Accession Number : AD0754634

Title :   The Theoretical Investigation of Wind Gradient Effects on Atmospheric Shadow Zones.

Descriptive Note : Technical rept. 2 Aug 71-30 Sep 72,

Corporate Author : TEXAS UNIV EL PASO

Personal Author(s) : Tamez,Jesus Roberto Armijo ; Ramirez,Jose Javier

Report Date : SEP 1972

Pagination or Media Count : 41

Abstract : A mathematical model is developed in the report for determining the square of the absolute value of the acoustic pressure within a shadow zone of the atmosphere which was produced by wind and temperature gradients. A computer program based on this model is included in the report. This program enables one to calculate the pressure amplitude squared in the shadow zone for a wide range of wind gradients, temperature gradients, and for different source frequencies. (Author)

Descriptors :   (*SOUND TRANSMISSION, ATMOSPHERIC MOTION), WIND, EQUATIONS OF MOTION, PARTIAL DIFFERENTIAL EQUATIONS, MATHEMATICAL MODELS, COMPUTER PROGRAMS, GRAPHICS, CURVE FITTING

Subject Categories : Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE