TY JOUR TI Comparison of modeling of the polar cap absorption effect with observations at the AARI ground-based network KW solar cosmic rays KW geomagnetic cutoff KW high-latitude ionosphere KW ionosondes KW polar cap absorption JO Solnechno-Zemnaya Fizika AU Dmitriev, A.V. AU Dolgacheva, S.A. AU Troshichev, O.A. AU Pulinets, M.S. PY 2024 IS 10 PB INFRA-M Academic Publishing LLC.