Simulation study of the influence of the ionospheric layer height in the thin layer ionospheric model

This work aims to contribute to the understanding of the influence of the ionospheric layer height (ILH) on the thin layer ionospheric model (TLIM) used to retrieve ionospheric information from the GNSS observations. Particular attention is paid to the errors caused on the estimation of the vertical...

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Detalles Bibliográficos
Autores principales: Brunini, Claudio Antonio, Camilion, Emilio, Azpilicueta, Francisco Javier
Formato: Articulo
Lenguaje:Inglés
Publicado: 2011
Materias:
Astronomía
Geofísica
Thin layer ionospheric model
Ionospheric layer height
Mapping function
GNSS
vTEC
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/136627
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-136627
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Astronomía
Geofísica
Thin layer ionospheric model
Ionospheric layer height
Mapping function
GNSS
vTEC
spellingShingle Astronomía
Geofísica
Thin layer ionospheric model
Ionospheric layer height
Mapping function
GNSS
vTEC
Brunini, Claudio Antonio
Camilion, Emilio
Azpilicueta, Francisco Javier
Simulation study of the influence of the ionospheric layer height in the thin layer ionospheric model
topic_facet Astronomía
Geofísica
Thin layer ionospheric model
Ionospheric layer height
Mapping function
GNSS
vTEC
description This work aims to contribute to the understanding of the influence of the ionospheric layer height (ILH) on the thin layer ionospheric model (TLIM) used to retrieve ionospheric information from the GNSS observations. Particular attention is paid to the errors caused on the estimation of the vertical total electron content (vTEC) and the GNSS satellites and receivers inter-frequency biases (IFB), by the use of an inappropriate ILH. The work relies upon numerical simulations performed with an empirical model of the Earth’s ionosphere: the model is used to create realistic but controlled ionospheric scenarios and the errors are evaluated after recovering those scenarios with the TLIM. The error assessment is performed in the Central and the northern part of the South American continents, a region where large errors are expected due to the combined actions of the Appleton Anomaly of the ionosphere and the South-Atlantic anomaly of the geomagnetic field. According to this study, there does not exist a unique ILH that cancels the vTEC error for the whole region under consideration. The ILH that cancels the regional mean vTEC error varies with the solar activity and season. The latitude-dependent conversion error propagates to the parameters of the model used to represent the latitudinal variation on the vTEC on the ionospheric layer, and to the IFB, when these values are simultaneously estimated from the observed sTEC. Besides, the ILH that cancels the regional mean vTEC error is different from the one that cancels the IFB error and the difference between both ILH varies with the solar activity and season.
format Articulo
Articulo
author Brunini, Claudio Antonio
Camilion, Emilio
Azpilicueta, Francisco Javier
author_facet Brunini, Claudio Antonio
Camilion, Emilio
Azpilicueta, Francisco Javier
author_sort Brunini, Claudio Antonio
title Simulation study of the influence of the ionospheric layer height in the thin layer ionospheric model
title_short Simulation study of the influence of the ionospheric layer height in the thin layer ionospheric model
title_full Simulation study of the influence of the ionospheric layer height in the thin layer ionospheric model
title_fullStr Simulation study of the influence of the ionospheric layer height in the thin layer ionospheric model
title_full_unstemmed Simulation study of the influence of the ionospheric layer height in the thin layer ionospheric model
title_sort simulation study of the influence of the ionospheric layer height in the thin layer ionospheric model
publishDate 2011
url http://sedici.unlp.edu.ar/handle/10915/136627
work_keys_str_mv AT bruniniclaudioantonio simulationstudyoftheinfluenceoftheionosphericlayerheightinthethinlayerionosphericmodel
AT camilionemilio simulationstudyoftheinfluenceoftheionosphericlayerheightinthethinlayerionosphericmodel
AT azpilicuetafranciscojavier simulationstudyoftheinfluenceoftheionosphericlayerheightinthethinlayerionosphericmodel
bdutipo_str Repositorios
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