气候变化领域集成服务门户(CCPortal): Relationships between the heights of moraines and lengths of former glaciers in Tibet and surrounding mountains

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DOI	10.1016/j.geomorph.2008.04.023
	Relationships between the heights of moraines and lengths of former glaciers in Tibet and surrounding mountains
	Fu, Ping; Yi, Chaolu
通讯作者	Yi, CL (通讯作者)
发表日期	2009
ISSN	0169-555X
EISSN	1872-695X
起始页码	205
结束页码	211
卷号	103 期号:2
英文摘要	Reconstructions of the extent of Quaternary glaciations provide important knowledge of landform evolution on the Tibetan Plateau. The heights of moraines and the lengths of corresponding former glaciers in Tibet and its surrounding mountains were statistically analyzed using values for 141 observations collected from the literature and field measurements. The height of a moraine is defined as the difference between the elevation of the highest point of a lateral moraine and the elevation of the nearby valley bottom. The results show that the height of a lateral moraine is more closely related to the length of the former glacier than with the height of its end moraine. The lateral moraine was preserved better and more accurately represents the original shape of the moraine. The correlation between the height of a moraine and length of a glacier from lateral moraines in and areas is better than that in maritime areas. This results from better preservation in and areas. The high precipitation in the maritime areas results in stronger fluvial erosion and mass movement, and consequently is very effective in modifying and/or destroying moraines. The correlation between heights and lengths of lateral moraines is much better for Holocene than for older glaciations. Therefore, the correlation of the heights of Holocene lateral moraines to the lengths of glaciers is helpful for reconstructing the extent of Quaternary glaciation when end moraines are not preserved. This in turn is a first step towards assessing the relative importance of glaciers in landscape evolution across orogens. (C) 2008 Elsevier B.V. All rights reserved.
关键词	ICE-SHEET GLACIATION PLATEAU LANDFORMS HIMALAYA VALLEY EXTENT ANDES
英文关键词	Statistical analysis; Moraine height; Glacier length; Tibet
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000261726600006
来源期刊	GEOMORPHOLOGY
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/257620
推荐引用方式 GB/T 7714	Fu, Ping,Yi, Chaolu. Relationships between the heights of moraines and lengths of former glaciers in Tibet and surrounding mountains[J]. 中国科学院青藏高原研究所,2009,103(2).
APA	Fu, Ping,&Yi, Chaolu.(2009).Relationships between the heights of moraines and lengths of former glaciers in Tibet and surrounding mountains.GEOMORPHOLOGY,103(2).
MLA	Fu, Ping,et al."Relationships between the heights of moraines and lengths of former glaciers in Tibet and surrounding mountains".GEOMORPHOLOGY 103.2(2009).