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Geomagnetism and Aeronomy

, Volume 58, Issue 6, pp 809–816 | Cite as

Size Distribution of Forbush Effects

  • A. A. MelkumyanEmail author
  • A. V. BelovEmail author
  • M. A. Abunina
  • A. A. Abunin
  • E. A. Eroshenko
  • V. A. Oleneva
  • V. G. Yanke
Article
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Abstract

The distribution of Forbush effect magnitude for cosmic rays with a rigidity of 10 GV observed in 1957–2016 is studied based on a large amount of experimental data from the IZMIRAN database of Forbush effects and interplanetary disturbances. It is demonstrated that the distribution for sufficiently strong Forbush effects follows a power law with an index close those determined earlier for coronal mass ejections. The obtained distributions are evidence that almost all Forbush effects with magnitudes exceeding 1.4% were included into the database. The majority of these effects are associated with interplanetary coronal mass ejections.

Notes

ACKNOWLEDGMENTS

The authors wish to thank their colleagues involved in operation of the worldwide network of CR stations, which ensure continuous neutron monitoring (http://cr0.izmiran.ru/ThankYou), and the NMDB collaboration (www.nmdb.eu; EU FP7 project, contract no. 213007) for providing the needed data.

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • A. A. Melkumyan
    • 1
    Email author
  • A. V. Belov
    • 2
    Email author
  • M. A. Abunina
    • 2
  • A. A. Abunin
    • 2
  • E. A. Eroshenko
    • 2
  • V. A. Oleneva
    • 2
  • V. G. Yanke
    • 2
  1. 1.Gubkin Russian State University of Oil and GasMoscowRussia
  2. 2.Pushkov Institute of Terrestrial Magnetism, Ionosphere, and Radio Wave Propagation (IZMIRAN), Russian Academy of SciencesMoscowTroitskRussia

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