METHOD FOR DETERMINING HEAT CONDUCTION COEFFICIENT OF SNOW IN CONDITIONS OF NATURAL OCCURENCE OF SNOW COVER Russian patent published in 2017 - IPC G01N25/18 

FIELD: measuring equipment.

SUBSTANCE: essence of the method is to measure the density and hardness of snow and determine the heat conduction coefficient of snow by empirical dependences. The method for determining heat conductivity, which includes measuring the density and calculating the heat conductivity by an empirical dependence, characterized in that the hardness of the snow is further measured and the heat conduction coefficient of snow is determined by empirical dependences: at 0.15≤ρ≤0.45 and at 390<P≤715, λ=0.4219ρ+0.1922; at 175<P≤390, λ=0.3824ρ+0.1362; at 50<P≤175, λ=0.4021ρ+0.0674; at 0<P≤50 and at 0.2≤ρ≤0.4, λ=0.7398ρ-0.0907; at 0.15≤ρ<0.2, λ=0.146ρ+0.0281, where P is the hardness of snow, H; λ - heat conduction coefficient of snow, W/(m⋅K); ρ - snow density, g/cm³.

EFFECT: increasing the accuracy of determining the heat conduction coefficient of snow in conditions of natural occurrence of snow cover.

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