Skip to main content
SpringerLink
Log in

Evaluation of the short-term periodicities in the flare index between the years 1966–2002

  • Published:
Solar Physics Aims and scope Submit manuscript

Abstract

The short-term periodicities of the flare index are investigated in detail using Fourier and wavelet transforms for the full disc and for the northern and the southern hemispheres of the Sun separately over the epoch of almost 4 cycles (1966–2002). The most pronounced power peaks were found by the Fourier transform to be present at 25.6, 27.0, 30.2, and 33.8 days. The wavelet transform results show that the occurrence of periodicities of flare index power is highly intermittent in time. A comparison of the results of the Fourier transform and the time-period wavelet transform of the flare index time series has clarified the importance of different periodicities, whether they are or are not the harmonics of the basic ones, as well as the temporal location of their occurrence. We found that the modulation of the flare index due to the 27-day solar rotation is more pronounced during the declining portion of solar cycle than during the rising portion.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Bai, T.: 1992, Astrophys. J. 397, 584.

    Article  Google Scholar 

  • Bai, T.: 2003a, Astrophys. J. 585, 1114.

    Article  Google Scholar 

  • Bai, T.: 2003b, Astrophys. J. 591, 406.

    Article  Google Scholar 

  • Bai, T. and Cliver, E. W.: 1990, Astrophys. J. 363, 299.

    Article  Google Scholar 

  • Bai, T. and Sturrock, P. A.: 1987, Nature 327, 601.

    Article  Google Scholar 

  • Bai, T. and Sturrock, P. A.: 1993, Astrophys. J. 409, 476.

    Article  Google Scholar 

  • Ballester, J. L., Oliver, R., and Baudin, F.: 1999, Astrophys. J. 522, L153.

    Article  Google Scholar 

  • Bloomfield, P.: 1976, Fourier Analysis of Time Series: An Introduction, John Wiley and Sons, New York.

    Google Scholar 

  • Bogard, R. S. and Bai, T.: 1985, Astrophys. J. 229, L51.

    Article  Google Scholar 

  • Bouwer, S. D., Pap, J., and Donnelly, R. F.: 1990, in K. H. Schatten and A. Arking (eds.), Climate Impact of Solar Variability, NASA Conf. Proc. 3086, NASA, Greenbelt, MD, p. 125.

    Google Scholar 

  • Caballero, R. and Valdés-Galicia, J. F.: 2001, Adv. Space Res. 27, 583.

    Article  Google Scholar 

  • Daubechies, I.: 1990, IEEE Transactions on Information Theory 36, 961.

    Article  Google Scholar 

  • Delache, P., Laclare, F., and Sadsaoud, H.: 1985, Nature 317, 416.

    Article  Google Scholar 

  • Dennis, B. R.: 1985, Solar Phys. 100, 465.

    Article  Google Scholar 

  • Donnelly, R. F. and Puga, L. C.: 1990, Solar Phys. 130, 369.

    Article  Google Scholar 

  • Dröge, W., Gibbs, K., Grunsfeld, J. M., Meyer, P., and Newport, B. J.: 1990, Astrophys. J. Suppl. 73, 297.

    Article  Google Scholar 

  • Hathaway, D. H.: 1996, Astrophys. J. 460, 1027.

    Article  Google Scholar 

  • Hathaway, D. H., Dibyendu, N., Wilson, M. R., and Reichmann, E. J.: 2003, Astrophys. J. 589, 665.

    Article  Google Scholar 

  • Horne, J. H. and Baliunas, S. L.: 1986, Astrophys. J. 302, 757.

    Article  Google Scholar 

  • Kane, R. P.: 2002, Solar Phys. 207, 17.

    Article  Google Scholar 

  • Kane, R. P., Vats, H. O., and Sawant, H. S.: 2001, Solar Phys. 201, 181.

    Article  Google Scholar 

  • Kleczek, J.: 1952, Publ. Inst. Centr. Astron., No. 22, Prague.

  • Kumar, P. and Faufoula-Georgiou, E.: 1997, Rev. Geophysics 35, 385.

    Article  Google Scholar 

  • Le, G. M. and Wang, J. L.: 2003, Chin. J. Astron. Astrophys. 3, 391.

    Google Scholar 

  • Lean, J. and Brueckner, G. E.: 1989, Astrophys. J. 337, 568.

    Article  Google Scholar 

  • Li, K. J., Wang, J. X., Xiong, S. Y., Liang, H. F., Yun, H. S., and Gu, X. M.: 2002, Astron. Astrophys. 383, 648.

    Article  Google Scholar 

  • Lou, Y., Wang, Y., Fan, Z., Wang, S., and Wang, J. X.: 2003, Monthly Notices Royal Astron. Soc. 345, 809.

    Article  Google Scholar 

  • Mavromichalaki, H. et al.: 2003, J. Atmos. Solar. Terr. Phys. 65, 1021.

    Article  Google Scholar 

  • Oliver, R., Ballester, J. L., and Baudin, F.: 1998, Nature 394, 552.

    Article  Google Scholar 

  • Özgüç, A. and Ataç, T.: 1989, Solar Phys. 123, 357.

    Article  Google Scholar 

  • Özgüç, A. and Ataç, T.: 1994, Solar Phys. 150, 339.

    Google Scholar 

  • Özgüç, A., Ataç, T., and Rybák, J.: 2002a, J. Geophys. Res. 107, 10.1029/ 2001JA009080.

  • Özgüç, A., Ataç, T., and Rybák, J.: 2002b, in A. Wilson (ed.), Solar Variability: from Core to Outer Frontiers ESA SP-506, 709.

  • Özgüç, A., Ataç, T., and Rybák, J.: 2003a, Solar Phys. 214, 375.

    Article  Google Scholar 

  • Özgüç, A., Ataç, T., and Rybák, J.: 2003b, in A. Wilson (ed.), Solar Variability as an Input to the Earth’s Environments, ESA SP-535, 687.

  • Pap, J., Tobiska, W. K., Bouwer, S. D.: 1990, Solar Phys. 129, 165.

    Article  Google Scholar 

  • Rieger, E., Share, G. H., Forrest, D. J., Kanbach, G., Reppin, C., and Chupp, E. L.: 1984, Nature 312, 623.

    Article  Google Scholar 

  • Rossby, C.-G.: 1939, J. Marine Res. 2, 38.

    Google Scholar 

  • Ruzmaikin, A.: 2001, Space Sci. Rev. 95, 43.

    Article  Google Scholar 

  • Rybák, J. and Dorotovic, I.: 2002, Solar Phys. 205, 177.

    Article  Google Scholar 

  • Scargle, J. D.: 1982, Astrophys. J. 263, 835.

    Article  Google Scholar 

  • Schatten, K. H.: 2003, Adv. Space Res. 32, 451.

    Article  Google Scholar 

  • Torrence, C. and Compo, G. P.: 1998, Bul. American Meteor. Soc. 79, 61.

    Article  Google Scholar 

  • Verma, V. K., Joshi, G. C., Uddin, W., and Palival, D. C.: 1991, Astron. Astrophys. 90, 83.

    Google Scholar 

  • Ward, F. and Shapiro, R.: 1962, J. Geophys. Res. 67, 541.

    Google Scholar 

  • Zieba, S., Maslowski, J., Michalec, A., and Kulak, A.: 2001, Astron. Astrophys. 377, 297.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Kandilli Observatory and E.R.I. Boğaziçi University, Çengelköy, Istanbul, Turkey

    Atila Özgüç

  2. Astronomical Institute, Slovak Academy of Sciences, 05960, Tatranská Lomnica, Slovak Republic

    Ján Rybák

  3. Kandilli Observatory and E.R.I. Boğaziçi University, Çengelköy, Istanbul, Turkey

    Tamer Ataç

Authors
  1. Atila Özgüç
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Tamer Ataç
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Ján Rybák
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Özgüç, A., Ataç, T. & Rybák, J. Evaluation of the short-term periodicities in the flare index between the years 1966–2002. Sol Phys 223, 287–304 (2004). https://doi.org/10.1007/s11207-004-7304-9

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11207-004-7304-9

Keywords

Search

Navigation