Parallels among the "music scores" of solar cycles, space weather and Earth's climate

Zoltán Kolláth, Katalin Oláh, Lidia Van Driel-Gesztelyi

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Solar variability and its effects on the physical variability of our (space) environment produces complex signals. In the indicators of solar activity at least four independent cyclic components can be identified, all of them with temporal variations in their timescales. Time-frequency distributions (see Kolláth & Oláh 2009) are perfect tools to disclose the "music scores" in these complex time series. Special features in the time-frequency distributions, like frequency splitting, or modulations on different timescales provide clues, which can reveal similar trends among different indices like sunspot numbers, interplanetary magnetic field strength in the Earth's neighborhood and climate data. On the pseudo-Wigner Distribution (PWD) the frequency splitting of all the three main components (the Gleissberg and Schwabe cycles, and an -5.5 year signal originating from cycle asymmetry, i.e. the Waldmeier effect) can be identified as a "bubble" shaped structure after 1950. The same frequency splitting feature can also be found in the heliospheric magnetic field data and the microwave radio flux.

Original languageEnglish
Title of host publicationComparative Magnetic Minima
Subtitle of host publicationCharacterizing quiet times in the Sun and Stars
EditorsCristina H. Mandrini, David F. Webb
Number of pages4
Publication statusPublished - Oct 1 2011

Publication series

NameProceedings of the International Astronomical Union
ISSN (Print)1743-9213
ISSN (Electronic)1743-9221


  • Sun: activity
  • Sun: magnetic fields
  • methods: data analysis
  • solar-terrestrial relations

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science

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  • Cite this

    Kolláth, Z., Oláh, K., & Van Driel-Gesztelyi, L. (2011). Parallels among the "music scores" of solar cycles, space weather and Earth's climate. In C. H. Mandrini, & D. F. Webb (Eds.), Comparative Magnetic Minima: Characterizing quiet times in the Sun and Stars (S286 ed., pp. 423-426). (Proceedings of the International Astronomical Union; Vol. 7, No. S286).