December 9, 2009

It's that Sun thing again...

I posted earlier today about Professor Henrik Svensmark's comments in Copenhagen regarding the Sun driving the Earth's climate. Anthony has some more and some historical data:
Solar geomagnetic activity is at an all time low � what does this mean for climate?
I�ve mentioned this solar data on WUWT several times, it bears repeating again. Yesterday, NOAA�s Space Weather Prediction Center released their latest data and graph of the interplanetary geomagnetic index (Ap) which is a proxy for the activity of the solar dynamo. Here is the data provided by SWPC. Note the graph, which I�ve annotated below.
ap-noaa-dec2009.jpg

At a time when many predicted a ramp up in solar activity, the sun remains in a funk, spotless and quiet. The Ap value, for the second straight month, is �3″. The blue line showing the smoothed value, suggests the trend continues downward. To get an idea of how significant this is in our history, take a look at this data (graph produced by me) from Dr. Leif Svalgaard back to the 1930�s.

The step change in October 2005 is still visible and the value of 3.9 that occurred in April of this year is the lowest for the entire dataset at that time. I�m hoping Dr. Svalgaard will have updated data for us soon.
More at Watts Up With That It just doesn't get any clearer. Those politicians and "scientists" at Copenhagen are going to be looked at as fools at best. It has all been a house of cards and the big gust of wind happened a couple weeks ago... Posted by DaveH at December 9, 2009 8:30 PM
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