Accession Number : AD0651942

Title :   A COMPUTER PROGRAM FOR VLF RAY TRACING IN A MODEL IONOSPHERE,

Corporate Author : IOWA UNIV IOWA CITY DEPT OF PHYSICS AND ASTRONOMY

Personal Author(s) : Shawhan,Stanley D.

Report Date : MAY 1967

Pagination or Media Count : 74

Abstract : The ray tracing equations and expressions necessary to evaluate these equations for a model ionosphere with a centered dipole magnetic field and an H+, He+, O+, e- diffusive equilibrium concentration model are given and discussed. A basic computer program for the numerical calculation of ray paths in a meridian plane is listed and explained. An additional routine to calculate point-to-point ray paths is briefly described. Examples are given of the computer printout for this ray tracing program and of a plotted ray path. (Author)

Descriptors :   (*IONOSPHERIC DISTURBANCES, ATMOSPHERE MODELS), (*IONOSPHERIC PROPAGATION, ATMOSPHERE MODELS), IONOSPHERE, WHISTLERS, ATMOSPHERICS, NOISE(RADIO), VERY LOW FREQUENCY, EQUATIONS, FLOW CHARTING, COMPUTER PROGRAMS

Subject Categories : Atmospheric Physics
      Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE