Outdoor sound propagation in the presence of atmospheric turbulence: Experiments and theoretical analysis with the fast field program algorithm

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DOIResolve DOI: http://doi.org/10.1121/1.413649
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TypeArticle
Journal titleJournal Of The Acoustical Society Of America
Volume98
Issue1
Pages570579; # of pages: 10
SubjectACOUSTIC MEASUREMENTS; EARTH ATMOSPHERE; HZ RANGE; SOUND LEVELS; SOUND PRESSURE; SOUND VELOCITY; SOUND WAVES; TURBULENT FLOW; WAVE PROPAGATION; WIND
AbstractResults of experimental measurements of sound propagating over the range from 16 to 250 m at frequencies between 160 and 2000 Hz in a refracting atmosphere are described. Wind velocity and temperature are also measured simultaneously with the acoustical measurements at different heights. The meteorological measurements provide the sound-speed profile as well as the strength of turbulence up to an elevation of 32 m. The measurements are sampled every 0.25 s, thus providing a continuous record of sound-speed profiles and sound-pressure levels over time. The individual sound-speed profile is used to generate predicted sound levels that are compared with the measured sound levels.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Institute for Microstructural Sciences
Peer reviewedNo
NPARC number12327861
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Record identifier1feda06a-daf0-4df9-95cb-c79110943703
Record created2009-09-10
Record modified2016-05-09
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