VLF-LF propagation measurements during the 11 August 1999 solar eclipse
VLF-LF propagation measurements during the 11 August 1999 solar eclipse
- Author(s): R. Fleury and P. Lassudrie-Duchesne
- DOI: 10.1049/cp:20000208
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- Author(s): R. Fleury and P. Lassudrie-Duchesne Source: 8th International Conference on High-Frequency Radio Systems and Techniques, 2000 p. 391 – 395
- Conference: 8th International Conference on High-Frequency Radio Systems and Techniques
- DOI: 10.1049/cp:20000208
- ISBN: 0 85296 727 6
- Location: Guildford, UK
- Conference date: 10-13 July 2000
- Format: PDF
A survey of the VLF-LF spectrum evolution has been conducted during the 11 August 1999 solar eclipse in the vicinity of the totality region. The measurements consisted of amplitude spectrum acquisitions in the frequency band 10-80 kHz with a repetition period of 1 min. The field strength received from various transmitters could thus be monitored both during the eclipse and control days. The time signatures of the eclipse appear to be highly variable according to the frequency and radio path characteristics. The main features of the eclipse signatures are interpreted by using a waveguide propagation model.
Inspec keywords: ionospheric disturbances; radiowave propagation; solar eclipses; Earth-ionosphere waveguide; D-region
Subjects: Radiowave propagation; Radiowave and rocket soundings of the ionosphere; Eclipses, transits and occultations; Ionospheric disturbances and modification experiments; D-region; Ionospheric electromagnetic wave propagation
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