01105naa#a2200217#i#450# EN\\bibl\16546 20250713042445.7 20250626b2025####ek#y0engy0150####ca RU REGRESSION MODELS ANALYSIS OF THE DEPENDENCES ELECTRON CONCENTRATION OF THE F2 LAYER IONOSPHERE MAXIMUM ON SOLAR ACTIVITY AND YEARLY SEASONS BASED ON THE TOMSK IONOSPHERIC STATION DATA Conference article/thesis Tomsk V.E. Zuev Institute of Atmospheric Optics, Siberian Branch of the Russian Academy of Sciences 2025 3 с. Экология и природопользование. 05.04.06 local Conference article/thesis local Физические свойства. Состав и строение атмосферы. 551.510 Земля в целом. 260 bbk Физика атмосферы. 6326 tbk Геомагнетизм и высокие слои атмосферы. 37.15 grnti Borisevich A. N. Kolesnik Sergey Anatol'evich iao.editorum.ru