Abstract
We use a precursor technique based on the geomagneticaa index during the decline (last 30%) of solar cycle 22 to predict a peak sunspot number of 158 (± 18) for cycle 23, under the assumption that solar minimum occurred in May 1996. This method appears to be as reliable as those that require a year of data surrounding the geomagnetic minimum, which typically follows the smoothed sunspot minimum by about six months.
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Brown, G. M. and Williams, W. R.: 1969, Planetary Space Sci. 17, 455.
Cliver, E. W., Boriakoff, V., and Bounar, K. H.: 1996, J. Geophys. Res. 101, 27091.
Damon, P. E. and Sonett, C. P.: 1991, in C. P. Sonett, M. S. Giampapa, and M. S. Matthews (eds), The Sun in Time, University of Arizona, Tucson, p. 360.
Gonzalez, G. and Schatten, K. H.: 1987, Solar Phys. 114, 189.
Hoeksema, J. T.: 1992, in E. Marsch and R. Schwenn (eds), Solar Wind Seven, Pergamon, New York, p. 191.
Joselyn, J. A., Anderson, J., Coffey, H., Harvey, K., Hathaway, D., Heckman, G., Hildner, E. et al.: 1997, EOS, Trans. American Geophys. Union 78 (20), 205.
Kane, R. P.: 1989, Solar Phys. 122, 175.
Kunches, J. M.: 1993, in J. Hruška et al.(eds), Solar-Terrestrial Predictions, Vol. 2, NOAA, Boulder, CO, p. 198.
Layden, A. C., Fox, P. A., Howard, J. M., Sarajedini, A., Schatten, K. H., and Sofia, S.: 1991, Solar Phys. 132, 1.
Mayaud, P. N.: 1972, J. Geophys. Res. 77, 6870.
McKinnon, J. A.: 1987, Report UAG-85, NOAA, Boulder, CO, p. 5.
Nevanlinna, H. and Kataja, E.: 1993, Geophys. Res. Letters 20, 2703.
Ohl, A. I.: 1966, Soln. Dann. No. 12, 84.
Ohl, A. I. and Ohl, G. I.: 1979, in R. F. Donnelly (ed.), Solar-Terrestrial Predictions Proceedings, Vol. 2, NOAA, Boulder, CO, p. 258.
Schatten, K. H. and Sofia, S.: 1996, Bull. Am. Astron. Soc. 28(4), 1347.
Schatten, K. H., Myers, D. J., and Sofia, S.: 1996, Geophys. Res. Letters 23, 605.
Schatten, K. H., Scherrer, P. H., Svalgaard, L., and Wilcox, J. M.: 1978, Geophys. Res. Letters 5, 411.
Thompson, R. J.: 1993, Solar Phys. 148, 383.
Waldmeier, M.: 1961, The Sunspot Activity in the Years 1610-1960, Swiss Federal Observatory, Zürich.
Wilson, R. M.: 1990, Solar Phys. 125, 143.
Wilson, R. M.: 1992, Solar Phys. 140, 181.
Wilson, R. M., Hathaway, D. H., and Reichmann, E. J.: 1996a, NASA Tech. Paper 3648, NASA Marshall, Huntsville, AL.
Wilson, R. M., Hathaway, D. H., and Reichmann, E. J.: 1996b, NASA Tech. Paper 3654, NASA Marshall, Huntsville, AL.
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Bounar, K.H., Cliver, E.W. & Boriakoff, V. A Prediction of the Peak Sunspot Number for Solar Cycle 23. Solar Physics 176, 211–216 (1997). https://doi.org/10.1023/A:1004902905770
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DOI: https://doi.org/10.1023/A:1004902905770