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

Fig. 2

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

Fig. 2

External forcing time series during the period of the experiment required to run the NRLMSIS 2.0 and TIE-GCM. A Kp value greater than or equal to five is considered as storm. The main storm event is at 5th April from 6:00 to 18:00 UTC+0. The temporal resolution of the F10.7 index and Kp index is one day and three hours, respectively. The solar wind and the z component of the interplanetary magnetic field are taken form the OMNI data set and have a 1-min resolution

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