Accession Number : AD0257936

Title :   D-Layer Ionization Loss Rates.

Corporate Author : RAND CORP SANTA MONICA CALIF

Personal Author(s) : CRAIN,C.M.

Report Date : 14 APR 1961

Pagination or Media Count : 1

Abstract : Certain ionization phenomena are examined in the region of the earth's atmosphere from about 50 to 90 kilometers, the D-layer. The concentration of electrons in this region tends to change with the incidence of solar radiation, being greatest in the daytime and falling off during the nighttime or during solar eclipses. Factors in this process are rates of attachment and detachment of electrons to molecules of oxygen (and possibly water vapor) and recombination rates of ionsAND ELECTRONS. The ionization effects attributable to cosmic radiation are also examined. As a study in the basic physics of the upper atmosphere, this analysis provides part of the background for investigations of the effects of highaltitude nuclear explosions on radio communications. It is thus tied in with research leading to improved methods of post-attack command and control. (Author)

Descriptors :   *ELECTRONS, *IONIZATION, *IONOSPHERE, *COMMUNICATION AND RADIO SYSTEMS, *UPPER ATMOSPHERE, ABSORPTION, COSMIC RAYS, DENSITY, INTENSITY, IONOSPHERIC DISTURBANCES, OXYGEN, SOLAR ECLIPSES, WATER VAPOR

Distribution Statement : APPROVED FOR PUBLIC RELEASE