00710naa#a2200181#i#450# EN\\bibl\86524 20260314133742.6 2712-9640 20250326b2025####ek#y0engy0150####ca RU Diurnal variations in characteristics of sporadic layer Eₛ over Irkutsk Journal article Irkutsk Institute of Solar-Terrestrial Physics SB RAS 2025 6 с. Journal article local Астрономия. Астрофизика. Исследование космического пространства. Геодезия. 52 Voronova Ekaterina Yurevna Ratovsky Konstantin Gennadyevich ras.editorum.ru