[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