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Laser & Optoelectronics Progress, Volume. 56, Issue 24, 240101(2019)

Typical Case of Multi-Wavelength Aerosol Lidar Observation of Persistent Hazy Weather in Beijing

Quanfeng Zhuang1, Yimeng Wang2, Zhangjun Wang1、*, Chao Chen1, Hui Li1, Junli Liu1, Xingtao Liu1, Xiangqian Meng1, and Xiufen Wang1
Author Affiliations
  • 1Institute of Oceanographic Instrumentation, Shandong Academy of Sciences, Qilu University of Technology (Shandong Academy of Sciences), Qingdao, Shandong 266001, China
  • 2Meteorological Observation Center of CMA, Beijing 100081, China
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    AbstractGet PDF(in Chinese)
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    Distribution of aerosol extinction coefficient at 532 nm (from November 4 to 7, 2017)

    Fig. 1. Distribution of aerosol extinction coefficient at 532 nm (from November 4 to 7, 2017)

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    Distribution of aerosol depolarization ratio at 532 nm (from November 4 to 7, 2017)

    Fig. 2. Distribution of aerosol depolarization ratio at 532 nm (from November 4 to 7, 2017)

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    Profiles of sounding data from November 4 to 7, 2017. (a) Relative humidity; (b) temperature; (c) wind speed; (d) wind direction

    Fig. 3. Profiles of sounding data from November 4 to 7, 2017. (a) Relative humidity; (b) temperature; (c) wind speed; (d) wind direction

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    Temporal variation curves of sounding data at heights of 1, 2, and 3 km from November 4 to 7, 2017. (a) Relative humidity; (b) temperature; (c) wind speed; (d) wind direction

    Fig. 4. Temporal variation curves of sounding data at heights of 1, 2, and 3 km from November 4 to 7, 2017. (a) Relative humidity; (b) temperature; (c) wind speed; (d) wind direction

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    24-h backward tracking trajectories calculated by HYSPLIT model over observation site. (a) From 20171104T12: 00 back to 20171103T12: 00; (b) from 20171108T00: 00 back to 20171107T00: 00

    Fig. 5. 24-h backward tracking trajectories calculated by HYSPLIT model over observation site. (a) From 20171104T12: 00 back to 20171103T12: 00; (b) from 20171108T00: 00 back to 20171107T00: 00

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    • Table 1. Technical parameters of multi-wavelength aerosol lidar

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      Table 1. Technical parameters of multi-wavelength aerosol lidar

      InstrumentParameterSpecification
      Laser typeFlash-Lamp pumped Nd∶YAG laser
      Laser wavelength355, 532, 607, and 1064 nm
      Transmitter subsystemPulse energy80 mJ@355 nm, 50 mJ@532 nm, 100 mJ@1064 nm
      Repetition rate20 Hz
      Divergence angle0.15 mrad (using a 5× expander)
      TelescopeSchmidt-Cassegrain, D=30 cm
      ReceiverField of view0.3 mrad
      Interference filter1 nm (FWHM) for each wavelength
      DetectorsAPD for 1064 nm; PMT for355, 532 and 607 nm
      Data acquisition andcontrol systemData acquisition cardLicel transient recorder (40 MHz, 12 bit)
      Height resolution15 m
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    Quanfeng Zhuang, Yimeng Wang, Zhangjun Wang, Chao Chen, Hui Li, Junli Liu, Xingtao Liu, Xiangqian Meng, Xiufen Wang. Typical Case of Multi-Wavelength Aerosol Lidar Observation of Persistent Hazy Weather in Beijing[J]. Laser & Optoelectronics Progress, 2019, 56(24): 240101

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    Paper Information

    Category: Atmospheric Optics and Oceanic Optics

    Received: May. 1, 2019

    Accepted: Jun. 6, 2019

    Published Online: Nov. 26, 2019

    The Author Email: Wang Zhangjun (zhangjun.wang@hotmail.com)

    DOI:10.3788/LOP56.240101

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology