雪氷
Online ISSN : 1883-6267
Print ISSN : 0373-1006
28 巻, 1 号
選択された号の論文の5件中1~5を表示しています
  • 高木 子平
    1966 年 28 巻 1 号 p. 1-7
    発行日: 1966/01/30
    公開日: 2009/09/04
    ジャーナル フリー
    This paper deals with the observational results of snow accretion on the testing line conductor which was set at Isiuti. From the observation, it was found that meteorological conditions, mechanizm of growth and properties of snow accretion on big line conductor were differ from those on small line conductor.
  • 前野 紀一
    1966 年 28 巻 1 号 p. 8-12
    発行日: 1966/01/30
    公開日: 2009/09/04
    ジャーナル フリー
    Microscopic observations were made of the formations and the metamorphoses of air bubbles in ice, which were formed on surfaces of small solid particles on a developing ice-water interface and then captured in the growing ice crystal.
    The results can explain clearly the regular (sometimes periodic) distributions and shapes of air bubbles in natural and artificial ice crystals.
  • 鎌田 新悦
    1966 年 28 巻 1 号 p. 13-18
    発行日: 1966/01/30
    公開日: 2009/09/04
    ジャーナル フリー
    In the open channel, the water stage is connected closely to its discharge and the discharge is obtained by the observation of stage. But, almost every river in a cold climate such as Hokkaido freezes at the surface in winter. Therefore, the results of studies about the open channel can not be applied directly to the closed river with the whole frozen surface. The stage-discharge curve of the above mentioned closed river is obtained by the same method in the open channel, if the water stage of the closed ice-covered river is defined as the water level in the hole of ice drilled for measurement. But, it is indicated theoretically that the curve is not invariable and varies with the changes of the accumulated snow weight on the whole frozen surface and the other conditions. The lower limit level of the surface ice of river was introduced as the parameter of the discharge in the closed river with the whole frozen surface. It is the theoretical and suitable parameter and is not affected by the accumulated snow weight and the other coditions. The vertical distribution of the suspended material in the closed river with the whole frozen surface was explained by the constant apparent viscosity all over the depth. The total suspended material is corresponded to the lower limit level of the surface ice of river.
  • 高橋 劭, 熊沢 義郎
    1966 年 28 巻 1 号 p. 19-22
    発行日: 1966/01/30
    公開日: 2009/09/04
    ジャーナル フリー
    Snow crystal sonde was designed to know snow shapes, especially, snow flakes and graupel pellets, in the cloud. One snow crystal sonde among 10 was recovered and this result showed that there were a great number of small sized snow particles at about 1000m height in cloud.
  • 宮入 宮人, 大櫛 淳, 小沢 智
    1966 年 28 巻 1 号 p. 23-29
    発行日: 1966/01/30
    公開日: 2010/01/22
    ジャーナル フリー
    Drag of bodies moving through snow with high speeds (1540m/sec) was studied. Shells (as. high-speed moving bodies) were shot into snow pile by an air gun, and output in s built-in acceleration meter was recorded on oscillogram. The impulsive acceleration of shells was measured when they hit the snow surface, and the relation between the drag and the speed of the shell was obtained by integrating the curve on the oscillogram. In the speed range studied, the drag of a body can be expressed as a sum of a term proportional to the square of the velocity and a constant term.
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