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Sunspot time series : passive and active intervals


Sunspot time series : passive and active intervals

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dc.contributor.author Zięba, Stanisław pl
dc.contributor.author Nieckarz, Zenon [SAP12015959] pl
dc.date.accessioned 2015-03-11T11:42:53Z
dc.date.available 2015-03-11T11:42:53Z
dc.date.issued 2014 pl
dc.identifier.issn 0038-0938 pl
dc.identifier.uri http://ruj.uj.edu.pl/xmlui/handle/item/3714
dc.language eng pl
dc.rights Dodaję tylko opis bibliograficzny *
dc.rights.uri *
dc.title Sunspot time series : passive and active intervals pl
dc.type JournalArticle pl
dc.description.physical 2705-2726 pl
dc.abstract.en Solar activity slowly and irregularly decreases from the first spotless day (FSD) in the declining phase of the old sunspot cycle and systematically, but also in an irregular way, increases to the new cycle maximum after the last spotless day (LSD). The time interval between the first and the last spotless day can be called the passive interval (PI), while the time interval from the last spotless day to the first one after the new cycle maximum is the related active interval (AI). Minima of solar cycles are inside PIs, while maxima are inside AIs. In this article, we study the properties of passive and active intervals to determine the relation between them. We have found that some properties of PIs, and related AIs, differ significantly between two group of solar cycles; this has allowed us to classify Cycles 8 – 15 as passive cycles, and Cycles 17 – 23 as active ones. We conclude that the solar activity in the PI declining phase (a descending phase of the previous cycle) determines the strength of the approaching maximum in the case of active cycles, while the activity of the PI rising phase (a phase of the ongoing cycle early growth) determines the strength of passive cycles. This can have implications for solar dynamo models. Our approach indicates the important role of solar activity during the declining and the rising phases of the solar-cycle minimum. pl
dc.subject.en spotless days pl
dc.subject.en solar phase tracking pl
dc.subject.en Waldmeier effect pl
dc.subject.en prediction pl
dc.description.volume 289 pl
dc.description.number 7 pl
dc.description.publication 1 pl
dc.identifier.doi 10.1007/s11207-014-0498-6 pl
dc.identifier.eissn 1573-093X pl
dc.title.journal Solar Physics pl
dc.language.container eng pl
dc.affiliation Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego pl
dc.affiliation Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut – Obserwatorium Astronomiczne pl
dc.subtype Article pl
dc.rights.original CC-BY-SA; inne; ostateczna wersja wydawcy; w momencie opublikowania; 0; pl
.pointsMNiSW [2014 A]: 35

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