Annual variation of gas composition at the height of the ionospheric E layer

Автор: Givishvili G.V., Leshchenko L.N.

Журнал: Солнечно-земная физика @solnechno-zemnaya-fizika

Статья в выпуске: 14, 2009 года.

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We study results of analysis of seasonal variations in gas composition in the lower thermosphere (ionospheric E region) using ground-based ionospheric sounding data and satellite measurement data on the X-radiation flux obtained during solar X-ray flares. Contrary to previous ideas, peculiarities of annual variation of the E-layer critical frequency and its seasonal anomaly are explained by decrease in molecular oxygen content during the summer solstice rather than during the winter one.

Короткий адрес: https://sciup.org/142103381

IDR: 142103381

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