Articles | Volume 12, issue 7
https://doi.org/10.5194/tc-12-2481-2018
https://doi.org/10.5194/tc-12-2481-2018
Research article
 | 
26 Jul 2018
Research article |  | 26 Jul 2018

Pore morphology of polar firn around closure revealed by X-ray tomography

Alexis Burr, Clément Ballot, Pierre Lhuissier, Patricia Martinerie, Christophe L. Martin, and Armelle Philip

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Latest update: 21 May 2024
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Short summary
Three-dimensional imaging of the pore network of polar firn from Antarctica was realized in order to relate the morphological evolution of pores with their progressive closure with depth. Evaluating the closed porosity was found to be very dependent on the size of samples and image reconstructions. A connectivity index, which is a parameter less dependent on such issues, was proposed and proved to accurately predict the close-off depths and densities of two polar sites.