O.V. Kapustina1, G.I. Druzhin2, V.E. Nikiforov3

1,3 Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation Russian Academy of Sciences (Moscow, Troitsk, Russia)
2 Institute of Cosmophysical Research and Radio Wave Propagation FEB RAS (Paratunka, Kamchatka Territory, Russia)
1 olkap@izmiran.ru, 2 drug@ikir.ru, 3 nika@izmiran.ru