EFFECT OF FREEZING THE SURFACE LAYER OF SOIL ON THE RADON TRANSPORT

A. V. Klimshin, I. A. Kozlova, E. N. Rybacov, M. Y. Lukovskoy

Institute of Geophysics of the Ural Branch of the Russian Academy of Sciences, Yekaterinburg, 620016

Results of soil temperature and soil gas radon concentration monitoring are shown. A model of radon transport is developed in case of frost penetration in a soil top layer. An estimation of radon diffusion coefficient in a frozen soil layer is given. Factors of soil gas radon concentration and radon flux from soil surface are calculated, depending on depth of frost penetration and diffusion properties of soil.

Keywords: radon, temperature, frost penetration, volume activity, flux density.

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