Fig. 1. Photochemical reaction process of O₂(a¹Δ_g) airglow

Fig. 2. Contributions of different generation mechanisms to O₂(a¹Δ_g) airglow

Fig. 3. Flow chart of retrieval of ozone profile from limb radiance

Fig. 4. Geometric perspective of satellite limb observation

Fig. 5. O₂ airglow spectral radiation intensity at different tangent heights. (a) Initial spectral intensities of airglow radiation in O₂(a¹∆_g) band at different limb heights observed by SCIAMACHY instrument; (b) spectral intensity of pure airglow radiation in O₂(a¹∆_g) band at different limb heights after subtracting atmospheric scattering background; (c) radiation efficiencies of O₂(a¹∆_g) band airglow spectra of different target layers after “onion peeling” algorithm; (d) initial spectral intensities of airglow radiation in O₂(b¹∑g+) band at different limb heights observed by SCIAMACHY instrument; (e) spectral intensity of pure airglow radiation in O₂(b¹∑g+) band at different limb heights after subtracting atmospheric scattering background; (f) radiation efficiencies of O₂(b¹∑g+) band airglow spectra of different target layers after “onion peeling” algorithm

Fig. 6. Vertical distributions of number densities of O₂ molecules in b¹∑g+ and a¹∆_g states at different latitudes. (a) Vertical distributions of molecular number densities in O₂(b¹∑g+) state; (b) vertical distributions of molecular number densities in O₂(a¹∆_g) state

Fig. 7. Comparison results, mean, absolute residual, and relative deviation of SCIAMACHY ozone profile retrieval results at intersection of time and space with SABER ozone product data. (a) March 2, 2011; (b) June 1, 2011; (c) September 12, 2011; (d) November 22, 2011

Fig. 8. Latitudinal comparisons of SCIAMACHY ozone mixing ration retrieval results with MIPAS ozone product data at the same observation orbit. (a) SCIAMACHY ozone mixing ration retrieval results in latitude direction on April 7, 2011; (b) MIPAS ozone mixing ration in latitude direction on April 7, 2011; (c) relative deviation of ozone mixing ration between SCIAMACHY and MIPAS in latitude direction on April 7, 2011; (d) SCIAMACHY ozone mixing ration retrieval results in latitude direction on November 22, 2011; (e) MIPAS ozone mixing ration in latitude direction on November 22, 2011; (f) relative deviation of ozone mixing ration between SCIAMACHY and MIPAS in latitude direction on November 22, 2011

Fig. 9. Consistency analysis of SCIAMACHY ozone mixing ratioretrieval results with MIPAS ozone product data. (a) 47073 track on March 2, 2011; (b) 48381 track on June 1, 2011; (c) 49861 track on September 12, 2011; (d) 50881 track on November 22, 2011

Fig. 10. Statistical analysis of SCIAMACHY ozone mixing ratioretrieval results with MIPAS ozone product data in terms of horizontal and vertical. (a) Latitude coverage percentage; (b) height coverage