气候变化领域集成服务门户(CCPortal): Characterizing the behaviour of surge-type glaciers in the Geladandong Mountain Region, Inner Tibetan Plateau, from 1986 to 2020

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DOI	10.1016/j.geomorph.2021.107806
	Characterizing the behaviour of surge-type glaciers in the Geladandong Mountain Region, Inner Tibetan Plateau, from 1986 to 2020
	Gao, Yongpeng; Liu, Shiyin; Qi, Miaomiao; Zhu, Yu; Xie, Fuming; Wu, Kunpeng; Jiang, Zongli
通讯作者	Liu, SY (通讯作者)，Yunnan Univ, Inst Int Rivers & Ecosecur, Kunming 650091, Yunnan, Peoples R China.
发表日期	2021
ISSN	0169-555X
EISSN	1872-695X
卷号	389
英文摘要	Although surging glaciers in the Geladandong Mountain region represent a small percentage of the Qinghai-Tibet Plateau's glacier population, they can provide valuable insight into the glacier processes, flow instabilities, and fast glacier flow. Here we identify 11 surge-type glaciers and reported the observations of surging behaviour in this region by mapping changes in the terminus position, surface velocity, and elevation of glaciers, using a combination of Landsat and ASTER satellite imagery from 1986 to 2020, TerraSAR-X/TanDEM-X, NASADEM, and topographic maps. Among the 11 surge-type glaciers, nine glaciers started to surge in the 1980s and 1990s, and two glaciers began to surge after 2000. In total, we present 22 surface velocity data sets, which show that the active phases usually last 10-19 years and peak surge velocities are between 30 +/- 1.26 m a(-1) and 100 +/- 1.26 m a(-1). The acceleration phases at the beginning can last for several years, and the deceleration phases at the end last for a maximum of 2 years, and the flow velocity in summer is greater than that in winter. Under the background of global climate warming, no single process is responsible for glacier surges in the Geladandong Mountain region. The dynamic evolution of glacier surges does not fit neatly within either of the classically cited thermal or hydrological models of surging. We hypothesize that the recent glacier surges may be caused by multiple factors. (C) 2021 Elsevier B.V. All rights reserved.
关键词	WEST KUNLUN SHAN MASS-BALANCE CO-REGISTRATION CLIMATE-CHANGE TANDEM-X INVENTORY KARAKORAM ELEVATION DYNAMICS AREA
英文关键词	Glacier surges; Geladandong Mountain region; Change of glacier surface elevation; Glacier velocity; Surge mechanisms
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000685523800002
来源期刊	GEOMORPHOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254447
作者单位	[Gao, Yongpeng; Liu, Shiyin; Qi, Miaomiao; Zhu, Yu; Xie, Fuming; Wu, Kunpeng] Yunnan Univ, Yunnan Key Lab Int Rivers & Transboundary Ecosecu, Kunming 650091, Yunnan, Peoples R China; [Gao, Yongpeng; Liu, Shiyin; Qi, Miaomiao; Zhu, Yu; Xie, Fuming; Wu, Kunpeng] Yunnan Univ, Inst Int Rivers & Ecosecur, Kunming 650091, Yunnan, Peoples R China; [Liu, Shiyin] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China; [Jiang, Zongli] Hunan Univ Sci & Technol, Sch Resource Environm & Safety Engn, Xiangtan 411201, Peoples R China
推荐引用方式 GB/T 7714	Gao, Yongpeng,Liu, Shiyin,Qi, Miaomiao,et al. Characterizing the behaviour of surge-type glaciers in the Geladandong Mountain Region, Inner Tibetan Plateau, from 1986 to 2020[J]. 中国科学院西北生态环境资源研究院,2021,389.
APA	Gao, Yongpeng.,Liu, Shiyin.,Qi, Miaomiao.,Zhu, Yu.,Xie, Fuming.,...&Jiang, Zongli.(2021).Characterizing the behaviour of surge-type glaciers in the Geladandong Mountain Region, Inner Tibetan Plateau, from 1986 to 2020.GEOMORPHOLOGY,389.
MLA	Gao, Yongpeng,et al."Characterizing the behaviour of surge-type glaciers in the Geladandong Mountain Region, Inner Tibetan Plateau, from 1986 to 2020".GEOMORPHOLOGY 389(2021).