Anonymous ID: d40891 Jan. 28, 2021, 1:49 p.m. No.12747077   ๐Ÿ—„๏ธ.is ๐Ÿ”—kun   >>7094

>>12746904

>What is it monitoring

Kek!

"The Schumann resonances (SR) are a set of spectrum peaks in the extremely low frequency (ELF) portion of the Earthโ€™s electromagnetic field spectrum. Schumann resonances are global electromagnetic resonances, generated and excited by lightning discharges in the cavity formed by the Earthโ€™s surface and the ionosphere."

Anonymous ID: d40891 Jan. 28, 2021, 1:55 p.m. No.12747134   ๐Ÿ—„๏ธ.is ๐Ÿ”—kun

>>12747094

Don't notable โ€ฆ. it's a continuuous graph from monitoring this part of Earth's EM spectrum

A spectrum being the frequency representation of time-domain measurements of that EM field.

The graph simply shows frequency (y-axis) vs time (x-axis) with the power of the EM-field measured coded in colors.

(don't notable, not worth it โ€“ it's "simple" geophysics and happens all the time)