2016/09/13 by Jyotsna Kashyap, Kashyap, J. M., S. Routh +3
Earth and Planetary Sciences · #Earth and Planetary Astrophysics (astro-ph.EP) #FOS: Physical sciences #Seismic Waves and Analysis #Underwater Acoustics Research
paper · pdf · doi:10.48550/arxiv.1609.03711
openalex publication_date 2016/09/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Acoustic waves are those waves which travel with the speed of sound through a medium. H. Lamb has derived a cutoff frequency for stratified and isothermal medium for the propagation of acoustic waves. In order to find the cutoff frequency many methods were introduced after Lamb's work. In this paper, we have chosen the method to determine cutoff frequencies for acoustic waves propagating in non-isothermal media. This turning point frequency method can be applied to various atmospheres like solar atmosphere, stellar atmosphere, earth's atmosphere etc. Here, we have analytically derived the cutoff frequency and have graphically analyzed and compared with the Lamb's cut-off frequencyfor earth's troposphere, lower and upper stratosphere.