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Statistical modeling of relative variations in the critical frequencies of the ionospheric F region |
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| Authors: | Yu K Kalinin N P Sergeenko A L Dzvonkovskaya V A Kuznetsov T D Platonov V V Velichko |
| Institution: | 1. Institute of Applied Geophysics, Rostokinskaya ul. 9, Moscow, 129128, Russia 2. Pushkov Institute of Terrestrial Magnetism, Ionosphere, and Radiowave Propagation, Russian Academy of Sciences, Troitsk, Moscow oblast, 142190, Russia 3. Long-Range Radio Communication Research Institute, Pervaya Bukhvostova ul. 12/11, Moscow, 107258, Russia |
| Abstract: | Relative variations in the critical frequency of the ionospheric F, region are considered as one of the main sources of information about the characteristics of plasma inhomogeneities in the region of the main ionization maximum and as a substantial factor responsible for the statistics of the decameter signal parameters on radio paths with different lengths. The functions defined on finite intervals are also used in statistical modeling in addition to the available methods. Such a consideration made it possible to remove a restriction, peculiar to previous models, in the form of the requirement that the fourth statistical invariant—excess— should be positive. This makes the generalized statistical model more universal, which is of special importance for high4atitude radio paths. The specified mo del more adequately corresponds to the experimental data, which are characterized by finite intervals where the quantities are measured. |
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