The Response of the Airglow of the Mesopause Region to Short-Term Changes in Solar Activity

The influence of the 27-day solar oscillation on the temperature and intensity of the airglow of the mesopause region based on the hourly midnight observations of the О 2 А(0-1) and ОН(6-2) bands at the Zvenigorod Scientific Station in 2000−2021 has been studied. It is found that the response to solar activity changes is observed in all characteristics of the atmospheric emissions both by the yearly and seasonal data. They are statistically significant for all characteristics of the atmospheric emissions in winter and only for the О 2 А(0-1) intensity in summer. The positive response of the molecular oxygen emission is lower in the summer than in the winter by approximately a factor of 2. It is found that the variations in the atmospheric emission characteristics are close to antiphase with a 27-day solar oscillation. At the same time, the temperature of the emitting hydroxyl in winter undergoes oscillations with a shift by a third of the period relative to the solar variation maximum.