Parametrization of the cosmic ray ion-pair production rate above 18 km

Details Parametrization of the cosmic ray ion-pair production rate above 18 km Parametrization of the cosmic ray ion-pair production rate above 18 km

Jun 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978p%26ss...26..513h&link_type=abstract

Planetary and Space Science, vol. 26, June 1978, p. 513-517.

Physics

22

Atmospheric Ionization, Cosmic Rays, Ion Production Rates, Atmospheric Chemistry, Cations, Data Reduction, Pair Production, Parameterization, Solar Activity Effects

Scientific paper

Cosmic rays are a significant source of ionization in the stratosphere and the lower mesophere. Because the collision cross section of these energetic particles is small, the ion-pair production rate above 30 km is directly proportional to the atmospheric number density. Between 30 and 18 km increasing numbers of secondary cosmic ray particles cause a rapid increase in the ionization rate which is proportional to a simple power law in number density or pressure. The earth's magnetic field also modulates the incident flux so that for magnetic latitudes below about 60 deg the ion-pair production rate is also proportional to a factor of (A + B sin to the 4th Lambda).

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