Journal ArticleDOI
Stimulation of the Harris instability in the ionosphere
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In this article, the interpretation of diffuse signals at the lower harmonics of the electron cyclotron frequency is discussed, attributed to the stimulation of Harris instabilities of longitudinal plasma waves at multiples of the cyclotram frequency in a single electron distribution, and the cause of these instabilities is the large electron velocity anisotropy which results from collisionless cycloton damping of the energy from the high power sounder pulse.Abstract:
Observations made with a sweep frequency rf sounder on the satellite ISIS 1 in the topside ionosphere are reported, and the interpretation of diffuse signals at the lower harmonics of the electron cyclotron frequency is discussed. These signals are attributed to the stimulation of Harris instabilities of longitudinal plasma waves at multiples of the cyclotron frequency in a single electron distribution. The Harris instability is excited most readily when the frequency is near the midpoint between the harmonics of the cyclotron frequency. The cause of these instabilities is the large electron velocity anisotropy which results from collisionless cyclotron damping of the energy from the high power sounder pulse.read more
Citations
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Journal ArticleDOI
Stimulated plasma waves in the ionosphere
TL;DR: In this paper, a discussion is concerned with longitudinal waves associated with electron motions, which are easily stimulated in the ionosphere by rocket-and satellite-borne RF sounders, and the majority of the observations can be explained by considering the propagation of the sounder-stimulated plasma waves.
Journal ArticleDOI
Stimulated plasma instability and nonlinear phenomena in the ionosphere
TL;DR: In this article, the authors combined the benefits of high-frequency-resolution Alouette 2 analog sounder data with advanced digital graphics techniques to study simulated waveparticle interactions in the ionosphere.
Journal ArticleDOI
Classification of IMAGE/RPI‐stimulated plasma resonances for the accurate determination of magnetospheric electron density and magnetic field values
TL;DR: In this paper, the first evidence for the stimulation of these resonances by a sounder deep in the terrestrial magnetosphere is presented, which suggests the possible widespread occurrence of Ne field-aligned irregularities (FAI) or the ease of sounder-stimulated FAI based on one Dn generation mechanism involving eigen modes of cylindrical plasma oscillations which have been associated with FAI.
Four Decades of Space-Borne Radio Sounding
TL;DR: A review of the 38 rocket, satellite, and planetary payloads dedicated to ionospheric/magnetospheric radio sounding since 1961 is given in this paper, with a focus on the topology of the ionosphere and magnetosphere.
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Physical nature of the diffuse plasma resonances in the ionosphere
TL;DR: In this paper, the spectrum of frequencies should be proportional to n{sup 1/2, n = 1, 2, 3, {hor ellipsis], n = 0.
References
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Reviews of Plasma Physics
TL;DR: In this article, Rozhansky et al. studied the relationship between transverse conductivity and the generation of self-consistent electric fields in strongly ionized magnetized plasma.