The Cryosphere
The Cryosphere
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Articles | Volume 19, issue 9
Articles | Volume 19, issue 9
https://doi.org/10.5194/tc-19-4061-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-19-4061-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 9
Research article
 | 
29 Sep 2025
Research article |  | 29 Sep 2025

The surface mass balance and near-surface climate of the Antarctic ice sheet in RACMO2.4p1

Christiaan T. van Dalum, Willem Jan van de Berg, Michiel R. van den Broeke, and Maurice van Tiggelen

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Short summary
In this study, we present a new surface mass balance (SMB) and near-surface climate product for Antarctica with the regional climate model RACMO2.4p1. We assess the impact of major model updates on the climate of Antarctica. Locally, the SMB has changed substantially but also agrees well with observations. In addition, we show that the SMB components, surface energy budget, albedo, pressure, temperature, and wind speed compare well with in situ and remote sensing observations.
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