Double Resonance Production of Ionospheric Irregularities.
Abstract
A central question is the anomalously broad spectral width of the plasma line observed during ionospheric RF heating at Arecibo. The authors first suggested this is due to lower hybrid parametric instabilities but rejected it due to its high power threshold. They developed a numerical code which traces propagation and amplification of electron waves generated by ion acoustic parametric instability in a vertically stratified ionosphere. It is found that the plasma line observed by backscatter has a 'core' of locally generated and detected waves, and broad 'wings' of remotely generated high frequency waves. The wings are highly aspect and frequency sensitive. The authors also suggest that an intense RF pump should trap plasma waves in its field maxima, which may account for the fading observed in Boulder RF heating experiments. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 30, 1972
- Accession Number
- AD0747495
Entities
People
- Albert Y. Wong
- Burton D. Fried
- Charles F. Kennel
- Donald Arnush
- Robert S. Margulies
Organizations
- TRW Inc.