Lunar Perturbations in Variations of Earth Angular Velocity and Atmospheric Pressure

B. G. Sherstyukov

The analysis of the contribution of lunar declination variations to the total variance of air pressure anomalies at meteorological stations of the global network is carried out on the basis of the data of daily observations. It is demonstrated that the changes in the declination of the Moon while moving around the Earth is accompanied by nonrandom variations of atmospheric pressure. Their manifestation depends significantly on the season and geographic latitude. The contribution of the lunar effect to the total variance of pressure anomalies is spatially inhomogeneous and amounts to 40% and more in the basic centers. The maximum effect is reached in the late spring or early summer in the corresponding hemisphere: in May and June in the Northern Hemisphere and in October and November in the Southern Hemisphere.