Fig. 1. Landform and location of meteorological stations in Yuncheng

Fig. 2. Vertical profiles of aerosol extinction coefficients and their standard deviations on haze and clear days

Fig. 3. Vertical profiles of near-surface aerosol extinction coefficients and their standard deviations during the haze day and night

Fig. 4. Altitude-orbit cross-section of 532 nm total attenuated backscattering intensity on a typical haze day (October 29, 2019) in Yuncheng area

Fig. 5. Frequencies of 532 nm total attenuated backscattering coefficients at different heights on haze and clear days. (a) Haze day; (b) clear day

Fig. 6. Frequency distributions of volume depolarization ratios at different heights on haze and clear days. (a) Haze day; (b) clear day

Fig. 7. Frequency distributions of color ratios at different heights on haze and clear days. (a) Haze day; (b) clear day