Propagation Characteristics of Acoustic Wave in Non-Isothermal Earth’s Atmospheres

  • Swati Routh Jain University
  • Arka Bhattacharya Jain University
  • Snehanshu Saha PES Institute of Technology, Bangalore
  • Madhu Kahyap Jagadeesh Jyoti Nivas College, Bangalore

Abstract

Acoustic waves are those waves which travel with the speed of sound through a medium. H. Lamb (1909, 1910) had 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 turning point frequency method following Musielak et.al(2006) Routh et. al.(2014) to determine cutoff frequencies for acoustic waves propagating in non-isothermal medium which 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 analyzed and compared with the Lamb's cut-off frequency for earth's troposphere.

Author Biographies

Swati Routh, Jain University

Department of Physics, Jain University, Bangalore

Arka Bhattacharya, Jain University

Department of Physics, Jain University, Bangalore

Snehanshu Saha, PES Institute of Technology, Bangalore

Department of Computer Science and Engineering, PESIT South Campus, Bangalore

Madhu Kahyap Jagadeesh, Jyoti Nivas College, Bangalore

Department of Physics, Jyoti Nivas College, Bangalore; Research Scholar, CHRIST (Deemed to be University), Bangalore

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Published
2018-01-01
Section
Research Articles