The 15 January 2022 eruption of the Hunga volcano provides a unique opportunity to study
the reaction of the ionosphere to large explosive events. In particular, this event allows us to …

The purpose of the present paper is to describe the observations of the variations in the
parameters of HF radio waves propagating through the ionosphere when the action of the …

We acquired measurements of four observable parameters of refracted signals received
from the ionosphere (Doppler shift, Doppler spectrum, number of rays, and signal amplitude) …

The purpose of this article was to evaluate the mechanical, optical, and gasdynamic effects
that accompanied the passage and explosion of the Yushu meteoroid. The explosion …

This study is aimed at comprehensively analyzing and estimating the effects in gas
dynamics, as well as mechanical and optical effects, from the Kyiv meteoroid that entered …

Back at the end of the last century, LF Chernogor validated the concept that geospace
storms are comprised of synergistically coupled magnetic storms, ionospheric storms …

The data acquired at ten geomagnetic observatories (Paratunka, Magadan, Yakutsk, and
Khabarovsk (the Russian Federation); Memambetsu, Kanoya, and Kakioka (Japan); …

This paper deals with the variations in the Doppler spectra and in the relative amplitudes of
the signals observed at oblique incidence over the People's Republic of China (PRC) during …

A large meteoroid entered the terrestrial atmosphere and exploded at an altitude of 26 km
between the Kamchatka Peninsula and Alaska (geographic coordinates 56.9° N, 172.4° E) …

The most important event in astronomy and celestial physics in the early 21st century is the
fall of the Chelyabinsk meteoroid with a kinetic energy of nearly 440 kt TNT. Such an event …