Spatial and Temporal Variability of Aerosol Vertical Distribution Based on Lidar Observations: A Haze Case Study over Jinhua Basin

Figure 2

The altitude-orbit cross section of attenuated backscatter at 532 nm and accordingly PBLH, visibility level at 13:00 (local time), December 24, 2013 (Figure 2(a) gave the altitude-orbit cross section of attenuated backscatter at 532 nm with respective PBLH and visibility level 13:26 PM, December 24, 2013, at Jinhua). Blue region in the bottom represents surface height, and pink-yellow-gray colors show the different degrees of aerosol extinction. The black line in Figure 2(b) is the horizontal visibility along the orbit. Visibility level is defined as follows: level 3 indicates the visibility range in 3–5 km, level 4 indicates the visibility between 5 and 10 km, and level 5 indicates the visibility larger than 10 km.