Artículo
Day-to-day variability of ionospheric characteristics in the American sector
Ezquer, Rodolfo Gerardo
; Mosert, Marta Estela
; Corbella, Roberto Daniel; Erazú, Maximiliano Bautista
; Radicella, Sandro María; Cabrera, Miguel Angel; de la Zerda, Luis Ricardo
![Icon](/themes/CONICETDigital/images/conicet.png)
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Fecha de publicación:
12/2004
Editorial:
Elsevier
Revista:
Advances in Space Research
ISSN:
0273-1177
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
This paper presents an analysis of the variability of ionospheric characteristics (f o F2, M(3000)F2) measured at American latitudes (latitudinal range: -65.2, 18.5). The database includes ionograms recorded during different seasonal and solar activity conditions. The parameters used are: median, lower and upper quartiles. Two parameters are considered: Cup = upper quartile/median, and Clo = lower quartile/median. The diurnal, seasonal and latitudinal behaviour of the variability is analysed for low and high solar activity. The variability parameters for four typical time periods of the day (22-02LT; 05-07LT; 10-14LT; 18-20LT) are presented for different seasons and the two levels of solar activity. The results indicate that the variability of f o F2 is high in low solar activity and larger at night than during the day. Most of the considered cases have shown that the variability of f o F2 has a latitudinal dependence. For some cases the variability was maximum at modip ≇±30. The fact that the quartiles are not equidistant from the median value suggests that it would be convenient to develop a model on Cup and Clo in order to predict the variability range of f o F2. Moreover, low variability was observed for M(3000)F2 and it does not vary with modip.
Palabras clave:
CRITICAL FREQUENCY
,
IONOSPHERE
,
VARIABILITY
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CCT - NOA SUR)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - NOA SUR
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - NOA SUR
Articulos(ICATE)
Articulos de INST.D/CS ASTRONOMICAS D/LA TIERRA Y DEL ESPACIO
Articulos de INST.D/CS ASTRONOMICAS D/LA TIERRA Y DEL ESPACIO
Citación
Ezquer, Rodolfo Gerardo; Mosert, Marta Estela; Corbella, Roberto Daniel; Erazú, Maximiliano Bautista; Radicella, Sandro María; et al.; Day-to-day variability of ionospheric characteristics in the American sector; Elsevier; Advances in Space Research; 34; 9; 12-2004; 1887-1893
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