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Correlation study of six solar activity indices in the cycles 21 - 23тезисы доклада
- Авторы: Bruevich E.A., Yakunina G.V.
- Сборник: Международная конференция "Solar influences on the magnetosphere, ionosphere and atmosphere, Fifth Workshop", Nessebar, Bulgaria, 3-7 June 2013. Тезисы на сайте конфеенции http://ws-sozopol.stil.bas.bg/
- Тезисы
- Год издания: 2013
- Место издания: Nessebar, Bulgaria
- Первая страница: 11
- Последняя страница: 11
- Аннотация: The correlation coefficients of the linear regression of six solar indices versus 10,7 cm radio flux F10,7 were analyzed in solar cycles 21, 22 and 23. We also analyzed the interconnection between these indices and F10,7 with help of the approximation by the polynomials of second order. The indices we`ve studied in this paper are: Wolf numbers –W; 530,3 nm coronal line flux – F530; the total solar irradiance – TSI; Mg II UV – index 280 nm core-to-wing ratio; Flare Index – FI and Counts of flares. In the most cases the regressions of these solar indices versus F10,7 are close to linear except the moments of time near to the minimums and maximums of 11-year activity. For the linear regressions we found that the values of correlation coefficients Kcorr(t) for the indices versus F10,7 and W show the cyclic variations with periods approximately equal to the to half length of 11-year cycle – 5,5 years approximately.
- Добавил в систему: Якунина Галина Валентиновна