0 relating to the ionosphere (= the part of the earth's atmosphere from about 60 kilometres to about 1,000 kilometres above the surface):
The fade-out of radio communications was caused by ionospheric activity.
The ability to forecast ionospheric conditions is related to solar activity.
In an inhomogeneous ionospheric plasma, there are three particular regions where the strongest excitations of electrostatic waves are expected.
The accelerated electrons can ionize neutral gas when they are precipitated into the ionosphere, and then the ionospheric plasma density is increased in time.
Our conclusion is based on the assumption that the ionospheric turbulence in the heated volume does not influence the longitudinal diffusion of striations.
This surface is mapped along field lines into the ionosphere, into the region of the main ionospheric trough.
It is possible to expect that, in real ionospheric conditions, the typical magnitude of the growth rate is between these two limiting values.
Nonlinear evolution of whistler waves is widely observed in many ionospheric and magnetospheric phenomena.
Therefore, the fraction of the total density in the acceleration region consisting of ionospheric electrons is not changed.
Another case resembling this situation is the propagation of intense radio waves through an ionospheric plasma.
