Articles | Volume 17, issue 12
https://doi.org/10.5194/tc-17-5373-2023
https://doi.org/10.5194/tc-17-5373-2023
Research article
 | 
18 Dec 2023
Research article |  | 18 Dec 2023

Control of the temperature signal in Antarctic proxies by snowfall dynamics

Aymeric P. M. Servettaz, Cécile Agosta, Christoph Kittel, and Anaïs J. Orsi

Data sets

MARv312-albCor105-spinup6_daily (MARv312-albCor105-spinup6-upload1) C. Agosta, A. P. M. Servettaz, C. Kittel, and A. J. Orsi https://doi.org/10.5281/zenodo.8408864

Model code and software

Modèle Atmosphérique Régional MAR version 3.12 X. Fettweis et al. https://gitlab.com/Mar-Group/MARv3

Figure notebook for “Control of the temperature signal in Antarctic proxies by snowfall dynamics” (Version 1.0) A. P. M. Servettaz https://doi.org/10.5281/zenodo.10369485

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Short summary
It has been previously observed in polar regions that the atmospheric temperature is warmer during precipitation events. Here, we use a regional atmospheric model to quantify the temperature changes associated with snowfall events across Antarctica. We show that more intense snowfall is statistically associated with a warmer temperature anomaly compared to the seasonal average, with the largest anomalies seen in winter. This bias may affect water isotopes in ice cores deposited during snowfall.