  Various particle accelerators operate in the space plasmas, filling the
Galaxy with high energy particles, primary cosmic rays. Reaching the atmosphere
of the earth, these particles originate extensive air showers consisting of
millions of elementary particles, secondary cosmic rays, covering several large
areas on the ground. During thunderstorms, strong electric fields modulate the
energy spectra of secondary particles and, consequently, originate short and
long particle bursts. Impulse amplifications of particle fluxes, the
thunderstorm ground enhancements, TGEs manifest themselves as peaks in the time
series of count rates of particle detectors, which coincide with thunderstorms,
during which free electrons are accelerating and multiplied, forming electron
gamma ray avalanches. Thus, electron accelerators emerging in thunderous
atmospheres can significantly alter the frequency of EAS triggers.
