Planet X Town Hall

MadMax - OFF-THE-GRID, EMPs, etc. => Electrical Gizmos, Gadgets and Tools => Topic started by: Yowbarb on February 19, 2011, 12:47:28 AM

Title: Sudden Ionic Disturbance Monitors
Post by: Yowbarb on February 19, 2011, 12:47:28 AM

http://solar-center.stanford.edu/SID/sidmonitor/

The SID Monitor

Title: Re: Sudden Ionic Disturbance Monitors
Post by: Yowbarb on February 19, 2011, 12:50:34 AM

http://en.wikipedia.org/wiki/Sudden_ionospheric_disturbance

A sudden ionospheric disturbance (SID) is an abnormally high ionization/plasma density in the D region of the ionosphere caused by a solar flare. The SID results in a sudden increase in radio-wave absorption that is most severe in the upper medium frequency (MF) and lower high frequency (HF) ranges (adapted from Federal Standard 1037C and from MIL-STD-188), and as a result often interrupts or interferes with telecommunications systems.