First Estimate of Solar Cycle 25 Amplitude – may be the smallest in over 300 years

Guest post by David Archibald Predicting the amplitude of Solar Cycle 24 was a big business. Jan Janssens provides the most complete table of Solar Cycle 24 predictions at: http://users.telenet.be/j.janssens/SC24.html…

Solar Cycle 24 Length and Its Consequences

Guest post by David Archibald Solar Cycle 24 is now three years old and predictions of the date of solar maximum have settled upon mid-2013. For example, Jan Janssens has…

Hathaway's November Solar Prediction

By David Archibald Joe D’Aleo asked for my comments on NASA’s James Hathaway’s latest solar prediction, available here: http://solarscience.msfc.nasa.gov/predict.shtml When I read May 2013 for solar cycle maximum, I thought…

Big jumps in September solar activity metrics

NOAA’s Space weather prediction center released their solar cycle progression updates, and it shows one of the largest jumps for all common solar metrics since cycle 24 began. Of course…

Archibald: Solar Based Climate Forecast to 2050

Guest post by David Archibald When I started out in climate science in 2005, the climate people ignored the solar physics community. A casual perusal of the literature though indicated…

Update on solar cycle 24

NOAA’s Space Weather Prediction Center posted an update to their graphs today. They show the largest gains in solar cycle 24 tracking metrics I’ve seen yet. See graphs below:

Sol is finally waking up

Let’s hope he does get out of the wrong side of the bed. The current sunspot count and 10.7 cm radio flux have increased in the latest NOAA SWPC graphs,…