Author(s): Yoshio Muraki; Shin-Etsu Kamada
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Keywords: No Keywords
Abstract: River ice in heavy snow-cover areas differs considerably from that in low-temperature areas with a small precipitation. River ice in heavy snow-cover areas is characterized by a layer of slush (like a mixture of snow and water) sandwiched between layers of solid ice. It is pointed out in such cases that the ice growth into the slush is a phenomenon independent of the thawing seen at the undersurface of the river ice. In the present paper, the first mathematical approximation concerning the ice growth under a snow cover was led forth. It was shown that the second approximation was negligible compared to the first approximation under ordinary conditions. In addition, the formation and thawing of river ice in a heavy snow cover area was discussed based on observed data obtained at the Ishikari River in Hokkaido.
Year: 1970