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Errors in Estimating of the F2-Layer Peak Parameters in Automatic Systems for Processing the Ionograms in the Vertical Radio Sounding of the Ionosphere under Low Solar Activity Conditions

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Abstract—

The article analyzes the errors in estimating the parameters of the main ionospheric maximum, plasma frequency foF2 and its height hmF2, by automated systems for processing the vertical radio sounding data of the ionosphere at the IZMIRAN station in 2018, during a period of low solar activity. It considers the results of the two most commonly used programs that scale observatory registrations of the ionosphere state, ARTIST 5, part of the DPS-4 ionosonde (DPS–ARTIST complex), and Autoscala 5.1, adapted for the Parus-A ionosonde (Parus–Autoscala complex). An independent system for analyzing ionograms from the Parus-A ionosonde by an operator is used as an etalon in comparing the results. It is shown that the foF2 estimates by both automated systems are sufficiently reliable with a standard deviation of 0.1 MHz. The errors in hmF2 estimation differ significantly and are characterized by a general negative bias, depending on the year’s season, and are most significantly expressed in the local noontime. The statistical values of the hmF2 deviations, in the common case, are significantly larger for the DPS–ARTIST system and are principally close to the results of the comparison with the Millstone Hill incoherent scatter radar data.

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Authors and Affiliations

  1. Institute of Terrestrial Magnetism, Ionosphere, and Radio Wave Propagation, Russian Academy of Sciences, Moscow, Russia

    I. V. Krasheninnikov & L. N. Leshchenko

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  1. I. V. Krasheninnikov
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  2. L. N. Leshchenko
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Correspondence to I. V. Krasheninnikov.

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Translated by O. Pismenov

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Krasheninnikov, I.V., Leshchenko, L.N. Errors in Estimating of the F2-Layer Peak Parameters in Automatic Systems for Processing the Ionograms in the Vertical Radio Sounding of the Ionosphere under Low Solar Activity Conditions. Geomagn. Aeron. 61, 703–712 (2021). https://doi.org/10.1134/S0016793221050078

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