REVIEW OF SOUND PROPAGATION IN THE LOWER ATMOSPHERE

Abstract

A critical review is given of available information on sound propagation through the lower atmosphere. The application is to the prediction of sound fields due to aircraft (in flight or on the ground), especially, at distances up to a few miles from the aircraft sound sources. Treatment of the prediction problem requires consideration of a number of topics including (1) absorption processes in the air, (2) boundary effects caused by the earth and (3) refraction of sound due to spatial variations in air temperature and wind. Although a fair amount of information is now available on these topics a considerable amount of research remains to be done before practical solutions will be available.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1955
Accession Number
AD0067880

Entities

People

  • David Mintzer
  • Wesley L. Nyborg

Organizations

  • Brown University

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acoustic Measurement
  • Acoustic Properties
  • Acoustic Waves
  • Acoustics
  • Air Force
  • Aircrafts
  • Airframes
  • Computational Science
  • Diffraction
  • Forests
  • Measurement
  • Meteorology
  • Refraction
  • Scattering
  • Temperature Gradients
  • Thermal Conductivity
  • Wave Propagation

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Systems Analysis and Design
  • Wave Propagation and Nonlinear Chaotic Dynamics.