[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[DX] Tässäkö syy vaisuihin minimiajan keleihin?
THE FUTURE OF SOLAR ACTIVITY
Ssome good news and some bad news for those who follow the Suns
activity so as to know when the best time to work DX. It comes from
the folks whose job it is to predict the Suns future. Graham Kemp,
VK4BB, has the details:
NASA Scientists predict that Solar cycle 24 will be the best ever
with solar activity the highest ever experienced but cycle 25 which
should peak around 2022 is expected to be the worst ever for radio
propagation.
The reason for this is a slowing of the Sun`s Great Conveyor Belt, a
massive circulating current of hot plasma inside the Sun.
The belt has two branches, in the north and south which normally move
at about 1 metre per second. This means each belt completes a circuit
in approximately 40 years.
Researches believe that the turning of this Conveyor Belt controls
the sunspot cycle.
Recent measurements indicate that both the northern and southern
branches of the belt have slowed to a crawl. This slowdown will
affect future sunspot cycles, with cycle 25, peaking around the year
2022, predicted to be less than half the strength of Cycle 23.
Cycle 24 however, is predicted is to be one of the strongest sunspot
cycles since the 1960`s.
A full explana ion of the Conveyor Belt can be found on the NASA
website at
http://science.nasa.gov/headlines/y2006/10may_longrange.htm
While 2022 might seem a long way off for some, remember that this is
2006 and so that really bad cycle is only sixteen years away. (WIA
News, Chris Flack via ARNewsline June 2 via John Norfolk, dxldyg, DX
LISTENING DIGEST)
___________________________________________________________________________________
Ennakkotilaa WRTH 2006 nyt:
http://www.amazon.com/exec/obidos/ASIN/0823059367/hardcoredxcom/
-----------------------------------------------------------------
DX mailing list
DX@xxxxxxxxxxxxx
http://arizona.hard-core-dx.com/mailman/listinfo/dx
_______________________________________________
THE INFORMATION IN THIS ARTICLE IS FREE. It may be copied, distributed
and/or modified under the conditions set down in the Design Science License
published by Michael Stutz at http://www.gnu.org/licenses/dsl.html