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Comparison of Ionospheric Parameters during Similar Geomagnetic Storms

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Abstract

The degree of closeness of ionospheric parameters during one magnetic storm and of the same parameters during another, similar, storm is estimated. Overall, four storms—two pairs of storms close in structure and appearance according to recording of the magnetic field Х-component—were analyzed. The examination was based on data from Sodankyla observatory (Finland). The f-graphs of the ionospheric vertical sounding, magnetometer data, and riometer data on absorption were used. The main results are as follows. The values of the critical frequencies foF2, foF1, and foE for different but similar magnetic storms differ insignificantly. In the daytime, the difference is on average 6% (from 0 to 11.1%) for all ionospheric layers. In the nighttime conditions, the difference for foF2 is 4%. The nighttime values of foEs differ on average by 20%. These estimates potentially make it possible to forecast ionospheric parameters for a particular storm.

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Authors and Affiliations

  1. St. Petersburg State University of Aerospace Manufacturing Instrumentation, St. Petersburg, 190000, Russia

    D. V. Blagoveshchensky

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  1. D. V. Blagoveshchensky
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Correspondence to D. V. Blagoveshchensky.

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Original Russian Text © D.V. Blagoveshchensky, 2018, published in Geomagnetizm i Aeronomiya, 2018, Vol. 58, No. 2, pp. 217–224.

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Blagoveshchensky, D.V. Comparison of Ionospheric Parameters during Similar Geomagnetic Storms. Geomagn. Aeron. 58, 207–213 (2018). https://doi.org/10.1134/S0016793218020032

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  • DOI: https://doi.org/10.1134/S0016793218020032

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