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The Schumann resonances (SR) are a set of spectral peaks in the extremely low frequency portion of the Earth's electromagnetic field spectrum. They are global electromagnetic resonances generated and excited by lightning discharges in the cavity formed by the Earth's surface and the ionosphere.
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schumann lightning resonance resonances ionosphere global activity electromagnetic cavity variations earth source day-night observations et al records diurnal waveguide field
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Schumann resonances | measured by | Today Schumann | 0.60 | section |
| Schumann resonances | measured by | The | 0.60 | section |
| Schumann resonances | measured by | Schumann | 0.60 | section |
| Schumann resonances | measured by | Hz | 0.60 | section |
| Schumann resonances | measured by | The Schumann | 0.60 | section |
| Schumann resonances | measured by | V/m | 0.60 | section |
| Schumann resonances | measured by | Similarly | 0.60 | section |
| Schumann resonances | measured by | Earth's | 0.60 | section |
| Schumann resonances | measured by | Specialized | 0.60 | section |
| Schumann resonances | measured by | Ogawa | 0.60 | section |
| Schumann resonances | related to Description | The | 0.60 | section |
| Schumann resonances | related to Description | Winfried Otto Schumann | 0.60 | section |
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