A modified technique to locate the sources of ELF transient events |
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| Affiliation: | 1. Servei Meteorològic de Catalunya. C. Berlin, 38-46, Barcelona, CP 08029, Spain;2. Centre of Applied Research in Hydrometeorology, Universitat Politècnica de Catalunya, BarcelonaTech. Jordi Girona 1-3, Edifici C4, S1, Barcelona, CP 08034, Spain;3. Dpt. de Fisica Aplicada, Universitat de Barcelona. Martí i Franquès 1, Barcelona, CP 08028, Spain;1. Natural Resource Institute, Federal University of Itajubá (UNIFEI), Itajubá, Minas Gerais, 37501-151, Brazil;2. Post Graduate Program in Environmental and Hydrological Studies, Federal University of Itajubá (UNIFEI), Itajubá, Minas Gerais, 37501-151, Brazil;3. Center for Weather Forecasting and Climate Studies (CPTEC), National Institute for Space Research, Cachoeira Paulista, São Paulo, 12630-000, Brazil;4. Department of Atmospheric and Climatic Science, Federal University of Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte, 59078-970, Brazil;5. Department of Atmospheric Sciences, Astronomy Institute, Atmospheric and Geophysical Sciences, University of São Paulo (USP), São Paulo, São Paulo, 05508-090, Brazil |
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| Abstract: | An algorithm is proposed for the location of the sources of ELF transient events which occur in the Schumann resonance range. The procedure yields a uniformly rotating vector in the frequency domain. The vector is formed out of the recorded vertical electric and horizontal magnetic field components. The changes of this vector with frequency provide a pair of equations for the evaluation of two of the three unknown parameters: these are the distance from the source, phase and attenuation constants of the waveguide. |
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