ИСТИНА

Precipitation of energetic electrons from the outer radiation belt (ORB) affects significantly the upper atmosphere and the ionosphere at middle to high latitudes. The precipitations result from effective acceleration and scattering of electrons in the ORB due to intense substorm and wave activity. The dynamics of electrons during the magnetic storms on the late declining phase of the current 24th solar cycle (the years 2017 – 2019) was investigated using experimental data acquired from joint Taiwan-Japan ERG mission, the high-apogee spacecraft of low inclination (HEO), and a fleet of low-Earth’s orbit (LEO) sun-synchronous NOAA POES satellites. The fluxes of precipitating electrons measured by POES are compared with those measured in the heart of ORB by ERG in order to determine the electron sources and losses.