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A regional-scale assessment of Himalayan glacial lake changes using satellite observations from 1990 to 2015
Nie, Yong1,2; Sheng, Yongwei2; Liu, Qiao1; Liu, Linshan3; Liu, Shiyin4; Zhang, Yili3; Song, Chunqiao2
Corresponding Author聂勇
2017
Source PublicationREMOTE SENSING OF ENVIRONMENT
ISSN0034-4257
EISSN1879-0704
Volume189Pages:1-13
SubtypeArticle
Abstract

The Himalaya, theworld's highest mountain ranges, are hometo a large group of glaciers and glacial lakes. Glacial lake outburst floods (GLOFs) in this region have resulted in catastrophic damages and fatalities in the past decades. The recent warming has caused dramatic glacial lake changes and increased potential GLOF risk in the Himalaya. However, our knowledge on the current state and change of glacial lakes in the entire Himalaya is limited. This study maps the current (2015) distribution of glacial lakes across the entire Himalaya and monitors the spatially-explicit evolution of glacial lakes over five time periods from 1990 to 2015 using a total of 348 Landsat images at 30mresolution. The results showthat 4950 glacial lakes in 2015 cover a total area of 455.3±72.7km2, mainly located between 4000mand 5700mabove sea level. Himalayan glacial lakes expanded by approximately 14.1% from1990 to 2015. The changing patterns of supraglacial lakes and proglacial lakes are rather complex, involving both lake disappearance and emergence.Many emergent glacial lakes are found at higher elevations, especially the new proglacial lakes, which have formed as a result of glacier retreat. Spatially heterogeneous changes of Himalayan glacial lakes are observed, with the most significant expansion occurring in the southern slopes of the central Himalaya. Increasing glacier meltwater induced by the Himalayan atmospheric warming is a primary cause for the observed lake expansion. This study provides primary data for future GLOF risk assessments.  A total of 118 rapidly expanded glacial lakes are identified as potential vulnerable lakes for the priority of risk assessment.

; The Himalaya, the world's highest mountain ranges, are home to a large group of glaciers and glacial lakes. Glacial lake outburst floods (GLOFs) in this region have resulted in catastrophic damages and fatalities in the past decades. The recent warming has caused dramatic glacial lake changes and increased potential GLOF risk in the Himalaya. However, our knowledge on the current state and change of glacial lakes in the entire Himalaya is limited. This study maps the current (2015) distribution of glacial lakes across the entire Himalaya and monitors the spatially-explicit evolution of glacial lakes over five time periods from 1990 to 2015 using a total of 348 Landsat images at 30 m resolution. The results show that 4950 glacial lakes in 2015 cover a total area of 455.3 +/- 72.7 km(2), mainly located between 4000 m and 5700 m above sea level. Himalayan glacial lakes expanded by approximately 14.1% from 1990 to 2015. The changing patterns of supraglacial lakes and proglacial lakes are rather complex, involving both lake disappearance and emergence. Many emergent glacial lakes are found at higher elevations, especially the new proglacial lakes, which have formed as a result of glacier retreat. Spatially heterogeneous changes of Himalayan glacial lakes are observed, with the most significant expansion occurring in the southern slopes of the central Himalaya. Increasing glacier meltwater induced by the Himalayan atmospheric warming is a primary cause for the observed lake expansion. This study provides primary data for future GLOF risk assessments. A total of 118 rapidly expanded glacial lakes are identified as potential vulnerable lakes for the priority of risk assessment. (C) 2016 Elsevier Inc All rights reserved.
KeywordLandsat Glacial Lake Glacier Climate Change Himalaya
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Technology
DOI10.1016/j.rse.2016.11.008
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Remote Sensing ; Imaging Science & Photographic Technology
Indexed BySCI
WOS KeywordDIGITAL ELEVATION MODELS ; DEBRIS-COVERED GLACIERS ; MOUNT EVEREST REGION ; OUTBURST FLOODS ; SUPRAGLACIAL LAKES ; CORDILLERA BLANCA ; TOPOGRAPHIC DATA ; TIBETAN PLATEAU ; LANDSAT IMAGERY ; RAPID EXPANSION
Language英语
Quartile1区
TOP
WOS SubjectEnvironmental Sciences ; Remote Sensing ; Imaging Science & Photographic Technology
WOS IDWOS:000393005400001
Funding OrganizationNational Natural Science Foundation of China(41571104 ; U.S. Geological Survey (USGS) Landsat Science Team Program(G12PC00071) ; China Scholarship Council (CSC)(20140491029) ; 41371094 ; 41101082)
Accession numberAccession number:20164903084583
Citation statistics
Cited Times:117[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/17759
Collection数字山地与遥感应用中心
山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
2.Univ Calif Los Angeles, Dept Geog, Los Angeles, CA 90095 USA
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
4.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryosphere Sci, Lanzhou 730000, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Nie, Yong,Sheng, Yongwei,Liu, Qiao,et al. A regional-scale assessment of Himalayan glacial lake changes using satellite observations from 1990 to 2015[J]. REMOTE SENSING OF ENVIRONMENT,2017,189:1-13.
APA Nie, Yong.,Sheng, Yongwei.,Liu, Qiao.,Liu, Linshan.,Liu, Shiyin.,...&Song, Chunqiao.(2017).A regional-scale assessment of Himalayan glacial lake changes using satellite observations from 1990 to 2015.REMOTE SENSING OF ENVIRONMENT,189,1-13.
MLA Nie, Yong,et al."A regional-scale assessment of Himalayan glacial lake changes using satellite observations from 1990 to 2015".REMOTE SENSING OF ENVIRONMENT 189(2017):1-13.
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