气候变化领域集成服务门户(CCPortal): Glaciations and palaeoclimate of the last millennium in the Drongtso Lungpa Co Valley, southeastern Tibetan Plateau, based on cosmogenic 10Be exposure dating and glacier modelling

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DOI	10.1016/j.jseaes.2023.105777
	Glaciations and palaeoclimate of the last millennium in the Drongtso Lungpa Co Valley, southeastern Tibetan Plateau, based on cosmogenic 10Be exposure dating and glacier modelling
	Jiang, Zihan; Hu, Gang; Yi, Chaolu; Wang, Ninglian; Liu, Jinhua; Zhang, Li; Zhang, Qian
发表日期	2023
ISSN	1367-9120
EISSN	1878-5786
卷号	255
英文摘要	The temperate glaciers of the southeastern Tibetan Plateau (TP) are highly sensitive to climate change. In this study, 11 exposure ages were obtained from the Drongtso Lungpa Co Valley in the southeastern TP to constrain the timing of glaciations during the late Holocene. The 10Be exposure dating method was employed to reconstruct the palaeoclimate during glaciations, using coupled mass balance and ice flow models. The results uncovered three typical glacial events, constrained at 1002 & PLUSMN; 190 CE, 1623 & PLUSMN; 149 CE, and 1874 & PLUSMN; 116 CE. The modelling results showed that the temperature during the glacial event at 1002 & PLUSMN; 190 CE was 2.8-1.8 degrees C lower than today, while the precipitation amounts were 20-70 % higher than the present-day level. The modelled temperature during the 1623 & PLUSMN; 149 CE event was 1.5-0.6 degrees C lower than today, while the modelled precipitation amounts were 10-50 % higher than today. The modelled temperature during the 1874 & PLUSMN; 116 CE event was 1.5-0.75 degrees C lower than today, while the modelled precipitation amounts were up to 30 % higher than the present-day level. A comparison with the ages of glacial events of the southern TP indicated that the timing of glacial variations in the Drongtso Lungpa Co Valley kept pace with other places in the southern TP. These other places experienced glacial events during similar to 950-1200 CE, similar to 1200-1700 CE, and similar to 1750-1900 CE.
关键词	Palaeoglaciation Climate change Glacial change Mass balance Ice flow
英文关键词	TREE-RING EVIDENCE; ICE-AGE; QUATERNARY GLACIATION; MONSOON PRECIPITATION; CLIMATE CONDITIONS; ENERGY-BALANCE; HIMALAYA; SHAN; RECONSTRUCTION; VARIABILITY
WOS研究方向	Geosciences, Multidisciplinary
WOS记录号	WOS:001033875900001
来源期刊	JOURNAL OF ASIAN EARTH SCIENCES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283912
作者单位	Shandong Normal University; China Earthquake Administration; Tibet University; Northwest University Xi'an; East China University of Technology; Chinese Academy of Sciences; Institute of Earth Environment, CAS; Xi'an Jiaotong University
推荐引用方式 GB/T 7714	Jiang, Zihan,Hu, Gang,Yi, Chaolu,et al. Glaciations and palaeoclimate of the last millennium in the Drongtso Lungpa Co Valley, southeastern Tibetan Plateau, based on cosmogenic 10Be exposure dating and glacier modelling[J],2023,255.
APA	Jiang, Zihan.,Hu, Gang.,Yi, Chaolu.,Wang, Ninglian.,Liu, Jinhua.,...&Zhang, Qian.(2023).Glaciations and palaeoclimate of the last millennium in the Drongtso Lungpa Co Valley, southeastern Tibetan Plateau, based on cosmogenic 10Be exposure dating and glacier modelling.JOURNAL OF ASIAN EARTH SCIENCES,255.
MLA	Jiang, Zihan,et al."Glaciations and palaeoclimate of the last millennium in the Drongtso Lungpa Co Valley, southeastern Tibetan Plateau, based on cosmogenic 10Be exposure dating and glacier modelling".JOURNAL OF ASIAN EARTH SCIENCES 255(2023).