The solar cycle is still slumping

It is looking more and more like a double sunspot peak for solar cycle 24.

Sunspot count is down again:

Latest Sunspot number prediction

 A similar drop occurred in radio flux.

Latest F10.7 cm flux number prediction

The Ap magnetic index remains low, but is up 3 units from last month:

Latest Planetary A-index number prediction

On July 1st, solar scientist David Hathaway has updated his prediction page:

ssn_predict.gif (2208 bytes)

Click on image for larger version.

The current prediction for Sunspot Cycle 24 gives a smoothed sunspot number maximum of about 67 in the Summer of 2013. The smoothed sunspot number has already reached 67 (in February 2012) due to the strong peak in late 2011 so the official maximum will be at least this high. The smoothed sunspot number has been rising again over the last four months. We are currently over four years into Cycle 24. The current predicted and observed size makes this the smallest sunspot cycle since Cycle 14 which had a maximum of 64.2 in February of 1906.
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kim
July 16, 2013 2:00 am

It, erl Happens I’m inclined to Ultraviolet and/or ozone, but cosmic rays are so seductive. Tectonics make me shudder, and strangely, shiver.
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