[OKDXA] Dalton or Maunder Minimum

[W5GA]

Kim, there you go...getting science in the way again! :-)

73 Doug W5GA

-----Original Message-----
From: okdxa-bounces at mailman.qth.net [mailto:okdxa-bounces at mailman.qth.net]
On Behalf Of Kim Elmore
Sent: Tuesday, April 21, 2009 7:05 PM
To: Discussion of OKDXA
Subject: Re: [OKDXA] Dalton or Maunder Minimum

'Course as a research meteorologist, I can't resist...

There's no established cause and effect for sunspots and global 
temperature. The Dalton minimum occurred during a time of active 
volcanisms and that most certainly *is* associated with rather rapid, 
though temporary, global cooling periods.

Even during the Maunder minimum, there were sunspots and the 11 y 
cycle remained intact. There just weren't very many sunspots. The 
cool period associated with the Maunder minimum has yet to be explained...

73,

Kim Elmore N5OP

At 03:02 PM 4/21/2009, N5PA wrote:
>Guys:
>
>
>
>Just hope that we do not have another Dalton or Maunder Minimum.  The
>Maunder minimum is the name given to a period of extreme solar inactivity
>that occurred between 1645 and 1710.  The Dalton Minimum was a period of
low
>solar activity lasting from about 1790 to 1830.  It is also interesting
that
>during both these periods there was a time of global cooling and a "Mini
Ice
>Age".  I was informed by N5OHL that we had one sunspot appear today.
>
>
>
>73,
>
>Alan, N5PA
>
>
>
>
>
>
>
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