Study on Airborne High Spectral Resolution Lidar Detecting Optical properties and Pollution of Atmospheric Aerosol

Shouzheng Zhu; Lingbing Bu; Jiqiao Liu; Qin Wang; Juxin Yang; Yang Zhang; Xiaopeng Zhu; Weibiao Chen

doi:10.3788/CJL202148.1710003

Chinese Journal of Lasers, Volume. 48, Issue 17, 1710003(2021)

Study on Airborne High Spectral Resolution Lidar Detecting Optical properties and Pollution of Atmospheric Aerosol

Shouzheng Zhu^1,2, Lingbing Bu^1、*, Jiqiao Liu², Qin Wang¹, Juxin Yang², Yang Zhang³, Xiaopeng Zhu², and Weibiao Chen²

¹Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science & Technology, Nanjing, Jiangsu 210044, China;

²Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

³Shanghai Institute of Satellite Engineering, Shanghai 201109, China

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Figures & Tables(12)

Fig. 1. Images of different surface types taken by camera. (a) mount; (b) town; (c) ocean

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Fig. 2. Receiving system of aerosol channels

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Fig. 3. Comparsion between AOD values retrieved by HSRL system and those measured by satellite remote sensor on different dates. (a1)(b1) 2019-03-04; (a2)(b2) 2019-03-11; (a3)(b3) 2019-03-14; (a4)(b4) 2019-03-16; (a5)(b5) 2019-03-18; (a6)(b6) 2019-03-19

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Fig. 4. Correlations and absolute biases between AOD values retrieved by HSRL system and those measurd by CE318 and satellite remote sensor. (a)(c) HSRL system and CE318; (b)(d) HSRL system and satellite remote sensor

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Fig. 5. AOD values retrieved by HSRL system at different dates

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Fig. 6. Aerosol distribution on March 4, 2019. (a) ABC distribution; (b) DR distribution

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Fig. 7. Distributions of aerosol parameters on March 4, 2019. (a) ABC at wavelength of 1064 nm; (b) ABC at wavelength of 532 nm; (c) AEC at wavelength of 532 nm; (d) DR at wavelength of 532 nm; (e) LR at wavelength of 532 nm; (f) CR at wavelength of 532 nm

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Fig. 8. Vertical profiles of aerosol parameters at wavelength of 532 nm, in which shadow is standard deviation at each height. (a1)--(a5) 2019-03-04; (b1)--(b5) 2019-03-11; (c1)--(c5) 2019-03-18; (d1)--(d5) 2019-03-19

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Fig. 9. DR, LR, and CR values on different dates. (a1)--(a3) 2019-03-04; (b1)--(b3) 2019-03-11; (c1)--(c3) 2019-03-18;(d1)--(d3) 2019-03-19

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Table 1. Schedule of flight experiment
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Table 1. Schedule of flight experiment
Date Begin time End time Flight height /km
2019-03-04 10:23 14:11 4
2019-03-11 10:20 15:04 5
2019-03-14 10:15 13:30 7
2019-03-16 10:16 13:49 8
2019-03-18 10:18 14:56 4
2019-03-19 10:09 14:38 5

Table 2. Main parameters of HSRL system

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Table 2. Main parameters of HSRL system

Parameter	Value
Wavelength /nm	532.245
Laser energy /mJ	21
Laser pulse width /ns	15
Pulse repeat frequency /Hz	40
Telescope aperture /mm	150
Beam divergence angle /mrad	0.16
Field of view /mrad	1
Filter bandwidth /nm	0.35
Filter transmittance /%	80
Sampling rate of data acquisition card /MHz	250
Resolution of data acquisition card /bit	14

Table 3. Weather conditions in Qinhuangdao at different dates

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Table 3. Weather conditions in Qinhuangdao at different dates

Date	AQI	Weather	Temperature	Wind direction	Wind scale
2019-03-04	174	Cloudy	0℃~11℃	Sourthwest	2--3
2019-03-11	80	Sunny	-2℃~14℃	Northwest	3--4
2019-03-14	60	Sunny	-1℃~11℃	Northwest	2--3
2019-03-16	57	Cloudy to sunny	-2℃~14℃	Northwest	2--3
2019-03-18	120	Cloudy to sunny	4℃~18℃	Sourthwest	3--4
2019-03-19	139	Cloudy	7℃~17℃	Sourthwest	3--4

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Shouzheng Zhu, Lingbing Bu, Jiqiao Liu, Qin Wang, Juxin Yang, Yang Zhang, Xiaopeng Zhu, Weibiao Chen. Study on Airborne High Spectral Resolution Lidar Detecting Optical properties and Pollution of Atmospheric Aerosol[J]. Chinese Journal of Lasers, 2021, 48(17): 1710003

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