Dynamics of charged particle fluxes in Earth’s troposphere since 1990

Abstract

Temporal variations of charged particle fluxes in the Earth’s atmosphere at altitudes below ∼16 km do not always correlate with variations above ∼16 km and the dynamics of primary cosmic rays. Variations of particle fluxes in the troposphere grew in the 1990s, rather synchronously in the Murmansk and Moscow regions but not in Antarctica. During the last decade, the annual wave in the opposite phase with temperature has often been observed in the northern hemisphere at all altitudes below ∼16 km. The phase of this variation coincides with the phase of the expected temperature effect of cosmic ray muons but its amplitude is several times larger than expected.