We present an extension of the analysis of our previously proposed model for auroral kilometric radiation, in which the full three-wave dynamics is considered. The temporal variation of the electrostatic ion cyclotron density fluctuations and the effect of a finite three-wave coupling coefficient, both effects ignored in our steady state theory, are included here. This yields a set of coupled three-wave kinetic equations, which are solved numerically for the evolution ...
Plasma line observations obtained from incoherent radar backscatter have been used as a groundbased method for deriving information about the size and anisotropy of the ionospheric photoelectron fluxes. In the past data interpretation has been confined to altitudes above the F2 peak. Measurements below the F2 peak consistently show an anisotropy in the ratio of the downshifted to upshifted amplitudes of 20-50% when it is generally assumed that diffusion processes ...
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