TY JOUR TI Features of Ne recovery at the Irkutsk Incoherent Scatter Radar KW incoherent scatter KW ionosphere KW electron density KW Chapman layer JO Solnechno-Zemnaya Fizika AU Alsatkin, S.S. AU Medvedev, A.V. AU Ratovsky, K.G. PY 2020 IS 6 PB Institute of Solar-Terrestrial Physics SB RAS