The Cryosphere
The Cryosphere
TC
Articles | Volume 19, issue 9
Articles | Volume 19, issue 9
https://doi.org/10.5194/tc-19-3459-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-19-3459-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 9
Research article
 | 
03 Sep 2025
Research article |  | 03 Sep 2025

Modelling the evolution of permafrost temperatures and active layer thickness in King George Island, Antarctica, since 1950

Joana Pedro Baptista, Gonçalo Brito Guapo Teles Vieira, António Manuel de Carvalho Soares Correia, Hyoungseok Lee, and Sebastian Westermann

Data sets

Parameters files, forcing data and observatory data used in "Modelling the evolution of permafrost temperatures and active layer thickness in King George Island, Antarctica, since 1950" Joana Baptista https://doi.org/10.5281/zenodo.16949851

Model code and software

Parameter files and code for simulations in "The CryoGrid community model – a multiphysics toolbox for climate-driven simulations in the terrestrial cryosphere", GMD-2022-127 Sebastian Westermann https://doi.org/10.5281/zenodo.6522424

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Short summary
Permafrost underlies ice-free areas of Antarctica, but its response to long-term warming is unclear due to a limited number of monitoring sites. To address this, we used the CryoGrid model, forced with climate data, to estimate permafrost temperatures and active layer thickness at King Sejong Station since 1950. The results show ground temperatures rising 0.25 °C per decade and the active layer thickening by 2 m. Warming has accelerated since 2015, highlighting the need for continued monitoring.
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