Solar Physics

, Volume 227, Issue 1, pp 155–175 | Cite as

Short-Term Periodicities in Solar Indices

Article

Abstract

The purpose of the present communication is to identify the short-term (few tens of months) periodicities of several solar indices (sunspot number, Caii area and K index, Lyman α, 2800 MHz radio emission, coronal green-line index, solar magnetic field). The procedure used was: from the 3-month running means (3m) the 37-month running means (37m) were subtracted, and the factor (3m − 37m) was examined for several parameters. For solar indices, considerable fluctuations were seen during the ± 4 years around sunspot maxima of cycles 18−23, and virtually no fluctuations were seen in the ± 2 years around sunspot minima. The spacings between successive peaks were irregular but common for various solar indices. Assuming that there are stationary periodicities, a spectral analysis was carried out which indicated periodicities of months: 5.1–5.7, 6.2–7.0, 7.6–7.9, 8.9–9.6, 10.4–12.0, 12.8–13.4, 14.5–17.5, 22–25, 28 (QBO), 31–36 (QBO), 41–47 (QTO). The periodicities of 1.3 year (15.6 months) and 1.7 years (20.4 months) often mentioned in the literature were seen neither often nor prominently. Other periodicities occurred more often and more prominently. For the open magnetic flux estimated by Wang, Lean, and Sheeley (2000) and Wang and Sheeley (2002), it was noticed that the variations were radically different at different solar latitudes. The open flux for < 45 solar latitudes had variations very similar (parallel) to the sunspot cycle, while open flux for > 45 solar latitudes had variations anti-parallel to the sunspot cycle. The open fluxes, interplanetary magnetic field and cosmic rays, all showed periodicities similar to those of solar indices. Many peaks (but not all) matched, indicating that the open flux for < 45 solar latitudes was at least partially an adequate carrier of the solar characteristics to the interplanetary space and thence for galactic cosmic ray modulation.

Keywords

Interplanetary Magnetic Field Sunspot Number Sunspot Cycle Solar Magnetic Field Open Flux 

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References

  1. Ataç, T. and Özgüç, A.: 1998, Solar Phys. 180, 397.CrossRefGoogle Scholar
  2. Badalyan, O. G., Obridko, V. N., Rybak, J., and Sýkora, J.: 2003, N—S asymmetry of solar activity and quasi-biennial oscillations, in Proceedings of ISCS 2003 Symposium, Solar Variability as an Input to the Earth’s Environment, Tatranská Lomnica, Slovakia, ESA SP-535, pp. 63–66.Google Scholar
  3. Bevington, P. R.: 1969, Data Reduction and Error Analysis for the Physical Sciences, McGraw-Hill, New York, pp. 164–176.Google Scholar
  4. Blackman, R. B. and Tukey, J. W.: 1958, The Measurement of Power Spectra, Dover, New York, p.~190.Google Scholar
  5. Bumba, V.: 2003, Cyclic changes of the solar global and local magnetic field patterns, in Proceedings of ISCS 2003 Symposium, Solar Variability as an Input to the Earth’s Environment, Tatranská Lomnica, Slovakia, ESA SP-535, pp. 23–28.Google Scholar
  6. Burg, J. P.: 1967, Maximum Entropy Spectral Analysis, Paper presented at the 37th Meeting. Society of Exploration, Oklahoma City.Google Scholar
  7. Dorman, L. I.: 2001, Adv. Space Res. 27(3), 601.CrossRefGoogle Scholar
  8. Gleissberg, W.: 1965, J. British Astron. Assoc. 75, 227.Google Scholar
  9. Gnevyshev, M. N.: 1967, Solar Phys. 1, 109.CrossRefGoogle Scholar
  10. Gnevyshev, M. N.: 1977, Solar Phys. 51, 175.CrossRefGoogle Scholar
  11. Hale, G. E.: 1924, Nature 113, 105.Google Scholar
  12. Kane, R. P.: 1977, J. Geomag. Geoelect. 29, 471.Google Scholar
  13. Kane, R. P.: 1979, J. Geophys. Res. 84, 965.Google Scholar
  14. Kane, R. P.: 2003a, J. Atmos. Solar-Terr. Phys. 65, 979.CrossRefGoogle Scholar
  15. Kane, R. P.: 2003b, J. Geophys. Res. 108(A1), 1046; doi:10.1029/2002JA009542.Google Scholar
  16. Kane, R. P. and Trivedi, N. B.: 1982, Geophysics 47, 1731.CrossRefGoogle Scholar
  17. Kane, R. P. and Trivedi, N. B.: 1986, Proc. Ind. Acad. Sci. (Earth Planetary Sci.) 95, 201.Google Scholar
  18. Kato, C., Munakata, K., Yasue, S., Inoue, K., and McDonald, F. B.: 2003, J. Geophys. Res. 108(A10), 1367, doi:10.1029/2003JA009897.Google Scholar
  19. Kirova, N. A. and Solanki, S. K.: 2002, Astron. Astrophys. 394, 701.CrossRefGoogle Scholar
  20. Knaack, R. and Stenflo, J. O.: 2004, in A. K. Dupree and A. O. Benz (eds.), Large-Scale Solar Magnetic Fields: Temporal Variations, Stars and Suns: Activity, Evolution and Planets, IAU Symposium, 219, 552–556.Google Scholar
  21. Kononovich, E. V. and Shefov, N. N.: 2002, Quasi-biennial variations of the solar activity during the 11-year cycle and their display in the variations of the temperature of the middle atmosphere, “Physics of Auroral Phenomena”, in Proceedings of XXV Annual Seminar, Apatity, Kola Science Center, 143, Polar Geophysical Institute, Russian Academy of Science, pp. 143–146.Google Scholar
  22. Kudela, K., Rybak, J., Antalová, A., and Storini, M.: 2002, Solar Phys. 205, 165.CrossRefGoogle Scholar
  23. Obridko, V. N. and Shelting, B. D.: 2001, Astron. Rep. 45, 1012.CrossRefGoogle Scholar
  24. Otmianowska-Mazur, K., Rudiger, G., Elstner, D., and Arlt, R.: 1997, Geophys. Astrophys. Fluid Dyn. 86, 229.Google Scholar
  25. Pap, J., Tobiska, W. K., and Bouwer, S. D.: 1990, Solar Phys. 129, 165.CrossRefGoogle Scholar
  26. Parker, E. N.: 1984, Astrophys. J. 281, 839.CrossRefGoogle Scholar
  27. Richardson, I. G., Cliver, E. W., and Cane, H. V.: 2000, J. Geophys. Res. 105, 18203.Google Scholar
  28. Rybansky, M., Rusin, V., and Minarovjech, M.: 1998, Solar Phys. 177, 305.CrossRefGoogle Scholar
  29. Ulrych, T. J. and Bishop, T. N.: 1975, Rev. Geophys. 13, 183.Google Scholar
  30. Valdés-Galicia, J. F., Pérez-Enríquez, R., and Otaola, J. A.: 1996, Solar Phys. 167, 409.CrossRefGoogle Scholar
  31. Valdés-Galicia, J. F., Lara, A., and Mendoza, B.: 2003, Proc. 28th Int. Cosmic Ray Conf. 70, 4052.Google Scholar
  32. Wang, Y.-M. and Sheeley, N. R.: 2002, J. Geophys. Res. 107(A10), 1302; doi:10.1029/2001JA000500, SSH 10, 1–15.Google Scholar
  33. Wang, Y.-M., and Sheeley, N. R. Jr.: 2003, Astrophys. J. 590, 1111.Google Scholar
  34. Wang, Y.-M., Lean, J., and Sheeley, N. R. Jr.: 2000, Geophys. Res. Lett. 27, 505.Google Scholar
  35. Woods, T. N., Tobiska, W. K., Rottman, G. J., and Worden, J. R.: 2000, J. Geophys. Res. 105, 27195.Google Scholar

Copyright information

© Springer Science + Business Media, Inc. 2005

Authors and Affiliations

  1. 1.Instituto Nacional de Pesquisas Espaciais (INPE)São PauloBrazil

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