Maximal growth rate of the ascending phase of a sunspot cycle for predicting its amplitude

Open Access

Fig. 10.

Prediction performance for cycles 12–24 with the total (blue) and hemispheric (red) sunspot areas. (a) rms errors of predictions, (b) correlation coefficient between the actual cycle amplitudes and predictions. X-axis: Width of smoothing window from 7 to 45 months.

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