Reader’s question: Historically, does this coincide with solar storms?
Solar storms and a range of other space energy contributors modulate the SR. A gamma ray burst significantly changed the SRs in 2004 Dez 27th, (the day after the Indian Ocean Tsunami.se paper: The effect of a gamma ray flare on Schumann resonances, A. P. Nickolaenko et al ) The SRs have been monitored since the late 1960’s, thus the long-term connections are not known in detail. Today (3-18-2017) the Kp-Index went to level 4 (minor geo-magnetic storm).
“From the very beginning of Schumann resonance studies, it was known that they could be used to monitor global lightning activity”. (Wikipedia).
In the context of Solar Cycles and the next Grand Solar Minimum: low solar magnetic field – more cosmic rays – more atmospheric charge, more lightning. It is not knows what other contributors are needed to either raise the intensity of the SR and or to change the distribution within the spectrum the resonances. As for the current solar minimum (in the 11-year- cycle) we also have a historically low geomagnetic field, thus, relatively minor solar storms can cause atmospheric disturbances.
From “Space Weather: Its Effect on Human Health & Behavior”
“Recent research suggests the solar wind actually modulates lightning intensity here on Earth, and that an, “increase in Galactic Cosmic Ray flux may directly trigger lightning through ‘runaway breakdown’ of electrons, leading to breakdown (Roussel-Dupré et al 2008)” (Scott et al. 2014).11
This is important given that, according to NASA, at any moment “2,000 thunderstorms roll over Earth, producing some 50 flashes of lightning every second. Each lightning burst creates electromagnetic waves that begin to circle around Earth captured between Earth’s surface and a boundary about 60 miles up…”12and lightning is associated with local emission of photons.
The Schumann Resonances (SR) are a set of frequencies ranging from 3 Hz to 60 Hz, increasing in 6.5 Hz intervals, with the ‘fundamental’ frequency of the Schumann Resonance standing at 7.83 Hz. The Schumann Resonances are easily detectable on any planet on which lightning takes place, and so far the SR signals have been detected on Venus, Mars, Titan, Jupiter and Saturn.
In the paper “Schumann Resonance Frequencies Found Within Quantitative Electroencephalographic Activity: Implications for Earth-Brain Interactions,” Dr. Michael Persinger discusses the “bulk velocity of action potentials within the cerebral cortices, the approximate standing wave or resonance for a 60 cm circumference skull would be ~7.5 Hz. This bulk velocity would require ~20 to 25 milliseconds to traverse the cerebral length and is equivalent to about 40 to 45 Hz” (Persinger 2014).13 This 40 to 45 Hz band is the classic frequency associated with ‘consciousness’, as well as other complex biological functions.”