Climate of the Past
Climate of the Past
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Articles | Volume 20, issue 11
Articles | Volume 20, issue 11
https://doi.org/10.5194/cp-20-2539-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/cp-20-2539-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 11
Research article
 | 
15 Nov 2024
Research article |  | 15 Nov 2024

Decoupling of δ18O from surface temperature in Antarctica in an ensemble of historical simulations

Sentia Goursaud Oger, Louise C. Sime, and Max Holloway

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Short summary
Antarctic ice cores provide information about past temperatures. Here, we run new climate model simulations, including stable water isotopes for the historical period. Across one-third of Antarctica, there is no strong connection between isotopes and temperature and a weak connection for most of the rest of Antarctica. This disconnect between isotopes and temperature is largely driven by changes in Antarctic sea ice. Our results are helpful for temperature reconstructions from ice core records.
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Ice core science at the three poles (CP/TC inter-journal SI)