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11 Year Cycle in Hot Summers by Joseph S. D’Aleo, CCM
Tuesday, August 31st 2010, 6:56 AM EDT
Co2sceptic (Site Admin)
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We have seen hot summers in 1933, 1944, 1955, 1966, 1977, 1988, 1999, 2010. Notice a pattern? The years are 11 years apart.

This 11 year cycle may be a coincidence but if so a 1 in 256 chance one. In some years the heat was concentrated in one month (1966 it was July), in others it was throughout.

What else has an 11 year cycle? - the sun of course. The solar cycles average 11 years. When new solar cycles begin the new spots are in higher solar latitudes and gradually move equatorward. During transitions you typically have old cycle spots near the equator and new cycle spots at higher latitudes.

The 11 years above have been during these transitions. A coincidence? We’ll leave it to our solar expert readers to speculate whether this is solar driven and possible mechanisms. Other common elements in some of the years include an El Nino winter giving way to a La Nina summer and strong rebound from a very negative winter negative Arctic Oscillation (AO) pattern.

Click source to download PDF and read FULL report from Joseph S. D’Aleo
Source Link: icecap.us
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