Emphasis will be on the energetics and dynamics of the neutral atmosphere. Latitudinal variations are formulated in terms of spherical harmonics which serves also to disseminate the results in compact form.
Figures show preliminary results for seasonal variations, equatorial oscillations and diurnal tide.
Figure 1 Seasonal variations in temperature and zonal winds. Figure 2 Zonal wind equatorial oscillations driven by small scale gravity waves. Considering auroral Joule heating and electric field momentum source, transfer functions are computed in advance. For chosen source configuration, thermospheric responses in temperature, composition and wind fields are then derived virtually instantaneously, to describe the global scale variations and gravity waves, including those reflected from the Earth's surface and ducted through the lower atmosphere. Figure shows computed temperature perturbation at 300 km due to impulsive, auroral Joule heating.