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Earth, Planets and Space
Fig. 2 | Earth, Planets and Space

Fig. 2

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

Fig. 2

a, b The same as in a, b of Fig. 1 but from 17 to 21 UT on 2018 February 20. c, d The zonal and meridional components of the ion velocity measured with the Tromsø Dynasonde from 17 to 21 UT on 2018 February 20 (positive eastward and northward, respectively). The measurement uncertainty (± 1σ) is illustrated by vertical bars

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