Ionization of the earth's atmosphere by solar and galactic cosmic rays

Details Ionization of the earth's atmosphere by solar and galactic cosmic rays Ionization of the earth's atmosphere by solar and galactic cosmic rays

Mar 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009acgeo..57...88u&link_type=abstract

Acta Geophysica, Volume 57, Issue 1, pp.88-101

Statistics

Methodology

16

Cosmic Rays, Atmosphere, Ionization, Solar Activity, Solar-Terrestrial Relations

Scientific paper

A brief review of the research of atmospheric effects of cosmic rays is presented. Numerical models are discussed, that are capable to compute the cosmic ray induced ionization at a given location and time. Intercomparison of the models, as well as comparison with fragmentary direct measurements of the atmospheric ionization, validates their applicability for the entire atmosphere and the whole range of the solar activity level variations. The effect of sporadic solar energetic particle events is shown to be limited on the global scale, even for the most severe event, but can be very strong locally in polar regions, affecting the physical-chemical properties of the upper atmosphere, especially at high altitudes. Thus, a new methodology is presented to study cosmic ray induced ionization of the atmosphere in full detail using realistic numerical models calibrated to direct observations.

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