气候变化领域集成服务门户(CCPortal): Glacier thickness and volume estimation in the Upper Indus Basin using modeling and ground penetrating radar measurements

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DOI	10.1017/aog.2024.2
	Glacier thickness and volume estimation in the Upper Indus Basin using modeling and ground penetrating radar measurements
	Romshoo, Shakil Ahmad; Abdullah, Tariq; Ameen, Ummer; Bhat, Mustafa Hameed
发表日期	2024
ISSN	0011-3891
起始页码	126
结束页码	4
卷号	126 期号:4
英文摘要	In the Himalaya, ice thickness data are limited, and field measurements are even scarcer. In this study, we employed the GlabTop model to estimate ice reserves in the Jhelum (1.9 +/- 0.6 km(3)) and Drass (2.9 +/- 0.9 km(3)) sub-basins of the Upper Indus Basin. Glacier ice thickness in the Jhelum ranged up to 187 +/- 56 m with a mean of similar to 24 +/- 7 m, while the Drass showed ice thickness up to 202 +/- 60 m, with a mean of similar to 17 +/- 5 m. Model results were validated using Ground Penetrating Radar measurements across four profiles in the ablation zone of the Kolahoi glacier in the Jhelum and nine profiles across the Machoi glacier in the Drass sub-basin. Despite underestimating ice-thickness by similar to 10%, the GlabTop model effectively captured glacier ice-thickness and spatial patterns in most of the profile locations where GPR measurements were taken. The validation showed high correlation coefficient of 0.98 and 0.87, low relative bias of similar to -13% and similar to -3% and a high Nash-Sutcliffe coefficient of 0.94 and 0.93 for the Kolahoi and Machoi glaciers, respectively, demonstrating the model's effectiveness. These ice-thickness estimates improve our understanding of glacio-hydrological, and glacial hazard processes over the Upper Indus Basin.
英文关键词	Distributed ice-thickness modeling; Glacier-volume and mass storage; GPR; Upper Indus Basin
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:001166800200001
来源期刊	CURRENT SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/298348
作者单位	University of Kashmir; University of Kashmir
推荐引用方式 GB/T 7714	Romshoo, Shakil Ahmad,Abdullah, Tariq,Ameen, Ummer,et al. Glacier thickness and volume estimation in the Upper Indus Basin using modeling and ground penetrating radar measurements[J],2024,126(4).
APA	Romshoo, Shakil Ahmad,Abdullah, Tariq,Ameen, Ummer,&Bhat, Mustafa Hameed.(2024).Glacier thickness and volume estimation in the Upper Indus Basin using modeling and ground penetrating radar measurements.CURRENT SCIENCE,126(4).
MLA	Romshoo, Shakil Ahmad,et al."Glacier thickness and volume estimation in the Upper Indus Basin using modeling and ground penetrating radar measurements".CURRENT SCIENCE 126.4(2024).