%0 Conference Article %T ON THE ORIGIN OF ATMOSPHERIC OSCILLATIONS WITH PERIODS OF 27.32 AND 13.78 DAYS %A Percev, N.N. %A Dalin, P.A. %A Perminov, V.I. %K atmosphere, solar indices, atmospheric oscillations %J The XXXI International Symposium "Atmospheric and Ocean Optics. Atmospheric Physics" %D 2025 %P 4 %I V.E. Zuev Institute of Atmospheric Optics, Siberian Branch of the Russian Academy of Sciences