Effects of Energetic Solar Emissions on the Earth–Ionosphere Cavity of Schumann Resonances

Sátori, Gabriella; Williams, Earle; Price, Colin; Boldi, R.; Koloskov, A. V.; Yampolski, Y. М.; Guha, Anirban; Barta, Veronika

doi:10.1007/s10712-016-9369-z

Cited by 26 publications

(46 citation statements)

References 53 publications

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“…The study presented in this section seems to indicate evidence of a correlation between the solar event and changes in the SR parameters, as reported by Zhou and Qiao [2015] and Sátori et al [2016], although the results are not completely comparable, since the magnitude of these events is higher than the magnitude of the solar events occurring on the St Patrick's interval days considered in this work. The deviations observed here cannot be so clearly separated from unavoidable interferences, and the conclusions should be drawn together with those of common studies by other authors and ELF stations before being considered as concluding results.…”

Section: Resultssupporting

confidence: 55%

Solar storm effects during Saint Patrick's Days in 2013 and 2015 on the Schumann resonances measured by the ELF station at Sierra Nevada (Spain)

et al. 2016

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The effects of solar storms occurring during the days 17 to 19 March 2013 and 2015, St. Patrick's Day intervals, on Schumann resonances (SRs) have been studied. To do this, the experimental data recorded by the Juan Antonio Morente extremely low frequency station located at Sierra Nevada, Spain, have been processed in order to obtain hourly averaged information on the first three resonance modes. Results are compared with monthly averages of the SR data for each hour to detect deviations from the regular behavior. Evidence of significant changes in the peak amplitudes and frequencies of the SRs have been identified in the station's measurements and related to the coronal mass ejection impact in the magnetosphere, detected by in situ plasma measurements onboard spacecraft in the solar wind. However, the complicated nature of the Schumann resonances, dependent on multiple variables and subject to multiple unavoidable interferences (e.g., lightning or human radio sources), in conjunction with the complex magnetosphere‐ionosphere‐atmosphere coupling processes, makes it difficult to conclude that the observed deviations are exclusively due to the solar events mentioned. Results extracted from only two solar events cannot be considered as conclusive, and therefore, independent comparison with results reported by other research would seem advisable in future works on this subject.

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Section: Resultssupporting

confidence: 55%

Solar storm effects during Saint Patrick's Days in 2013 and 2015 on the Schumann resonances measured by the ELF station at Sierra Nevada (Spain)

et al. 2016

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“…The last topic has received considerable interest over the past few years. Effects primarily on SR frequencies have been detected during cosmic gamma-ray bursts [177,178], solar flares and solar proton events [62,[178][179][180], as well as over the 11-year solar cycle [181][182][183]. Despite these remaining open problems, SR is one of the most promising tools in a variety of fields related to lightning electromagnetics.…”

Section: Discussionmentioning

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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“…Schumann resonances correspond to the AC (alternatingcurrent) part of the GEC and can be interpreted as the electromagnetic resonance of the Earth-ionosphere cavity (Schumann, 1952). SRs are maintained by global lightning activity and can be observed at characteristic resonance frequencies at around 8, 14, 20, etc.…”

Section: Sr Measurements 231 the Sr Measuring Systemmentioning

confidence: 99%

Measurements of atmospheric electricity in the Széchenyi István Geophysical Observatory, Hungary

Bór¹,

Sátori

Barta

et al. 2020

Hist. Geo Space. Sci.

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Abstract. The Széchenyi István Geophysical Observatory, also known as the Nagycenk Geophysical Observatory (NCK), was established in 1957. It has been the only measurement site in Hungary where observations of various parameters of the atmospheric global electric circuit are made in the framework of organized research under the umbrella of the Hungarian Academy of Sciences (MTA). Measurements of the atmospheric electrical potential gradient (PG) and Schumann resonances (SRs) running quasi-continuously in the observatory for decades provide an invaluable source of information for geophysical research. This paper gives an overview on the history of the observatory and particularly on various atmospheric electricity (AE) measurements on-site to commemorate the efforts and excellence of the people who served atmospheric sciences by dedicating their lives to obtaining high-quality, reliable data and scientific achievements at the highest possible level.

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Effects of Energetic Solar Emissions on the Earth–Ionosphere Cavity of Schumann Resonances

Cited by 26 publications

References 53 publications

Solar storm effects during Saint Patrick's Days in 2013 and 2015 on the Schumann resonances measured by the ELF station at Sierra Nevada (Spain)

Solar storm effects during Saint Patrick's Days in 2013 and 2015 on the Schumann resonances measured by the ELF station at Sierra Nevada (Spain)

ELF Electromagnetic Waves from Lightning: The Schumann Resonances

Measurements of atmospheric electricity in the Széchenyi István Geophysical Observatory, Hungary

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Effects of Energetic Solar Emissions on the Earth–Ionosphere Cavity of Schumann Resonances

Cited by 26 publications

References 53 publications

Solar storm effects during Saint Patrick's Days in 2013 and 2015 on the Schumann resonances measured by the ELF station at Sierra Nevada (Spain)

Solar storm effects during Saint Patrick's Days in 2013 and 2015 on the Schumann resonances measured by the ELF station at Sierra Nevada (Spain)

ELF Electromagnetic Waves from Lightning: The Schumann Resonances

Measurements of atmospheric electricity in the Sz&#233;chenyi Istv&#225;n Geophysical Observatory, Hungary

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Product

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Measurements of atmospheric electricity in the Széchenyi István Geophysical Observatory, Hungary