Re: [DX] Auringon aktiivisuudesta...

...mielenkiintoinen linkki tännekin 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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