Fig. 12From: Improving the estimation of thermospheric neutral density via two-step assimilation of in situ neutral density into a numerical modelThe 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 experimentBack to article page