Liangliang CHENG, Chenbo XIE, Hao YANG, Zhiyuan FANG, Min ZHAO, Xu DENG, Bangxin WANG, Kunming XING. Observation and Analysis of a Haze Pollution Event in Beijing by Spaceborne and Ground-based Lidars[J]. Acta Photonica Sinica, 2022, 51(3): 0301001
- Acta Photonica Sinica
- Vol. 51, Issue 3, 0301001 (2022)
Fig. 1. Lidar structure diagram
Fig. 2. Flow chart of pollution analysis based on multi-source sensor data
Fig. 3. Time series of PM2.5，PM10 concentration and PM2.5/PM10
Fig. 4. Spatial-temporal variation of lidar extinction coefficient and lidar range-corrected signal and planetary boundary layer height during observation period
Fig. 5. The 48 h backward trajectory by HYSPLIT during the pollution period
Fig. 6. Time series of PM2.5concentration in Zhengzhou and Baoding on January 11-14，2015
Fig. 7. MODIS remote sensing true color image （UTC time）
Fig. 8. The 550 nm AOD observed by MODIS remote sensing （UTC time）
Fig. 9. Total backscatter coefficient，vertical feature mask，and aerosol subtype observed during CALIPSO transits over Beijing
Fig. 10. PM2.5 concentration and ground meteorological parameters on January 11-17，2015
Fig. 11. Temperature variation at different altitudes in Beijing during January 12-15，2015 at 0：00
Fig. 12. Concentration of pollutant gas and planetary boundary layer height from January 11-17，2015
Fig. 13. Linear fitting chart of PM2.5 and NO2，CO on January 11-17，2015
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Table 1. Comparison of ground-based and spaceborne lidar parameters
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