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 Solnechno-Zemnaya Fizika AU Berngardt, O.I. AU Bubnova, T.V. AU Podlesnyi, A.V. PY 2018 IS 4 PB INFRA-M Academic Publishing LLC.