The state of mid-latitude thermosphere retrieved from ionosonde and Swarm satellite observations during geomagnetic storms in February 2022 | Journal of Space Weather and Space Climate

Topical Issue - Swarm 10-Year Anniversary

Open Access

Figure 3

Diurnal variations of foF₂ in the American longitudinal sector during the February 01–09, 2022 period. Solid pink curve – monthly median foF₂. Vertical blue line – the moment of SpaceX launch. 3-hour ap indices (bottom panel) are given for the convenience of discussion.

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