Evaluation of aerosol microphysical, optical and radiative properties measured with a multiwavelength photometer

doi:10.5194/amt-15-2139-2022

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	Evaluation of aerosol microphysical, optical and radiative properties measured with a multiwavelength photometer
	Y. Zheng; H. Z. Che; Y. P. Wang; X. G. Xia; X. Q. Hu; X. C. Zhang; J. Zhu; J. B. Zhu; H. J. Zhao; L. Li; K. Gui and X. Y. Zhang
	2022
发表期刊	Atmospheric Measurement Techniques
ISSN	1867-1381
卷号	15 期号:7 页码:2139-2158
摘要	An evaluation of aerosol microphysical, optical and radiative properties measured with a multiwavelength photometer named CW193 was performed in this study. The instrument has a highly integrated design, smart control performance and is composed of three parts (the optical head, robotic drive platform and stents system). Based on synchronous measurements, the CW193 products were validated using reference data from the AERONET CE318 photometer. The results show that the raw digital counts from CW193 agree well with the counts from AERONET (R > 0.989), with daily average triplets of around 1.2 % to 3.0 % for the ultraviolet band and less than 2.0 % for the visible and infrared bands. Good aerosol optical depth agreement (R > 0.997, 100 % within expected error) and root mean square error (RMSE) values ranging from 0.006 (for the 870 nm band) to 0.016 (for the 440 nm band) were obtained, with the relative mean bias (RMB) ranging from 0.922 to 1.112 and the aerosol optical depth bias within +/- 0.04. The maximum deviation of the peak value for fine-mode particles varied from about 8.9 % to 77.6 %, whereas the variation for coarse-mode particles was about 13.1 % to 29.1 %. The deviation vari ations of the single scattering albedo were approximately 0.1 %-1.8 %, 0.6 %-1.9 %, 0.1 %-2.6 % and 0.8 %-3.5 % for the 440, 675, 870 and 1020 nm bands, respectively. For the aerosol direct radiative forcing, deviations of approximately 4.8 %-12.3 % were obtained at the earth's surface and 5.4 %-15.9 % for the top of the atmosphere. In addition, the water vapor retrievals showed satisfactory accuracy, characterized by a high R value (similar to 0.997), a small RMSE (similar to 0.020) and a good expected error distribution (100 % within expected error). The water vapor RMB was about 0.979, and the biases mostly varied within +/- 0.04, whereas the mean values were concentrated within +/- 0.02.
DOI	10.5194/amt-15-2139-2022
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收录类别	sci
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67302
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Y. Zheng,H. Z. Che,Y. P. Wang,et al. Evaluation of aerosol microphysical, optical and radiative properties measured with a multiwavelength photometer[J]. Atmospheric Measurement Techniques,2022,15(7):2139-2158.
APA	Y. Zheng.,H. Z. Che.,Y. P. Wang.,X. G. Xia.,X. Q. Hu.,...&K. Gui and X. Y. Zhang.(2022).Evaluation of aerosol microphysical, optical and radiative properties measured with a multiwavelength photometer.Atmospheric Measurement Techniques,15(7),2139-2158.
MLA	Y. Zheng,et al."Evaluation of aerosol microphysical, optical and radiative properties measured with a multiwavelength photometer".Atmospheric Measurement Techniques 15.7(2022):2139-2158.

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