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Temporal evolution of HF-enhanced plasma linesA theoretical investigation is conducted of the temporal evolution of HF-enhanced plasma lines (HFPLs). An extended theoretical model is presented which was originally intended to explain the intensity overshoot of the high frequency enhanced plasma line (HFPL). The extension takes into consideration the fact that nonresistant heating of plasma electrons by the parametrically excited Langmuir waves can yield an apparent increment in electron temperature. It is pointed out that the HFPLs refer to the radar echoes at frequencies near the sum and difference of the radar frequency and the HF heater wave frequency. It is suggested that backscatter of radar signals from plasma waves having a wavenumber of 18/m cause the enhanced spectral lines.
Document ID
19910031771
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Kuo, S. P.
(Polytechnic Univ. Farmingdale, NY, United States)
Ho, A. Y.
(Polytechnic University Farmingdale, NY, United States)
Lee, M. C.
(MIT Cambridge, MA, United States)
Date Acquired
August 15, 2013
Publication Date
November 1, 1990
Publication Information
Publication: Geophysical Research Letters
Volume: 17
ISSN: 0094-8276
Subject Category
Geophysics
Accession Number
91A16394
Funding Number(s)
CONTRACT_GRANT: AF-AFOSR-88-0127
CONTRACT_GRANT: NAG5-1055
CONTRACT_GRANT: NSF ATM-88-16467
Distribution Limits
Public
Copyright
Other

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