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Detailed Reference Information
Kane 2002
Kane, R.P. (2002). Prediction of solar activity: Role of long-term variations. Journal of Geophysical Research 107: doi: 10.1029/2001JA000247. issn: 0148-0227.

From the near-zero values during the Maunder Minimum (1645--1715), the maxima Rz(max) of smoothed sunspot numbers reached values of ~140 by cycle 0--1 (~1750) and then had long-term fluctuations (high values for 3--5 cycles, followed by low values for 3--5 cycles, differing by as much as 50 units), on which random fluctuations were superposed. There is some indication of a ~100-year oscillation that might have peaked near cycle 20 at Rz(max) values near ~150. If this oscillation persists, the cycles in the next 50 years or so may have lower and lower R(max), perhaps dropping below 100, and recovering thereafter. The aa(min) values, and to a lesser degree, the Rz(min) values, are also expected to follow the same pattern.

BACKGROUND DATA FILES

Abstract

Keywords
Interplanetary Physics, Solar cycle variations, Solar Physics, Astrophysics, and Astronomy, Solar activity cycle, Solar Physics, Astrophysics, and Astronomy, Solar and stellar variability
Journal
Journal of Geophysical Research
http://www.agu.org/journals/jb/
Publisher
American Geophysical Union
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