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A Numerical Comparison of Dielectric based Measurement of Atmospheric Ice Using COMSOL


U. N. Mughal1 M. S. Virk1
1Narvik University College, Narvik, Norway


(a) Dielectric constant variation as a function of excitation frequency in pure ice at two temperatures. (b) Dielectric constant variation as a function of excitation frequency for soft snow at different density ratios.

Atmospheric ice is a very complex material with varying electrical properties due to different polymorphs of ice itself. Also, if the medium to be considered is snow, then density becomes an additional parameter because it is a mixture of three dielectrics water, ice and air. The permittivity and loss tangent of naturally occurring ice and snow shows lot of variation at different conditions particularly temperature. This paper is a comparative study of some experimental results found from literature and simulations of dielectric properties of ice and snow in Comsol.

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