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2 results on '"Changsong Gai"'

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

2. Estimation of the temporal and spatial distribution of dust concentration over China by combining PM10 and conventional meteorological observations.

Author

Fengsheng Zhao, Xiaoqing Li, Changsong Gai, and Wenhua Gao

Subjects
DUST microbiology, ALGORITHMS, SPATIAL variation, ATMOSPHERIC aerosols, TERRESTRIAL radiation
Abstract

In this paper, we will present a simple algorithm to estimate the temporal and spatial distribution of dust mass concentration by combining PM10 and conventional meteorological observations. The efficiency of the algorithm has been demonstrated by applying it to analyze the dust source, transport, and dissipation of the dust storm which occurred in the west region of Pa-tan-chi-lin Desert at 0200 BST 27 March, 2004. [ABSTRACT FROM AUTHOR]

Published
2010
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