Articles | Volume 15, issue 12
The Cryosphere, 15, 5483–5512, 2021
https://doi.org/10.5194/tc-15-5483-2021
The Cryosphere, 15, 5483–5512, 2021
https://doi.org/10.5194/tc-15-5483-2021
Research article
10 Dec 2021
Research article | 10 Dec 2021

Advances in altimetric snow depth estimates using bi-frequency SARAL and CryoSat-2 Ka–Ku measurements

Florent Garnier et al.

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Short summary
Snow depth data are essential to monitor the impacts of climate change on sea ice volume variations and their impacts on the climate system. For that purpose, we present and assess the altimetric snow depth product, computed in both hemispheres from CryoSat-2 and SARAL satellite data. The use of these data instead of the common climatology reduces the sea ice thickness by about 30 cm over the 2013–2019 period. These data are also crucial to argue for the launch of the CRISTAL satellite mission.