Modern aspects of Schumann resonance studies

Nickolaenko, A. P.

doi:10.1016/s1364-6826(96)00059-4

Cited by 49 publications

(40 citation statements)

References 27 publications

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“…An alternative method is to measure the ELF signal at the intermediate frequency, 10 Hz, i.e., between the first and second modes [Fraser-Smith et al, 1988]. Another approach, following Nickolaenko's [1997] suggestion, is placing the receiver at the North or South poles, which remain approximately equidistant from the main thunderstorm centers during the day. However, completely removing the sourcereceiver distance effect and obtaining pure global thunderstorm activity records from SR data remains an open problem.…”

Section: Rs2s05mentioning

confidence: 99%

Schumann resonances: Interpretation of local diurnal intensity modulations

Pechony

Price

2006

Radio Science

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[1] A technique suggested by Sentman and Fraser (1991) for separating the global and the local contributions to the observed Schumann resonance (SR) field power variations is applied to simulated SR field power calculated in a uniform cavity. The spatial/temporal distribution of lighting strokes included in the computations is based on satellite lightning data. It is shown that the local intensity modulation function calculated with a uniform model is similar to the function obtained by Sentman and Fraser with experimental data. Since the local modulation function computed from a uniform model simulation cannot be induced by ionosphere day-night asymmetry, the local modulation function cannot represent diurnal ionosphere height variation. It is shown that the local modulation function depends primarily on the source-receiver distance geometry and that Sentman and Fraser have developed an efficient technique of removing source-receiver distance effects from SR records.

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Section: Rs2s05mentioning

confidence: 99%

Schumann resonances: Interpretation of local diurnal intensity modulations

Pechony

Price

2006

Radio Science

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“…At a distance of 10 Mm from the source lightning (yellow curve), the electric field shows a minimum intensity at 8 and 20 Hz (n = 1, 3) while a maximum occurs at 14 and 26 Hz (n = 2, 4). Every distance has a specific spectral pattern in both the electric and magnetic fields, a characteristic often used in SR geolocation of intense lightning flashes using a single station [28,29,[36][37][38][39][40].…”

Section: Theoretical Backgroundmentioning

confidence: 99%

“…The most widely used approaches are the models of the three thunderstorm centers-Southeast Asia, Africa and South America [20,[70][71][72][73][74], and a single thunderstorm center traveling around the globe [35,75,76]. An alternative approach is placing the receiver at the North or South Pole, which remain approximately equidistant from the main thunderstorm centers during the day [38]. A new distinct method, not requiring preliminary assumptions on the lightning distribution is based on the decomposition of the average background SR spectra, utilizing ratios between the average electric and magnetic spectra and between their linear combinations [77,78].…”

Section: Sr Background Observations Of Global Lightning Activitymentioning

confidence: 99%

ELF Electromagnetic Waves from Lightning: The Schumann Resonances

Price

2016

Atmosphere

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Lightning produces electromagnetic fields and waves in all frequency ranges. In the extremely low frequency (ELF) range below 100 Hz, the global Schumann Resonances (SR) are excited at frequencies of 8 Hz, 14 Hz, 20 Hz, etc. This review is aimed at the reader generally unfamiliar with the Schumann Resonances. First some historical context to SR research is given, followed by some theoretical background and examples of the extensive use of Schumann resonances in a variety of lightning-related studies in recent years, ranging from estimates of the spatial and temporal variations in global lighting activity, connections to global climate change, transient luminous events and extraterrestrial lightning. Both theoretical and experimental results of the global resonance phenomenon are presented. It is our hope that this review will increase the interest in SR among researchers previously unfamiliar with this phenomenon.

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“…The Earth-ionosphere cavity, composed of a thin insulator (the atmosphere) confined between two spherical conductors (the Earth and the ionosphere), provides the natural framework for both the DC and AC global circuits [1,2].…”

Section: Introductionmentioning

confidence: 99%