A.Loskutov, I.A.Istomin, K.M.Kuzanyan and O.L.Kotlyarov
Physics Faculty, Moscow State University, Moscow 119899 Russia
To study and forecast the solar activity data a quite perspective method of singular spectrum analysis (SSA) is proposed. As known, data of the solar activity are usually presented via the Wolf numbers associated with the ective amount of the sunspots. The advantages and disadvantages of SSA are described by its application to the series of the Wolf numbers. It is shown that the SSA method provides a suciently high reliability in the description of the 11-year solar cycle. Moreover, this method is appro-priate for revealing more long cycles and forecasting the further solar activity during one and a half of 11-year cycle.