Diurnal and seasonal variations in the Schumann resonance parameters observed at Chinese observatories

Zhou, Hailiang; Yu, Huaqing; Cao, Bisong; Xiaolin, Qiao

doi:10.1016/j.jastp.2013.03.021

Cited by 25 publications

(35 citation statements)

References 27 publications

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“…Results are similar to Zhou et al [2013] but with the corresponding translation of the observation point taken into account. It can be observed from Figure 12 that the NS magnetic field component shows maximum amplitude during the boreal summer months and minimum during the boreal winter period.…”

Section: Schumann Resonance Measurementssupporting

confidence: 58%

“…of early SR investigations, see Nickolaenko and Hayakawa [2002]. Some recent stations concerning SR measurements are reported in Zhou et al [2013], Kulak et al [2014], and Sierra et al [2014]. From a more general point of view, not only concerning measurement stations, the interest in the study of the global and local ionosphere electromagnetic properties and applications becomes evident from the number and diversity of recent papers concerning these topics [Cushley and Noël, 2014;Gulyaeva et al, 2014;Cherniak et al, 2014;Nickolaenko and Hayakawa, 2014;Ohta et al, 2013;Fraser-Smith and Kjono, 2014].…”

Section: Introductionmentioning

confidence: 99%

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Extremely low frequency band station for natural electromagnetic noise measurement

et al. 2015

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A new permanent ELF measurement station has been deployed in Sierra Nevada, Spain. It is composed of two magnetometers, oriented NS and EW, respectively. At 10 Hz, their sensitivity is 19 μV/pT and the signal-to-noise ratio (SNR) is 28 dB for a time-varying signal of 1 pT, the expected field amplitude in Sierra Nevada. The station operates for frequencies below 24 Hz. The magnetometers, together with their corresponding electronics, have been specifically designed to achieve such an SNR for small signals. They are based on high-resolution search coils with ferromagnetic core and 10 6 turns, operating in limited geometry configuration. Different system noise sources are considered, and a study of the SNR is also included. Finally, some initial Schumann resonance measurements are presented in order to validate the performance of the measurement station, including 1 h length spectra, daily variations of resonance amplitudes and frequencies for the different seasons, and a 3 day spectrogram.

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Section: Schumann Resonance Measurementssupporting

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Extremely low frequency band station for natural electromagnetic noise measurement

et al. 2015

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“…The three major regions of lightning activity (i.e., Asia, Africa, and America) affect amplitude of SR [e.g., Zhou et al, 2013]. Since thunderstorms become most active in the afternoon local time, the maximum of the global lightning activity is found somewhere between the point of local noon and the evening terminator.…”

Section: Discussion and Summarymentioning

confidence: 99%

“…The variation in the amplitude of SR in a day show peaks which correspond with the three major thunderstorm centers, namely, African, Asian, and American [e.g., Sátori et al, 1996;Zhou et al, 2013].…”

Section: Introductionmentioning

confidence: 99%

Characteristics of Schumann Resonance Parameters at Kuju Station

et al. 2017

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The ground magnetic field variation in the extremely low frequency (ELF) range has been measured by an induction magnetometer at Kuju, Japan (KUJ; M.Lat. = 23.4 degrees, M. Lon. = 201.0 degrees) since 2003. The first mode of the Schumann resonance (SR) around 8 Hz can be seen at KUJ. The SR in H (horizontal northward component) shows maximum peaks around 08 UT and 15 UT. In the case of D (horizontal eastward component), the SR shows its maximum peak around 08 UT. These peaks are coincident with the enhancement of lightning activity in Africa and Asia. Thus, we found the influence of the lightning activity on the observed SR at KUJ.

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“…In recent years, researches on the Schumann resonance for the prediction of short impending earthquake prediction [6][7][8][9] are reported. SR as a new electromagnetic precursor of earthquakes, has the advantages of relatively strong anti-interference ability [3,[10][11][12], so it has been given widespread attentions.…”

Section: Introductionmentioning

confidence: 99%