Preprints
https://doi.org/10.5194/egusphere-2024-2662
https://doi.org/10.5194/egusphere-2024-2662
12 Sep 2024
 | 12 Sep 2024

Brief communication: Potential of satellite optical imagery to monitor glacier surface flow velocity variability in the tropical Andes

Etienne Ducasse, Romain Millan, Jonas Kvist Andersen, and Antoine Rabatel

Abstract. We present the first analysis of glacier dynamics in the tropical Andes of Peru and Bolivia using satellite data from 2013 to 2022. Despite the challenges posed by small-size glacier, low velocities and high cloudiness during the monsoon, we map annually aggregated surface velocities and quantify the seasonal variability in the fastest parts of the glaciers. Limited trends are observed on the annual velocities over the last decade, but significant seasonal changes between the wet and the dry seasons are found, likely controlled by the seasonality in melt water production and the related changes in the hydrological conditions at the glacier-bedrock interface.

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Journal article(s) based on this preprint

26 Feb 2025
Brief communication: Potential of satellite optical imagery to monitor glacier surface flow velocity variability in the tropical Andes
Etienne Ducasse, Romain Millan, Jonas Kvist Andersen, and Antoine Rabatel
The Cryosphere, 19, 911–917, https://doi.org/10.5194/tc-19-911-2025,https://doi.org/10.5194/tc-19-911-2025, 2025
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The requested preprint has a corresponding peer-reviewed final revised paper. You are encouraged to refer to the final revised version.

Short summary
Our study examines glacier movement in the tropical Andes from 2013 to 2022 using satellite...
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