Statistical analysis of 11-year and 80-year solar cycles

Details Statistical analysis of 11-year and 80-year solar cycles Statistical analysis of 11-year and 80-year solar cycles

Oct 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984rpspr....r..68b&link_type=abstract

In its USSR Rept.: Space (JPRS-USP-84-005) p 68-69 (SEE N85-11060 02-12) Transl. into ENGLISH from Astron. Z. (Moscow), v. 61

Astronomy and Astrophysics

Astronomy

Regression Analysis, Solar Cycles, Approximation, Correlation

Scientific paper

The method of linear two-parameter regression analysis was used to process the 11-year and secular (Gleissberg) solar cycles using Wolf numbers. The 11-year cycle is a cosine curve as a rough approximation, since the cycle rises more rapidly than it droops and sometimes has two maxima. The correlation of Wolf number with a cosine curve is rather high. Results of approximation of 11-year solar cycles by generalized analysis were used as the initial material for determination of the secular cycle. Three maxima have been observed, in 1778, 1860 and 1950. Two methods were used to determine the parameters of this cycle. The 80-year cycle was statistically confirmed.

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