• Journal of Infrared and Millimeter Waves
  • Vol. 36, Issue 2, 235 (2017)
HU Shuai*, GAO Tai-Chang, LI Hao, CHENG Tian-Ji, CHEN Ming, LIU Lei, and ZHANG Ting
Author Affiliations
  • [in Chinese]
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    DOI: 10.11972/j.issn.1001-9014.2017.02.018 Cite this Article
    HU Shuai, GAO Tai-Chang, LI Hao, CHENG Tian-Ji, CHEN Ming, LIU Lei, ZHANG Ting. Analysis on the impact of non-spherical aerosol on polarized radiative transfer in near-infrared band and its equivalent-sphere errors[J]. Journal of Infrared and Millimeter Waves, 2017, 36(2): 235 Copy Citation Text show less

    Abstract

    In order to estimate the impact of non-spherical aerosol on polarized radiative transfer, the sensitivity of radiance and polarized radiance to aerosol shape was analyzed based on T Matrix method and MACAR_VSPART. In addition, the simulation errors due to the approximation that taking the non-spherical particles as sphere ones were discussed. The simulation results show that, for radiance and polarized radiance, shape sensitivities are different at different directions. The angular distributions of shape sensitivity coefficient are typical for specified solar zenith angles, which is helpful for the data selection of remote sensing process to avoid the influence of aerosol shape. Obvious simulation errors are caused by taking the non-spherical aerosol particles as sphere ones, especially for polarized radiance. The impact of shape on upwelling diffuse light at the top of atmosphere is much stronger than down-welling diffuse light at surface.
    HU Shuai, GAO Tai-Chang, LI Hao, CHENG Tian-Ji, CHEN Ming, LIU Lei, ZHANG Ting. Analysis on the impact of non-spherical aerosol on polarized radiative transfer in near-infrared band and its equivalent-sphere errors[J]. Journal of Infrared and Millimeter Waves, 2017, 36(2): 235
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