Abstract

A nonlinear theory determining for the first time the conditions for existence and the structure of the stationary striations generated in the ionospheric modifications by powerful radio waves is developed. A strong enhancement of the electron temperature inside the striations is predicted. A considerable change of the amplitude of striations and its dramatic diminishing in the narrow region near the electron cyclotron resonance is established. The structure of the density depletions and its characteristic length, width and depth are shown to be in agreement with the observations.

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