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What are typical conductivity parameters for unfrozen and frozen soils?

April 26, 2017conductivity frozen parameters soils unfrozen

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What are typical conductivity parameters for unfrozen and frozen soils?

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While the unfrozen conductivity varies from 1.5 to 2.2 W/mK, the frozen parameters can be adopted with factor 1.5, i.e. 2.3 to 3.3 W/mK may be adequate for frozen conditions. Further parameters as heat capacity, dry density and convection data are needed for transient numerical calculations.