Fig. 1. Schematic of infrared limb radiance measurement of middle and upper atmosphere

Fig. 2. Limb radiance profiles at different CO2 spectral bands. (a) 4.3 μm; (b) 2.7 μm

Fig. 3. Time evolution of limb radiance at CO2 4.3 μm for 100 km tangent altitude

Fig. 4. Limb radiance profiles at different CO2 spectral bands. (a) 15 μm; (b) 10 μm

Fig. 5. Limb radiance profiles at NO+ 4.3 μm and its contribution percentage in total auroral enhancement. (a) Radiance profile; (b) contribution percentage

Fig. 6. Spectra of limb radiance at CO2 and NO+ 4.3 μm for 100 km tangent altitude

Fig. 7. Time evolution of limb radiance at NO+ 4.3 μm for 100 km tangent altitude

Fig. 8. Limb radiance profiles at different NO spectral bands. (a) 5.3 μm; (b) 2.7 μm

Fig. 9. Spectra of limb radiance at different NO spectral bands for 110 km tangent altitude. (a) 5.3 μm; (b) 2.7 μm

Fig. 10. Time evolution of limb radiance at different NO spectral bands for 110 km tangent altitude. (a) 5.3 μm; (b) 2.7 μm

Fig. 11. Comparison between simulated and measurement data of SABER event