[Phys-L] Re: solar cycle

[Anthony Lapinski <anthony_lapinski@PDS.ORG>]

I got my info from various sources - a video ("Planet Earth") from the
late 1980's, and several current astronomy textbooks. The video discussed
tree rings and other sedimentary deposits on the Earth and how well they
correlated with the solar cycle. That's my "data."

Forum for Physics Educators <PHYS-L@list1.ucc.nau.edu> on Tuesday,
February 15, 2005 at 6:40 PM -0500 wrote:
> Let me argue for the converse:
>
> At 02:06 PM 2/15/2005, you wrote:
> > Sunspots follow a 22-year cycle (return to same polarity), and this cycle
> > matches droughts on Earth.
>
> Droughts have complex causes which do not match well an
>  11 or 22 year solar cycle.
>
> >  As the sunspot numbers increase, oceans become
> > warmer.
>
> Ocean temperature changes are hard to measure and appear
> not to match solar cycles.
>
>
> > But isn't the Sun's surface cooler during these times? How can a
> > cooler solar surface cause the Earth to warm up?
>
> Solar cycles are not well-correlated with Earth temperature.
>
> >  I've never understood
> > this. Does it have to do with the increased solar magnetic activity that
> > heats the corona?
>
>
> You can see that I am offering bald statements with as little
> supporting evidence as your assertions.
> So show me yours, and I'll show you mine.
>
> :-)
>
>
>
> Brian Whatcott    Altus OK    Eureka!