Earth Observation
Earth Observation
EO
Articles | Volume 1, issue 1
Articles | Volume 1, issue 1
https://doi.org/10.5194/eo-1-15-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/eo-1-15-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 1, issue 1
Research article
 | 
29 Jul 2026
Research article |  | 29 Jul 2026

Inferring effective firn grain size across Antarctic ice shelves from ASCAT observations

Shashwat Shukla, Bert Wouters, Sanne Veldhuijsen, Sophie de Roda Husman, Weiran Li, and Stef Lhermitte

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Short summary
Antarctic ice shelves help slow ice flow into the ocean, but their stability depends partly on the upper firn layer. Air in firn affects how much meltwater can be stored, while grain size helps describe firn structure. We combined fifteen years of satellite radar data with physical models to estimate these properties across Antarctic ice shelves. Our results provide a new way to monitor conditions linked to meltwater build-up and possible instability.
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