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Moscow University Physics Bulletin

, Volume 73, Issue 2, pp 223–233 | Cite as

Quasiperiodic Variations of Solar Activity and Cosmic Rays

  • V. P. Okhlopkov
Astronomy, Astrophysics, and Cosmology
  • 13 Downloads

Abstract

Quasiperiodic variations of various manifestations of solar activity, parameters of the interplanetary medium, and the flux of galactic cosmic rays (GCRs) are studied using the data of stratospheric sounding and measurements with neutron monitors. Groups of spectral components with periods of ~2, 1.3, and ~1 year are identified in the range of periods shorter than 5 years. Particular attention is paid to quasi-2-year GCR variations that are induced by similar variations of the mean magnetic field of the Sun and are integral to the processes of solar activity.

Keywords

quasiperiodic variations solar activity galactic cosmic rays interplanetary magnetic field mean magnetic field of the Sun frequency spectrum mathematical selective filter 

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Copyright information

© Allerton Press, Inc. 2018

Authors and Affiliations

  1. 1.Skobeltsyn Institute of Nuclear PhysicsMoscow State UniversityMoscowRussia

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