Climate of the Past
Climate of the Past
CP
Articles | Volume 21, issue 11
Articles | Volume 21, issue 11
https://doi.org/10.5194/cp-21-2389-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-21-2389-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 21, issue 11
Research article
 | 
24 Nov 2025
Research article |  | 24 Nov 2025

Ice core site considerations from modeling CO2 and O2 ∕ N2 ratio diffusion in interior East Antarctica

Marc J. Sailer, Tyler J. Fudge, John D. Patterson, Shuai Yan, Duncan A. Young, Shivangini Singh, Don Blankenship, and Megan Kerr

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Short summary
In this study, we model vertical atmospheric gas diffusion in ice older than 1 million years in the Antarctic ice sheet. We estimate climate signal preservation and help identify a potential region for a future deep ice core in East Antarctica. We find that regions with low accumulation rates and moderate ice thickness result in lower diffusion rates. In particular, the foothills of Dome A is a promising location for a deep ice core that extends the present ice core record.
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