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jron | 2 years ago

Scott McIntosh predicted it: https://arxiv.org/abs/2006.15263

"Our method predicts that SC25 could be among the strongest sunspot cycles ever observed, and that it will almost certainly be stronger than present SC24 (sunspot number of 116) and most likely stronger than the previous SC23 (sunspot number of 180). This is in stark contrast to the consensus of the SC25PP, sunspot number maximum between 95 and 130, i.e., similar to that of SC24. Indeed, as can be seen in Fig. 4b, if our prediction for the 2020 terminator time is correct, such a low value would be a severe outlier with respect to the observed behavior of previous sunspot cycles. Such a low value could only be reconciled with the previously observed sunspot cycles if the next terminator event is delayed by more than two years from our predicted value, which would extend the present low activity levels to an extraordinary length. We note also that the relationship developed herein would have correctly predicted the low amplitude of SC24 (from a terminators separation of 12.825 years) following the 2011 terminator—three years after the 2006 NOAA/NASA Solar Cycle Prediction Panel delivered their consensus prediction (Pesnell, 2008). Finally, the arrival of the SC24 terminator will permit higher fidelity on the forecast presented."

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