Abstract During Solar Cycle 23 16 ground-level enhancement events were registered by the
global neutron monitor network. In this work we focus on the period with increased solar …

The global neutron monitor network has been successfully used over several decades to
study cosmic ray variations and fluxes of energetic solar particles. Nowadays, it is used also …

A consistent approach for the inherently imbalanced problem of solar energetic particle
(SEP) events binary prediction is being presented. This is based on solar flare and coronal …

Studies of the characteristic of strong solar energetic particles (SEPs), that is events that can
be registered by ground-based instruments such as neutron monitors, allow one to …

Intense solar activity was observed in May 2012. A notable ground level enhancement
(GLE) was registered on 17 May 2012 by several space‐borne instruments as well as on …

Major solar eruptions can accelerate protons up to relativistic energies. Solar relativistic ions
arriving at 1 au may cause a solar particle event detectable by the worldwide network of …

Solar energetic particles are one of the main sources of particle radiation seen in space. In
the first part of September 2017 the most active solar period of cycle 24 produced four large …

Polar regions are the most exposed to secondary particles and radiation produced by
primary cosmic rays in the atmosphere, because naturally they are with marginal …

A ground-level enhancement (GLE) event is a sudden increase in cosmic ray intensity
originated by solar sources and recorded by ground-based detectors. GLEs are invariably …

As a result of notable solar activity observed in April 2001, one of the strongest ground level
enhancements (GLE) of solar cycle 23 occurred, namely GLE# 60 on 15 April 2001. In this …