On 6 Jun 2005 05:25:14 -0700, Edmund Lewis wrote in
roups.com

As in sunspots? I'm familiar with the theories that they affect the
weather, I thought the sunspot cycle was 11 years?

I believe there is what is called the double sunspot cycle - related to a
reversal of the sun's magnetic poles - of about 22-23 years. When some
climate data are analysed that can be quite a strong signal.

linked to the period of
lunar nodes. (Lunar nodes are periods when the combination of the 5
degree difference of the lunar orbit combines with the eccliptic to
produce declinations of 23 1/2 degrees plus or minus 5 degrees.*


So are you saying that the declination of the moon (which I know can be
more than 23 1/2, up to about 29 north and south), combines with the
sunspot cycle to produce hot/cold weather? If so, how? (And what type
of weather do various alignments produce?)

The lunar nodal cycle has a length of 18.6 years and such a cycle length
(real or otherwise) has been detected in some climate data. I don't think
the causal mechanism has been worked out though.


--
Mike 55.13°N 6.69°W Coleraine posted to uk.sci.weather 06/06/2005 12:45:24 UTC