Comparison between thermospheric neutral density and ionospheric electron density from TIEGCM and empirical models

The precise knowledge of the density within the atmospheric layers is important in many applications, e.g. positioning, navigation and satellite orbit determination. In this contribution, the neutral density is considered for analysis of the thermosphere characterization using Thermosphere Ionosphere Electrodynamics General Circulation Model (TIEGCM) software and compared with the neutral densities derived from empirical models such as NRLMSISE, JB2008. Different empirical models use slightly different (but comparable) input configurations of space weather conditions. This leads to the fact that even among different empirical models, there are minor differences in the magnitude of both the neutral density under moderate space weather conditions. It is widely known that during high solar weather conditions, there is variation of the neutral density in the thermosphere with height. Neutral density derived from two empirical models are compared for quiet time and storm time scenarios. Additionally neutral density and electron densities are compared from a physics-based model.     «

The precise knowledge of the density within the atmospheric layers is important in many applications, e.g. positioning, navigation and satellite orbit determination. In this contribution, the neutral density is considered for analysis of the thermosphere characterization using Thermosphere Ionosphere Electrodynamics General Circulation Model (TIEGCM) software and compared with the neutral densities derived from empirical models such as NRLMSISE, JB2008. Different empirical models use slightly di...     »