TEC and foF2 variations: preliminary results

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S. S. Kouris
T. D. Xenos
K. V. Polimeris
D. Stergiou


Investigation of the relationship between TEC and (foF2)2 shows that although they are highly correlated, a «hysteresis» effect exists between them. The slab thickness is greater before than after mid-day for equal cos ?values. Moreover, a comparison of the calculated upper and lower quartiles of variability in TEC, foF2 and Nmax, respectively shows that the variability of TEC lies between those of foF2 and Nmax depending on the level of solar activity.

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Kouris SS, Xenos TD, Polimeris KV, Stergiou D. TEC and foF2 variations: preliminary results. Ann. Geophys. [Internet]. 2004Dec.25 [cited 2022May25];47(4). Available from: https://www.annalsofgeophysics.eu/index.php/annals/article/view/3346

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