The schumann resonance: a global tropical thermometer

Science. 1992 May 22;256(5060):1184-7. doi: 10.1126/science.256.5060.1184.

Abstract

The Schumann resonance, a global electromagnetic phenomenon, is shown to be a sensitive measure of temperature fluctuations in the tropical atmosphere. The link between Schumann resonance and temperature is lightning flash rate, which increases nonlinearly with temperature in the interaction between deep convection and ice microphysics.