Journal of Atmospheric and Environmental Optics, Volume. 18, Issue 4, 357(2023)

Preliminary sensitivity study of aerosol layer height from ultraviolet multiangle polarimetric remote sensing measurements

GU Haoran1,4, LI Zhengqiang1,5、*, HOU Weizhen1,5、**, QIU Zhenwei2, LIU Zhenhai2, ZHU Jun3, QIE Lili1, LUO Jie1, HONG Jin2, and MA Jinji4
Author Affiliations
  • 1State Environmental Protection Key Laboratory of Satellite Remote Sensing, Aerospace Information Research Institute,Chinese Academy of Sciences, Beijing 100101, China
  • 2Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
  • 3DFH Satellite Co. Ltd, Beijing 100094, China
  • 4School of Geography and Tourism, Anhui Normal University, Wuhu 241003, China
  • 5University of Chinese Academy of Sciences, Beijing 100049, China
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    To explore the detection ability of the multiangle polarimetric remote sensing measurements in the ultraviolet band for aerosol layer height (ALH), the ALH retrieval information has been systematically evaluated under different observation conditions using the multiangle polarimetric measurements in ultraviolet bands. Based on the optimal estimation theory and the information content analysis method, the sensitivity of the ALH to the observations of 365 nm and 388 nm bands has been analyzed, and the impacts of different conditions on the information content and posterior error of ALH have also been assessed. The results show that: (1) The information content for ALH retrieval is significantly improved by adding multi-angle polarimetric measurements. (2) The information content increases significantly with the increase of the number of viewing angles, and the degree of freedom for signal (DFS) for ALH retrieval can be improved by more than 0.4. (3) Both the addition of polarization observation at 388 nm and the intensity observation at 365 nm can improve the DFS of ALH, however, compared to the intensity observation, the polarization observation shows better results and is less affected by the aerosol model error. Especially, the polarization observation can improve the ALH retrieval under low aerosol optical depth (AOD) conditions.

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    Haoran GU, Zhengqiang LI, Weizhen HOU, Zhenwei QIU, Zhenhai LIU, Jun ZHU, Lili QIE, Jie LUO, Jin HONG, Jinji MA. Preliminary sensitivity study of aerosol layer height from ultraviolet multiangle polarimetric remote sensing measurements[J]. Journal of Atmospheric and Environmental Optics, 2023, 18(4): 357

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    Paper Information

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    Received: Jun. 2, 2022

    Accepted: --

    Published Online: Aug. 24, 2023

    The Author Email: LI Zhengqiang (lizq@aircas.ac.cn), HOU Weizhen (houwz@radi.ac.cn)

    DOI:10.3969/j.issn.1673-6141.2023.04.008

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