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Fig. 12 | Earth, Planets and Space

Fig. 12

From: Improving the estimation of thermospheric neutral density via two-step assimilation of in situ neutral density into a numerical model

Fig. 12

The densities along the GRACE and CHAMP orbit were interpolated from the assimilated TIE-GCM and the open-loop simulation. Additionally, the (calibrated) NRLMSIS 2.0 was evaluated along the corresponding orbits. This figure shows the histograms of these three time series reduced by the accelerometer-derived densities. The histograms were calculated over the 14-day period of the experiment

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