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Retreat rates of debris-covered and debris-free glaciers in the Koshi River Basin, central Himalayas, from 1975 to 2010
Xiang, Y (Xiang, Yang)1,2; Yao, TD (Yao, Tandong)2,3; Gao, Y (Gao, Yang)2,3; Zhang, GQ (Zhang, Guoqing)2,3; Wang, WC (Wang, Weicai)2,3; Tian, LD (Tian, Lide)2,3
Source PublicationENVIRONMENTAL EARTH SCIENCES
2018-04-01
Volume77Issue:7Pages:文献号 285
DOI10.1007/s12665-018-7457-8
Abstract

Debris-covered glaciers are common in the Himalayas and play a key role in understanding future regional water availability and management. Previous studies of regional glacial changes have often neglected debris-covered glaciers or have mixed them with debris-free glaciers. In this study, we generated a new glacier data set that includes debris-covered and debris-free glaciers to study the glacial surface area change in the Koshi River Basin in the central Himalayas. Long time-series Landsat data were used to extract the glacier boundaries using automatic and manual classification methods. The glacial area decreased by 10.4% from 1975 to 2010 at a rate of 0.30% a(-1), with accelerated melting since 2000 (0.47% a(-1)). Small glaciers melted faster than large glaciers. In terms of distinctive glacier types, debris-free glaciers shrank at a rate of 0.45% a(-1), faster than debris-covered glaciers (0.18% a(-1)), while debris-covered glaciers larger than 5.0 km(2) retreated at a rate faster than debris-free glaciers of the same-sized group. We also studied the potential interactions between 222 supraglacial lakes and debris-covered glaciers. Debris-covered glaciers with glacial lakes melt faster than glaciers without lakes. This study can improve our understanding of the differences in the changes between debris-covered and debris-free glaciers in the central Himalayas and help evaluate water resource changes in the Himalayas.

Subject Area地理学
WOS IDWOS:000429985900019
Language英语
Indexed BySCIE
KeywordRemote-sensing Data Tibetan Plateau Mt. Qomolangma Climate-change Mass-balance Everest Region Mount Everest Inventory Lakes Ablation
WOS Research AreaEnvironmental Sciences & Ecology ; Geology ; Water Resources
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
Cooperation Status国内
ISSN1866-6280
Department环境变化与地表过程重点实验室
PublisherSPRINGER
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8689
Collection图书馆
Corresponding AuthorXiang, Y (Xiang, Yang)
Affiliation1.Xian Univ Sci & Technol, Coll Geomat, Xian 710054, Shaanxi, Peoples R China;
2.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China;
3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China.
Recommended Citation
GB/T 7714
Xiang, Y ,Yao, TD ,Gao, Y ,et al. Retreat rates of debris-covered and debris-free glaciers in the Koshi River Basin, central Himalayas, from 1975 to 2010[J]. ENVIRONMENTAL EARTH SCIENCES,2018,77(7):文献号 285.
APA Xiang, Y ,Yao, TD ,Gao, Y ,Zhang, GQ ,Wang, WC ,&Tian, LD .(2018).Retreat rates of debris-covered and debris-free glaciers in the Koshi River Basin, central Himalayas, from 1975 to 2010.ENVIRONMENTAL EARTH SCIENCES,77(7),文献号 285.
MLA Xiang, Y ,et al."Retreat rates of debris-covered and debris-free glaciers in the Koshi River Basin, central Himalayas, from 1975 to 2010".ENVIRONMENTAL EARTH SCIENCES 77.7(2018):文献号 285.
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