Search

The 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 BCE to 3000 CE are formed. Series of 108-year moving averages of the annual frequencies of lunar and solar eclipses are computed separately. A 580-year cycle of lunar and solar eclipses is detected. A spectral analysis of the raw eclipse series has confirmed the existence of a 580-year cycle in lunar and solar eclipses. The smoothed eclipse series are 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 is conducted. A further comparison over the period of CE 145 to 1350 BCE is 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 is found to be ±50 years. The conclusion is drawn that climate changes over the last 3100 years 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. [ABSTRACT FROM AUTHOR]

Perigean spring tides in the atmosphere are discussed. In 2016–2017, the smoothed anomalies of air temperature over European Russia were found to repeat the evolution of the distance of the perigee (i.e., the distance between the Moon and the Earth at times when the former is at the perigee), which varies as a sine function with a period of about 206 days. The origin of the 206-day lunar cycle is described. Atmospheric spring tides are studied. They are exhibited as atmospheric pressure oscillations similar to perigean spring oscillations of the sea level. The basic dependence of perigean spring tides in the form of beats of atmospheric pressure anomalies at new and full moons is found. The pressure anomalies at full and new moons can be approximated by sinusoids with beat envelope periods of about 412 days and with opposite phases. The range of oscillations at antinodes reaches 40 mb, which is comparable, in order of magnitude, with actual mesoscale fluctuations of atmospheric pressure. The violations in seasonal weather variation caused by the 206-day lunar cycle are described. [ABSTRACT FROM AUTHOR]

This paper is devoted to the synchronization of synoptic processes in the atmosphere with tidal oscillations in the Earth's rotational speed discovered by the author. The causes and effects of the synchronization are explained. Data are given on the monthly revolution of the Earth, tidal oscillations in the Earth's rotational speed, and the main lunisolar cycles. An explanation is proposed for the causes of the Mul'tanovskii elementary synoptic periods and the manifestations of 4- and 8-year cycles in the climate system. It is shown that the 35-year Brückner cycle is attributed to the beat of the annual solar (365 days) and annual lunar (355 days) oscillations in meteorological characteristics. An explanation is proposed for how the lunisolar tides may affect the air temperature, which is based on the interaction of the gravitational lunisolar tides with the radiation conditions in the atmosphere (due to changes in the cloud cover). A discussion is given of the relationship between the fluctuations in the climatic characteristics and the change in the Earth's rotational speed on decadal time scales. [ABSTRACT FROM AUTHOR]

Regular variation in the solid runoff of Antarctic glaciers with the period of 18.6 years is revealed as a result of long-term observations. It is demonstrated that the periodicity of the solid runoff correlates with the 18.6-year periodicity of the Earth's angular velocity variations caused by the 18.6-year cyclicity of the variability of lunisolar tides. It is revealed that the vibratory gravitational sliding of glaciers to the sea is registered due to the tidal fluctuations along with many climate processes. The iceberg runoff lags as compared with the course of the variance of tidal fluctuations of the angular velocity approximately by six years. [ABSTRACT FROM AUTHOR]

Presented are the explanations of reasons for the anomalous heat in summer of 2010 in the central area of the European part of Russia. It is demonstrated that this event occurred due to the beating of the solar annual (365 days) and lunar annual (355 days) fluctuations of air temperature. To substantiate this conclusion, the data are given on the synchronization of changes in atmospheric processes with the tidal variations of the Earth's rotation velocity and on the nature of lunar cycles. Illustrated are the evidences of their existence in air temperature fluctuations. Revealed is the sequence of anomalously hot summer seasons in 1901, 1936 (1938), 1972, and 2010 corroborating the existence of the 35-year period of air temperature beats. Proposed is a mechanism of the impact of luni-solar tides on the air temperature based on the interaction between the gravitational luni-solar tides and the radiation conditions in the atmosphere (caused by the cloudiness amount variations). [ABSTRACT FROM AUTHOR]

This paper generalizes the results of investigations on the instabilities of the Earth’s rotation and related geophysical processes. Long series of observations of the Earth’s orientation parameters are demonstrated. The tidal variations in the length of the day are described. The temporal variations in the atmospheric angular momentum and their contribution to the instabilities of the Earth’s rotation are studied. The mechanisms of seasonal variations in the length of the day and polar motion are discussed. The probable geophysical processes responsible for the decades-long (2–100 years) instability of the Earth’s rotation are discussed. [ABSTRACT FROM AUTHOR]

The paper presents calculated spectra of El Niño Southern oscillation (ENSO) indices. The ENSO spectra have components with periods that are multiples of the Earth’s free (1.2 years) and forced (18.6 years) nutation periods. Analysis of a 41-year series of exciting functions for the atmospheric angular momentum confirms the existence of such periodicity. Nutation waves responsible for the El Niño phenomena in the ocean, the Southern oscillation in the atmosphere, and the presence of subharmonics of the Chandler period (1.2 years) and superharmonics of the lunar period (18.6 years) in the ENSO spectra are described. A model for the nonlinear nutation of the Earth–ocean–atmosphere system is constructed. In this model, the ENSO, acting at frequencies of combinational resonances, excites the Chandler wobble of the Earth’s poles. At the same time, this wobble interacts with the nutation motions of the atmosphere and World Ocean. © 2000 MAIK “Nauka / Interperiodica”. [ABSTRACT FROM AUTHOR]