气候变化领域集成服务门户(CCPortal): Ages of major Little Ice Age glacier fluctuations on the southeast Tibetan Plateau derived from tree-ring-based moraine dating

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DOI	10.1016/j.palaeo.2015.01.002
	Ages of major Little Ice Age glacier fluctuations on the southeast Tibetan Plateau derived from tree-ring-based moraine dating
	Hochreuther, Philipp; Loibl, David; Wernicke, Jakob; Zhu, Haifeng; Griessinger, Jussi; Braeuning, Achim
通讯作者	Hochreuther, P (通讯作者)
发表日期	2015
ISSN	0031-0182
EISSN	1872-616X
起始页码	1
结束页码	10
卷号	422
英文摘要	Advances and retreats of glaciers on the Tibetan Plateau (TP) are widely regarded as indicators for climate changes sensitive to macroclimatic forcing mechanisms like the Asian summer monsoon. However, it often remains unclear why some glaciers retreat or advance earlier than others, particularly regarding the timing of the so-called 'Little Ice Age (LIA) maximum'. Within this study, we present newly acquired tree-ring data from four glacier forefields in the Nyainqentanglhg Range on the southeastern TP and link them to previous studies. Two of the glaciers formed a double-tongue moraine set during the LIA, with trees providing minimum ages for two different major glacier extents. In combination with evidence from a third glacier, three warm phases within the generally cold LIA can be deduced during the first half of the 16th century, and the mid-17th and 18th centuries. This implies the occurrence of three preceding major cold spells. A minor cool phase between 1790 and 1850 marks the end of the LIA on the southeast TP. Minimum ages for beginning retreat from the last major LIA glacial advance differ by only 40 years for all sampled monsoonal temperate valley glaciers in the Nyainqentanglha Range. This implies a common forcing, whose impact on glacier dynamics is only slightly altered by topographical factors or local climatic conditions. Regression analysis suggests that the delay of the glacier retreat from the maximum extent is mainly related to glacier size, with minor influence of ablation area aspect. All moraine ages highlight intermediate LIA warm phases on the southeast TP corresponding to warm phases on the northern Hemisphere and thus prove monsoonal temperate glaciers to be highly sensitive archives for northern hemispheric climatic conditions. (C) 2015 Elsevier B.V. All rights reserved.
关键词	EQUILIBRIUM-LINE ALTITUDES NYAINQENTANGLHA RANGE TEMPERATE GLACIER LATE QUATERNARY CLIMATE-CHANGE MASS-BALANCE PRECIPITATION RETREAT RECONSTRUCTION RADIOCARBON
英文关键词	Dendroglaciology; Tibetan Plateau; Glacier history; Tree rings; Moraine dating
语种	英语
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000350706500001
来源期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
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/258496
推荐引用方式 GB/T 7714	Hochreuther, Philipp,Loibl, David,Wernicke, Jakob,et al. Ages of major Little Ice Age glacier fluctuations on the southeast Tibetan Plateau derived from tree-ring-based moraine dating[J]. 中国科学院青藏高原研究所,2015,422.
APA	Hochreuther, Philipp,Loibl, David,Wernicke, Jakob,Zhu, Haifeng,Griessinger, Jussi,&Braeuning, Achim.(2015).Ages of major Little Ice Age glacier fluctuations on the southeast Tibetan Plateau derived from tree-ring-based moraine dating.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,422.
MLA	Hochreuther, Philipp,et al."Ages of major Little Ice Age glacier fluctuations on the southeast Tibetan Plateau derived from tree-ring-based moraine dating".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 422(2015).