Climate of the Past
Climate of the Past
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Articles | Volume 13, issue 12
Articles | Volume 13, issue 12
https://doi.org/10.5194/cp-13-1815-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/cp-13-1815-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 13, issue 12
Research article
 | 
13 Dec 2017
Research article |  | 13 Dec 2017

Analytical constraints on layered gas trapping and smoothing of atmospheric variability in ice under low-accumulation conditions

Kévin Fourteau, Xavier Faïn, Patricia Martinerie, Amaëlle Landais, Alexey A. Ekaykin, Vladimir Ya. Lipenkov, and Jérôme Chappellaz

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Short summary
We measured methane concentrations from a polar ice core to quantify the differences between the ice record and the past true atmospheric conditions. Two effects were investigated by combining data analysis and modeling: the stratification of polar snow before gas enclosure driving chronological hiatuses in the record and the gradual formation of bubbles in the ice attenuating fast atmospheric variations. This study will contribute to improving future climatic interpretations from ice archives.
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