Dynamics of glacier surface velocity and ice thickness for maritime glaciers in the southeastern Tibetan Plateau

doi:10.1016/j.jhydrol.2020.125527

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地表生过程与生态调控重点实验室

	Dynamics of glacier surface velocity and ice thickness for maritime glaciers in the southeastern Tibetan Plateau
	Wu Kunpeng 2,3,4; Liu Shiyin 2,3; Zhu Yu 2,3; Liu Qiao 5; Jiang Zongli 1
刊名	Journal of Hydrology
	2020
卷号	590 页码:125527
关键词	Surface velocity Ice thickness Maritime glacier Ice deformation Basal sliding
ISSN号	0022-1694
DOI	10.1016/j.jhydrol.2020.125527
通讯作者	Wu, Kunpeng(wukunpeng@ynu.edu.cn) ; Liu, Shiyin(shiyin.liu@ynu.edu.cn)
产权排序	4
文献子类	Article
英文摘要	Influenced by climate warming, glacial hazards become increasingly frequent after glacier mass loss in the southeastern Tibetan Plateau. Investigations of mountain glacier surface velocities and volume are of great significance. However, no information is given regarding the specific changes in ice flow to climate warming, the spatiotemporal variations of glacier surface velocity and ice thickness are still unclear. In this study, offset tracking was used to measure glacier surface velocity in the southeastern Tibetan Plateau using Landsat TM/ETM +/OLI imagery from 1990 to 2018. And then spatially-distributed glacier ice thickness was estimated from mass-balance distribution data, glacier surface velocities and the principles of ice-flow. Results show that all maritime glaciers velocity in study area experienced a clear regional slowdown from 1991 to 2018, with robust overall trends of -5.26 m a(-1) dec(-1) (-19.8% dec(-1)) and 7.16 m a(-1) dec(-1) (25.2% dec(-1)) at elevations below and above 4 600 m a.s.l., respectively. Total volume for glaciers with an area of 954.34 km(2) was found to be similar to 86.64 +/- 11.09 km(3) in 2013, corresponding to an average ice thickness of similar to 91 +/- 12 m. The average ice thickness thinned by 0.62% a(-1) during 2000-2013, and an accelerated melting can be expected in the long term and then glacier volume decreases more rapidly than in the last decades.
电子版国际标准刊号	1879-2707
资助项目	Fundamental Programme of the National Natural Science Foundation of China[41801031] ; Fundamental Programme of the National Natural Science Foundation of China[41761144075] ; Second Tibetan Plateau Scientific Expedtion and Research Program (STEP)[2019QZKK0208] ; project of the State Key Laboratory of Cryospheric Science[SKLCS-OP-2019-07] ; grant for talent introduction of Yunnan University[YJRC3201702]
WOS关键词	DEBRIS-COVERED GLACIERS ; MASS-BALANCE ; BRANCH LINES ; SURGE ; TOPOGRAPHY ; SLOWDOWN ; ENERGY ; LENGTH ; AGE
WOS研究方向	Engineering ; Geology ; Water Resources
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000599754500225
资助机构	Fundamental Programme of the National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedtion and Research Program (STEP) ; project of the State Key Laboratory of Cryospheric Science ; grant for talent introduction of Yunnan University
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/46663]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者	Wu Kunpeng; Liu Shiyin
作者单位	1.Department of Geography, Hunan University of Science and Technology, Xiangtan; 411201, China 2.Institute of International Rivers and Eco-Security, Yunnan University, Kunming, China; 3.Yunnan Key Laboratory of International Rivers and Transboundary Eco-Security, Yunnan University, Kunming, China; 4.State Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China; 5.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China;
推荐引用方式 GB/T 7714	Wu Kunpeng,Liu Shiyin,Zhu Yu,et al. Dynamics of glacier surface velocity and ice thickness for maritime glaciers in the southeastern Tibetan Plateau[J]. Journal of Hydrology,2020,590:125527.
APA	Wu Kunpeng,Liu Shiyin,Zhu Yu,Liu Qiao,&Jiang Zongli.(2020).Dynamics of glacier surface velocity and ice thickness for maritime glaciers in the southeastern Tibetan Plateau.Journal of Hydrology,590,125527.
MLA	Wu Kunpeng,et al."Dynamics of glacier surface velocity and ice thickness for maritime glaciers in the southeastern Tibetan Plateau".Journal of Hydrology 590(2020):125527.