Accession Number : AD0787063

Title :   Atmospheric Ray Tracing.

Descriptive Note : Final rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Roberts,B. G. , Jr. ; Bebbs,E. H.

Report Date : AUG 1974

Pagination or Media Count : 121

Abstract : A computer program has been written in FORTRAN to predict the acoustical ray paths in the atmosphere, as well as determining the transmission loss in air. The program accepts data in the form of a temperature or sound speed versus height profile. A wind velocity profile may also be entered. The program will produce a printplot of the ray trajectories, as well as a printplot of the transmission loss vs range. A CALCOMP plot of the ray trajectories may also be obtained. (Author)

Descriptors :   *Acoustic velocity, *Ray tracing, *Computer programs, Atmospheres, Plotters, Computations, FORTRAN

Subject Categories : Computer Programming and Software
      Computer Hardware
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE