Combined Observation of Aerosol Vertical Structure Using Micro-Pulse Lidar and Compact Optical Backscatter Aerosol Detector

Hui Li; Zhangjun Wang; Haoyue Wang; Chao Chen; Xiangqian Meng; Xingtao Liu; Xianxin Li; Quanfeng Zhuang; Xiufen Wang

doi:10.3788/LOP56.132801

Laser & Optoelectronics Progress, Volume. 56, Issue 13, 132801(2019)

Combined Observation of Aerosol Vertical Structure Using Micro-Pulse Lidar and Compact Optical Backscatter Aerosol Detector

Hui Li¹, Zhangjun Wang^1、*, Haoyue Wang², Chao Chen¹, Xiangqian Meng¹, Xingtao Liu¹, Xianxin Li¹, Quanfeng Zhuang¹, and Xiufen Wang¹

Author Affiliations

¹ Institute of Oceanographic Instrumentation, Shandong Academy of Sciences, Qilu University of Technology (Shandong Academy of Sciences), Qingdao, Shandong 266100, China

² Department of Atmospheric Sciences, Yunnan University, Kunming, Yunnan 650091, China

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Figures & Tables(9)

Fig. 1. Scanning MPL. (a) Photo; (b) schematic of system structure

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Fig. 2. Example of synchronous observation on 27th July, 2017. (a) Average profile of lidar RCS echo; (b) backscatter ratio profile measured by COBALD; (c) CI profile; (d) RH profile

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Fig. 3. Comparison of backscatter ratios measured by lidar and COBALD. (a) Comparison of results using model values as boundary conditions; (b) comparison of results using measured values as boundary conditions

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Fig. 4. Comparison of backscatter ratio

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Fig. 5. Relative deviation profiles of backscatter ratio

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Fig. 6. Backscatter ratio measured by lidar on 31th July, 2017

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Fig. 7. RCS within 24 hours on 14th August, 2017

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Table 1. Technical parameters of scanning MPL

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Table 1. Technical parameters of scanning MPL

Transmitting subsystem		Receiver subsystem
Parameter	Specification	Parameter	Specification
Laser type	LD-pumped Nd∶YAG	Telescope type	Schmidt_Cassegrain
Laser wavelength /nm	532	Diameter /mm	200
Pulse energy /μJ	60	Field of view /μrad	500
Pulse duration /ns	10	Filter bandwidth /nm	1
Pulse repetition frequency /kHz	7
Beam divergence /μrad	120
Data subsystem		Scanning subsystem
Parameter	Specification	Parameter	Specification
Detector type	PMT	Azimuth angle /(°)	0~360
Detection mode	Photon counting	Elevation angle /(°)	0~180
Range resolution /m	37.5

Table 2. Technical parameters of COBALD
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Table 2. Technical parameters of COBALD
System parameter Specification
Optical wavelengths /nm 455 and 940
Time resolution /s 1(typically)
Dimensions /(mm×mm×mm) 170×40×20
Weight with batteries /g 500
Power supply /V 8×1.5, 2×9
Altitude /km 0~30

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Hui Li, Zhangjun Wang, Haoyue Wang, Chao Chen, Xiangqian Meng, Xingtao Liu, Xianxin Li, Quanfeng Zhuang, Xiufen Wang. Combined Observation of Aerosol Vertical Structure Using Micro-Pulse Lidar and Compact Optical Backscatter Aerosol Detector[J]. Laser & Optoelectronics Progress, 2019, 56(13): 132801

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