Climate of the Past
Climate of the Past
CP
Articles | Volume 20, issue 9
Articles | Volume 20, issue 9
https://doi.org/10.5194/cp-20-2031-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/cp-20-2031-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 9
Research article
 | 
16 Sep 2024
Research article |  | 16 Sep 2024

New estimates of sulfate diffusion rates in the EPICA Dome C ice core

Rachael H. Rhodes, Yvan Bollet-Quivogne, Piers Barnes, Mirko Severi, and Eric W. Wolff

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Short summary
Some ionic components slowly move through glacier ice by diffusion, but the rate of this diffusion, its exact mechanism(s), and the factors that might influence it are poorly understood. In this study, we model how peaks in sulfate, deposited at Dome C on the Antarctic ice sheet after volcanic eruptions, change with depth and time. We find that the sulfate diffusion rate in ice is relatively fast in young ice near the surface, but the rate is markedly reduced over time.
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