“…In the lower frequency range of periods (from 15 min to several days), the researchers focus their main attention on studying the physics of origin, development and transformation of oscillations and waves, caused by: 1) Eigen oscillations of the Earth (Bullen, 1975;Park et al, 2008;Sobolev, 2013); 2) tidal processes of the atmosphere, hydrosphere and lithosphere; 3) eigen oscillations of certain bays, gulfs, seas and oceans (Dolgikh et al, 2011); 4) largescale atmospheric processes (Shved et al, 2013) and anthropogenic processes (Guglielmi and Zotov, 2013) It was shown in (Shved et al, 2013) that many oscillations, recorded by vertical seismometers, gravimeters, strainmeters, and tiltmeters are caused by the above motions-atmospheric thermal tide harmonics, eigen oscillations of the atmosphere, Madden-Julian oscillation in the atmosphere-ocean system, atmospheric planetary Rossby waves.…”