ABSTRACT
Evidence is presented to show that the phases of two of the Earth’s major climate systems, the North Atlantic Oscillation (NAO) and the Pacific Decadal Oscillation (PDO), are related to changes in the Earth’s rotation rate. We find that the winter NAO index depends upon the time rate of change of the Earth’s length of day (LOD). In addition, we find that there is a remarkable correlation between the years where the phase of the PDO is most positive and the years where the deviation of the Earth’s LOD from its long-term trend is greatest.
In order to prove that the variations in the NAO and PDO indices are caused by changes in the Earth’s rotation rate, and not the other way around, we show that there is a strong correlation between the times of maximum deviation of the Earth’s LOD from its long-term trend and the times where there are abrupt asymmetries in the motion of the Sun about the CM of the Solar System.
At first glance, there does not appear to be an obvious physical phenomenon that would link the Sun’s motion about the Solar System’s CM to the Earth’s rotation rate. However, such a link could occur if the rate of precession of the line-of-nodes of the Moon’s orbit were synchronized with orbital periods of Terrestrial planets and Jupiter, which in turn would have to be synchronized with the orbital periods of the three remaining Jovian planets. In this case, the orbital periods of the Jovian planets, which cause the asymmetries in the Sun’s motion about the CM, would be synchronized with a phenomenon that is known to cause variations in the Earth’s rotation rate, namely the long term lunar tides.
The periodicities seen in the asymmetry of the solar motion about the CM are all submultiples of the 179 year Jose cycle, with the dominant periods being 1/5 (= 35.87 yrs), 1/9 (= 19.86 yrs) and 1/14 (12.78 yrs). In addition, the realignment time for the orbits of Venus, Earth and Jupiter is a ¼ of the 179 year Jose cycle (= 44.77 yrs).
Through what appears to be a “Grand Cosmic Conspiracy” we find that:
6.393 yrs = (the 179 year repetition cycle of the Solar motion about the CM) / 28
6.396 yrs = (the 44.77 year realignment time for Venus, Earth, and Jupiter) / 7
which just happens to be realignment time for orbits of the planets Venus, Earth and Mars (= 6.40 yrs).
The significance of the 6.40 year repetition period is given added weight by the fact that if you use it to modulate the sidereal year of the Earth/Moon system, the side-lobe period that is produced, almost perfectly matches the 2nd harmonic time interval over which there are the greatest changes in the meridional and zonal tidal stresses acting upon the Earth (1 ¼ TD = 433.2751 days = 1.18622 years, where TD is the draconitic year).
We know that the strongest planetary tidal forces acting on the lunar orbit come from the planets Venus, Mars and Jupiter. In addition, we known that, over the last 4.6 billion years, the Moon has slowly receded from the Earth. During the course of this lunar recession, there have been times when the orbital periods of Venus, Mars and Jupiter have been in resonance(s) with the precession rate for the line-of-nodes the lunar orbit. When these resonances have occurred, they would have greatly amplified the effects of the planetary tidal forces upon the lunar orbit. Hence, the observed synchronization between the precession rate of the line-of-nodes of the lunar orbit and the orbital periods of Venus, Earth, Mars and Jupiter, could simply be a cumulative fossil record left behind by these historical resonances.
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