Evaluation and Selection of Aerosol Models in Atmospheric Radiative Transfer Calculations

Qin Wang; Chen Cheng; Hailiang Shi; Xianhua Wang; Hanhan Ye; Xiongwei Sun; Feng Zhu; Shichao Wu; Wei Xiong

doi:10.3788/AOS240466

Acta Optica Sinica, Volume. 44, Issue 12, 1201012(2024)

Evaluation and Selection of Aerosol Models in Atmospheric Radiative Transfer Calculations

Qin Wang^1,2,3, Chen Cheng^2,3、*, Hailiang Shi^2,3, Xianhua Wang^2,3, Hanhan Ye^2,3, Xiongwei Sun^2,3, Feng Zhu^2,3, Shichao Wu^2,3, and Wei Xiong^1,2,3、**

Author Affiliations

¹School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei 230026, Anhui , China

²Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, Anhui , China

³Anhui Province Key Laboratory of Optical Quantitative Remote Sensing, Chinese Academy of Sciences, Hefei 230031, Anhui , China

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Figures & Tables(17)

Fig. 1. Flow chart of aerosol model evaluation

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Fig. 2. AOD-AROD classification model

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Fig. 3. Flow chart of random forest algorithm

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Fig. 4. Backward trajectory and atmospheric probability distribution field

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Fig. 5. Wind roses in Xianghe area in 2018

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Fig. 6. Classification results of aerosols in Xianghe area in 2018

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Fig. 8. Comparison of predicted types and actual types of aerosols

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Fig. 9. Backward trajectory of aerosol in Xianghe area. (a) September 18, 2018; (b) September 15, 2018

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Fig. 10. Probability distribution field of atmospheric transport in the previous 6 h

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Fig. 11. Probability distribution field of atmospheric transport in the previous 12 h

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Fig. 12. Probability distribution field of atmospheric transport in the previous 24 h

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Fig. 13. Simulated spectra of rural aerosol model and urban aerosol model

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Fig. 14. Comparison of error rates of aerosol models between rural and urban types

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Table 1. Input parameters of wind direction
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Table 1. Input parameters of wind direction
Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW
Frequency 2 0 0 0 0 0 0 0 0 0 0 0 0 28 56 10

Table 2. Input parameters of source orientation
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Table 2. Input parameters of source orientation
Orientation N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW
Tag 0 0 0 0 0 0 0 0 1 0 0 1 1 1 0 0

Table 3. Comparison of the accuracy of random forest models with different time images
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Table 3. Comparison of the accuracy of random forest models with different time images
Time Previous 24 h Previous 12 h Previous 6 h Previous 3 h
Accuracy /% 69.11 71.04 64.86 61.78

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Qin Wang, Chen Cheng, Hailiang Shi, Xianhua Wang, Hanhan Ye, Xiongwei Sun, Feng Zhu, Shichao Wu, Wei Xiong. Evaluation and Selection of Aerosol Models in Atmospheric Radiative Transfer Calculations[J]. Acta Optica Sinica, 2024, 44(12): 1201012

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