Articles | Volume 10, issue 3
Research article
27 May 2016
Research article |  | 27 May 2016

Imaging air volume fraction in sea ice using non-destructive X-ray tomography

Odile Crabeck, Ryan Galley, Bruno Delille, Brent Else, Nicolas-Xavier Geilfus, Marcos Lemes, Mathieu Des Roches, Pierre Francus, Jean-Louis Tison, and Søren Rysgaard

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Cited articles

Bennington, K. O.: Desalination features in natural sea ice, J. Glaciol., 6, 845–857,1967.
Bock, C. and Eicken, H.: A magnetic resonance study of temperature-dependent microstructural evolution and self-diffusion of water in Arctic first-year sea ice, Ann. Glaciol., 40, 179–184, 2005.
Carte, A. E.: Air bubbles in ice, Proc. Phys. Soc., 77, 757–768, 1961.
Cole, D. M. and Shapiro, L. H.: Observations of brine drainage networks and microstructure of first-year sea ice, J. Geophys. Res., 103, 21739–21750, 1998.
Cole, D. M., Eicken, H., Frey, K., and Shapiro, L. H.: Observations of banding in first-year Arctic sea ice, J. Geophys. Res., 109, C08012,, 2004.
Short summary
We present a new non-destructive X-ray-computed tomography technique to quantify the air volume fraction and produce separate 3-D images of air-volume inclusions in sea ice. While the internal layers showed air-volume fractions < 2 %, the ice–air interface (top 2 cm) showed values up to 5 %. As a result of the presence of large bubbles and higher air volume fraction measurements in sea ice, we introduce new perspectives on processes regulating gas exchange at the ice–atmosphere interface.