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DOI	10.1002/jqs.2701
	Modelling glacier advances and related climate conditions during the last glaciation cycle in the Kuzigun Valley, Tashkurgan catchment, on the north-west Tibetan Plateau
	Xu, Xiangke; Dong, Guocheng; Pan, Baolin
通讯作者	Xu, XK (通讯作者)
发表日期	2014
ISSN	0267-8179
EISSN	1099-1417
起始页码	279
结束页码	288
卷号	29 期号:3
英文摘要	Understanding regional climate during the last glaciation cycle (LGC) is far from complete for the north-western Tibetan Plateau. Recent improvements in understanding glacial extents and chronologies in the Tashkurgan catchment, north-west Tibetan Plateau, present an opportunity to estimate the glacial climatic conditions of the LGC. Here we use a coupled mass-balance and ice-flow model to reconstruct glacier advances in the Kuzigun Valley during the LGC and quantify the related climate conditions in the Tashkurgan, Hangdi, and Kuzigun glacial stages for the region. The model results show that the Kuzigun Valley contained ice volumes of 5.713 +/- 0.005, 4.874 +/- 0.005 and 3.631 +/- 0.004 km3 with equilibrium line altitude-lowering values of approximate to 500, approximate to 560 and approximate to 610m in the three successive glacial stages, respectively. By referencing the climatic 18O proxy records, we conclude that temperature decreased by 5-8, approximate to 4 and <4 degrees C with precipitation levels of 30-70, approximate to 100 and >140% modern values in the Kuzigun, Hangdi and Tashkurgan glacial stages, respectively. Our climatic estimates for the Kuzigun stage are generally consistent with previous studies that showed the Last Glacial Maximum climate was 4-9 degrees C colder than today on the Tibetan Plateau. More accurate climate proxies are needed for evaluating our modelled Tashkurgan climatic conditions.
关键词	EQUILIBRIUM-LINE UINTA MOUNTAINS EXPOSURE AGES ASIAN MONSOON MASS-BALANCE ICE CORES MAXIMUM PRECIPITATION BE-10 INFERENCES
英文关键词	glacial extent; glacier modelling; Kuzigun Valley; last glacial cycle; palaeoclimate
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000337508100007
来源期刊	JOURNAL OF QUATERNARY 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/258308
推荐引用方式 GB/T 7714	Xu, Xiangke,Dong, Guocheng,Pan, Baolin. Modelling glacier advances and related climate conditions during the last glaciation cycle in the Kuzigun Valley, Tashkurgan catchment, on the north-west Tibetan Plateau[J]. 中国科学院青藏高原研究所,2014,29(3).
APA	Xu, Xiangke,Dong, Guocheng,&Pan, Baolin.(2014).Modelling glacier advances and related climate conditions during the last glaciation cycle in the Kuzigun Valley, Tashkurgan catchment, on the north-west Tibetan Plateau.JOURNAL OF QUATERNARY SCIENCE,29(3).
MLA	Xu, Xiangke,et al."Modelling glacier advances and related climate conditions during the last glaciation cycle in the Kuzigun Valley, Tashkurgan catchment, on the north-west Tibetan Plateau".JOURNAL OF QUATERNARY SCIENCE 29.3(2014).