Solar Physics

, Volume 224, Issue 1–2, pp 103–112 | Cite as

ESAI database and some properties of solar activity in the past

  • Yu. A. NagovitsynEmail author
  • V. G. Ivanov
  • E. V. Miletsky
  • D. M. Volobuev


In this work a new information resource located at and hereinafter referred to as ESAI (“Extended time series of Solar Activity Indices”) is presented. ESAI includes observational, synthetic and simulated sets to study solar magnetic field variations and their influence on the Earth. ESAI extends the ordinary lengths of some traditional indices, parameterizing time variations of physically different characteristics of solar activity. In particular, long-term sets of the following indices are presented: sunspot areas, the Wolf numbers, polar faculae numbers, sunspot mean latitudes and north-south asymmetry of hemispheres for different components of activity. Some methods for making correct conclusions from incomplete data and some criteria to estimate the reliability of the obtained information are discussed.


Solar Activity Activity Index Incomplete Data Information Resource Field Variation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. Carbonell, M., Oliver, R., and Ballester, J. L.: 1993, Astron. Astrophys. 274, 497.ADSGoogle Scholar
  2. Grossman, A. and Morlet, J.: 1984, SIAM J. Math. 15, 723.CrossRefGoogle Scholar
  3. Gnevysheva, R. S.: 1994, Catalog of Solar Activity. 1949–1989, Central Astronomical Observatory at Pulkovo, Leningrad, Russia.Google Scholar
  4. De la Rue, W., Stewart, B., and Loevy, B.: 1870, Phil. Trans. 160, 389.Google Scholar
  5. Hathaway, D. H., Wilson, R. M., and Reichmann E. J.: 2002, Solar Phys. 211, 357.CrossRefADSGoogle Scholar
  6. Křivský, L.: 1984, Solar Phys. 93, 189.Google Scholar
  7. Makarov, V. I. and Makarova, V. V.: 1996, Solar Phys. 163, 267.CrossRefADSGoogle Scholar
  8. Mann, M. E., and Bradley, R. S.: 1999, Geophys. Res. Lett. 26, 759.CrossRefADSGoogle Scholar
  9. Nagovitsyn, Yu. A.: 1988, “Solnechnye dannye”. Bull. 8, 88.ADSGoogle Scholar
  10. Nagovitsyn, Yu. A.: 1997a, “Solnechnye dannye. 1995–1996” Bull. 38.Google Scholar
  11. Nagovitsyn, Yu. A.: 1997b, Astron. Lett. 23, 742.ADSGoogle Scholar
  12. Nagovitsyn, Yu. A.: 2001, Geomagn. Aeron. 41, 711.Google Scholar
  13. Nagovitsyn, Yu. A., Ivanov, V. G., Miletsky, E. V., and Volobuev D. M.: 2003, in Proceedings of the International Conference-Workshop on “Cosmogenic climate forcing factors during the last millennium”, Kaunas, Lithuania, p. 41.Google Scholar
  14. Ribes, J. C. and Nesme-Ribes: 1993, Astron. Astrophys. 276, 549.ADSGoogle Scholar
  15. Sheeley, N. R., Jr: 1991, Astrophys. J. 374, 386.CrossRefADSGoogle Scholar
  16. Solanki, S. K., Krivova, N. A., Schüssler, M., and Fligge, M.: 2002, Astron. Astrophys. 396, 1029.CrossRefADSGoogle Scholar
  17. Stuiver, M., Reimer, P. J., and Braziunas, T. F.: 1998, Radiocarbon 40, 1127.Google Scholar
  18. Takens, F.: 1981, Lect. Notes Math. 898, 366.zbMATHMathSciNetCrossRefGoogle Scholar
  19. Usoskin, I. G. and Mursula, K.: 2003, Solar Phys. 218, 319.CrossRefADSGoogle Scholar
  20. Usoskin, I. G., Mursula, K., and Kovaltsov, G. A.: 2001, Geophys. Res. Lett. 106, 16039.Google Scholar
  21. Vaquero, J. M., Gallego, M. C., and Sanchez-Bajo, F.: 2004, Solar Phys. 221, 179.CrossRefADSGoogle Scholar
  22. Volobuev, D. M.: 2004, Solar Phys., this issue, 387.Google Scholar
  23. Waldmeier, M.: 1935, Astron. Mitt. Zürich 14, 105.Google Scholar
  24. Wittman, A. D. and Xu, Z. T.: 1987, Astron. Astrophys. Suppl. Ser. 70, 83.ADSGoogle Scholar

Copyright information

© Springer Science + Business Media, Inc. 2004

Authors and Affiliations

  • Yu. A. Nagovitsyn
    • 1
    Email author
  • V. G. Ivanov
    • 1
  • E. V. Miletsky
    • 1
  • D. M. Volobuev
    • 1
  1. 1.Central Astronomical Observatory of Russian Academy of Science at PulkovoSaint-PetersburgRussia

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