Moscow University Physics Bulletin

, Volume 73, Issue 2, pp 223–233 | Cite as

Quasiperiodic Variations of Solar Activity and Cosmic Rays

  • V. P. OkhlopkovEmail author
Astronomy, Astrophysics, and Cosmology


Quasiperiodic variations of various manifestations of solar activity, parameters of the interplanetary medium, and the flux of galactic cosmic rays (GCRs) are studied using the data of stratospheric sounding and measurements with neutron monitors. Groups of spectral components with periods of ~2, 1.3, and ~1 year are identified in the range of periods shorter than 5 years. Particular attention is paid to quasi-2-year GCR variations that are induced by similar variations of the mean magnetic field of the Sun and are integral to the processes of solar activity.


quasiperiodic variations solar activity galactic cosmic rays interplanetary magnetic field mean magnetic field of the Sun frequency spectrum mathematical selective filter 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    R. A. Chumbalova, V. I. Erkhov, E. V. Kolomeets, et al., in Proc. 16th Int. Cosmic Ray Conf., Kyoto, Japan, 1979, Vol. 3, p.348.Google Scholar
  2. 2.
    T. N. Charakhchyan, V. P. Okhlopkov, and L. S. Okhlopkova, in Proc. 6th European Cosmic Ray Symp., Kiel, Germany, 1978, p.44.Google Scholar
  3. 3.
    V. P. Okhlopkov, L. S. Okhlopkova, and T. N. Charakhchyan, Geomagn. Aeron. 19, 431 (1979).ADSGoogle Scholar
  4. 4.
    B. Mitra and S. R. Ganguly, in Proc. 20th Int. Cosmic Ray Conf., Moscow, Russia, 1987, Vol. 3, p.341.Google Scholar
  5. 5.
    V. P. Okhlopkov, in Proc. 22nd Int. Cosmic Ray Conf., Dublin, Ireland, 1991, Vol. 3, p.431.Google Scholar
  6. 6.
    V. P. Okhlopkov, Sol. Syst. Res. 34, 139 (2000).ADSGoogle Scholar
  7. 7.
    V. P. Okhlopkov, Bull. Russ. Acad. Sci.: Phys. 81, 187 (2017).CrossRefGoogle Scholar
  8. 8.
    K. Mursula and J. H. Vilppola, Sol. Phys. 221, 337 (2004).ADSCrossRefGoogle Scholar
  9. 9.
    K. Kudela, J. Rybak, A. Antalova, et al., Sol. Phys. 205, 165 (2002). doi 10.1023/A:1013869322693ADSCrossRefGoogle Scholar
  10. 10.
    C. Kato, K. Munakata, S. Yasue, et al., J. Geophys. Res.: Space Phys. 108, 1367 (2003). doi 10.1029/2003JA009897ADSCrossRefGoogle Scholar
  11. 11.
    J. Rybak, A. Antalova, and M. Storini, Space Sci. Rev. 97, 359 (2001). doi 10.1023/A:1011805923567ADSCrossRefGoogle Scholar
  12. 12.
    M. Laurenza, A. Vecchio, M. Storini, and V. Carbone, Astrophys. J. 749, 167 (2012).ADSCrossRefGoogle Scholar
  13. 13.
    G. Bazilevskaya, A.-M. Broomhall, Y. Elsworth, and V. M. Nakariakov, Space Sci. Rev. 186, 359 (2014). doi 10.1007/s11214-014-0068-0ADSCrossRefGoogle Scholar
  14. 14.
    G. A. Bazilevskaya, M. S. Kalinin, M. B. Krainev, V. S. Makhmutov, A. K. Svirzhevskaya, N. S. Svirzhevsky, and Y. I. Stozhkov, Cosmic Res. 54, 171 (2016).ADSCrossRefGoogle Scholar
  15. 15.
    E. E. Benevolenskaya, Astrophys. J. Lett. 509, 49 (1998). doi 10.1086/311755ADSCrossRefGoogle Scholar
  16. 16.
    V. A. Kotov, M. L. Demidov, V. I. Khaneichuk, V. M. Grigor’ev, and T. T. Tsap, Izv. Krym. Astrofiz. Obs. 94, 118 (1998).Google Scholar
  17. 17.
    Y. I. Stozhkov, N. S. Svirzhevsky, G. A. Bazilevskaya, et al., Preprint No. 14 (Lebedev Physical Inst., Moscow, 2007).Google Scholar
  18. 18.
  19. 19.
  20. 20.
  21. 21.
  22. 22.
  23. 23.
    V. P. Okhlopkov, in Cosmic-Ray Variations and Space Research (Nauka, Moscow, 1986), p.250.Google Scholar
  24. 24.
    V. P. Okhlopkov, Moscow Univ. Phys. Bull. 66, 99 (2011). doi 10.3103/S0027134911010188ADSCrossRefGoogle Scholar

Copyright information

© Allerton Press, Inc. 2018

Authors and Affiliations

  1. 1.Skobeltsyn Institute of Nuclear PhysicsMoscow State UniversityMoscowRussia

Personalised recommendations