Ice, Snow and Environment Over High Asia Zone II Versions ZH3 Vol 3 (4) 2018
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A dataset of spatial distribution of debris cover on Hailuogou Glacier of Mount Gongga in 2009
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Abstract & Keywords
Abstract: Supraglacial debris cover on glaciers undergoes a unique thermal process relative to exposed snow and ice, the spatial distribution of which influences both the rates and spatial patterns of ice melting. Consequently, the responses of debris-covered glaciers to climate change are more complex compared to those of debris-free glaciers. However, insufficient debris thickness data make it difficult to analyze regional debris-cover effects in the Tibetan Plateau and its surroundings. In this study, the thermal resistances of debris layers on the Hailuogou Glacier, located on the eastern slope of Mount Gongga in southeastern Tibetan Plateau, were obtained from visible and near infrared and thermal infrared bands of ASTER images and solar radiation data, which can be used as a proxy for debris thickness over the ablation zone. These data, with a spatial resolution of 90 m, were stored in GeoTIFF format in 32-bit floating point. A comparison between high-resolution in situ measurements of debris thickness on the Hailuogou Glacier and ASTER-derived thermal resistances indicates that ASTER-derived thermal resistances correspond well with the spatial pattern of debris thickness, which can reflect large-scale variations in the extent and thickness of the debris cover. The dataset can be used as forcing data for the development of physically-based debris-cover melt models, and provides data support for systematic assessment of the debris-cover effect on debris-covered glaciers in the Tibetan Plateau and its surroundings.
Keywords: debris-covered glacier; debris cover; thermal resistance; Hailuogou Glacier; ASTER
Dataset Profile
TitleA dataset of spatial distribution of debris cover on Hailuogou Glacier of Mount Gongga in 2009
Data corresponding authorZhang Yong (yong.zhang@hnust.edu.cn)
Data authorsZhang Yong, Liu Shiyin, Wang Xin
Time rangeJanuary 2009
Geographical scope29°33′11″–29°35′29″N,101°55′4″–101°59′51″ E
Spatial resolution90 m
Data volume65 KB
Data format*.tif
Data service system< http://www.sciencedb.cn/dataSet/handle/597>
Sources of fundingNational Natural Science Foundation of China (41701087; 41761144075; 41771075); Fundamental Program of the Ministry of Science and Technology of China (MOST) (2013FY111400); Research Funds for New Talents of Yunnan University (YJRC3201702).
Dataset compositionThis dataset consists of the thermal resistances of debris layer on the ablation area of Hailuogou Glacier, with a data volume of about 65 KB.
Article and author information
Yong Zhang
主要承担工作:表碛热阻系数的计算、数据分析。
yong.zhang@hnust.edu.cn
Shiyin Liu
主要承担工作:数据处理流程的设计。
Xin Wang
主要承担工作:数据质量分析。
Publication records
Released: May 30, 2018 ( VersionsZH2
Published: Nov. 19, 2018 ( VersionsZH3
References
中国科学数据
csdata