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Experimental investigations of Schumann resonance frequencies
Journal of Atmospheric and Terrestrial Physics, 1973Abstract The Schumann cavity resonances are excited by thunderstorms in the Earth-ionosphere cavity. There are, however, many cases in which data analyses are difficult because of the world wide nature of the phenomenon. This paper describes the results of observations made by the use of a solenoidal coil antenna.
K. Sao +4 more
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Frequency variations of Schumann resonances
Journal of Geophysical Research, 1970The resonances of the earth-to-ionosphere cavity are analyzed by considering the different propagation characteristics of day and night hemispheres. The azimuthal unsymmetries cause mode splitting, but the amplitudes of these additional split modes appear to be negligible for normal conditions.
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Schumann resonance on Titan: A critical Re-assessment
Icarus, 2020Abstract Extremely Low Frequency (ELF) electric field signals recorded by the Huygens probe have previously been interpreted as indicating a Schumann Resonance (SR) in the ionosphere-ocean cavity. This interpretation required accommodation of a number of anomalous features with respect to the terrestrial SR, namely a lack of observed lightning ...
Lorenz, Ralph, Le Gall, Alice
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MICROSEISMS AT SCHUMANN RESONANCE FREQUENCIES
Инженерная физика, 2019Приводятся результаты обработки сейсмического шума на пяти «тихих» сейсмических станциях. По результатам спектрального анализа установлен эффект: отклонение (повышенте) спектральной плотности мощности сейсмического шума около 8 Гц. Доверительная вероятность выявления этого эффекта Pfinal практически равна 1.
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The Schumann Resonance: A Global Tropical Thermometer
Science, 1992The 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.
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2012
The Schumann resonances (SR) are global electromagnetic resonances excited within the Earth-ionosphere waveguide, primarily by lightning discharges. These resonances occur in the extremely low frequency (ELF) range, with resonant frequencies around 8, 14, 20, 26, . . . Hz.
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The Schumann resonances (SR) are global electromagnetic resonances excited within the Earth-ionosphere waveguide, primarily by lightning discharges. These resonances occur in the extremely low frequency (ELF) range, with resonant frequencies around 8, 14, 20, 26, . . . Hz.
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Search for Martian Schumann Resonances
On Earth, electric discharges in thunderstorms produce ELF waves in the Earth-ionosphere waveguide that circles the globe. These waves give rise to Schumann resonances in the waveguide resonant cavity. These waves are also expected to occur at Venus, produced by strong lightning in the Venus atmosphere and at Mars produced by active dust devils or dustYanan Yu +5 more
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Schumann resonance and global lightning activity
MMET Conference Proceedings. 1998 International Conference on Mathematical Methods in Electromagnetic Theory. MMET 98 (Cat. No.98EX114), 2002Temporal variations of the global lightning activity are deduced from the long-term Schumann resonance (SR) continuous records. The intensities of the horizontal magnetic field component of the first, second, and third SR modes were monitored at the Tottori Observatory (35.5/spl deg/N and 134.33/spl deg/E).
A.P. Nickolaenko, M. Hayakawa, Y. Hobara
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Magnetic elliptical polarization of Schumann resonances
Radio Science, 1987An analysis of the expressions for the magnetic signatures of the transverse magnetic (TM) normal modes of the earth‐ionosphere cavity shows that the side multiplets are elliptically polarized traveling waves. Measurements of the orthogonal, horizontal components of the magnetic field in the extremely low frequency (ELF) range 3–60 Hz performed during ...
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