globalchange  > 气候变化与战略
DOI: 10.1016/j.atmosenv.2020.117501
论文题名:
Controlling factors analysis for the Himawari-8 aerosol optical depth accuracy from the standpoint of size distribution, solar zenith angles and scattering angles
作者: Zhang M.; Ma Y.; Shi Y.; Gong W.; Chen S.; Jin S.; Wang J.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 233
语种: 英语
英文关键词: Aerosols ; Backscattering ; Factor analysis ; Particle size ; Particle size analysis ; Photometers ; Photometry ; Size distribution ; Aerosol optical depths ; Coefficient of determination ; Controlling factors ; Fine-mode particles ; Ground-based observations ; Hygroscopic growth ; Satellite geometry ; Solar zenith angle ; Quality control ; accuracy assessment ; aerosol ; factor analysis ; ground-based measurement ; optical depth ; scattering ; size distribution ; solar power ; zenith angle ; Article ; astronomy ; atmosphere ; comparative study ; correlation coefficient ; geometry ; information retrieval ; light scattering ; measurement accuracy ; optical depth ; particle size ; photometry ; priority journal ; summer ; sun ; China ; Hubei ; Wuhan
学科: Advanced himawari imager ; Aerosol optical depth ; Scattering angles ; Size distribution ; Solar zenith angles
中文摘要: This work aims at providing a novel controlling factors analysis for the Advanced Himawari Imager (AHI) AOD retrieval from the aspect of particle size distribution and Sun-Earth-Satellite geometries, through combining the high quality ground-based observation in Wuhan. The three-years co-located AOD dataset of AHI and sun-photometer in Wuhan are used to support this work. AHI overall underestimates AOD over Wuhan site with coefficient of determination (R2) equal 0.7. Though the best retrieval appeared in summer, underestimation is found to be persistent in each season. Combining with the characteristics of aerosol hygroscopic growth in Wuhan, we found the fine-mode particle median radius which supposed by AHI is lower than the in-site measurement. This leads to the overestimation of back scattering by aerosol particles, and induces underestimation of AOD consequently. The correlation and bias analyses of AOD with respect to the variation of Solar Zenith Angle and scattering angles are also performed. Phase function derived by sun-photometer is applied to discuss the influence of scattering angle on AOD inversion. Accompany with the scattering angle, the AOD retrieval bias consistently varies with the phase function bias, which further confirm the impact of phase function on AHI retrieval. Finally, the dark target method was applied to retrieve AHI AOD. The comparison results show that dark target overestimated AOD and performed worse in Wuhan. It could reveals that AHI aerosol retrieval method has some advantages in heavy aerosol loading places without enough prior information of aerosol properties. © 2020 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160740
Appears in Collections:气候变化与战略

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作者单位: Hubei Key Laboratory of Critical Zone Evolution, School of Geography and Information Engineering, China University of Geosciences, Wuhan, 430074, China; State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, China; School of Mathematics and Statistics, Wuhan University, China; Department of Chemical and Biochemical Engineering, Center for Global & Regional Environmental Research, The University of Iowa, Iowa City, IA 52242, United States

Recommended Citation:
Zhang M.,Ma Y.,Shi Y.,et al. Controlling factors analysis for the Himawari-8 aerosol optical depth accuracy from the standpoint of size distribution, solar zenith angles and scattering angles[J]. Atmospheric Environment,2020-01-01,233
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