The Sun’s fizzle continues
On June 4 NOAA’s Space Weather Prediction Center posted its monthly update of the ongoing sunspot cycle of the Sun. Now that I am back from Nevada, I’ve had a chance to take a look at it, and have posted the new graph for April below the fold.
Though sunspot activity in May showed a slight increase, it nowhere matched the activity levels predicted by scientists (as indicated by the red line). Though the Sun’s activity has ramped up, and is even today sending two coronal mass ejections directly towards the Earth, the Sun is also continuing to struggle to produce sunspots.
Meanwhile, the solar scientists at the Marshall Space Flight Center have not revised their prediction for the peak of the upcoming solar maximum, despite the weak numbers in May. They presently predict a sunspot number of 60 at maximum, the peak arriving in the spring of 2013. (The Marshall prediction uses a different sunspot numbering system than the graph above, which is why the solar maximum peak prediction for each is different, 60 compared to about 90. However, the actual activity predicted by both is really the same.) This prediction would make this upcoming solar maximum “the smallest sunspot cycle in about 100 years,” as they say on their website.
If the trends shown by the graph above continue, however, it is likely that the peak at maximum will be far weaker than this prediction, making it the weakest in several centuries. Some solar scientists are even predicting that the Sun might follow this weak maximum with the first Grand Minimum in five hundred years, giving us a period of decades where there are no sunspots at all. And the last time that happened, in the 1600s, the Earth experienced the Little Ice Age, a time when there were years with no summers at all, resulting in crop failures and famine.
Maybe global warming might not be such a bad thing after all!
On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.
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With humility, we stand on the shoulders of our ancestors and are here only because they had the intestinal fortitude to carry on. My only hope is that whatever this amazing, beautiful life-giving earth throws at us ( includeing its sun), we can do honor to all those humans that suffered through plagues, ice ages and drudgery of less technological times and quit our whining. As humans, we can figure our way out of anything nature conjures up…it’s in our DNA.
Thanks for this update. I will definitely need this.