Auroral Ionosphere Model with PC Index as an Input

Auroral Ionosphere Model (AIM-E) is designed to calculate chemical content in the high-latitude E region ionosphere and takes into account both solar EUV radiation electron precipitation of magnetospheric origin. The latter extremely important for auroral chemistry especially disturbed conditions. In order maximize AIM-E timing accuracy when simulating highly variable periods course geomagnetic storms substorms, we suggest parameterize OVATION-Prime empirical model with ground-based Polar Cap (PC) index. This gives an advantage to: (1) perform ionospheric simulation actual input, since PC index reflects geoeffective wind conditions; (2) promptly assess current situation, available real-time 1 min resolution. results demonstrate a good agreement incoherent scatter radar data (EISCAT UHF, Tromso) vertical sounding Arctic zone during events intense particle precipitation. reproduces well calculated column (90–140 km) critical frequency sporadic layer (fOEs) formed by precipitating electrons. can be applied monitor entire ionosphere, including subauroral zones, which predicting conditions radio wave propagation.