Acta Photonica Sinica, Volume. 50, Issue 12, 1201005(2021)
Doppler Lidar Retrieval of Particulate Matter Concentration Based on Statistical Regression Method
Figures & Tables(9)
Fig. 4. Regression results of measurements from all heights after relative humidity correction.
Fig. 5. The regression results of the humidity corrected particulate matter at various heights
Table 1. Technical specifications of WindMast WP350
View tableView in ArticleTable 1. Technical specifications of WindMast WP350
Parameters Value Laser wavelength 1.5 μm Probe height range 20 m~350 m Spatial resolution 1 m Refresh time 1 s~10 min Wind speed measurement range 0~75 m·s-1 Wind speed precision ≤0.1 m·s-1 Wind direction precision <3° Weight <30 kg
Table 2. Experimental data for comparison
View tableView in ArticleTable 2. Experimental data for comparison
Data Measuring instruments Resolution Numbers Height/m Backward scattering intensity WP350 5 min 37 440 60，70，120，200 Relative humidity WXT520 28 038 50，100，200 PM2.5 concentration Thermo5030i 16 761 70，120，220 PM10 concentration 16 745 60，110，210
Table 3. Regression results of each height PM
View tableView in ArticleTable 3. Regression results of each height PM
PM PM2.5 PM10 Height/m 70 120 220 70 120 220 RMSE/（μg·m-3） 13.01 15.35 16.21 27.54 23.74 31.76 MAE/（μg·m-3） 9.68 11.24 10.44 20.84 18.3 24.03 r 0.68 0.85 0.78 0.58 0.58 0.54
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Likai CUI, Xiaoquan SONG, Yawen YANG, Jiaxin LIU, Zhenni LI, Long YUN, Mingdi ZHANG. Doppler Lidar Retrieval of Particulate Matter Concentration Based on Statistical Regression Method[J]. Acta Photonica Sinica, 2021, 50(12): 1201005
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Received: Jun. 5, 2021
Accepted: Aug. 8, 2021
Published Online: Jan. 25, 2022
The Author Email: SONG Xiaoquan (songxq@ouc.edu.cn)
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