气候变化领域集成服务门户(CCPortal): Late Holocene glacier variations indicated by the δ18O of ice core enclosed gaseous oxygen in the central Tibetan Plateau

CCPortal

DOI	10.1007/s11629-022-7705-y
	Late Holocene glacier variations indicated by the δ18O of ice core enclosed gaseous oxygen in the central Tibetan Plateau
	Li, Jiu-le; Xu, Bai-qing; Wang, Ning-lian; Yao, Ping; Xu, Xiang-ke
发表日期	2023
ISSN	1672-6316
EISSN	1993-0321
起始页码	325
结束页码	337
卷号	20 期号:2
英文摘要	The delta O-18 of ice core enclosed gaseous oxygen (delta O-18(bub)) has been widely used for climate reconstruction in polar regions. Yet, less is known about its climatic implication in the mountainous glaciers as the lack of continuous record. Here, we present a long-term, continuous delta O-18(bub) record from the Tanggula glacier in the central Tibetan Plateau (TP). Based on comparisons of its variation with regional climate and glacier changes, we found that there was a good correlation between the variation of the delta O-18(bub) in this alpine ice core and the accumulation and melting of this glacier. The more developed the firn layer on glacier surface, the more positive the delta O-18(bub). Conversely, the more intense the glacier melting, the more negative the delta O-18(bub). Combined with the chronology of ice core enclosed gases, the glacier variations since the late Holocene in the central TP were reconstructed. The result showed that there were four accumulation and three deficit periods of glaciers in this region. The strongest glacier accumulation period was 1610-300 B.C., which corresponds to the Neoglaciation. The most significant melting period was the last 100 years, which corresponds to the recent global warming. The Medieval Warm Period was relatively significant in the central TP. However, during the Little Ice Age, there was no significant glacier accumulation in the central TP, and even short deficit events occurred. Comparisons of the late Holocene glacier variation in the central TP with glacier and climate variations in the TP and the Northern Hemisphere showed that it was closely related to the North Atlantic Oscillation.
关键词	Ice core air bubble Stable isotope ratio Gaseous oxygen Glacier variation Late Holocene Tibetan Plateau
英文关键词	ABRUPT CLIMATE-CHANGE; AIR CONTENT; MILLENNIAL-SCALE; ANTARCTIC ICE; ATMOSPHERIC METHANE; CARBON-DIOXIDE; TEMPERATURE; RECORD; FLUCTUATIONS; VARIABILITY
WOS研究方向	Environmental Sciences
WOS记录号	WOS:000924142300003
来源期刊	JOURNAL OF MOUNTAIN SCIENCE
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/283826
作者单位	Chinese Academy of Sciences; Institute of Tibetan Plateau Research, CAS; Chinese Academy of Sciences; Institute of Tibetan Plateau Research, CAS; Chinese Academy of Sciences; Northwest University Xi'an
推荐引用方式 GB/T 7714	Li, Jiu-le,Xu, Bai-qing,Wang, Ning-lian,et al. Late Holocene glacier variations indicated by the δ18O of ice core enclosed gaseous oxygen in the central Tibetan Plateau[J]. 中国科学院青藏高原研究所,2023,20(2).
APA	Li, Jiu-le,Xu, Bai-qing,Wang, Ning-lian,Yao, Ping,&Xu, Xiang-ke.(2023).Late Holocene glacier variations indicated by the δ18O of ice core enclosed gaseous oxygen in the central Tibetan Plateau.JOURNAL OF MOUNTAIN SCIENCE,20(2).
MLA	Li, Jiu-le,et al."Late Holocene glacier variations indicated by the δ18O of ice core enclosed gaseous oxygen in the central Tibetan Plateau".JOURNAL OF MOUNTAIN SCIENCE 20.2(2023).