@Article{Kane:1999:PrSuMa,
               author = "Kane, Rajaram Purushottam",
                title = "Prediction of the sunspot maximum of solar cycle 23 by 
                         extrapolation of spectral components",
              journal = "Solar Physics",
                 year = "1999",
               volume = "189",
               number = "1",
                pages = "217--224",
             keywords = "GEOF{\'{\I}}SICA ESPACIAL, ciclos solar, manchas solares, 
                         m{\'e}todo de entropia m{\'a}xima, solar cycles, sunspots, 
                         maximum entropy method (MEM).",
             abstract = "A simple method MEM-MRA, where spectral peaks are located by MEM 
                         (Maximum Entropy Method) and about a dozen most prominent ones are 
                         used in MRA (Multiple Regression Analysis) to estimate their 
                         amplitudes and phases, was applied to the sunspot number (Rz) 
                         series of 1748-1996. Spectral characteristics were different in 
                         the successive 3 intervals of 83 years each. Hence, for 
                         predictions, only data for the recent 83 years were considered 
                         relevant. From the spectra for 1914-1996, the most significant 
                         peaks at 5.3, 8.3, 10.5, 12.2, 47 years were used for 
                         reconstruction. The match between observed and reconstructed 
                         values was good (correlation +0.90). When extrapolated, the 
                         reconstructed values indicate a sunspot number maximum for the 
                         present solar cycle 23 as 140 +/- 9, to occur in year 2000 and for 
                         the next solar cycle 24 as 105 +/- 9, to occur in year 
                         2010-2011.",
                 issn = "0038-0938 and 1573-093X",
                label = "9646",
             language = "en",
           targetfile = "Prediction of the sunspot maximum of solar cycle 23 by 
                         extrapolation of spectral components.pdf",
        urlaccessdate = "05 maio 2024"
}