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Earth, Planets and Space
Fig. 4 | Earth, Planets and Space

Fig. 4

From: Thermospheric wind response to a sudden ionospheric variation in the trough: event at a pseudo-breakup during geomagnetically quiet conditions

Fig. 4

a Electron density and temperature (cold and warm hues, respectively) measured with the Swarm A (lighter color) and Swarm C (darker color) satellites. b FAC and eastward ion velocity (cold and warm hues, respectively; positive downward and eastward, respectively) measured with the Swarm A (lighter color) and C (darker color) satellites. The latitude at the Swarm measurement is shifted by 0.39–0.28° (dependent on latitudes at 67–74°N) poleward while being mapped down along the magnetic field line from the operation altitude of 435 km to the assumed 630-nm emission height of 250 km. c Swarm A trajectory on the map with time stamp. Locations of the shifted geographical latitudes of 67°and 74°are marked as references

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