TY JOUR TI Studying the influence of geomagnetic storms on parameters of the ionospheric F2 layer during solar activity cycle 24 KW F2-layer critical frequency KW F2-layer peak height KW geomagnetic activity KW Dst index JO Solar-Terrestrial Physics AU Sidorenko, K.A. AU Vasenina, A.A. PY 2026 IS 12 PB INFRA-M Academic Publishing LLC.