As a global electromagnetic phenomenon, Schumannresonance is shown to be a sensitive temperature measure of global tropical atmosphere.
舒曼共振是一种全球性的电磁现象，它能敏感地反映整个热带大气的温度变化。
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For thousands of years the SchumannResonance or pulse (heartbeat) of Earth has been 7.83 cycles per second, the military have used this as a very reliable reference.
It means that we can diagnose subtle change of global atmosphere temperature by using Schumannresonance data recorded at any single station with low noise background.