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

Author

Zhanqing Li, Yongbo Tan, Fengsheng Zhao, and Changsong Gai

Subjects
business.industry, Forward scatter, Solar irradiance, Aerosol, Sun photometer, Geophysics, Optics, Dust loading, Astrophysics::Solar and Stellar Astrophysics, General Earth and Planetary Sciences, Environmental science, Astrophysics::Earth and Planetary Astrophysics, business, Physics::Atmospheric and Oceanic Physics, Optical depth, Remote sensing
Abstract

[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.

Published
2012

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