Estimating the Lower Ionosphere Height and Lightning Location Using Multimode "Tweek" Atmospherics

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dc.contributor.authorShvets, Аleksandr V.en
dc.contributor.authorSerdiuk, Tetiana M.en
dc.contributor.authorGorishnyaya, Y. V.uk_UA
dc.contributor.authorHobara, Y.en
dc.contributor.authorHayakawa, M.en
dc.date.accessioned2014-09-16T08:31:44Z
dc.date.available2014-09-16T08:31:44Z
dc.date.issued2014
dc.descriptionТ. Serdiuk: ORCID 0000-0002-2609-4071en
dc.description.abstractEN: There is proposed a new method of estimating the effective ionospheric height of the Earth-ionosphere waveguide and the propagation distance of tweek-atmospherics. It is based on the compensation of waveguide frequency dispersion of a tweek signal, which enables us to improve the accuracy of deducing the cutoff frequencies, especially in the presence of noise. An approach to solve the inverse problem is suggested that reduces the task of finding both the source range and the waveguide cutoff frequencies by using the multimode characteristics of tweeks to an issue of one-dimensional optimization. Based on the numerical modeling of multimode tweek-atmospherics in the Earth-ionosphere waveguide with exponential vertical conductivity profile of the lower ionosphere, it was shown that the accuracy of estimating the effective waveguide height by the new method is good as about 100-400. m for the first and higher order modes. It then allows us to estimate the parameters of vertical conductivity profile of the lower ionosphere for a wide range of source distances from a few hundred to a few thousand kilometers, as long as two or more tweek harmonics can be detected. Preliminary analysis of experimental tweek records show a decrease of the effective height with increasing the mode number, and the scale height of the exponential vertical conductivity profile for the isotropic lower ionosphere model is estimated to be in a range of 0.4-2.5. km. © 2013 .en
dc.description.sponsorshipІнститут радіофізики та електроніки ім. О. Я. Усикова, Харків; The University of Electro-Communications, Chofu Tokyouk_UA
dc.identifier.citationEstimating the Lower Ionosphere Height and Lightning Location using Multimode "Tweek" Atmospherics / A. V. Shvets, T. M. Serdiuk, Y. V. Gorishnyaya, Y. Hobara, M. Hayakawa // Journal of Atmospheric and Solar-Terrestrial Physics. — 2014. – Vol. 108. – p. 1–9.en
dc.identifier.issn13646826
dc.identifier.otherDOI: 10.1016/j.jastp.2013.11.007
dc.identifier.urihttp://www.researchgate.net/publication/259158848_Estimating_the_Lower_Ionosphere_Height_and_Li
dc.identifier.urihttp://eadnurt.diit.edu.ua/jspui/handle/123456789/2644
dc.identifier.urihttp://www.sciencedirect.com/science/article/pii/S1364682613003064
dc.language.isoen
dc.publisherElsevieren
dc.subjectearth ionosphere waveguideen
dc.subjectfrequency dispersionen
dc.subjectionospheric heightsen
dc.subjectlightning locationen
dc.subjectlower ionosphereen
dc.subjectpreliminary analysisen
dc.subjectpropagation distancesen
dc.subjecttweek-atmosphericsen
dc.subjectatmosphericsen
dc.subjectcutoff frequencyen
dc.subjectestimationen
dc.subjectinverse problemsen
dc.subjectionospheric measurementen
dc.subjectlightningen
dc.subjectwaveguidesen
dc.subjectionosphereen
dc.subjectіоносферний хвилевідuk_UA
dc.subjectчастотна дисперсіяuk_UA
dc.subjectіоносферні висотиuk_UA
dc.subjectрозташування блискавкиuk_UA
dc.subjectнижня іоносфераuk_UA
dc.subjectпопередній аналізuk_UA
dc.subjectвідстань розповсюдженняuk_UA
dc.subjectтвік-атмосферикиuk_UA
dc.subjectатмосферикиuk_UA
dc.subjectчастота зрізуuk_UA
dc.subjectоцінкаuk_UA
dc.subjectзворотня задачаuk_UA
dc.subjectіоносферне вимірюванняuk_UA
dc.subjectблискавкаuk_UA
dc.subjectхвилеводиuk_UA
dc.subjectіоносфераuk_UA
dc.subjectионосферный волноводru_RU
dc.subjectчастотная дисперсияru_RU
dc.subjectионосферные высотыru_RU
dc.subjectрасположение молнииru_RU
dc.subjectнижняя ионосфераru_RU
dc.subjectпредварительный анализru_RU
dc.subjectрасстояние распространенияru_RU
dc.subjectтвик-атмосферикиru_RU
dc.subjectатмосферикиru_RU
dc.subjectчастота срезаru_RU
dc.subjectоценкаru_RU
dc.subjectобратная задачаru_RU
dc.subjectионосферное измерениеru_RU
dc.subjectмолнияru_RU
dc.subjectволноводыru_RU
dc.subjectионосфераru_RU
dc.subjectScopusen
dc.subjectскопусuk_UA
dc.titleEstimating the Lower Ionosphere Height and Lightning Location Using Multimode "Tweek" Atmosphericsen
dc.typeArticleen
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