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Geomagnetic activity,sunspot number and its rate of increase |
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| Authors: | G. K. Rangarajan |
| Affiliation: | 1. Indian Institute of Geomagnetism, 400005, Colaba, Bombay |
| Abstract: | Annual meanAn, Aa andAs indices of geomagnetic activity during the minimum of a solar cycle are shown to be good predictors of the magnitude of the succeeding maximum in solar activity and also of the evolution of activity from solar minimum to maximum. |
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