scholarly journals Methods and Experiments for Sensing Variations in Solar Activity and Defining Their Impact on Heart Variability

Sensors ◽  
2021 ◽  
Vol 21 (14) ◽  
pp. 4817
Author(s):  
Michael Hanzelka ◽  
Jiří Dan ◽  
Zoltán Szabó ◽  
Zdeněk Roubal ◽  
Přemysl Dohnal ◽  
...  
Keyword(s):  
Solar Activity ◽  
Social Interactions ◽  
Charged Particles ◽  
The Sun ◽  
Relevant Research ◽  
Factors Affecting ◽  
Low Level ◽  
The Earth ◽  
Psychophysiological Data ◽  
Human Nervous System

This paper evaluates variations in solar activity and their impact on the human nervous system, including the manner in which human behavior and decision-making reflect such effects in the context of (symmetrical) social interactions. The relevant research showed that solar activity, manifesting itself through the exposure of the Earth to charged particles from the Sun, affects heart variability. The evaluation methods focused on examining the relationships between selected psychophysiological data and solar activity, which generally causes major alterations in the low-level electromagnetic field. The investigation within this paper revealed that low-level EMF changes are among the factors affecting heart rate variability and, thus, also variations at the spectral level of the rate, in the VLF, (f = 0.01–0.04 Hz), LF (f = 0.04–0.15 Hz), and HF (f = 0.15 až 0.40 Hz) bands. The results of the presented experiments can also be interpreted as an indirect explanation of sudden deaths and heart failures.

scholarly journals Human Psychophysiology Is Influenced by Low-Level Magnetic Fields: Solar Activity as the Cause

Atmosphere ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 1600
Author(s):  
Michael Hanzelka ◽  
Jiří Dan ◽  
Pavel Fiala ◽  
Přemysl Dohnal
Keyword(s):  
Decision Making ◽  
Solar Wind ◽  
Solar Activity ◽  
Geomagnetic Field ◽  
Charged Particles ◽  
The Body ◽  
The Sun ◽  
The Earth ◽  
The Impact ◽  
Electrically Charged

We evaluate the impact of changes in solar activity on three significant human psychophysiological parameters: skin conductance, electromyography (EMG), and the share of abdominal and diaphragmatic breathing in overall ventilation. Variations affecting human psychophysiology due to changes in solar activity directly document the assertion that psychology, behavior, and decision-making all reflect geomagnetic field alterations that stem from variable solar activity. The relevant experiments showed that solar processes, during which the Earth is exposed to electrically charged particles from the Sun (solar wind), exert an impact on the psychophysiological parameters of the body.

Influence of supernovae, gamma-ray bursts, solar flares, and cosmic rays on the terrestrial environment

2008 ◽  
Author(s):  
Arnon Dar
Keyword(s):  
Solar Activity ◽  
Cosmic Rays ◽  
Gamma Ray ◽  
Cosmic Ray ◽  
Gamma Ray Bursts ◽  
The Sun ◽  
Terrestrial Environment ◽  
The Earth ◽  
The Galaxy ◽  
Threat To Life

Changes in the solar neighbourhood due to the motion of the sun in the Galaxy, solar evolution, and Galactic stellar evolution influence the terrestrial environment and expose life on the Earth to cosmic hazards. Such cosmic hazards include impact of near-Earth objects (NEOs), global climatic changes due to variations in solar activity and exposure of the Earth to very large fluxes of radiations and cosmic rays from Galactic supernova (SN) explosions and gamma-ray bursts (GRBs). Such cosmic hazards are of low probability, but their influence on the terrestrial environment and their catastrophic consequences, as evident from geological records, justify their detailed study, and the development of rational strategies, which may minimize their threat to life and to the survival of the human race on this planet. In this chapter I shall concentrate on threats to life from increased levels of radiation and cosmic ray (CR) flux that reach the atmosphere as a result of (1) changes in solar luminosity, (2) changes in the solar environment owing to the motion of the sun around the Galactic centre and in particular, owing to its passage through the spiral arms of the Galaxy, (3) the oscillatory displacement of the solar system perpendicular to the Galactic plane, (4) solar activity, (5) Galactic SN explosions, (6) GRBs, and (7) cosmic ray bursts (CRBs). The credibility of various cosmic threats will be tested by examining whether such events could have caused some of the major mass extinctions that took place on planet Earth and were documented relatively well in the geological records of the past 500 million years (Myr). A credible claim of a global threat to life from a change in global irradiation must first demonstrate that the anticipated change is larger than the periodical changes in irradiation caused by the motions of the Earth, to which terrestrial life has adjusted itself. Most of the energy of the sun is radiated in the visible range. The atmosphere is highly transparent to this visible light but is very opaque to almost all other bands of the electromagnetic spectrum except radio waves, whose production by the sun is rather small.

scholarly journals The east-west asymmetry in Coronal Mass Ejections: evidence for active longitudes

2005 ◽  
Vol 23 (9) ◽  
pp. 3139-3147 ◽  
Author(s):  
M. Skirgiello
Keyword(s):  
Solar Activity ◽  
Southern Hemisphere ◽  
Coronal Mass Ejections ◽  
Solar Rotation ◽  
Occurrence Rate ◽  
The Sun ◽  
The Earth ◽  
Orbital Revolution ◽  
Time Periods ◽  
East West

Abstract. Various manifestations of solar activity are not uniformly distributed with heliographic longitude. By using east-west asymmetry in the occurrence rate of CMEs (coronal mass ejections), the longitudinal dependence in SOHO LASCO 1996-2004 data has been studied in this work. The solar rotation periodicity has been found, indicating the presence of active longitudes, whose phase is reversed twice during the studied period. It is more prominent in the Southern Hemisphere. The east-west asymmetry is also present when calculated for longer time periods. Sometimes (particularly during low solar activity), there is an alternation of the eastern and western domination every six months. Taking into account the orbital revolution of the Earth about the Sun, this indicates the existence of enhanced activity, fixed in space (not undergoing Carrington rotation). Moreover, there is about a 3.7% overall excess of western events, lasting for the entire reported time, suggesting some bias in the observations. A hypothesis to explain this phenomenon is proposed.

scholarly journals Effect of solar activity on electromagnetic fields and seismicity of the Earth

2021 ◽  
Vol 929 (1) ◽  
pp. 012019
Author(s):  
N.T. Tarasov
Keyword(s):  
Solar Activity ◽  
Ionizing Radiation ◽  
Total Energy ◽  
Electromagnetic Radiation ◽  
Electromagnetic Fields ◽  
Geomagnetic Storms ◽  
The Sun ◽  
Strong Earthquakes ◽  
Probability Of Occurrence ◽  
The Earth

Abstract It is shown that bursts of intensity of ionizing electromagnetic radiation from the Sun, as well as geomagnetic storms, cause a statistically significant decrease in the total number of earthquakes on Earth. After bursts of ionizing radiation from the Sun, a statistically significant decrease in the total energy of earthquakes occurs, and after geomagnetic storms, its increase is observed. This is mainly due to an increase in the number of the strongest earthquakes with MS > 7 after geomagnetic storms and a decrease in the number of such earthquakes after bursts of ionizing electromagnetic radiation from the Sun. During geomagnetic storms and for several days after them, the probability of occurrence of strong earthquakes increases more than two times, and after bursts of ionizing electromagnetic radiation from the Sun, this probability decreases almost twice.

scholarly journals On the nonlinear and Solar-forced nature of the Chandler wobble in the Earth's pole motion

2019 ◽  
Author(s):  
Dmitry M. Sonechkin
Keyword(s):  
Solar Activity ◽  
Activity Index ◽  
Nonlinear Differential Equations ◽  
Harmonic Oscillation ◽  
Chandler Wobble ◽  
The Sun ◽  
Solar Activity Index ◽  
The Earth ◽  
Rotation Of The Earth

Abstract. About 250 years ago L. Euler has derived a system of three quadratic-nonlinear differential equations to depict the rotation of the Earth as a rigid body. Neglecting a small distinction between the equatorial inertia moments, he reduced this system to much simpler linear one, and concluded that the Earth's pole must experience a harmonic oscillation of the 304-day period. Astronomers could not find this oscillation, but instead, S.C Chandler has found two powerful wobbles with the 12- and ~ 14-month periods in reality. Adhering to the Euler's linearization, astronomers can not explain the nature of the later wobble up to now. I indicate that the neglect by the above small distinction (“a small parameter” of the Euler's primary nonlinear equations) is not admissible because the effect of this parameter is singular. Analysing the primary equations by an asymptotic technique, I demonstrate that the Chandler wobble tones are formed from combinational harmonics of the Euler's 304-day oscillation, long-term Luni-Solar tides as well as the 22-year cycle of the heliomagnetic activity. Correlating simultaneous variations of the wobble and a solar activity index, I corroborate that the Chandler wobble is really affected by the Sun.

scholarly journals Short-term variation of the Earth's rotation and the solar activity

1988 ◽  
Vol 128 ◽  
pp. 353-358 ◽  
Author(s):  
D. Djurovic ◽  
P. Paquet
Keyword(s):  
Spectral Analysis ◽  
Angular Momentum ◽  
Solar Activity ◽  
Earth Rotation ◽  
Cyclic Variation ◽  
The Sun ◽  
Physical Processes ◽  
Short Term ◽  
The Earth ◽  
Term Variation

In 1980, Feissel et al. identified a quasi–cyclic variation of 55 days in the irregularities of the Earth Rotation (ER) later detected in the Atmospheric Angular Momentum (AAM) (Langley et al., 1981). The purpose of this work is to analyse whether the causes of this cycle could lie in the physical processes of the Sun. The Wolf Numbers (WN) are used as parameters of the solar activity. Their spectral analysis over the period 1967–1985 shows such a component at 51 days. Analysis of three other periods, among which is the MERIT campaign, confirms it as well as during low or increasing solar activity periods.

scholarly journals The History of Activity of the Sun and its Rotational Period on the ZAMS

1991 ◽  
Vol 130 ◽  
pp. 288-293
Author(s):  
Kazimierz Stępień
Keyword(s):  
Solar Activity ◽  
Initial Period ◽  
Rotation Period ◽  
The Sun ◽  
Emission Flux ◽  
Rotational Period ◽  
X Ray ◽  
The Earth ◽  
Evolution Of Life ◽  
History Of

AbstractThe rotation period of the Sun after it reached ZAMS is estimated from the present rotation rate, average X-ray emission flux and average calcium emission flux. Taking into account all existing uncertainties it is concluded that this initial period was within the range 1–9 days, with the most probable value 2–3 days. Possible influence of the solar activity on evolution of life on the Earth is briefly discussed.

scholarly journals The connection between solar wind charged particles and tornadoes: Case analysis

2013 ◽  
Vol 28 (1) ◽  
pp. 52-59 ◽  
Author(s):  
Milan Radovanovic ◽  
Bosko Milovanovic ◽  
Mila Pavlovic ◽  
Aleksandar Radivojevic ◽  
Milan Stevancevic
Keyword(s):  
Solar Wind ◽  
Solar Activity ◽  
Low Temperatures ◽  
Charged Particles ◽  
Case Analysis ◽  
The Other ◽  
Mass Movements ◽  
The Sun ◽  
Air Mass ◽  
Potential Link

The temperature of charged particles coming from the Sun ranges from several hundred thousands to several millions ?C, in extreme cases. Theoretical possibilities of the hydrodynamic air mass seizing by charged particles, i. e. solar wind, are discussed in this paper. On one hand, they are characterized by extremely high temperatures, on the other, by the compression of cold air at an approximate altitude of 90 km towards the top of the cloud of the cyclone, they influence the phenomenon of extremely low temperatures. By using the Mann-Whitney U test we have tried to determine the potential link between certain indicators of solar activity and resulting disturbances in the atmosphere. Analyzed data refer to global daily values for the 2004-2010 period. Our results confirm the possibility of coupling between the charged particles and the vortex air mass movements, based on which a more detailed study of the appearance of a tornado near Sombor on May 12th, 2010, was carried out. It has also been proven that there are grounds for a causality between the sudden arrival of the solar wind charged particles, i. e. protons, and the appearance of a tornado. Based on the presented approach, elements for an entirely novel prediction model are given.

scholarly journals Application of the wavelet phase method of signal study to the analysis of asymmetric barycentric motions of the Sun and changes in processes occurring on the Sun, near-earth space and in the interior of the Earth

2021 ◽  
Vol 16 (3) ◽  
pp. 7-35
Author(s):  
Valeriy I. Alekseev
Keyword(s):  
Solar Activity ◽  
Solar System ◽  
Cosmic Ray ◽  
Volcanic Eruptions ◽  
Rate Of Change ◽  
Phase Method ◽  
The Sun ◽  
Correlation Matrices ◽  
Solar Systems ◽  
The Earth

A set of studies has been carried out, indicating that solar activity and processes associated with the activity of the Sun: changes in the main magnetic fluxes, areas of polar spots, the number of polar torches at the poles of the Sun; -index of geomagnetic activity and -index of the ratio of plasma pressure to magnetic solar wind (SW), slow and high-speed flows of SW, cosmic ray intensity (CR); average annual values of the interplanetary magnetic field vector and its components; the temperature, density, and flow rate of the SW plasma, the synodic period of the revolution of the Sun as a star, and the radius of the Sun in relative units; the distance of the Earths geographic pole from the conventional international origin, the rate of change of the position of the Earths north magnetic pole, the main ionospheric parameters; the angle of the Earth's axis of rotation and volcanic eruptions; asymmetric movement of the Sun around the solar system of the solar system (in fractions of the solar radius); the distances from the solar systems CM to the Sun in km, the distances from the solar systems CM to the Earth, with high accuracy, are consistent with the movement of the Sun relative to the barycenter. The research is based on the wavelet transformation of the observations listed above variables in various time intervals with the subsequent calculation of their phase-frequency and phase-time characteristics, correlation matrices between characteristics. The studied variables are divided into groups, which include the barycentric movement of the Sun and changes in solar activity. The calculated two correlation matrices of the wavelet characteristics of the group of variables and the graphs of these characteristics in two coordinate systems reflect the consistency of changes in the group. The studies carried out indicate that the thermonuclear reaction occurring in the interior of the Sun, the external manifestation of which is solar activity, is controlled by the movements of the large planets of the Solar System relative to the Sun.

scholarly journals The Sun Service KRIM - diagnostic complex of solar activity

2019 ◽  
Vol 30 ◽  
pp. 15003
Author(s):  
Alexander Volvach ◽  
Olga Gopasyuk ◽  
Inna Yakubovskaya
Keyword(s):  
Solar Activity ◽  
Correlation Coefficients ◽  
The Sun ◽  
Radio Telescopes ◽  
Short Term ◽  
X Ray ◽  
Daily Monitoring ◽  
The Earth ◽  
Term Forecast ◽  
Diagnostic Complex

The radio astronomical diagnostic complex of solar activity, created on the basis of the radio telescope RT-22 and three small radiotelescopes united in the Sun Service KRIM located in coordinates longitude 33° 59' 30" latitude 44° 23' 52", conducts simultaneous observations in the wavelength range from 8 mm to 1.2 m in the monitoring mode and alerts. The Sun Service KRIM registered a series of strong outbreaks in the Sun in September 2017, when it was at a minimum of its activity. The information obtained by radio telescopes correlates well with data from other terrestrial and satellite observatories such as RSTN and GOES. Correlation coefficients are calculated and scattering diagrams for X-ray class flares X9.3 and X2.2 are constructed. The information from the radio telescopes of the Sun Service KRIM allows them to be used for daily monitoring of solar activity, further processing of data obtained in the course of scientific research, short-term forecast of space weather and analysis of its infuence on the Earth.

Sign in / Sign up

Export Citation Format

Share Document