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Glacier Change, Supraglacial Debris Expansion and Glacial Lake Evolution in the Gyirong River Basin, Central Himalayas, between 1988 and 2015

文献类型：期刊论文

作者Jiang, Sheng1,2; Nie, Yong2,3; Liu, Qiao2,3,4; Wang, Jida5; Liu, Linshan6; Hassan, Javed7; Liu, Xiangyang1; Xu, Xia1
刊名REMOTE SENSING
出版日期2018-07-01
卷号10期号:7页码:18
关键词debris cover GLOFs remote sensing climate change the Himalayas Gyirong Pass
ISSN号2072-4292
DOI10.3390/rs10070986
通讯作者Nie, Yong(nieyong@imde.ac.cn)
英文摘要Himalayan glacier changes in the context of global climate change have attracted worldwide attention due to their profound cryo-hydrological ramifications. However, an integrated understanding of the debris-free and debris-covered glacier evolution and its interaction with glacial lake is still lacking. Using one case study in the Gyirong River Basin located in the central Himalayas, this paper applied archival Landsat imagery and an automated mapping method to understand how glaciers and glacial lakes interactively evolved between 1988 and 2015. Our analyses identified 467 glaciers in 1988, containing 435 debris-free and 32 debris-covered glaciers, with a total area of 614.09 +/- 36.69 km(2). These glaciers decreased by 16.45% in area from 1988 to 2015, with an accelerated retreat rate after 1994. Debris-free glaciers retreated faster than debris-covered glaciers. As a result of glacial downwasting, supraglacial debris coverage expanded upward by 17.79 km2 (24.44%). Concurrent with glacial retreat, glacial lakes increased in both number (+41) and area (+54.11%). Glacier-connected lakes likely accelerated the glacial retreat via thermal energy transmission and contributed to over 15% of the area loss in their connected glaciers. On the other hand, significant glacial retreats led to disconnections from their proglacial lakes, which appeared to stabilize the lake areas. Continuous expansions in the lakes connected with debris-covered glaciers, therefore, need additional attention due to their potential outbursts. In comparison with precipitation variation, temperature increase was the primary driver of such glacier and glacial lake changes. In addition, debris coverage, size, altitude, and connectivity with glacial lakes also affected the degree of glacial changes and resulted in the spatial heterogeneity of glacial wastage across the Gyirong River Basin.
WOS关键词MOUNT EVEREST REGION ; 3 GORGES DAM ; OUTBURST FLOODS ; COVERED GLACIERS ; SPATIAL VARIABILITY ; SATELLITE IMAGERY ; EASTERN HIMALAYA ; RAPID EXPANSION ; SOUTHEAST TIBET ; NEPAL HIMALAYA
资助项目National Natural Science Foundation of China[41571104] ; CAS STS Program[KFJ-STS-ZDTP-015] ; CAS Light of West China Program ; CPC Sichuan Provincial Committee Organization Department Talents Program ; CAS IMHE 135 Program[SDS-135-1708]
WOS研究方向Remote Sensing
语种英语
WOS记录号WOS:000440332500009
出版者MDPI
资助机构National Natural Science Foundation of China ; CAS STS Program ; CAS Light of West China Program ; CPC Sichuan Provincial Committee Organization Department Talents Program ; CAS IMHE 135 Program
源URL[http://ir.igsnrr.ac.cn/handle/311030/54505]  
专题中国科学院地理科学与资源研究所
通讯作者Nie, Yong
作者单位1.Sichuan Normal Univ, Fac Geog & Resource Sci, Chengdu 610101, Sichuan, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.SinoNepal Joint Res Ctr Geog, Chengdu 610041, Sichuan, Peoples R China
5.Kansas State Univ, Dept Geog, Manhattan, KS 66506 USA
6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
7.Karakoram Int Univ, Dept Earth Sci, Gilgit Baltistan 15100, Pakistan
推荐引用方式
GB/T 7714		 Jiang, Sheng,Nie, Yong,Liu, Qiao,et al. Glacier Change, Supraglacial Debris Expansion and Glacial Lake Evolution in the Gyirong River Basin, Central Himalayas, between 1988 and 2015[J]. REMOTE SENSING,2018,10(7):18.
APA Jiang, Sheng.,Nie, Yong.,Liu, Qiao.,Wang, Jida.,Liu, Linshan.,...&Xu, Xia.(2018).Glacier Change, Supraglacial Debris Expansion and Glacial Lake Evolution in the Gyirong River Basin, Central Himalayas, between 1988 and 2015.REMOTE SENSING,10(7),18.
MLA Jiang, Sheng,et al."Glacier Change, Supraglacial Debris Expansion and Glacial Lake Evolution in the Gyirong River Basin, Central Himalayas, between 1988 and 2015".REMOTE SENSING 10.7(2018):18.

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来源：地理科学与资源研究所

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