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Earth, Planets and Space
Fig. 5 | Earth, Planets and Space

Fig. 5

From: Assessing the performance of a Northeast Asia Japan-centered 3-D ionosphere specification technique during the 2015 St. Patrick’s day geomagnetic storm

Fig. 5

A plot of time-density profiles following the Swarm satellites orbital paths, shown as red traces on the map in the upper right corner of each subplot. (Row subplots) Cover DOYs 076, 077, 078 in 2015. (Column subplots) Top, middle and bottom represent Swarm A, B and C, respectively. Black, blue and red represent IRI, reconstructed and Swarm in situ densities, respectively. In each subplot, vertical dashed lines show the start (green) and end (magenta) of grouped densities with time data gaps less than 1 h. Gray curved arrows match each grouped densities to the Swarm data time range, listed on the far right. The x-axis in each subplot is readjusted depending on the number of available grouped densities. Column-wise: top, middle and bottom panels correspond to Swarm Alpha (A), Charlie (C) and Bravo (B), respectively. Row-wise: right, middle and left subplots correspond to day of year 076, 077 and 078, respectively, when storm effects were eminent

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