TY JOUR TI Automatic estimation of dynamics of ionospheric disturbances with 1–15 minute lifetimes as derived from ISTP SB RAS fast chirp ionosonde data KW ionospheric disturbances KW automatic ionogram processing KW ionospheric vertical sounding JO Solar-Terrestrial Physics AU Berngardt, O.I. AU Bubnova, T.V. AU Podlesnyi, A.V. PY 2018 IS 4 PB INFRA-M Academic Publishing LLC.