Peculiar transient events in the Schumann resonance band and their possible explanation

Ondrášková, Adriena; Bór, József; ̆evčík, Sebastián S; Kostecký, P.; Rosenberg, L.

doi:10.1016/j.jastp.2007.04.013

Cited by 11 publications

(10 citation statements)

References 23 publications

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“…Ondraskova et al [43] reported a decrease in Schumann Resonance frequencies during the 2008-2009 solar cycle minimum. There are also infrequent "peculiar" events such as the overlapping transients in the vertical electric field over western Slovakia during May and June 2006 [44]. They were associated with juxtaposed transients whose onsets were separated by 130 to 150 ms. Decreases of the fundamental by about 0.15 Hz during peaks in proton penetrations concurrent with a diminished amplitude of about 0.2 pT and a decrease in resonance bandwidth (about 0.2 Hz) have also been reported [45].…”

Section: Discussionmentioning

confidence: 99%

Human Quantitative Electroencephalographic and Schumann Resonance Exhibit Real-Time Coherence of Spectral Power Densities: Implications for Interactive Information Processing

Persinger¹,

Saroka²

2015

JSIP

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Spectral Power Densities (SPD) within the Quantitative Electroencephalographic (QEEGs) Profiles of 41 men and women displayed repeated transient coherence with the first three modes (7 -8 Hz, 13 -14 Hz, and 19 -20 Hz) of the Schumann Resonance in real time. The duration of the coherence was about 300 ms about twice per min. Topographical map clusters indicated that the domain of maximum coherence was within the right caudal hemisphere near the Parahippocampal gyrus. These clusters, associated with shifts of about 2 μV, became stable about 35 to 45 ms after the onset of the synchronizing event. During the first 10 to 20 ms, the isoelectric lines shifted from clockwise to counterclockwise rotation. The results are consistent with the congruence of the frequency, magnetic field intensity, voltage gradient, and phase shifts that are shared by the human brain and the earth-ionospheric spherical wave guide. Calculations indicated that under certain conditions interactive information processing might occur for brief periods. Natural and technology-based variables affecting the Schumann parameters might be reflected in human brain activity, including modifications of cognition and dream-related memory consolidation.

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Section: Discussionmentioning

confidence: 99%

Human Quantitative Electroencephalographic and Schumann Resonance Exhibit Real-Time Coherence of Spectral Power Densities: Implications for Interactive Information Processing

Persinger¹,

Saroka²

2015

JSIP

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“…Amplitude data collected in Table 3 allow us to aside the dream of autotriggering of powerful lightning strokes by their own radiation that has traveled around the globe [Ondrášková et al, 2008]. The physical idea is very attractive indeed, and some experimental ELF pulses were demonstrated in the above paper as the candidates for the self-triggering.…”

Section: Pulsed Waveformsmentioning

confidence: 93%

Spectra and waveforms of ELF transients in the Earth‐ionosphere cavity with small losses

Nickolaenko

Hayakawa

2014

Radio Science

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Spectra and the waveforms are computed of the pulsed radio signals arriving from different distances to an observer in the Earth-ionosphere cavity with the single-scale exponential profile of air conductivity. The data were obtained for the cavity with exceptionally small losses. Spectra are compared of the signals in the realistic and an idealistic Earth-ionosphere cavities. The waveforms are computed for such cavities and the pulse propagation velocities are evaluated. Studies of the Schumann resonance started from the ideal cavity model. Subsequent works dealt with the realistic propagation parameters and the ionosphere models on the Earth and other planets. However, the case of small losses is missing in the literature. We model ELF radio signals in such a cavity and demonstrate their noticeable distinctions from the customary records. In particular, the sinusoidal signals do not appear in the cavity with small losses, and instead, we obtain the sharp and large pulses. Computations show that the waveform propagating in the spherical cavity expands in time and reduces in amplitude. The time domain pulsed amplitudes were found at the source antipode and at the source point for the round-the-world wave. The latter becomes rather small even in the cavity with minor losses, so that autotriggering is unrealistic of a consecutive lightning discharge by the round-the-world echo even in a cavity with minor losses.

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“…We hypothesize that perturbations of electric fields by the first three fundamental modes of the SR trigger the large‐scale electric discharge that produces the non‐thermal microwave radiation. These electric discharges in turn excite SR that triggers new electric discharges as suggested by Ondrášková et al [2008]. This is analogous to the triggering of terrestrial lightning by perturbations from nearby discharges [ Yair et al , 2006; Strogatz , 2000] and the coherent excitation of SR by separate lightning discharges in a single thunderstorm [ Ondrášková et al , 2008].…”

Section: Modulation Of the Non‐thermal Radiationmentioning

confidence: 94%

Emission of non‐thermal microwave radiation by a Martian dust storm

Ruf

Rennó

Kok

et al. 2009

Geophysical Research Letters

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We report evidence for the emission of non‐thermal microwave radiation by a deep Martian dust storm. The observations were made using an innovative detector that can discriminate between radiation of thermal and non‐thermal origin by measuring the high order moments of its electric field strength. Measurements with this detector, installed in a 34 m radio telescope of the Deep Space Network (DSN), were made for about 5 hours a day over a dozen days between 22 May and 16 June 2006. Non‐thermal radiation was detected for a few hours only when a 35 km deep Martian dust storm was within the field of view of the radio telescope on 8 June 2006. The spectrum of the non‐thermal radiation has significant peaks around predicted values of the lowest three modes of the Martian Schumann Resonance (SR). The SR results from electromagnetic standing waves formed in the concentric spherical cavity between the Martian surface and its ionosphere and forced by large‐scale electric discharge. Thus, the non‐thermal radiation was probably caused by electric discharge in the Martian dust storm.

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Peculiar transient events in the Schumann resonance band and their possible explanation

Cited by 11 publications

References 23 publications

Human Quantitative Electroencephalographic and Schumann Resonance Exhibit Real-Time Coherence of Spectral Power Densities: Implications for Interactive Information Processing

Human Quantitative Electroencephalographic and Schumann Resonance Exhibit Real-Time Coherence of Spectral Power Densities: Implications for Interactive Information Processing

Spectra and waveforms of ELF transients in the Earth‐ionosphere cavity with small losses

Emission of non‐thermal microwave radiation by a Martian dust storm

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