Variations of foF2 and GPS total electron content over the Antarctic sector

This paper presents a preliminary analysis of the variations of the critical frequency of the F<SUB>2</SUB> region (f<SUB>o</SUB>F<SUB>2</SUB>) and the total electron content (TEC) derived from Global Positioning System (GPS) data. Hourly f<SUB>o</SUB>...

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Detalles Bibliográficos
Autores principales: Mosert, M., McKinnell, L. A., Gende, Mauricio, Brunini, Claudio Antonio, Araujo, J., Ezquer, R. G., Cabrera, M.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2011
Materias:
Ciencias Astronómicas
GPS TEC
High latitude
Ionosphere
IRI
foF2
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83679
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-83679
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
GPS TEC
High latitude
Ionosphere
IRI
foF2
spellingShingle Ciencias Astronómicas
GPS TEC
High latitude
Ionosphere
IRI
foF2
Mosert, M.
McKinnell, L. A.
Gende, Mauricio
Brunini, Claudio Antonio
Araujo, J.
Ezquer, R. G.
Cabrera, M.
Variations of foF2 and GPS total electron content over the Antarctic sector
topic_facet Ciencias Astronómicas
GPS TEC
High latitude
Ionosphere
IRI
foF2
description This paper presents a preliminary analysis of the variations of the critical frequency of the F<SUB>2</SUB> region (f<SUB>o</SUB>F<SUB>2</SUB>) and the total electron content (TEC) derived from Global Positioning System (GPS) data. Hourly f<SUB>o</SUB>F<SUB>2</SUB> values were scaled from ionograms recorded at San Martin (68.1°S, 293.0°E) and the TEC values were derived from GPS observations at O'Higgins (63.3°S, 302.5 °E). The database includes measurements obtained under different seasonal and solar activity conditions. The study shows that the daily peak of f<SUB>o</SUB>F<SUB>2</SUB> occurs around local noon in winter and fall, and in spring a secondary peak is observed around midnight. In summer (January) f<SUB>o</SUB>F<SUB>2</SUB> reaches its minimum value around the noon sector while the maximum in the diurnal variation of f<SUB>o</SUB>F<SUB>2</SUB> is located in a time sector close to midnight. This behaviour is observed at low and high solar activity. The semiannual anomaly appears around noon at high and low solar activity and the winter anomaly is not observed. The effect of the solar activity is generally observed in every season. The analysis of the GPS TEC measurements in the same region indicates that the diurnal, seasonal and solar activity variations are similar to those observed in the f<SUB>o</SUB>F<SUB>2</SUB> values. An analysis of the performance of the IRI model to predict f<SUB>o</SUB>F<SUB>2</SUB> is also shown using the two IRI options (URSI and CCIR). The comparisons between the experimental values and the IRI predictions show some discrepancies.
format Articulo
Articulo
author Mosert, M.
McKinnell, L. A.
Gende, Mauricio
Brunini, Claudio Antonio
Araujo, J.
Ezquer, R. G.
Cabrera, M.
author_facet Mosert, M.
McKinnell, L. A.
Gende, Mauricio
Brunini, Claudio Antonio
Araujo, J.
Ezquer, R. G.
Cabrera, M.
author_sort Mosert, M.
title Variations of foF2 and GPS total electron content over the Antarctic sector
title_short Variations of foF2 and GPS total electron content over the Antarctic sector
title_full Variations of foF2 and GPS total electron content over the Antarctic sector
title_fullStr Variations of foF2 and GPS total electron content over the Antarctic sector
title_full_unstemmed Variations of foF2 and GPS total electron content over the Antarctic sector
title_sort variations of fof2 and gps total electron content over the antarctic sector
publishDate 2011
url http://sedici.unlp.edu.ar/handle/10915/83679
work_keys_str_mv AT mosertm variationsoffof2andgpstotalelectroncontentovertheantarcticsector
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