Propagation of Pulses of Acoustic Gravity Waves in the Atmosphere and Their Passage Through Layers with the Given Temperature Distribution

As applied to experimental measurements of the parameters of the neutral component in the Earth’s ionosphere, the propagation of quasi-harmonic pulses of acoustic gravity waves (AGWs) of limited duration in an isothermal atmosphere is analyzed. A criterion for weak distortions of impulse signals during their propagation over long distances is obtained. The reflection and refraction of such pulses by atmospheric layers with a parabolic dependence of the equilibrium temperature in them on height are also considered. It is shown that, under certain conditions, AGW pulses can propagate without distortion over long distances.