[Propagation+Space Weather] Did you know? Space Weather/Propagation Educational Tidbit - 2015 Mar 30 14:00 UTC

[nw7us@sunspotwatch.com]

This e-mail posting is from the Radio Propagation Reflector that you're 
currently subscribed to.  Refer to the end of this e-mail for directions on how 
to change your subscription options, or to unsubscribe.
_______________________-start-_________________

Did you know? Here's a space weather and radio propagation educational tidbit -- from http://nw7us.us/swc -- at 14:00 UTC on 2015-03-30:

Our magnetosphere deflects much of the solar wind, around the Earth, generating energy. When this stored solar wind energy is released by the magnetosphere, a 'geomagnetic substorm' is triggered.

A geomagnetic storm is made up of many substorms, and the geomagnetic storm can have serious impact on the ionosphere.

Geomagnetic storms are almost always associated with a decreases in F-region electron density. Geomagnetic storms can result in a lowering of the maximum usable frequency of a radio path between two points on the Earth. In short, a geomagnetic storm can cause difficulties in communicating over long distances on shortwave radio frequencies.

Geomagnetic storms are rated by NOAA on a scale, G1 to G5, G5 being severe.

Don't forget to visit our live space weather and radio propagation web site, at: http://SunSpotWatch.com

Get the space weather and radio propagation self-study course, today. Visit http://nw7us.us/swc for the latest sale and for more information! Are you interested in the Sun-Earth connection? How about space weather? Perhaps you are also interested in radio propagation. Check out the special sale we have for you, on this self-study course package at

--> http://nw7us.us/swc <--

See the live aurora mapping is at http://aurora.sunspotwatch.com

If you are on Twitter, please follow these two users:

+ https://Twitter.com/NW7US

+ https://Twitter.com/hfradiospacewx

_______________________________________________
Propagation mailing list
Propagation@contesting.com

To change your subscription settings, or to unsubscribe, visit:
http://lists.contesting.com/mailman/listinfo/propagation