Accession Number : AD0774400

Title :   Specific Ionization in the Polar Atmosphere Due to Precipitating Heavy Particles.

Descriptive Note : Environmental research papers,

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s) : Kelley,Joseph G. ; Sellers,Bach

Report Date : 02 NOV 1973

Pagination or Media Count : 47

Abstract : An expression is derived for the specific ionization of the polar atmosphere by precipitating fluxes of heavy particles. This expression may be evaluated with the aid of a digital computer. The results depend significantly upon the selection of the proper atmospheric model. The errors introduced by neglecting the variation of pitch angle with altitude and by simplifying the expression for stopping power were found to be acceptable at most altitudes of interest, permitting the use of a much simpler expression. The additional ionization contributed by particles returning through a given altitude after mirroring at lower altitudes was found to be negligible. (Author)

Descriptors :   *Ionospheric disturbances, *Polar cap absorption, Electrons, Protons, Particle flux, Ionization

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE