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The general theory and experimental formulae of drift snow transport were studied by measuring the vertical distribution of drift snow transport between the snow surface and a height of 30 cm in the Ishikari Plain, Hokkaido. As a result, it was found that drift snow transport is influenced not only by the wind velocity but also by the condition of snow surface. It is considered that the suspended drift snow is transported by turbulent diffusion. According to the theory of turbulent diffusion, log Q representing the drift snow transport has a linearly relation to log Z representing the height. In the case of saltation drift, on the other hand, log Q is represented by a straight line of Z, according to Kawamura (1948). In the present case, the relation between log Q and log Z has bent at about 8 cm. The relation is linear above the bend and log Q is linear to Z below the bend. It was concluded that the drift snow above the bend was transported purely by suspension, and the drift snow below the bend was transported mostly by saltation.
公益社団法人日本雪氷学会の論文