Fig. 1. Distribution of lidar network in Zhejiang province, device of lidar and microwave radiometer. (a) Distribution of lidar network; (b) lidar; (c) microwave radiometer

Fig. 2. Mass concentrations of PM₁₀ retrieved by lidar and real time observation as well as vertical distributions of wet extinction and dry extinction. (a) Mass concentrations of PM₁₀ retrieved by lidar and real time; (b) vertical distributions of wet extinction and dry extinction

Fig. 3. Original column concentration, total column concentration, and net input column concentration of PM₁₀ and PM_2.5 in Zhejiang province during dust process from April 10 to 14, 2023. (a) Original PM₁₀ column concentration; (b) total PM₁₀ column concentration; (c) input PM₁₀ column concentration; (d) original PM_2.5 column concentration; (e) total PM_2.5 column concentration; (f) input PM_2.5 column concentration

Fig. 4. Curve charts of PM₁₀ and PM_2.5 mass concentrations and PM_2.5/PM₁₀ ratio as well as contour plots of depolarization ratio retrieved by lidars in Hangzhou and Jinhua from April 10 to 14, 2023. (a) PM₁₀ and PM_2.5 mass concentrations and PM_2.5/PM₁₀ ratio in Hangzhou; (b) depolarization ratio in Hangzhou; (c) PM₁₀ and PM_2,5 mass concentrations and PM_2.5/PM₁₀ ratio in Jinhua; (d) depolarization ratio in Jinhua

Fig. 5. Vertical distribution of air temperature and water vapor density observed by microwave radiometer in Hangzhou from April 10 to 14, 2023. (a) Air temperature; (b) water vapor density

Fig. 6. Changes of hourly content of ozone, NO₂, and SO₂ as well as CO₂ and CH₄ in Hangzhou from April 10 to 14, 2023. (a) Ozone, NO₂, and SO₂ mass concentration; (b) CO₂ and CH₄ volume fraction