Accession Number : AD0776228

Title :   Visibility Calculations for Microphysical Computer Models,

Corporate Author : ENVIRONMENTAL PREDICTION RESEARCH FACILITY (NAVY) MONTEREY CALIF

Personal Author(s) : Johnson,David B.

Report Date : JUN 1972

Pagination or Media Count : 26

Abstract : The calculation of visual range in microphysical computer models is discussed. Part I combines material from a number of references into a single discussion of background theory. Part II discusses applications of the theory to actual computer models and presents sample FORTRAN listings. Specific topics include: calculation of visual range in a cloud of either water drops or ice crystals; and, simulation of slant visual range in a multi-level model. A FORTRAN subroutine for calculation of the scattering area coefficient is appended. (Author)

Descriptors :   *Atmospheres, *Visibility, Mathematical models, Light transmission, Range(Distance), Brightness, Clouds, Fog, Subroutines, FORTRAN

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE