Geophysical processes and biosphere: article

Аnnotation: Synchronization of cycles of Lunar and Solar eclipses with climate changes is discussed. Time series of the annual frequencies of Lunar and Solar eclipses separately from 2000 BC to AD 3000 were formed. Series of 108-year moving averages of the annual frequencies of Lunar and Solar eclipses were computed separately. A 580-year cycle of Lunar and soLar eclipses was detected. A spectral analysis of the raw eclipse series confirmed the existence of a 580-year cycle in Lunar and Solar eclipses. The smoothed eclipse series were used to compute the boundaries of warm and cold climate intervals. A comparative analysis of these astronomical boundaries with empirical ones of warm and cold climate epochs over the last 1600 years according to climatologists F. Mayr and E. Le Roy Ladurie was conducted. A further comparison over the period of AD 145 to 1350 BC was made using V.V. Klimenko’s climate reconstructions over the Northern Hemisphere. The mean squared deviation of the empirical boundaries of warm and cold periods from the astronomical ones over 3100 years of comparison was found to be ±50 years. The conclusion was drawn that climate changes over the last 3100 years had occurred simultaneously with 580-year oscillations of the annual frequency of eclipses. It is emphasized that eclipses cannot influence the climate. They are only visible indicators of variations in the relative configurations of the Sun, Earth, and Moon, which affect the magnitude and direction of gravitational tidal forces, which in turn influence the Earth’s climate system.