...mielenkiintoinen
linkki tÃnnekin jakoon.
73
de JTK
From:
SkywavesDX@xxxxxxxxxxxxxxxxx [mailto:SkywavesDX@xxxxxxxxxxxxxxxxx] On Behalf
Of Chris Trask
Sent: 24. tammikuuta 2013 15:12
To:
SkywavesDX@xxxxxxxxxxxxxxxxx; skywavesdx@xxxxxxxxxxxxxxxxx;
vhfskip@xxxxxxxxxxxxxxx; mwdx@xxxxxxxxxxxxxxx
Subject: Re:
[SkywavesDX] Solar Eruptions
Three years ago I spent about four
months with a spreadsheet, using a formula devised by a NASA contractor that
showed how the magnetic fields of the planets affect the solar flux and sunspot
cycles. I elaborated on what he had published and came up with a chart
that reasonably reconstructed the measured sunspot activity back to the 17th
century, and which showed that this cycle and the next three are going to be
very low:
http://www.home.earthlink.net/~christrask/Solar%20Activity%201600-2100.pdf
Unlike
other predictions from NASA, ARRL, and others, I have not modified this
prediction since I completed the spreadsheet some three years ago. I do update
the chart by adding measured monthly average sun spots counts as they become
available at the beginning of each month from the Royal Observatory of Belgium
(http://sidc.oma.be/)
Chris
Trask
N7ZWY / WDX3HLB
Senior Member IEEE
http://www.home.earthlink.net/~christrask/
.
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