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Interannual Variability in the Structure and Heat Conducting Properties of Snow Cover

机译:雪盖结构和导热性能的续变性

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Snow cover affects heat transfer and temperature of soil in a winter period. Heat flows from underlying soil to snow cover were calculated using the data on total amount of atmospheric precipitation, average temperature and average thickness of snow cover. Parameters of heat transfer to snow cover and then to atmosphere were calculated using the collected data on density of snow cover, average temperature gradient in it and thermal conductivity of snow cover. The gradient was calculated as a ratio of the average difference of air temperature above snow (atmosphere temperature) and that on soil surface and an average thickness of snow cover. Thermal conductivity of snow cover was determined on the basis of empirical dependence of heat transfer on density [Iosida 1955, Sulakvelidze 1955, Pavlov 1979].
机译:雪覆盖在冬季时期影响土壤的传热和温度。使用关于雪覆盖的平均温度和平均厚度的数据来计算从底层土壤到雪盖的热流。使用收集的雪覆盖的数据,平均温度梯度和雪盖的热导率计算热传递对雪覆盖的参数,然后用收集的数据计算大气。梯度被计算为雪(大气温度)高于雪(大气温度)的平均值与雪覆盖的平均厚度的比率。基于传热对密度的经验依赖性确定了雪盖的导热系数[Iosida 1955,Sulakvelidze 1955,Pavlov 1979]。

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