抄録
The values of the absorption coefficient of snow have been measured by Standing Wave Method. The propagation of sound has also been tested under various conditions of snow, such as soft new, hard old, frozen and falling. The results obtained were compared with that under the snowless condition. In newly fallen state, because of its appreciable absorption, sound is considerably reduced at a distance more than two hundred meters from the sound source, while, in hard and frozen state, the reduction is comparable with that of the snowless condition. The propagation of sound under the condition of a rising vapour in spring was found quite peculiar.
