Separation of Periodic, Chaotic, and Random Components in Solar Activity

Details Separation of Periodic, Chaotic, and Random Components in Solar Activity Separation of Periodic, Chaotic, and Random Components in Solar Activity

Oct 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996soph..168..413w&link_type=abstract

Solar Physics, Volume 168, Issue 2, pp.413-422

Physics

9

Scientific paper

Two new techniques were applied to search for chaotic behavior in solar activity. A mixture of periodic and chaotic components in a time series makes it difficult to find chaotic behavior. The singular spectrum analysis (SSA) method (Broomhead and King, 1986) was used to separate periodic and irregular components in solar activity (e.g., sunspot number and 10.7 cm flux). The nonlinear prediction method (Sugihara and May, 1990) was applied for each component to examine whether it has a chaotic characteristic. The result suggests that are are dominant periodic components and highly irregular (random) components in solar activity.

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