Articles | Volume 10, issue 2
Research article
07 Apr 2016
Research article |  | 07 Apr 2016

Metamorphism during temperature gradient with undersaturated advective airflow in a snow sample

Pirmin Philipp Ebner, Martin Schneebeli, and Aldo Steinfeld

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Cited articles

Albert, M. R.: Effects of snow and firn ventilation on sublimation rates, Ann. Glaciol., 35, 52–56, 2002.
Albert, M. R. and Hardy, J. P.: Ventilation experiments in a seasonal snow cover, in: Biogeochemistry of Seasonally Snow-Covered Catchments, edited by: Tonnessen, K. A., Williams, M. W., and Tranter, M., IAHS Publ. 228, 41–49, IAHS Press, Wallingford, UK, 1995.
Albert, M. R. and McGilvary, W. R.: Thermal effects due to air flow and vapor transport in dry snow, J. Glaciol., 38, 273–281, 1992.
Box, J. E. and Steffen, K.: Sublimation on the Greenland ice sheet from automated weather station observations, J. Geophys. Res., 107, 33965–33981, 2001.
Calonne, N., Flin, F., Morin, S., Lesaffre, B., and Rolland du Roscoat, S.: Numerical and experimental investigations of the effective thermal conductivity of snow, Geophys. Res. Lett., 38, 1–6, 2011.
Short summary
Changes of the porous ice structure were observed in a snow sample. Sublimation occurred due to the slight undersaturation of the incoming air into the warmer ice matrix. Diffusion of water vapor opposite to the direction of the temperature gradient counteracted the mass transport of advection. Therefore, the total net ice change was negligible, leading to a constant porosity profile. However, the strong recrystallization of water molecules in snow may impact its isotopic or chemical content.