Quiet and perturbed ionospheric representation according to the electron content from GPS signals

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Signals from Global Positioning System (GPS) satellites received at the surface of the Earth have passed through the terrestrial atmosphere and are therefore affected by refraction in the ionosphere. A large number of permanent dual frequencies GPS tracking stations have been built up in the last ye...

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Autores principales: Brunini, Claudio Antonio, Van Zele, María Andrea, Meza, Amalia Margarita, Gende, Mauricio
Formato: Articulo
Lenguaje:Inglés
Publicado: 2003
Materias:
Ciencias Astronómicas
Global positioning system
GPS
Ionosphere
TEC
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84929
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84929
record_format dspace
spelling I19-R120-10915-849292023-04-21T18:32:42Z http://sedici.unlp.edu.ar/handle/10915/84929 issn:2169-9402 Quiet and perturbed ionospheric representation according to the electron content from GPS signals Brunini, Claudio Antonio Van Zele, María Andrea Meza, Amalia Margarita Gende, Mauricio 2003 2019-11-05T14:22:57Z en Ciencias Astronómicas Global positioning system GPS Ionosphere TEC Signals from Global Positioning System (GPS) satellites received at the surface of the Earth have passed through the terrestrial atmosphere and are therefore affected by refraction in the ionosphere. A large number of permanent dual frequencies GPS tracking stations have been built up in the last years and their data have proved to be suitable to study the ionosphere. The main goal of this paper is to assess the capability of these observations to continuously and routinely monitor the ionosphere at a global scale. The interest was focused on retrieving the coefficients of a spherical harmonics expansion that describe the global distribution of the vertical total electron content (VTEC) from the GPS signal. To test our results, we compare them with other GPS-derived results, with VTEC values computed with the International Reference Ionosphere (IRI-95) model, and with direct VTEC determinations provided by Topex-Poseidon satellite. A large set of global VTEC maps with a time resolution of 2 hours was used to describe the evolution of this ionospheric variable at quiet geomagnetic periods during the year 1997. The outstanding features of the VTEC during the 15 May 1997 geomagnetic storm have also been studied. The results show that our method is able to identify large-scale features and seasonal variations of the VTEC in quiet conditions, as well as its variations during a large geomagnetic storm. Facultad de Ciencias Astronómicas y Geofísicas Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Global positioning system
GPS
Ionosphere
TEC
spellingShingle Ciencias Astronómicas
Global positioning system
GPS
Ionosphere
TEC
Brunini, Claudio Antonio
Van Zele, María Andrea
Meza, Amalia Margarita
Gende, Mauricio
Quiet and perturbed ionospheric representation according to the electron content from GPS signals
topic_facet Ciencias Astronómicas
Global positioning system
GPS
Ionosphere
TEC
description Signals from Global Positioning System (GPS) satellites received at the surface of the Earth have passed through the terrestrial atmosphere and are therefore affected by refraction in the ionosphere. A large number of permanent dual frequencies GPS tracking stations have been built up in the last years and their data have proved to be suitable to study the ionosphere. The main goal of this paper is to assess the capability of these observations to continuously and routinely monitor the ionosphere at a global scale. The interest was focused on retrieving the coefficients of a spherical harmonics expansion that describe the global distribution of the vertical total electron content (VTEC) from the GPS signal. To test our results, we compare them with other GPS-derived results, with VTEC values computed with the International Reference Ionosphere (IRI-95) model, and with direct VTEC determinations provided by Topex-Poseidon satellite. A large set of global VTEC maps with a time resolution of 2 hours was used to describe the evolution of this ionospheric variable at quiet geomagnetic periods during the year 1997. The outstanding features of the VTEC during the 15 May 1997 geomagnetic storm have also been studied. The results show that our method is able to identify large-scale features and seasonal variations of the VTEC in quiet conditions, as well as its variations during a large geomagnetic storm.
format Articulo
Articulo
author Brunini, Claudio Antonio
Van Zele, María Andrea
Meza, Amalia Margarita
Gende, Mauricio
author_facet Brunini, Claudio Antonio
Van Zele, María Andrea
Meza, Amalia Margarita
Gende, Mauricio
author_sort Brunini, Claudio Antonio
title Quiet and perturbed ionospheric representation according to the electron content from GPS signals
title_short Quiet and perturbed ionospheric representation according to the electron content from GPS signals
title_full Quiet and perturbed ionospheric representation according to the electron content from GPS signals
title_fullStr Quiet and perturbed ionospheric representation according to the electron content from GPS signals
title_full_unstemmed Quiet and perturbed ionospheric representation according to the electron content from GPS signals
title_sort quiet and perturbed ionospheric representation according to the electron content from gps signals
publishDate 2003
url http://sedici.unlp.edu.ar/handle/10915/84929
work_keys_str_mv AT bruniniclaudioantonio quietandperturbedionosphericrepresentationaccordingtotheelectroncontentfromgpssignals
AT vanzelemariaandrea quietandperturbedionosphericrepresentationaccordingtotheelectroncontentfromgpssignals
AT mezaamaliamargarita quietandperturbedionosphericrepresentationaccordingtotheelectroncontentfromgpssignals
AT gendemauricio quietandperturbedionosphericrepresentationaccordingtotheelectroncontentfromgpssignals
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