Cosmic Research

, Volume 56, Issue 2, pp 101–107 | Cite as

Dynamics of Quasi-Biennal Variations of Cosmic Rays and Solar Activity

  • V. P. Okhlopkov


The quasi-biennial variations in the flux of galactic cosmic rays (GCRs) have been studied based on the data of stratospheric sensing and measurements by neutron monitors, as well as in various manifestations of solar activity and interplanetary medium parameters. It has been shown that quasi-biennial GCR variations are caused by variations with the same period in the mean magnetic field of the Sun that coincide with them over time and have been identified in the anti-phase, which respond to the sign of this field. The variations in the quasi-biennial cosmic ray are caused by quasi-biennial variations in the mean magnetic field of the Sun via the quasi-biennial variations in the interplanetary magnetic field.


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  1. 1.
    Charakhchyan, T.N., Okhlopkov, V.P., and Okhlopkova, L.S., Two-year cosmic ray variations, in Sixth European Cosmic Ray Symposium, Kiel, 1978, vol. 36, p. 44.Google Scholar
  2. 2.
    Okhlopkov, V.P., Okhlopkova, L.S., and Charakhchyan, T.N., Two-year cosmic ray variations, Geomagn. Aeron., 1979, vol. 19, no. 3, pp. 431–438.ADSGoogle Scholar
  3. 3.
    Chumbalova, R.A., Erkhov, V.I., Kolomeets, E.V., et al., Investigation of modulation and long term variation of cosmic rays, in Proc. 16th ICRC, Kyoto, 1979, vol. 3, pp. 348–353.Google Scholar
  4. 4.
    Charakhchyan, T.N., Okhlopkov, V.P., and Okhlopkova, L.S., Two-year cosmic ray variations in the stratosphere, in Proc. 16th ICRC, Kyoto, 1979, vol. 3, pp. 297–301.Google Scholar
  5. 5.
    Mitra, B. and Ganguly, S.R., Variation of cosmic ray intensity with periods of 16-month and 2-year, in Proc. 20th ICRC, Moscow, 1987, vol. 3, pp. 341–344.Google Scholar
  6. 6.
    Okhlopkov, V.P., General magnetic field of the Sun and two-year variations of galactic cosmic rays, in Proc. 22th ICRC, Dublin, 1991, vol. 3, pp. 431–436.Google Scholar
  7. 7.
    Okhlopkov, V.P., Long-period variations of cosmic rays and the global magnetic field of the Sun, Sol. Syst. Res., 2000, vol. 34, no. 2, pp. 139–142.ADSGoogle Scholar
  8. 8.
    Kotov, V.A., Demidov, M.L., Khaneichuk, V.I., et al., 25 years of investigating the magnetic field of the Sun as a star, Izv. Krym. Astrofiz. Obs., 1998, vol. 94, pp. 118–122.Google Scholar
  9. 9.
    Rybak, J., Antalova, A., and Storini, M., The wavelet analysis of the solar and cosmic-ray data, Space Sci. Rev., 2001, vol. 97, pp. 359–362. doi 10.1023/A:1011805923567ADSCrossRefGoogle Scholar
  10. 10.
    Valdés-Galicia, J.F., Pérez-Enríquez, R., and Otaola, J.A., The cosmic-ray 1.68-year variation: A clue to understand the nature of the solar cycle?, Sol. Phys., 1996, vol. 167, no. 1, pp. 409–417.ADSCrossRefGoogle Scholar
  11. 11.
    Kudela, K., Rybak, J., Antalova, A., et al., Time evolution of low-frequency periodicities in cosmic ray intensity, Sol. Phys., 2002, vol. 205, no. 1, pp. 165–175. doi 10.1023/A:1013869322693ADSCrossRefGoogle Scholar
  12. 12.
    Kato, C., Munakata, K., Yasue, S., et al., A ~1.7-year quasi-periodicity in cosmic ray intensity variation observed in the outer heliosphere, J. Geophys. Res.: Space Phys., 2003, vol. 108, no. A10, 1367. doi 10.1029/2003JA009897ADSCrossRefGoogle Scholar
  13. 13.
    Laurenza, M., Vecchio, A., Storini, M., and Carbone, V., Quasi-biennial modulation of galactic cosmic rays, Astrophys. J., 2012, vol. 749, no. 2, id 167.Google Scholar
  14. 14.
    Bazilevskaya, G., Broomhall, A.M., Elsworth, Y., and Nakariakov, V.M., A combined analysis of the observational aspects of the quasi-biennial oscillation in solar magnetic activity, Space Sci. Rev., 2014, vol. 186, nos. 1–4, pp. 359–386. doi 10.1007/s11214-014-0068-0ADSCrossRefGoogle Scholar
  15. 15.
    Bazilevskaya, G.A., Kalinin, M.S., Krainev, M.B., et al., On the relationship between quasi-biennial variations of solar activity, the heliospheric magnetic field and cosmic rays, Cosmic Res., 2016, vol. 54, no. 3, pp. 171–177.Google Scholar
  16. 16.
    Benevolenskaya, E.E., A model of the double magnetic cycle of the Sun, Astrophys. J. Lett., 1998, vol. 509, pp. L49–L52. doi 10.1086/311755ADSCrossRefGoogle Scholar
  17. 17.
    Popova, E.P. and Yukhina, N.A., The quasi-biennial cycle of solar activity and dynamo theory, Astron. Lett., 2013, vol. 39, no. 10, pp. 729–735. doi 10.1134/S1063773713100046ADSCrossRefGoogle Scholar
  18. 18.
    Druzhinin, I.P., Sazonov, B.I., and Yagodinskii, V.N., Kosmos–Zemlya. Prognozy (Space–Earth: Predictions), Moscow: Mysl’, 1974.Google Scholar
  19. 19.
    Gruzdev, A.N. and Bezverkhnii, V.A., Long-term variations in the quasi-biennial oscillation of the equatorial stratospheric wind, Izv., Atmos. Ocean. Phys., 1999, vol. 35, no. 6, pp. 700–711.Google Scholar
  20. 20.
    Fadel, Kh.M., Semenov, A.I., Shefov, N.N., et al., Quasibiennial variations in the temperatures of the mesopause and lower thermosphere and solar activity, Geomagn. Aeron. (Engl. Transl.), 2002, vol. 42, no. 2, pp. 191–195.Google Scholar
  21. 21.
    Ivanov-Kholodnyi, G.S., Mogilevskii, E.I., and Chertoprud, V.E., Solar and ionospheric quasibiennial variations, Geomagn. Aeron. (Engl. Transl.), 2002, vol. 42, no. 2, pp. 187–190.Google Scholar
  22. 22.
    Stozhkov, Y.I., Svirzhevsky, N.S., Bazilevskaya, G.A., et al., Data on galactic cosmic ray fluxes according to the measurement in the atmosphere (1957–2007), Preprint of Lebedev Physical Institute, Russ. Acad. Sci., Moscow, 2007.Google Scholar
  23. 23.
    Okhlopkov, V.P., Variatsii kosmicheskikh luchei i issledovaniya kosmosa (Cosmic Ray Variations and Space Research), Moscow: Nauka, 1986.Google Scholar
  24. 24.
    Okhlopkov, V.P., Distinctive properties of the frequency spectra of cosmic ray variations and parameters of solar activity and the interplanetary medium in solar cycles 20–23, Moscow Univ. Phys. Bull., 2011, vol. 66, no. 1, pp. 99–103.ADSCrossRefGoogle Scholar

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© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  1. 1.Skobeltsyn Research Institute of Nuclear PhysicsMoscow State UniversityMoscowRussia

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