Solar Update March 2017 – still slumping

Guest essay by David Archibald Our divination of solar parameters is aimed to elucidating two things – the length of Solar Cycle 24 and the amplitude of Solar Cycle 25. Figure 1: F10.7 Flux from 2014 The F10.7 flux was exhibiting high volatility up to the beginning of 2015 after which it entered a disciplined…

Solar Cycle 25 Amplitude Prediction

Guest essay by David Archibald One of the most accurate ways of predicting the amplitude of the next solar cycle is to derive it from the strength of the solar polar fields at solar minimum. And you don’t have to wait for solar minimum. An accurate assessment can be made four years before minimum, which…

Record heat despite a cold sun

By Sebastian Luening, Frank Bosse and Fritz Vahrenholt Introduction On 14th November 2016 Stefan Rahmstorf (“stefan”) of the Potsdam Institute for Climate Impact Research (PIK) published on the climate blog Realclimate an article entitled „Record heat despite a cold sun”. In this article he discusses a temperature prognosis which we first published 2012 in the…