Analysis Of The Relationship Between Planetary Calamity, The Rate Of Rotation Of The Sun, And Solar Activity

Studies have shown that solar activity has had a non-negligible impact on the Earth's climate change.However,there is still controversy about the cause of solar activity.Recent studies have found that there is a certain connection between the solar rotation rate and solar activity,but the conclusions of different scholars are contradictory: some believe that the two are positively correlated,while some believe that the two are negatively correlated.What is the relationship between the two requires further in-depth analysis.This paper uses Ensemble Empirical Mode Decomposition method and other methods to calculate and analyze the correlation and phase relationship between the solar rotation rate and sunspot data series.One of the solar rotation rates is obtained from the observation of the sunspot groups,and the other is calculated through the principle of conservation of angular momentum of the solar system and the planetary synodic index.They are compared with sunspots to explore the relationship between the solar rotation rate change and the solar activity,and the possible connection with planetary movement.The study found:1.The observed solar equatorial rotation rate lags the sunspot variation by about2 years on a period component of about 11 years and is negatively correlated,which indicates the negative suppression or feedback effect of solar activity change on the change of solar rotation rate.On the 20-year cycle component,the observed solar rotation rate lags the sunspots variation by 13 years,and shows a positively correlation.It shows that the change of the solar rotation rate has a positive driving or stimulating effect on the change of solar activity.2.The variation of the solar equatorial rotation rate,calculated by the conversion of the angular momentum of sun's revolution and self-rotation,has a positive correlation with the 20-year period component leading the 20-year period component of sunspots by 7 years.It further indicates the role of solar rotation rate change in driving or stimulating effect on solar activity.3.Analysis of the correlation between sunspots and the solar rotation rate within each week of solar activity from 12 to 23 weeks shows that the two are negatively correlated in majority(75%)of the solar activity weeks.The correlation analysis of the long-term trend components for 1874-2013 also shows a significant negative correlation between sunspots and the solar rotation rate.All these indicate the existence of the braking effect of magnetic field: that is,when the solar activity increases and the magnetic field strength enhances,the solar rotation is resisted by the solar system magnetic field and the planetary magnetic field,resulting in a decrease in the solar rotation rate;when the solar activity weakens and the magnetic field strength decreases,the solar rotation is resisted less by the solar system magnetic field and the planetary magnetic field,thereby increasing the solar rotation rate.4.There is a close connection among planetary movement,solar rotation rate,solar activity and climate change on Earth: the movement of the planets leads to a relative change of the solar system's center of mass relative to the position of solar center of mass,which triggers a mutual conversion of the angular momentum of the solar revolution around solar system's center of mass and the angular momentum of self-rotation.This causes a change in the solar rotation rate which drives or triggers a change in solar activity.The change in solar activity changes the total solar radiation which in turn affects the climate change.The further clarification of this chain of relationships contributes to a deeper understanding of the causal links between planetary movement and climate change.