Fig. 8


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Ionosonde measurements on 8th September 2017, at Juliusruh (54.6° N, 13.4° E, left panels) and Pruhonice (50.0° N, 14.6° E, right panels). Top: critical frequency foF2 and spread F parameter FF. Bottom: Height of F2-layer hmF2 and equivalent slabthickness τ.

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