Audible sound under compressed snow simulating avalanche debris

Acoustical science and technology

article

Katuhiro Maki¹  Ken-Ichi Sakakibara²  Kimiko Yamakawa³  Shigeaki Amano¹ 

[1] Faculty of Human Informatics, Aichi Shukutoku University;Department of Communication Disorders, Health Sciences University of Hokkaido;Department of Culture and Language, Shokei University

关键词: Sound transmission;    Snow;    Avalanche;    Stomping;    Rescue;   

DOI  :  10.1250/ast.43.188

学科分类：声学和超声波

来源: Acoustical Society of Japan

【 摘 要 】

To identify effective communication methods for rescuing victims buried in an avalanche, we investigate the acoustic transfer characteristics by simulating a snow avalanche to identify a method for effectively communicating with buried individuals. The results indicate that sound attenuation at a depth of 30 cm from the snow surface is 60 dB over a wide frequency range when the sound is emitted above the surface. Because the sound insulation of the simulated snow avalanche is extremely high, the sound emitted from the surface will likely not reach the buried victims. However, vibrations due to foot stomping on the surface of snow are likely to be transmitted to a buried individual as sound.

【 授权许可】

Unknown