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Figure 9


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Time series of σ Φ (black) for every GPS satellite in view with elevation >30° as observed from the receivers at (a) MZS0P, (b) SAN0P, (c) DMC0P, (d) and NYA0P and of the corresponding IPIR index (red) from auroral model (panels a–d) and polar cap model (e–h), for the period 5–10 September 2017.

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