The effect and correction of aerosol forward scattering on retrieval of aerosol optical depth from Sun photometer measurements

نویسندگان

  • Fengsheng Zhao
  • Yongbo Tan
  • Zhanqing Li
  • Changsong Gai
چکیده

[1] The Sun photometer is widely used to retrieve aerosol optical depth (AOD). In this study, the effect of atmospheric forward scattering on the measurement of direct solar irradiance is analyzed. In most cases, this effect can be safely neglected. However, in the case of heavy dust loading, errors in AOD derived from Sun photometer measurements can be significant which warrants a correction of the forward scattering to derive accurate values of AOD. An algorithm is presented for such a correction. Citation: Zhao, F., Y. Tan, Z. Li, and C. Gai (2012), The effect and correction of aerosol forward scattering on retrieval of aerosol optical depth from Sun photometer measurements, Geophys. Res. Lett., 39, L14805, doi:10.1029/2012GL052135.

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تاریخ انتشار 2012