Articles | Volume 16, issue 8
https://doi.org/10.5194/tc-16-3123-2022
https://doi.org/10.5194/tc-16-3123-2022
Research article
 | 
03 Aug 2022
Research article |  | 03 Aug 2022

Surge dynamics of Shisper Glacier revealed by time-series correlation of optical satellite images and their utility to substantiate a generalized sliding law

Flavien Beaud, Saif Aati, Ian Delaney, Surendra Adhikari, and Jean-Philippe Avouac

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Cited articles

Aati, S. and Avouac, J.-P.: Optimization of optical image geometric modeling, application to topography extraction and topographic change measurements using PlanetScope and SkySat imagery, Remote Sensing, 12, 3418, https://doi.org/10.3390/rs12203418, 2020. a, b, c
Abe, T. and Furuya, M.: Winter speed-up of quiescent surge-type glaciers in Yukon, Canada, The Cryosphere, 9, 1183–1190, https://doi.org/10.5194/tc-9-1183-2015, 2015. a, b
Adhikari, S., Ivins, E., and Larour, E.: Mass transport waves amplified by intense Greenland melt and detected in solid Earth deformation, Geophys. Res. Lett., 44, 4965–4975, 2017. a
Armstrong, W. H., Anderson, R. S., and Fahnestock, M. A.: Spatial patterns of summer speedup on South central Alaska glaciers, Geophys. Res. Lett., 44, 9379–9388, 2017. a
Avouac, J.-P. and Leprince, S.: Geodetic imaging using optical systems, in: Reference Module in Earth Systems and Environmental Sciences, 387–424, Elsevier, https://doi.org/10.1016/B978-0-444-53802-4.00067-1, 2015. a
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Short summary
Understanding sliding at the bed of glaciers is essential to understand the future of sea-level rise and glacier-related hazards. Yet there is currently no universal law to describe this mechanism. We propose a universal glacier sliding law and a method to qualitatively constrain it. We use satellite remote sensing to create velocity maps over 6 years at Shisper Glacier, Pakistan, including its recent surge, and show that the observations corroborate the generalized theory.