Infrared and Laser Engineering, Volume. 46, Issue 4, 411001(2017)

Aerosol classification method based on high spectral resolution lidar

Liu Bingyi1、*, Zhuang Quanfeng1, Qin Shengguang1,2, Wu Songhua1, and Liu Jintao3
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
  • 3[in Chinese]
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    Aerosols play a key role in climate change and air quality. The quantitative analysis of aerosol′s contribution relies on accurate measurements of aerosol optical properties and their vertical profiles. The High Spectral Resolution Lidar(HSRL) has the capability of spectrally discriminating molecular backscatter from aerosol backscatter by a narrow-band optical filter. Therefore aerosol extinction coefficient and aerosol backscatter coefficient can be retrieved independently without assumption of the aerosol lidar ratio.The research on aerosol classification method was conducted based on HSRL technique in this paper. According to published results of aerosol classification, a classification method based on aerosol optical properties was given and an aerosol classification look-up table was provided accordingly. Aerosol extinction coefficient, aerosol backscatter coefficient and depolarization ratio measured by HSRL in Qingdao during the spring of 2015 were used to classify aerosol types referring to the established aerosol classification look-up table. The results are consistent with the trajectory model HYSPLIT and aerosol analysis system NAAPS. Results of case studies demonstrate the method in this paper is capable to identify different aerosol types properly.

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    Liu Bingyi, Zhuang Quanfeng, Qin Shengguang, Wu Songhua, Liu Jintao. Aerosol classification method based on high spectral resolution lidar[J]. Infrared and Laser Engineering, 2017, 46(4): 411001

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    Paper Information

    Category: 大气光学

    Received: Aug. 2, 2016

    Accepted: Sep. 5, 2016

    Published Online: Jun. 30, 2017

    The Author Email: Bingyi Liu (liubingyi@ouc.edu.cn)

    DOI:10.3788/irla201746.0411001

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