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Secular cycles in reconstructed sunspot number series

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Abstract

The characteristics of secular cycles are studied based on the reconstructed sunspot number series. It is established that the length of the observed cycles ranges widely from 50 to 160 years. Preferred values for the length of cycles, around 60, 90, and possibly 120 and 150 years, are selected. The length of ascending and descending branches is somewhat different. The steepness of the branches is measured by the slope of the tangent to respective branches and has the most probable values of ±0.5. It ranges from 0 to 2.5 for the ascending branch and from 0 to −2 for the descending branch and apparently depends on solar activity.

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References

  • Chistyakov, V.F., Solnechnye tsikly i kolebaniya klimata (Solar Cycles and Climate Variability), Vladivostok: Dal’nauka, 1997.

    Google Scholar 

  • Kramynin, A.P. and Mordvinov, A.V., Modulation of amplitude of secular cycles of solar activity, Izbrannye problemy astronomii: materialy nauchno-prakticheskoi konferentsii “Nebo i Zemlia” (Selected Problems of Astronomy: Proc. Research-to-Practice Conference “Sky and Earth”), Irkutsk, 2011.

    Google Scholar 

  • Kramynin, A.P. and Mordvinov, A.V., Solar activity secular cycles, Geomagn. Aeron. (Engl. Transl.), 2013, vol. 53, no. 8, pp. 949–952.

    Article  Google Scholar 

  • Mordvinov, A.V. and Kramynin, A.P., Long-term changes in sunspots activity, occurrence of grand minima, and their future tendencies, Sol. Phys., 2010, vol. 264, pp. 269–278.

    Article  Google Scholar 

  • Nagovitsyn, Yu.A., Ivanov, V.G., Miletsky, E.V. and Volobuev, D.M., Esai database and some properties of solar activity in the past, Sol. Phys., 2004, vol. 224, pp. 103–112.

    Article  Google Scholar 

  • Nagovitsyn, Yu.A., Solar activity during the last two millennia: Solar patrol in ancient and medieval china, Geomagn. Aeron. (Engl. Transl.), 2001, vol. 41, no. 5, pp. 680–688.

    Google Scholar 

  • Rubashev, B.M., Problemy solnechnoi aktivnosti (Problems of Solar Activity), Moscow: Nauka, 1964.

    Google Scholar 

  • Solanki, S.K., Usoskin, I.G., Kromer, B., Schussler, M., and Beer, J., Unusual activity of the sun during recent decades compared to the previous 11,000 years, Nature, 2004, vol. 431, no. 7012, pp. 1084–1087.

    Article  Google Scholar 

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Authors and Affiliations

  1. Ussuri Astrophysical Observatory, Far Eastern Branch of the Russian Academy of Sciences, Ussuriysk, Russia

    A. P. Kramynin

  2. Institute of Solar-Terrestrial Physics, Siberian Branch of the Russian Academy of Sciences, Irkutsk, Russia

    A. V. Mordvinov

Authors
  1. A. P. Kramynin
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  2. A. V. Mordvinov
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Correspondence to A. P. Kramynin.

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Kramynin, A.P., Mordvinov, A.V. Secular cycles in reconstructed sunspot number series. Geomagn. Aeron. 54, 1006–1009 (2014). https://doi.org/10.1134/S0016793214080106

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  • DOI: https://doi.org/10.1134/S0016793214080106

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