Simulation of decametric wave propagation in the ionospheric plasma

The decametric radiowaves propagation in the ionospheric plasmawas considered. Bicharacteristic system of equations was used in themodeling ray structures. This system, which allows finding the raypaths with great precision, was obtained by D.S. Lukin. Models ofthe ionosphere with horizontal gradien...

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Autores Principales: Kiryanova, Kseniya S., Kryukovsky, Andrey S., Lukin, Dmitry S.
Formato: Artículo
Idioma: Español
Publicado: 2015
Acceso en línea: http://revistas.ucr.ac.cr/index.php/matematica/article/view/8475
http://hdl.handle.net/10669/13023
id RepoKERWA13023
recordtype dspace
spelling RepoKERWA130232017-08-08T18:50:28Z Simulation of decametric wave propagation in the ionospheric plasma Simulación de propagación decamétrica de ondas en el plasma ionosférico Kiryanova, Kseniya S. Kryukovsky, Andrey S. Lukin, Dmitry S. The decametric radiowaves propagation in the ionospheric plasmawas considered. Bicharacteristic system of equations was used in themodeling ray structures. This system, which allows finding the raypaths with great precision, was obtained by D.S. Lukin. Models ofthe ionosphere with horizontal gradients were used in the calcula-tions; local inhomogeneities, such as reduced electron density in themaximum layer and increased electron density below the maximumlayer, were taken into account. The features of shortwave propaga-tion, such as getting a wave of interlayer channel, distribution andout of it, reflection of waves from different ionospheric layers wereexplored. Was shown that the rays can be ejected from the field ofdistribution and curled when hit in the inhomogeneity of the iono-sphere. The formation of caustic surfaces and its dynamics werestudied. The radiowaves propagation in the Earth’s ionosphere wasstudied. This ionosphere profiles were restored the scientific groupled by Professor V.E. Kunitsyn by radiotomographymethod based onreal observations. Ray structures in the area of “equatorial anomaly”were built. The models, both including and excluding the effect ofEarth’s magnetic field and the influence of the equatorial anomalywere considered. Ray structures at the different positions of the ra-diation source, as well as different operating frequency, were investi-gated. Dynamic model of the ray’s propagation was developed. Se considera la propagación de radioondas decamétricas en elplasma ionosférico. Se usa un sistema bicaracteríıstico de ecuacionespara modelar las estructuras radiales. Este sistema, que permite en-contrar los caminos radiales con gran precisión, fueobtenido por D.S.Lukin. En los cálculos se usaron modelos de la ionosfera con gradi-entes horizontales; se tomaron en cuenta inhomogeneidades locales,tales como densidad reducida de electrones en la capa máxima y den-didad aumentada de electrones bajo la capa máxima. Se exploraroncaracterísticas de la propagación de las ondas cortas. Se muestra quelos rayos pueden ser expulsados del campo de distribución y hacerun bucle cuando chocan con la inhomogeneidad dela ionosfera. Seestudia la formación de superficies cáusticas y su dinámica. Tambiénse estudia la propagación de radioondas en la ionosfera de la Tierra.Los perfiles de esta ionosfera fueron dados al grupo liderado por elProfesor V.E. Kunitsyn por medio del método de radiotomografíabasado en observaciones reales. Se construyeron estructuras de rayosen el área de “anomalía ecuatorial”. Se consideraron que incluyen yque excluyen el efecto del campo magnético de la Tierra y la influ-encia de la anomalía ecuatorial. Se investigaron estructuras radiales en diferentes posiciones de la fuenta de la radiación, así como dife-rentes frecuencias operativas. Se desarrolló el modelo dinámico de lapropagación de los rayos. 2015-05-19T19:07:31Z 2015-05-19T19:07:31Z 2013-04-04 00:00:00 2015-05-19T19:07:31Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://revistas.ucr.ac.cr/index.php/matematica/article/view/8475 http://hdl.handle.net/10669/13023 10.15517/rmta.v20i1.8475 es Revista de Matemática: Teoría y Aplicaciones Vol. 20 Núm. 1 2013 21-34 application/pdf
institution Universidad de Costa Rica
collection Repositorio KERWA
language Español
description The decametric radiowaves propagation in the ionospheric plasmawas considered. Bicharacteristic system of equations was used in themodeling ray structures. This system, which allows finding the raypaths with great precision, was obtained by D.S. Lukin. Models ofthe ionosphere with horizontal gradients were used in the calcula-tions; local inhomogeneities, such as reduced electron density in themaximum layer and increased electron density below the maximumlayer, were taken into account. The features of shortwave propaga-tion, such as getting a wave of interlayer channel, distribution andout of it, reflection of waves from different ionospheric layers wereexplored. Was shown that the rays can be ejected from the field ofdistribution and curled when hit in the inhomogeneity of the iono-sphere. The formation of caustic surfaces and its dynamics werestudied. The radiowaves propagation in the Earth’s ionosphere wasstudied. This ionosphere profiles were restored the scientific groupled by Professor V.E. Kunitsyn by radiotomographymethod based onreal observations. Ray structures in the area of “equatorial anomaly”were built. The models, both including and excluding the effect ofEarth’s magnetic field and the influence of the equatorial anomalywere considered. Ray structures at the different positions of the ra-diation source, as well as different operating frequency, were investi-gated. Dynamic model of the ray’s propagation was developed.
format Artículo
author Kiryanova, Kseniya S.
Kryukovsky, Andrey S.
Lukin, Dmitry S.
spellingShingle Kiryanova, Kseniya S.
Kryukovsky, Andrey S.
Lukin, Dmitry S.
Simulation of decametric wave propagation in the ionospheric plasma
author_sort Kiryanova, Kseniya S.
title Simulation of decametric wave propagation in the ionospheric plasma
title_short Simulation of decametric wave propagation in the ionospheric plasma
title_full Simulation of decametric wave propagation in the ionospheric plasma
title_fullStr Simulation of decametric wave propagation in the ionospheric plasma
title_full_unstemmed Simulation of decametric wave propagation in the ionospheric plasma
title_sort simulation of decametric wave propagation in the ionospheric plasma
publishDate 2015
url http://revistas.ucr.ac.cr/index.php/matematica/article/view/8475
http://hdl.handle.net/10669/13023
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