TY JOUR TI After-effects of geomagnetic storms: statistical analysis and theoretical explanation KW geomagnetic storm KW after-storm ionospheric effects KW statistics KW GSM TIP model JO Solnechno-Zemnaya Fizika AU Ratovsky, K.G. AU Klimenko, M.V. AU Klimenko, V.V. AU Chirik, N.V. AU Korenkova, N.A. AU Kotova, D.S. PY 2018 IS 4 PB INFRA-M Academic Publishing LLC.