Sporadic structures in equatorial ionosphere as revealed from GPS occultation data

A method for monitoring of sporadic formations in the lower ionosphere by use of the amplitude and phase variations of decimeter radio waves in the occultation trans-ionospheric link GPS satellite — LEO CHAMP satellite is described. Typical variations of the amplitude and phase of the occultation si...

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Published inActa astronautica Vol. 63; no. 11; pp. 1350 - 1359
Main Authors Yakovlev, O.I., Wickert, J., Pavelyev, A.G., Matyugov, S.S., Anufriev, V.A.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.12.2008
Subjects
Ionosphere
Monitoring
Radio occultation
Satellite
Satellite
Radio occultation
Monitoring
Ionosphere
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Summary:A method for monitoring of sporadic formations in the lower ionosphere by use of the amplitude and phase variations of decimeter radio waves in the occultation trans-ionospheric link GPS satellite — LEO CHAMP satellite is described. Typical variations of the amplitude and phase of the occultation signal, caused by layered formations in the lower ionosphere, are considered. Parameters of sporadic structures measured during period of especially strong solar flashes from October 25 till November 9, 2003, are described. Results of statistical analysis of the occurrence frequency of sporadic layers, their altitude distribution, and thickness are presented. The electron density distribution in the lower ionosphere in the equatorial zone is estimated.
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ISSN:0094-5765
1879-2030
DOI:10.1016/j.actaastro.2008.05.023