Statistical Distribution of Extinction Coefficients of Tropospheric Aerosols Detected by Lidar

Xiaomin Ma; Zongming Tao; Huihui Shan; Hui Zhang; Lina Bao; Ning Wei; Mogen Xue; Xiaolin Luo; Dong Liu; Yingjian Wang

doi:10.3788/AOS202040.1101003

Acta Optica Sinica, Volume. 40, Issue 11, 1101003(2020)

Statistical Distribution of Extinction Coefficients of Tropospheric Aerosols Detected by Lidar

Xiaomin Ma^1,2,3,4, Zongming Tao^4、*, Huihui Shan⁴, Hui Zhang⁴, Lina Bao⁴, Ning Wei⁴, Mogen Xue⁵, Xiaolin Luo⁵, Dong Liu^1,2, and Yingjian Wang^1,2

Author Affiliations

¹Key Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, Anhui 230031, China

²Anhui Laboratory of Advanced Laser Technology, Hefei, Anhui 230037, China

³Science Island Branch of Graduate School, University of Science and Technology of China, Hefei, Anhui 230026, China

⁴Department of Basic Sciences, Army Academy of Artillery and Air Defense, Hefei, Anhui 230031, China

⁵Department of Information Engineering, Army Academy of Artillery and Air Defense, Hefei, Anhui 230031, China

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Figures & Tables(8)

Fig. 1. Diagram of combined detection system

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Fig. 2. Profiles of near-ground aerosol extinction coefficient

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Fig. 3. Continuous measurement results under 39 hours. (a) Spatiotemporal distribution of near-ground aerosol extinction coefficient profiles; (b) PM_2.5 mass concentration and aerosol extinction coefficient curves at ground; (c) relative humidity and aerosol extinction coefficient curves at ground

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Fig. 4. Comparison of aerosol extinction coefficient profiles retrieved from empirical and measured data. (a) s₁=120 sr; (b) s₁=80 sr; (c) s₁=55 sr; (d) s₁=40 sr

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Fig. 5. Average LR versus month

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Fig. 6. Profiles of aerosol extinction coefficients. (a) Monthly average; (b) seasonal average; (c) annual average

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Table 1. List of experimental time distribution

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Table 1. List of experimental time distribution

Date	Number of nights	Date	Number of nights	Date	Number of nights	Date	Number of nights
2017.01	4	2017.07	2	2018.01	2	2018.07	7
2017.02	3	2017.08	2	2018.02	2	2018.08	11
2017.03	3	2017.09	6	2018.03	5	2018.09	8
2017.04	3	2017.10	12	2018.04	6	2018.10	5
2017.05	12	2017.11	12	2018.05	4	2018.11	8
2017.06	8	2017.12	11	2018.06	8	2018.12	2

Table 2. Optical depths corresponding to examples in Fig.4
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Table 2. Optical depths corresponding to examples in Fig.4
Figure From empirical LR From measured LR Relative error /%
Fig. 4(a) 0.554 0.815 32.5
Fig. 4(b) 0.612 0.743 17.6
Fig. 4(c) 0.392 0.416 5.7
Fig. 4(d) 0.213 0.184 18.5

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Xiaomin Ma, Zongming Tao, Huihui Shan, Hui Zhang, Lina Bao, Ning Wei, Mogen Xue, Xiaolin Luo, Dong Liu, Yingjian Wang. Statistical Distribution of Extinction Coefficients of Tropospheric Aerosols Detected by Lidar[J]. Acta Optica Sinica, 2020, 40(11): 1101003

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