Computer Science
Scientific paper
Jul 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977kosis..15..628b&link_type=abstract
Kosmicheskie Issledovaniia, vol. 15, July-Aug. 1977, p. 628-630. In Russian.
Computer Science
Ionospheric Disturbances, Ionospheric Electron Density, Ionospheric Propagation, Magnetic Equator, Nonuniform Plasmas, Scintillation, Discontinuity, Diurnal Variations, Geomagnetic Pulsations, Ionospheric Composition, Scientific Satellites, Synchronous Satellites
Scientific paper
The presence of discontinuities in the ionospheric plasma has a strong influence on the propagation of radio waves. Wave scattering by discontinuities leads to fluctuations of the amplitudes and phases of radio signals (known as scintillations). By analyzing the scintillations one can obtain information on the statistical properties of ionospheric discontinuities and their dynamics. In the present paper, the scintillation (defined by the fluctuation of the intensity of a radio wave's electric field) is taken as a quantitative measure of ionospheric scintillations. The procedure used to calculate the scintillation coefficient is described, and the averaged diurnal dependence of this coefficient over a period of two summer months in 1974 is plotted, showing that a relatively high level of radio-signal amplitude fluctuations (with distinct nighttime and midday maxima) may be always observed at equatorial latitudes.
Bakai A. S.
Romanova V. I.
Sinelnikov V. M.
Solodovnikov G. K.
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