Multi-tracer study of gas trapping in an East Antarctic ice core

Fourteau, Kévin; Martinerie, Patricia; Faïn, Xavier; Schaller, Christoph F.; Tuckwell, Rebecca J.; Löwe, Henning; Arnaud, Laurent; Magand, Olivier; Thomas, Elizabeth R.; Freitag, Johannes; Mulvaney, Robert; Schneebeli, Martin; Lipenkov, Vladimir Ya.

doi:https://doi.org/10.5194/tc-13-3383-2019

Articles | Volume 13, issue 12

The Cryosphere, 13, 3383–3403, 2019

https://doi.org/10.5194/tc-13-3383-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

The Cryosphere, 13, 3383–3403, 2019

https://doi.org/10.5194/tc-13-3383-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 13, issue 12

Research article 17 Dec 2019

Research article | 17 Dec 2019

Multi-tracer study of gas trapping in an East Antarctic ice core

Kévin Fourteau et al.

Supplement

https://doi.org/10.5194/tc-13-3383-2019-supplement

Data sets

Multi-tracer data of the gas trapping zone of the Lock-In firn and ice core (East Antarctica) K. Fourteau, P. Martinerie, X. Faïn, C. F. Schaller, R. Tuckwell, H. Löwe, L. Arnaud, O. Magand, E. R. Thomas, J. Freitag, R. Mulvaney, M. Schneebeli, and V. Y. Lipenkov https://doi.org/10.1594/PANGAEA.909689

Short summary

Understanding gas trapping in polar ice is essential to study the relationship between greenhouse gases and past climates. New data of bubble closure, used in a simple gas-trapping model, show inconsistency with the final air content in ice. This suggests gas trapping is not fully understood. We also use a combination of high-resolution measurements to investigate the effect of polar snow stratification on gas trapping and find that all strata have similar pores, but that some close in advance.