CCPortal
DOI10.1038/s41561-017-0039-7
Massive collapse of two glaciers in western Tibet in 2016 after surge-like instability
Kaab, Andreas; Leinss, Silvan; Gilbert, Adrien; Buhler, Yves; Gascoin, Simon; Evans, Stephen G.; Bartelt, Perry; Berthier, Etienne; Brun, Fanny; Chao, Wei-An; Farinotti, Daniel; Gimbert, Florent; Guo, Wanqin; Huggel, Christian; Kargel, Jeffrey S.; Leonard, Gregory J.; Tian, Lide; Treichler, Desiree; Yao, Tandong
发表日期2018
ISSN1752-0894
卷号11期号:2页码:114-+
英文摘要

Surges and glacier avalanches are expressions of glacier instability, and among the most dramatic phenomena in the mountain cryosphere. Until now, the catastrophic collapse of a glacier, combining the large volume of surges and mobility of ice avalanches, has been reported only for the 2002 130 x 10(6) m(3) detachment of Kolka Glacier (Caucasus Mountains), which has been considered a globally singular event. Here, we report on the similar detachment of the entire lower parts of two adjacent glaciers in western Tibet in July and September 2016, leading to an unprecedented pair of giant low-angle ice avalanches with volumes of 68 +/- 2 x 10(6) m(3) and 83 +/- 2 x 10(6) m(3). On the basis of satellite remote sensing, numerical modelling and field investigations, we find that the twin collapses were caused by climate-and weather-driven external forcing, acting on specific polythermal and soft-bed glacier properties. These factors converged to produce surge-like enhancement of driving stresses and massively reduced basal friction connected to subglacial water and fine-grained bed lithology, to eventually exceed collapse thresholds in resisting forces of the tongues frozen to their bed. Our findings show that large catastrophic instabilities of low-angle glaciers can happen under rare circumstances without historical precedent.


语种英语
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000423843600009
来源期刊NATURE GEOSCIENCE
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/322
推荐引用方式
GB/T 7714
Kaab, Andreas,Leinss, Silvan,Gilbert, Adrien,et al. Massive collapse of two glaciers in western Tibet in 2016 after surge-like instability[J]. 中国科学院青藏高原研究所,2018,11(2):114-+.
APA Kaab, Andreas.,Leinss, Silvan.,Gilbert, Adrien.,Buhler, Yves.,Gascoin, Simon.,...&Yao, Tandong.(2018).Massive collapse of two glaciers in western Tibet in 2016 after surge-like instability.NATURE GEOSCIENCE,11(2),114-+.
MLA Kaab, Andreas,et al."Massive collapse of two glaciers in western Tibet in 2016 after surge-like instability".NATURE GEOSCIENCE 11.2(2018):114-+.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Kaab, Andreas]的文章
[Leinss, Silvan]的文章
[Gilbert, Adrien]的文章
百度学术
百度学术中相似的文章
[Kaab, Andreas]的文章
[Leinss, Silvan]的文章
[Gilbert, Adrien]的文章
必应学术
必应学术中相似的文章
[Kaab, Andreas]的文章
[Leinss, Silvan]的文章
[Gilbert, Adrien]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。