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Behavior characteristics of the index of middle-latitude F-spread

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Abstract

We present the results of analysis of data on ionospheric vertical sounding in Zimenki (Nizhny Novgorod) over the period from 1964 to 1992. The January ionograms are used for constructing the plots of daily indices of F-spread for an ionospheric layer. The dependence of the average monthly (January) index of F-spread on the solar activity is obtained. The index of F-spread is found to grow with time. The technogenic nature of this increase is assumed.

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Authors
  1. F. I. Vybornov
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  2. E. E. Mityakova
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  3. A. V. Rakhlin
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Additional information

Radiophysical Research Institute, Nizhny Novgorod, Russia. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 40, No. 3, pp. 322–327, March, 1997.

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Vybornov, F.I., Mityakova, E.E. & Rakhlin, A.V. Behavior characteristics of the index of middle-latitude F-spread. Radiophys Quantum Electron 40, 206–209 (1997). https://doi.org/10.1007/BF02676344

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  • DOI: https://doi.org/10.1007/BF02676344

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