Effect of aerosol vertical inhomogeneity on sky background brightness

Bian Jian; Qie Lili; Xu Wenqing; Xu Qingshan

doi:10.3788/HPLPB20132505.1081

Volume 25 Issue 05

Mar. 2013

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(05): 1081-1086

Yang Zhenghua, Chen Bolun, Wei Minxi, et al. Development and application of high-resolution spherically bent crystal monochromatic imaging system[J]. High Power Laser and Particle Beams, 2013, 25: 2267-2269. doi: 10.3788/HPLPB20132509.2267

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Bian Jian, Qie Lili, Xu Wenqing, et al. Effect of aerosol vertical inhomogeneity on sky background brightness[J]. High Power Laser and Particle Beams, 2013, 25: 1081-1086. doi: 10.3788/HPLPB20132505.1081

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Effect of aerosol vertical inhomogeneity on sky background brightness

doi: 10.3788/HPLPB20132505.1081

Bian Jian^1,2,3,
Qie Lili^1,2,
Xu Wenqing^1,2,
Xu Qingshan^{1
,
,}

1.
Key Laboratory of Atmospheric Composition and Optical Radiation,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China;
2.
University of Chinese Academy of Sciences,Beijing 100039,China;
3.
Department of Mathematics and Physics,Hefei University,Hefei 230601,China

Received Date: 2012-08-21
Rev Recd Date: 2012-12-29
Publish Date: 2013-03-12

Abstract

Abstract

Numerical experiments have been conducted to simulate the sky background brightness for various aerosol scale heights in order to study the effect of vertical distribution of aerosol on the sky background brightness. A homogeneous model and a vertically inhomogeneous distributed model are utilized to estimate the sky background brightness under the conditions of different ground surface reflectances. The relative differences of sky background brightness as well as the sensitivity of sky background brightness to ground surface reflectance are also shown. The results indicate that the sky background brightness is much different under various aerosol scale heights for given aerosol optical thickness and ground surface reflectance. Moreover,the sky background brightness is also sensitive to the ground surface reflectance and aerosol optical thickness, and the degree of sensitivity is dependent on solar-observation geometry.
- sky background brightness,
- aerosol vertical distribution,
- optical thickness,
- scale height,
- surface reflectance

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