Articles | Volume 16, issue 2
Clim. Past, 16, 503–522, 2020
https://doi.org/10.5194/cp-16-503-2020
Clim. Past, 16, 503–522, 2020
https://doi.org/10.5194/cp-16-503-2020

Research article 11 Mar 2020

Research article | 11 Mar 2020

Estimation of gas record alteration in very low-accumulation ice cores

Kévin Fourteau et al.

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Short summary
We quantify how the greenhouse gas records of East Antarctic ice cores (which are the oldest ice cores) might differ from the actual atmosphere history. It is required to properly interpret ice core data. For this, we measured the methane of five new East Antarctic ice core sections using a high-resolution technique. We found that in these very old ice cores, one can retrieve concentration variations occurring in only a few centuries, allowing climatologists to study climate's fast dynamics.