Snow, Ice and Environment Over the Tibetan Plateau Zone I Versions ZH2
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Annual dataset for changes of Longbasaba Glacier in the Central Himalayas during 1988–2018
Dataset URL >>
: 2021 - 09 - 02
: 2021 - 09 - 23
: 2021 - 09 - 23
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Abstract & Keywords
Abstract: The lake-terminating glaciers are widely distributed in the central Himalayas. According to the impact of proglacial lakes, these glaciers exhibited a more sensitive response to climate change than others. The dataset of the bottom topography of the Longbasaba Glacier/Lake (GeoTIFF format) was constructed by utilizing the glacier thickness and in situ measurements of the water depths of Longbasaba Lake; boundaries of the glacial lake, glacier, and debris cover for the period 1988–2018 (Shapefile format) were extracted from Landsat TM\ETM+\OLI images, which were also utilized to extract the surface velocities. The dataset of mass change of this lake-terminating glacier from 1989 to 2018 was reconstructed by combining the surface mass budgets, surface velocities, and the terminal retreat. These data could be basic and calibration parameters for the glacial dynamic models of lake-terminating glaciers, and also be reference datasets for the studies of the response to climate change for glaciers with different types in the Himalayas.
Keywords: lake-terminating glaciers; glacier surface mass balance; glacier change; glacial mass balance model
Dataset Profile
TitleAnnual dataset for changes of Longbasaba Glacier in the Central Himalayas during 1988–2018
Data corresponding authorWEI Junfeng (weijunfeng@hnust.edu.cn)
Data authorsZHANG Te, WEI Junfeng, ZHANG Yong, WANG Xin, ZHENG Yajie
Time range1988–2018
Geographical scope27°86–27°95N, 88°07′–88°14′E
Spatial resolution30 m
Data volume6.44 MB
Data formatShapefile,GeoTIFF,*.rar,*.xlsx
Data service system<http://www.doi.org/10.11922/sciencedb.01116>
Sources of fundingNational Natural Science Foundation of China (Grant no. 41701061) and the research project of Hunan University of Science and Technology (Grant no. E51669).
Dataset compositionThe dataset consists of 6 subsets in tatal. (1) The boundary of Longbasaba glacier is named as Longbasaba_Glacier_Boundary.shp; (2) The boundary of Longbasaba glacier-lake is named as Longbasaba_Glacial-Lake_Boundary.shp; (3) The boundary of debris-cover on Longbasaba glacier is named as Longbasaba_Debris-Cover_Boundary.shp; (4) The dataset of surface velocity of Longbasaba glacier is named as Longbasaba_Glacier_Surface_Velocity.rar; (5) The dataset of glacier/lake basin topography is named as Long-basaba_Glacier_Basin.tif; (6) The dataset of glacier mass change is named as Longbasaba_Glacier_Mass_Change.xlsx.
Article and author information
Zhang Te
主要承担工作:冰川表面物质平衡模拟,冰川变化数据获取与整理,以及文档撰写。
Wei Junfeng
主要承担工作:数据处理流程的设计,冰川变化数据获取与整理,以及文稿撰写。
weijunfeng@hnust.edu.cn
Zhang Yong
主要承担工作:冰川能量-物质平衡模型设计与指导。
Wang Xin
主要承担工作:数据获取与分析指导。
Zheng Yajie
主要承担工作:冰川表碛热阻系数提取方法指导。
Publication records
Released: Sept. 23, 2021 ( VersionsZH2
References
中国科学数据
csdata