Physics of auroral phenomena : proceedings of the 33rd Annual seminar, Apatity, 02 - 05 March, 2010 / [ed.: A.G. Yahnin, A. A. Mochalov]. - Апатиты : Издательство Кольского научного центра РАН, 2011. - 206 с. : ил.

E.S. Gorshkov at al. Correlations between CF and the relevant changes in SA, ET and EE during each year of the 21-year SA cycle were analyzed. It is obvious that the correlations are not equal: at the minimum and during the increase o f SA (1976- 1979) the correlation coefficients (r) for CF of UOHT and variations of ET and EE are negative, while at the maximum and during the decrease of SA (1980-1983) they are positive. The respective values o f the correlation coefficients (hereinafter p<0.05) are within the range from (-0.8) to 0.9 and from (-0.88) to 0.87. Also, value of r between CF of UOHT and ET and between CF ofUOHT and EE varies from (-0.42) in 1975 to 0.67 in 1984. The dynamics o f r rates for CF of UOHT and ET and CF of UOHT and EE during the studied period is virtually the same, which is explained with synchronous “behavior” of the two kinematic factors in spite o f a certain influence of the EE trend caused by the main nutation with the period of 18.6 years. It comes under notice that the correlations between CF of UOHT and SA and between CF o f UOHT and ET and EE are inverse, which indirectly proves that the very cosmophysical factors, particularly, SA and ET, has physical interrelations. Furthermore, there is no detectable direct relation between CF ofUOHT and SA variations, while the correlation between CF ofUOHT and ET and EE appeared obviously modulated by changes in SA during the 21-year cycle. 3. Cycles o f planet interactions in the Solar system and fluctuations in unithiol test results To detect rhythms with periods longer than 1 year, we studied the consequence o f experimental monthly average values ofUOHT (129 indications for the period of September 1974 - May 1985). In this context and due to real processes being poorly explored, we found a special interest in the cycles of interactions between celestial bodies in the Solar system (SS) determined by repeated similar relative positions o f two, three and more planets, which can be detected through systematic screening of planetary periodicities [5]. Planetary conjunctions (especially of two planets, up to Jupiter inclusively) occur quite frequently - every 3 to 27 months. Furthermore, the cyclic disturbances of interplanetary medium caused by the planetary conjunctions last from 19.1 to 78 months. Since solar plasma fluxes are registered at the Earth, it is reasonably admissible that the conjunctions o f Mercury-Venus (Mrc-Ven) and of Mercury-Earth (Mrc-Ert) manifest themselves in the geomagnetic data as the peaks relating to the 19- and 22-23-month cycles [6]. On the other hand, since the cosmic radiation comes mainly from the areas beyond the Earth’s orbit, we can expect the conjunctions o f Earth-Mars (Ert-Mar) and Earth-Jupiter (Ert-Jup) to be more efficient to some geophysical processes. These conjunctions relate to the 26-, 39-, 53- and 78-month cycles. The first of them has been well-known in meteorology for almost a hundred years. It is the so-called quasi-two-year cycle, which is almost absent in the spectrum of SA. The cycle’s presence in the terrestrial processes testifies in favour of their certain correlation to situation in the interplanetary space. The spectral analysis of the primary curve o f monthly average values of UOHT confirmed the presence o f the quasi-two-year cycle of 25.6 months. Until the present time, the vast majority of detected (or assumed) regularities in the chain of interrelations between the Sun and the interplanetary medium were the results o f statistic analysis o f ground-based observations, with correlation and spectral analyses engaged. As for temporal consequence of monthly average values ofUOHT, the capacities of the standard methods are apparently insufficient. This fact prompted us to use the method of adaptive filtration, which stands out among the common methods thanks to its ability to detect nonharmonic components in analyzed signal. Also, this method has already been applied in geophysics [for example, 7]. Engaging the data on heliocentric longitude of the planets in SS for 1974-1985, which are presented in annual star almanacs, allowed to detect the temporal moments of the inferior and superior (in respect of the Sun) conjunctions of Mercury and Venus (Mrc-Ven), Mercury and Earth (Mrc-Ert), Venus and Earth (Ven-Ert), as well as the oppositions and conjunctions o f Mercury and Mars (Mar), Jupiter (Jup), Saturn (Sat), Uranus (Urn), Neptune (Npt) and Pluto (Pit), etc. We performed a range of consequent calculation operations to estimate a probable relation between the rhythm of UOHT fluctuations and the periodicity of interactions o f the planets in the SS. Fig.l demonstrates the components ofUOHT S i ,..., S7 (curves 2-8) resulted from adaptive filtration of the primary range o f monthly average values (1) for the period of September 1974 - May 1985 (f is a bandwidth, 1/month). We also did spectral analysis ofUOHT fluctuations, its components and SA variations. The results are shown in Table 1 (periods of the first harmonics in bold). In agreement with the considerations above, we compared the detected periodicities to the periodicity of pair conjunctions of the planets. The interaction of each pair o f planets with their orbit times known is characterized with a quantitative measure - conjunction intensity (Cl) - that is the amount of conjunctions per month. The analysis of periods of planets’ Cl shows that there is one or several evident harmonics in the spectrums o f Cl of a range o f planets (Mrc-Jup, Mrc-Um, Mar-Um, Mar-Npt and Mar-Plt) having the same periods as UOHT harmonics and, to a lesser degree, SA harmonics. Also, a 64-month rhythm manifests itself in the spectra of UOHT, SA and Mrc-Jup Cl. There is a 42.67-month rhythm manifesting itself in the spectra o f S5, S6, S7, SA, Mrc-Ven Cl and Mrc-Ert Cl. 198