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A Schumann Resonance-based Quantity for Characterizing Day-to-day Changes in Global Lightning Activity
  • +19
  • Tamas Bozoki,
  • Gabriella Sátori,
  • Earle Williams,
  • Anirban Guha,
  • Yakun Liu,
  • Peter Steinbach,
  • Mike Atkinson,
  • Ciaran D Beggan,
  • Elizabeth DiGangi,
  • Alexander V Koloskov,
  • Andrzej Kulak,
  • Jeff Lapierre,
  • David K. Milling,
  • Janusz Mlynarczyk,
  • Anne Neska,
  • Alexander S. Potapov,
  • Tero Raita,
  • Rahul Rawat,
  • Ryan K Said,
  • Ashwini Kumar Sinha,
  • Yuri M Yampolski
Tamas Bozoki
Institute of Earth Physics and Space Science (ELKH EPSS)

Corresponding Author:[email protected]

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Gabriella Sátori
Geodetic and Geophysical Research Insitute, Hungarian Academy of Sciences
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Earle Williams
Massachusetts Institute of Technology
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Anirban Guha
Tripura University
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Yakun Liu
Massachusetts Institute of Technology
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Peter Steinbach
Eötvös Loránd Research Network (ELKH)
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Federal University of Para
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Mike Atkinson
HeartMath Institute
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Ciaran D Beggan
British Geological Survey
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Elizabeth DiGangi
Earth Networks Inc.
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Alexander V Koloskov
Institute of Radio Astronomy
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Andrzej Kulak
AGH University of Science and Technology
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Jeff Lapierre
Advanced Environmental Monitoring (AEM)
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David K. Milling
University of Alberta
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Janusz Mlynarczyk
AGH University of Science and Technology
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Anne Neska
Institute of Geophysics, Polish Academy of Sciences
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Alexander S. Potapov
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Tero Raita
Sodankylä Geophysical Observatory, University of Oulu
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Rahul Rawat
Indian Institute of Geomagnetism
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Ryan K Said
Vaisala, Inc.
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Ashwini Kumar Sinha
Indian Institute of Geomagnetism
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Yuri M Yampolski
Institute of Radio Astronomy, Ukraine
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The importance of lightning has long been recognized from the point of view of climate-related phenomena. However, the detailed investigation of lightning on global scales is currently hindered by the incomplete and spatially uneven detection efficiency of ground-based global lightning detection networks and by the restricted spatio-temporal coverage of satellite observations. We are developing different methods for investigating global lightning activity based on Schumann resonance (SR) measurements. SRs are global electromagnetic resonances of the Earth-ionosphere cavity maintained by the vertical component of lightning. Since charge separation in thunderstorms is gravity-driven, charge is typically separated vertically in thunderclouds, so every lightning flash contributes to the measured SR field. This circumstance makes SR measurements very suitable for climate-related investigations. In this study, 19 days of global lightning activity in January 2019 are analyzed based on SR intensity records from 18 SR stations and the results are compared with independent lightning observations provided by ground-based (WWLLN, GLD360 and ENTLN) and satellite-based (GLM, LIS/OTD) global lightning detection. Daily average SR intensity records from different stations exhibit strong similarity in the investigated time interval. The inferred intensity of global lightning activity varies by a factor of 2-3 on the time scale of 3-5 days which we attribute to continental-scale temperature changes related to cold air outbreaks from polar regions. While our results demonstrate that the SR phenomenon is a powerful tool to investigate global lightning, it is also clear that currently available technology limits the detailed quantitative evaluation of lightning activity on continental scales.
24 Jan 2023Submitted to ESS Open Archive
24 Jan 2023Published in ESS Open Archive