region provide reliable histories of surface temperature. However, ice core delta O-18 records can still directly indicate surface temperature in the monsoon domain if winter/spring precipitation is heavy. When winter/spring precipitation is sparse, inverted ice core records show good agreement with surface temperature records. This may be due to the effect of cloud-top temperatures (which differ from surface temperatures) on summer delta O-18(p) values. Similarly, inverted speleothem delta O-18 records in the monsoon regions are similar to Greenland/Antarctic ice core delta O-18/delta D time series and other paleotemperature records. Our findings provide a reinterpretation of Asian ice core and speleothem delta O-18 records, and demonstrate that temperature signals have been preserved in those archives from the Asian monsoon region. (C) 2020 Elsevier B.V. All rights reserved.
关键词	TIBETAN PLATEAU STABLE-ISOTOPES OXYGEN ISOTOPES WATER ISOTOPE CLIMATE RESOLUTION HOLOCENE SOUTH CAVE INSTABILITY
英文关键词	inverted delta O-18 records; temperature; ice core; speleothem; Asian monsoon region
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000604582500018
来源期刊	EARTH AND PLANETARY SCIENCE LETTERS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260514
推荐引用方式 GB/T 7714	Yu, Wusheng,Yao, Tandong,Thompson, Lonnie G.,et al. Temperature signals of ice core and speleothem isotopic records from Asian monsoon region as indicated by precipitation delta O-18[J]. 中国科学院青藏高原研究所,2021,554.
APA	Yu, Wusheng.,Yao, Tandong.,Thompson, Lonnie G..,Jouzel, Jean.,Zhao, Huabiao.,...&Qu, Dongmei.(2021).Temperature signals of ice core and speleothem isotopic records from Asian monsoon region as indicated by precipitation delta O-18.EARTH AND PLANETARY SCIENCE LETTERS,554.
MLA	Yu, Wusheng,et al."Temperature signals of ice core and speleothem isotopic records from Asian monsoon region as indicated by precipitation delta O-18".EARTH AND PLANETARY SCIENCE LETTERS 554(2021).