Artificial periodic irregularities, wave phenomena in the lower ionosphere, and the sporadic E layer

• Published in: Radiophysics and quantum electronics Vol. 53; no. 2; pp. 69 - 81
• Main Authors: Bakhmet’eva, N. V., Belikovich, V. V., Egereva, M. N., Tolmacheva, A. V.
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01.07.2010; Springer
• Subjects: Astronomy; Astrophysics and Astroparticles; Atmosphere, Upper; Hadrons; Heavy Ions; Ionosphere; Lasers; Mathematical and Computational Physics; Nuclear Physics; Observations and Techniques; Optical Devices; Optics; Photonics; Physics; Physics and Astronomy; Quantum Optics; Theoretical; Scattered Signal; Vertical Velocity; Lower Ionosphere; Internal Gravity Wave; Relaxation Time
• ISSN: 0033-8443; 1573-9120
• DOI: 10.1007/s11141-010-9210-3

We present new results of studying the artificial periodic irregularities produced in the ionosphere by the radio emission of the high-power heating facility “Sura” during the period of observations of the sporadic E layer. Basing on the measurement results for the velocity of the vertical plasma motion and the electron profile density in the E region of the ionosphere, which were obtained by the method of resonance scattering of radiowaves by an artificially produced periodic structure, we analyze the possibility to produce a sporadic E layer by driving metal ions affected by the vertical shear of the velocity, which occurs at these altitudes due to the propagation of internal gravity waves. The parameters of these waves are evaluated, as well as the mass and concentration of metal ions in the sporadic E layer.