• Acta Photonica Sinica
  • Vol. 50, Issue 12, 1201005 (2021)
Likai CUI1, Xiaoquan SONG1、2、*, Yawen YANG1, Jiaxin LIU1, Zhenni LI1, Long YUN3, and Mingdi ZHANG3
Author Affiliations
  • 1College of Marine Technology, Faculty of Information Science and Engineering, Ocean University of China, Qingdao , Shandong 266100, China
  • 2Laboratory for Regional Oceanography and Numerical Modelling, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao , Shandong 266237, China
  • 3Shenzhen Environmental Monitoring Center, Shenzhen , Guangdong 518049, China
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    DOI: 10.3788/gzxb20215012.1201005 Cite this Article
    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 Copy Citation Text show less
    Experiment location map and photos
    Fig. 1. Experiment location map and photos
    Geometrical overlap factor
    Fig. 2. Geometrical overlap factor
    Regression results of measurements from all heights.
    Fig. 3. Regression results of measurements from all heights.
    Regression results of measurements from all heights after relative humidity correction.
    Fig. 4. Regression results of measurements from all heights after relative humidity correction.
    The regression results of the humidity corrected particulate matter at various heights
    Fig. 5. The regression results of the humidity corrected particulate matter at various heights
    Moisture absorption factor model for each height
    Fig. 6. Moisture absorption factor model for each height
    ParametersValue
    Laser wavelength1.5 μm
    Probe height range20 m~350 m
    Spatial resolution1 m
    Refresh time1 s~10 min
    Wind speed measurement range0~75 m·s-1
    Wind speed precision≤0.1 m·s-1
    Wind direction precision<3°
    Weight<30 kg
    Table 1. Technical specifications of WindMast WP350
    DataMeasuring instrumentsResolutionNumbersHeight/m
    Backward scattering intensityWP3505 min37 44060,70,120,200
    Relative humidityWXT52028 03850,100,200
    PM2.5 concentrationThermo5030i16 76170,120,220
    PM10 concentration16 74560,110,210
    Table 2. Experimental data for comparison
    PMPM2.5PM10
    Height/m7012022070120220
    RMSE/(μg·m-313.0115.3516.2127.5423.7431.76
    MAE/(μg·m-39.6811.2410.4420.8418.324.03
    r0.680.850.780.580.580.54
    Table 3. Regression results of each height PM
    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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