TY JOUR TI Lifetime of a polarization jet during long-term magnetic storms KW ionosphere KW magnetosphere KW polarization jet KW SME index KW plasma drift KW narrow dip KW magnetic storm and substorm JO Solar-Terrestrial Physics AU Stepanov, A.E. AU Danilov, S.I. AU Baishev, D.G. AU Khalipov, V.L. AU Kotova, G.A. PY 2024 IS 10 PB INFRA-M Academic Publishing LLC.