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- Title
The Expanding of Proglacial Lake Amplified the Frontal Ablation of Jiongpu Co Glacier since 1985.
- Authors
Zhao, Xuanru; Cheng, Jinquan; Guan, Weijin; Zhang, Yuxuan; Cao, Bo
- Abstract
In High Mountain Asia, most glaciers and glacial lakes have undergone rapid variations throughout changes in the climate. Unlike land-terminating glaciers, lake-terminating glaciers show rapid shrinkage due to dynamic interactions between proglacial lakes and glacier dynamics. In this study, we conducted a detailed analysis of the changes in the surface elevation, velocity, and especially frontal ablation on Jiongpu Co lake-terminating glacier. The results show that the Jiongpu Co glacier has twice as much negative mass balance compared to other glaciers, and the annual surface velocity has anomalously increased (3.6 m a−1 per decade) while other glaciers show a decreased trend. The frontal ablation fraction in the net mass loss of the Jiongpu Co glacier increased from 26% to 52% with the accelerated expansion of the proglacial lake. All available evidence indicates the presence of positive feedback between the proglacial lake and its host glacier. Our findings highlight the existence of proglacial lake affects the spatial change patterns of the lake-terminating glacier. Furthermore, the ongoing enlargement of the lake area amplifies the changes associated with the evolution of the lake-terminating glacier.
- Subjects
ALPINE glaciers; GLACIERS; GLACIAL lakes; LAKES; CLIMATE change; NET losses; SURFACE analysis
- Publication
Remote Sensing, 2024, Vol 16, Issue 5, p762
- ISSN
2072-4292
- Publication type
Article
- DOI
10.3390/rs16050762