The phases of quasi-biennial variations (QBVs) in cosmic-ray fluxes and solar-activity and interplanetary-medium parameters are investigated. A spectral analysis of QBVs of listed data was carried out. For the data used, the spectral components with a maximum amplitude (the sinusoidal component with a period of about 1.7 years (about 20.5 months)) are identified. A comparison of phases of QBVs with the phases of these sinusoids in those time intervals, where the QBVs were reliably identified unambiguously, is performed. It is shown that, according to all data, the phases of quasi-biennial variations persisted for many decades with minor deviations. This testifies to the longitudinal stability of the regions on the Sun, which are responsible for a quasi-biennial variation.
Analysis of Phases of Quasi-Biennial Variations of Cosmic-Ray Fluxes and Solar-Activity and Interplanetary-Medium Parameters
Cosmic Res
Cosmic Research ; 60 , 5 ; 340-346
2022-10-01
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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