Author(s): Shin-Etsu Kamada
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Keywords: No Keywords
Abstract: In this paper, the first discussion is in relation to vertical displacement of an ice layer with which a water surface of the streamflow is wholly covered. The ice layer was assumed to be an elastic plate. Then, it was discussed that the displacement of the ice layer is due to changes of water stage, snow weight accumulated on the layer, the discharge, thickness of the ice layer, etc. On the other hand, a relation between the discharge and cross-section of the streamflow under conditions of whole frozen surface was obtained from the data in the ISHlKARl river. Consequently, a practical formula about the relation between the discharge, the water stage and the snow weight was led forth. The formula gives a lot of qualitative information about the water stage in the river under ice conditions, although the formula would be restricted greatly in applications to the actual river. Especially, the water stage of the river in heavy snow area in winter is changeable even when the discharge is constant.
Year: 1972