Last August, I also ran the planetary A index value; a measure of geomagnetic activity, so let me refresh this.
Planetary A-Index) are higher than any time since early '05." Let me add that I've taken advantage of my increased free time in the last month to try to make contact with some rather exotic ham radio locations, and I've noticed the effects of these geomagnetic disturbances.
And to quote myself even more:
As I've posted before, this is the weakest solar cycle in 100 years, which means no living solar scientist has seen a cycle this weak, and our records of what the sun was doing back then are more sparse than what's available now. Since no living scientist has seen a cycle this weak, expect all predictions to be even less accurate than usual.My interest in solar activity grew out of the shortwave radio listening hobby I started when I was about 13 years old. That was in the cycle right after the strongest one on record, the peak from the late 50s. Solar activity acts to increase the density of the ionosphere, which raises the frequency at which radio waves are bent back to Earth. Following the highest frequency that will propagate between two points, the Maximum Usable Frequency or MUF, is generally the way to hear (or talk with) the most distant points with the lowest loss of signal. It's only in the last 20 years or so has it seemed that the solar cycle might affect things like our food supply, and life in general.