Case studies of enhanced E-layer formation at high-latitudes following sudden commencement absorption events
Case studies of enhanced E-layer formation at high-latitudes following sudden commencement absorption events
- Author(s): S.E. Ritchie and F. Honary
- DOI: 10.1049/cp:20060242
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- Author(s): S.E. Ritchie and F. Honary Source: 10th IET International Conference on Ionospheric Radio Systems and Techniques (IRST 2006), 2006 p. 2 – 6
- Conference: 10th IET International Conference on Ionospheric Radio Systems and Techniques (IRST 2006)
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- DOI: 10.1049/cp:20060242
- ISBN: 0 86341 659 4
- Location: London, UK
- Conference date: 18-21 July 2006
- Format: PDF
This paper examines the formation of an enhanced E-layer that blankets the F-layer following sudden commencement absorption (SCA) events. Our case studies illustrate that storm sudden commencement (SSC) events cause impulsive precipitation of the otherwise trapped high energy electron population and that the precipitation of these high energy electrons may create considerable but short lived electron density enhancements (ionisation) at all ionospheric altitudes and particularly in the D and E layers (60-120 km altitude). The effect on HF communication links is demonstrated.
Inspec keywords: E-region; ionospheric disturbances; HF radio propagation; D-region; ionospheric electromagnetic wave propagation; radio links; electromagnetic wave absorption; F-region; atmospheric precipitation
Subjects: Ionospheric electromagnetic wave propagation; Radio links and equipment; E-region; Ionospheric disturbances and modification experiments; Radiowave propagation; F-region; D-region
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