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Fig. 3 | Earth, Planets and Space

Fig. 3

From: Improving estimates of the ionosphere during geomagnetic storm conditions through assimilation of thermospheric mass density

Fig. 3

Reference (red) and analysis (blue) regression against observations for normalized to 400 km thermospheric mass density results of a Swarm-B and b Swarm-C. The regression fit (straight line) is represented with its confidence interval (shadowed area). The correlation coefficient (R\(_r\), R\(_a\)) improves from 0.6 to 0.8 in both satellites. The RMSE improvement (c) separated by storm phase and satellite (Swarm-B in blue and Swarm-C in red) exhibit an increase with the storm phases from 18% during the quiet day to 55% for the recovery phase

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