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Solar-Activity Index for the E-Layer Critical Frequency at Middle Latitudes |
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| Authors: | Deminov M. G. |
| Affiliation: | 1.Pushkov Institute of Terrestrial Magnetism, Ionosphere, and Radio Wave Propagation, 108840, Troitsk, Moscow, Russia ; |
| Abstract: | Geomagnetism and Aeronomy - Based on an analysis of data from the midlatitude ionospheric stations, it is found that the P = 0.5(F1 + F81) index is an optimal solar-activity index for the daily... |
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