[NZ4O Spaceweather] Discussion Of Solar Space & Geomagnetic Weather Conditions

[Thomas F Giella NZ4O]

Published on Tuesday October 02, 2012 at 1400 UTC. Valid for the next 24 
hours.


1.) DISCUSSION OF SOLAR, SPACE & GEOMAGNETIC WEATHER CONDITIONS THAT CAN 
IMPACT MF & HF RADIO WAVE PROPAGATION IN A NEGATIVE MANNER-

As of 1400 UTC there are still significant impediments to good radio wave 
propagation on the HF bands as far as solar, space and geomagnetic weather, 
as it will take another day or more for the ionosphere to recover after the 
strong (Kp-7) geomagnetic storm. Also as the excessive number of electrons 
from the strong (Kp-7) geomagnetic storm continue to precipitate down our 
planets magnetic field lines through the mid latitudes and then settling 
into the equatorial ring current, mid and low latitudes will see a reduction 
in the MUF as is occurring at high latitudes.

Also the daily sunspot number needs to be higher than the present 59, as the 
higher the sunspot number (100 & >) (150 & > best) the more ultraviolet 
light available to increase ionization in the F/F2 layer, for more 
consistent east-west radio wave propagation openings on 12 and 10 meters.

On the medium frequency (MF) band there exists the normal absorption of RF 
signals in the D layer due to incoming cosmic rays and hard x-rays. Also the 
background x-ray flux is running in the C range so there is some additional 
absorption of RF signals in the D layer.



73 & GUD DX,
Thomas F. Giella NZ4O
Lakeland, FL, USA
nz4o at tampabay.rr.com

NZ4O Amateur Radio & SWL Autobiography: http://www.nz4o.com
NZ4O MF/HF/6M Radiowave Propagation Forecast: http://www.solarcycle24.org