The Cryosphere
The Cryosphere
TC
Articles | Volume 19, issue 12
Articles | Volume 19, issue 12
https://doi.org/10.5194/tc-19-6483-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-19-6483-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 12
Brief communication
 | 
03 Dec 2025
Brief communication |  | 03 Dec 2025

Brief communication: Annual variability of the atmospheric circulation at large spatial scale reconstructed from a data assimilation framework cannot explain local East Antarctic ice rises' surface mass balance records

Marie G. P. Cavitte, Hugues Goosse, Quentin Dalaiden, and Nicolas Ghilain

Supplement

https://doi.org/10.5194/tc-19-6483-2025-supplement

Data sets

Gridded surface mass balance derived from shallow radar stratigraphy over eight ice rises along the Dronning Maud Land coast and one site in the Dome Fuji region, Antarctica Marie Cavitte https://doi.org/10.14428/DVN/J34MQO

MASS2ANT Snowfall Dataset (Downscaling @5.5km over Dronning Maud Land, Antarctica, 1850 - 2014) (1.0) N. Ghilain et al. https://doi.org/10.5281/zenodo.4287517

MASS2ANT Surface (10 meters height ) wind field Dataset (Downscaling CESM2 @5.5km over Dronning Maud Land, Antarctica, 1850 - 2014) N. Ghilain and M. Cavitte https://doi.org/10.5281/zenodo.17366618

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Short summary
Ice cores are influenced by local processes that alter SMB (surface mass balance) records. To evaluate if atmospheric circulation on large spatial scales can explain differing snowfall trends at 8 East Antarctic ice rises, we assimilated their ice core SMB records within a high-resolution downscaled atmospheric model with quantified local errors from radar constraints. The reconstruction captures the SMB records’ variability but may over-fit by introducing unrealistic spatial heterogeneity.
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