气候变化领域集成服务门户(CCPortal): Thinning and surface mass balance patterns of two neighbouring debris-coveredglaciers in the southeastern Tibetan Plateau

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DOI	10.5194/tc-17-3895-2023
	Thinning and surface mass balance patterns of two neighbouring debris-coveredglaciers in the southeastern Tibetan Plateau
	Zhao, Chuanxi; Yang, Wei; Miles, Evan; Westoby, Matthew; Kneib, Marin; Wang, Yongjie; He, Zhen; Pellicciotti, Francesca
发表日期	2023
ISSN	1994-0416
EISSN	1994-0424
起始页码	3895
结束页码	3913
卷号	17 期号:9
英文摘要	Debris-covered glaciers are a common feature of the mountain cryosphere in the southeastern Tibetan Plateau. A better understanding of these glaciers is necessary to reduce the uncertainties in regional water resource variability and to anticipate potential cryospheric risks. In this study, we quantified the seasonal thinning and surface mass balance patterns of two neighbouring debris-covered glaciers (23K Glacier and 24K Glacier) in the southeastern Tibetan Plateau with four unpiloted aerial vehicle surveys and in situ measurements. We observed that the thinning of 23K Glacier was similar to 2-7 times greater than that of the 24K Glacier for annual and cold periods. The surface velocity of the 24K Glacier is higher than that of the 23K Glacier (similar to 5-6 times) for all periods. In contrast with the thinning patterns, the surface mass balance patterns of the two glaciers closely agree across the different periods. We found that the surface mass balance distribution strongly correlated with the spatial distribution of debris thickness for both glaciers. Ice cliffs and supraglacial ponds are prevalent on the surface of these glaciers (similar to 4.4-7.2 +/- 0.5 %) and enhance melt overall (enhancement factor: similar to 2.5) but do not control the surface mass balance pattern of either glacier. This comparison study of two neighbouring glaciers confirms the significance of both glacier dynamics and debris thickness in controlling thinning and melt for the different debris-covered glaciers of the southeastern Tibetan Plateau in the context of climate change.
英文关键词	FROM-MOTION PHOTOGRAMMETRY; CHANGRI NUP GLACIER; COVERED GLACIERS; ENERGY-BALANCE; ICE CLIFFS; LIRUNG GLACIER; NEPAL HIMALAYA; ROCK AVALANCHE; THICKNESS; MELT
WOS研究方向	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:001161824100001
来源期刊	CRYOSPHERE
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/283772
作者单位	Lanzhou University; Chinese Academy of Sciences; Institute of Tibetan Plateau Research, CAS; Swiss Federal Institutes of Technology Domain; Swiss Federal Institute for Forest, Snow & Landscape Research; ETH Zurich; Northumbria University; Swiss Federal Institutes of Technology Domain; ETH Zurich; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS
推荐引用方式 GB/T 7714	Zhao, Chuanxi,Yang, Wei,Miles, Evan,et al. Thinning and surface mass balance patterns of two neighbouring debris-coveredglaciers in the southeastern Tibetan Plateau[J]. 中国科学院青藏高原研究所,2023,17(9).
APA	Zhao, Chuanxi.,Yang, Wei.,Miles, Evan.,Westoby, Matthew.,Kneib, Marin.,...&Pellicciotti, Francesca.(2023).Thinning and surface mass balance patterns of two neighbouring debris-coveredglaciers in the southeastern Tibetan Plateau.CRYOSPHERE,17(9).
MLA	Zhao, Chuanxi,et al."Thinning and surface mass balance patterns of two neighbouring debris-coveredglaciers in the southeastern Tibetan Plateau".CRYOSPHERE 17.9(2023).