Accession Number : AD0473746


Title :   ATMOSPHERIC SOUND PROPAGATION NEAR THE EARTH'S SURFACE


Corporate Author : ARMY ELECTRONICS RESEARCH AND DEVELOPMENT ACTIVITY WHITE SANDS MISSILE RANGE NM


Personal Author(s) : Pena, Ricardo ; Diamond, Marvin


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/473746.pdf


Report Date : Oct 1965


Pagination or Media Count : 17


Abstract : A study of sound propagation near the earth's surface under relatively calm meteorological conditions showed considerable variation in the pressure of detected waves. This variation was shown to be due to atmospheric effects between the source and detector. The accuracy of determining the elevation angle of the sound source was found to be highly dependent upon the surface temperature.


Descriptors :   *SOUND TRANSMISSION , ATMOSPHERIC TEMPERATURE , BAROMETRIC PRESSURE , EARTH(PLANET) , ERRORS , EXPERIMENTAL DATA , MEASUREMENT , MICROPHONES , SURFACE TEMPERATURE , TROPOSPHERE


Subject Categories : Acoustics


Distribution Statement : APPROVED FOR PUBLIC RELEASE