SCHUMANN RESONANCE HARMONICS

Schumann resonances are series of atmospheric harmonics, which are primarily caused by lightning discharges from the ionosphere, to the Earth ground

The Spectroscope is the full-color visual representation of the Schumann resonances. It is a composite, which is plotted in full-colour, based upon the infortmation recieved from the reporting dependencies. It is this fun, yet quixotic 'visual aid', is most often used alone, without the necessary reporting dependencies, which ultimately give it the meaning. It is this solitary portion of the SR reports, which just-about-everyone who is using this, calls "The Schumann."
The Schumann resonances (SR) are a set of spectrum peaks in the extremely low frequency (ELF) portion of the Earth's electromagnetic field spectrum. Schumann resonances are global electromagnetic resonances, generated and excited by lightning discharges in the cavity formed by the Earth's surface and the ionosphere.