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Search for relationship between duration of the extended solar cycles and amplitude of sunspot cycle
Author(s) -
Tlatov A.G.
Publication year - 2007
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.200710886
Subject(s) - sunspot , dynamo , amplitude , physics , solar cycle , solar dynamo , solar minimum , atmospheric sciences , astrophysics , solar maximum , solar cycle 24 , climatology , dynamo theory , magnetic field , geology , optics , quantum mechanics , solar wind
Duration of the extended solar cycles is taken into the consideration. The beginning of cycles is counted from the moment of polarity reversal of large‐scale magnetic field in high latitudes, occurring in the sunspot cycle n till the minimum of the cycle n + 2. The connection between cycle duration and its amplitude is established. Duration of the “latent” period of evolution of extended cycle between reversals and a minimum of the current sunspot cycle is entered. It is shown, that the latent period of cycles evolution is connected with the next sunspot cycle amplitude and can be used for the prognosis of a level and time of a sunspot maximum. The 24th activity cycle prognosis is made. The found dependences correspond to transport dynamo model of generation of solar cyclicity, it is possible with various speed of meridional circulation. Long‐term behavior of extended cycle's lengths and connection with change of a climate of the Earth is considered. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)