Laser & Optoelectronics Progress, Volume. 58, Issue 19, 1901001(2021)

Theoretical Method to Estimate Vertical Distribution of Aerosol Absorption Coefficient

Baoying Li1,2,3, Shengcheng Cui1,3、*, Zhi Qiao1,2,3, Zihan Zhang1,3, Xuebin Li1,3, Tao Luo1,3, and Nana Liu1,3,4
Author Affiliations
  • 1Key Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei , Anhui 230031, China
  • 2Science Island Branch of Graduate School, University of Science and Technology of China, Hefei , Anhui 230026, China
  • 3Advanced Laser Technology Laboratory of Anhui Province, Hefei , Anhui 230037, China
  • 4School of Environmental Science & Optoelectronic Technology, University of Science and Technology of China, Hefei , Anhui 230026, China
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    To evaluate the effects of aerosol radiation forcing and laser atmospheric transport, it is necessary to know the parameters of aerosol light absorption characteristics and its vertical distribution. Thus, this paper presents a method based on a combination of field measurements and models to estimate the aerosol absorption coefficient distribution at vertical height. With the proposed method, the aerosol optical depth (AOD) and extinction profile at the entire layer are obtained via inversion with data observed using a sun-photometer and a LiDAR. Then, the aerosol absorption profile is obtained via selecting the corresponding aerosol modes as constraints from the moderate spectral resolution atmospheric transmittance algorithm and computer model (MODTRAN) and santa barbara DISORT atmospheric radiative transfer (SBDART) model. An inversion test is performed using data measured in a field experiment, and the results demonstrate that the proposed method is feasible and can be employed to obtain the vertical distribution of the aerosol absorption coefficient.

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    Baoying Li, Shengcheng Cui, Zhi Qiao, Zihan Zhang, Xuebin Li, Tao Luo, Nana Liu. Theoretical Method to Estimate Vertical Distribution of Aerosol Absorption Coefficient[J]. Laser & Optoelectronics Progress, 2021, 58(19): 1901001

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    Paper Information

    Category: Atmospheric Optics and Oceanic Optics

    Received: Jan. 12, 2021

    Accepted: Jan. 29, 2021

    Published Online: Sep. 29, 2021

    The Author Email: Cui Shengcheng (csc@aiofm.ac.cn)

    DOI:10.3788/LOP202158.1901001

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