Site Key GCI001 California, USA GCI002 Hofuf, Saudi Arabia GCI003 Lithuania GCI004 Alberta, Canada GCI005 Northland, New Zealand GCI006 Hluhluwe, South Africa The Schumann Resonances Power graph summarizes the information presented in the Spectrogram Calendar and illustrates the dynamic changes occurring in the Schumann Resonances region of the magnetic field. Power is the sum of the power … Continue reading GCMS Magnetometer – Schumann Resonances Power