Articles | Volume 11, issue 5
The Cryosphere, 11, 2175–2188, 2017
https://doi.org/10.5194/tc-11-2175-2017
The Cryosphere, 11, 2175–2188, 2017
https://doi.org/10.5194/tc-11-2175-2017

Research article 12 Sep 2017

Research article | 12 Sep 2017

Constraints on post-depositional isotope modifications in East Antarctic firn from analysing temporal changes of isotope profiles

Thomas Münch et al.

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Latest update: 24 Oct 2021
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Short summary
The importance of post-depositional changes for the temperature interpretation of water isotopes is poorly constrained by observations. Here, for the first time, temporal isotope changes in the open-porous firn are directly analysed using a large array of shallow isotope profiles. By this, we can reject the possibility of post-depositional change beyond diffusion and densification as the cause of the discrepancy between isotope and local temperature variations at Kohnen Station, East Antarctica.