Accession Number : AD0747777

Title :   Aeronomic Consequences of Solar Flux Variations between 2000 and 1325 A.

Descriptive Note : Rept. for 2 Nov 71-1 Mar 72,

Corporate Author : AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Personal Author(s) : Breig,Edward L.

Report Date : 15 AUG 1972

Pagination or Media Count : 46

Abstract : A theoretical analysis of the effects of recent solar flux measurements below 2000 A upon the basic atmospheric O2 photodissociation and heating rates as a function of the O2 column density has been performed. Such experimental data imply a reduction in these basic rates by up to a factor of 4 at the top of the atmosphere, as compared to those rates computed with previously recommended solar fluxes. These differences, however, are dependent upon the O2 column density and decrease for large values of the latter parameter. Atmospheric altitude profiles of the O2 dissociation and heating rates exhibit a comparable variation with the solar flux intensity at these wavelengths. (Author)

Descriptors :   (*UPPER ATMOSPHERE, *OXYGEN), (*SOLAR RADIATION, UPPER ATMOSPHERE), DISSOCIATION, PHOTOCHEMICAL REACTIONS, ULTRAVIOLET RADIATION, ABSORPTION

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE