We present the results of measuring characteristics of the ionosphere and neutral atmosphere by the method of resonant scattering of radio waves by artificial periodic irregularities of the ionospheric plasma in the altitude range 90-120 km. It is shown that the altitude-time variations of the measured characteristics are in many respects stipulated by the propagation of atmospheric waves. Hydrodynamic instabilities in the mesosphere -lower thermosphere are analyzed. Criteria of development of different-type instabilities are presented. Contribution of different processes to the dynamics of the medium is estimated on the basis of the measurement results.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.