气候变化领域集成服务门户(CCPortal): Geometric similarity of the twin collapsed glaciers in the west Tibet

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DOI	10.1515/geo-2020-0316
	Geometric similarity of the twin collapsed glaciers in the west Tibet
	Hu, Wentao; Yao, Tandong
通讯作者	Yao, TD (通讯作者)
发表日期	2021
ISSN	2391-5447
起始页码	1463
结束页码	1475
卷号	13 期号:1
英文摘要	Two adjacent glaciers collapsed consecutively in the Western Xizang Autonomous Region, China, on July 17 and September 21, 2016, presumably triggered by relatively intensive climate change in this region, leading to massive downstream ice and mud avalanches. After these twin glacier collapses, there have been many researches, which mainly focus on the physical charac-teristics of these two glaciers while lack the differences between them and the other glaciers. In this study, the geometric features and energy distribution along the gla-cier centerlines are investigated to identify the differ-ences between these two collapsed glaciers and other glaciers in the western Tibetan Plateau. The anomaly of climate change is presumed to be the trigger of the twin glacier collapses in accordance with existing research results, whereas in this study, the striking geometric similarity between the centerlines of the twin glaciers, which is quantitatively interpreted by the Frechet dis-tance among the glacier centerlines, unearth some novel mechanisms. The essential point in these new mechanisms is the energy distribution along the glacier centerlines. A hypothesis based on the principle of energy conservation is derived to demonstrate the mechanisms and dynamic pro-cesses of the glacier collapses. Furthermore, on the basis of the geometric similarity and energy distribution of the gla-cier centerlines, a risk assessment of glacier collapse in the western Tibetan Plateau is implemented to facilitate glacier disaster prevention.
关键词	PARTICLE FUTURE MODEL
英文关键词	glacier collapses; OGGM; geometric similarity; Frechet distance; western Tibetan Plateau; glacier centerlines
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000723697500001
来源期刊	OPEN GEOSCIENCES
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/260144
推荐引用方式 GB/T 7714	Hu, Wentao,Yao, Tandong. Geometric similarity of the twin collapsed glaciers in the west Tibet[J]. 中国科学院青藏高原研究所,2021,13(1).
APA	Hu, Wentao,&Yao, Tandong.(2021).Geometric similarity of the twin collapsed glaciers in the west Tibet.OPEN GEOSCIENCES,13(1).
MLA	Hu, Wentao,et al."Geometric similarity of the twin collapsed glaciers in the west Tibet".OPEN GEOSCIENCES 13.1(2021).