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Detailed Reference Information |
Forme, F.R.E. (1993). A new interpretation on the origin of enhanced ion acoustic fluctuations in the upper ionosphere. Geophysical Research Letters 20: doi: 10.1029/93GL02490. issn: 0094-8276. |
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Enhanced ion acoustic fluctuations have been recently observed by incoherent scatter radars in the upper ionosphere. Here it is suggested that these fluctuations can be due to the Langmuir wave decay L→L'+S. In this process the ''pump'' Langmuir waves (L) are produced by a beam instability due to streaming soft electrons. Those waves then produce backscattered Langmuir waves (L') and ion acoustic waves (S). Estimations of the required electron beam energy and flux, as well as the beam number density are given. It is found that satellite and rocket observations support this interpretation. ¿ American Geophysical Union 1993 |
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Abstract |
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Keywords
Ionosphere, Auroral ionosphere, Ionosphere, Particle precipitation, Ionosphere, Plasma waves and instabilities, Space Plasma Physics, Wave-wave interactions |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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