Effect Analysis of Using Different Polarization Quantities in Aerosol Retrieval From Satellite Observation

Feng-xun ZHENG; Jia-yi ZHU; Wei-zhen HOU; Zheng-qiang LI

doi:10.3964/j.issn.1000-0593(2021)07-2212-07

Spectroscopy and Spectral Analysis, Volume. 41, Issue 7, 2212(2021)

Effect Analysis of Using Different Polarization Quantities in Aerosol Retrieval From Satellite Observation

Feng-xun ZHENG^1、*, Jia-yi ZHU^2、2;, Wei-zhen HOU^3、3;, and Zheng-qiang LI^{3、3; *;}

Author Affiliations

¹1. College of Agricultural Equipment Engineering, Henan University of Science and Technology, Luoyang 471003, China

²2. Jiangsu North Huguang Opto-electronics Company, China North Industries Group Corporation Limited, Wuxi 214035, China

³3. State Environmental Protection Key Laboratory of Satellite Remote Sensing, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, China

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Figures & Tables(9)

Fig. 1. The Flowchart of information content analysis

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Fig. 2. The DPC observation geometries adopted in the forward simulation

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Fig. 3. The aerosol total DFS as function of AOD

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Fig. 4. The DFS of aerosol parameters using different polarization quantities

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Fig. 5. The a posteriori error ofaerosol parameters using different polarization quantities

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Table 1. The parameters adopted in the optimal estimation retrieval framework

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Table 1. The parameters adopted in the optimal estimation retrieval framework

符号	参数名称
$V_{0}^{f}$ , $V_{0}^{c}$	气溶胶细、粗模态体积柱浓度(μm³·μm^-2)
$r_{eff}^{r}$ , $r_{eff}^{c}$	气溶胶细、粗模态有效半径(μm)
$v_{eff}^{f}$ , $v_{eff}^{c}$	气溶胶细、粗模态有效方差
$m_{r}^{f}$ , $m_{r}^{c}$	气溶胶细、粗模态复折射指数实部
$m_{i}^{f}$ , $m_{i}^{c}$	气溶胶细、粗模态复折射指数虚部
f_iso(λ)	地表BRDF朗伯项参数
k₁, k₂	地表BRDF几何项和体积项系数
C	地表BPDF参数

Table 2. Calibration error for each band of DPC
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Table 2. Calibration error for each band of DPC
波段相对误差/%
443 5.4
490 4.8
565 2.1
670 2.7
865 2.5

Table 3. The aerosol model parameters and corresponding errors
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Table 3. The aerosol model parameters and corresponding errors
参数值相对误差/% 参数值绝对误差
$r_{eff}^{f}$ /μm 0.21 80 $m_{r}^{f}$ 1.44 0.15
$r_{eff}^{c}$ /μm 1.90 80 $m_{eff}^{c}$ 1.55 0.15
$v_{eff}^{f}$ 0.25 80 $m_{i}^{f}$ 0.011 0.01
$v_{eff}^{c}$ 0.41 80 $m_{i}^{c}$ 0.003 0.005

Table 4. The surface model parameters and corresponding errors
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Table 4. The surface model parameters and corresponding errors
参数值误差
f_iso(λ) 0.032 5, 0.034 7,
0.073 7, 0.039 5,
0.380 9 0.042 5, 0.049 5,
0.077 7, 0.091 7,
0.079 2
k₁ 0.668 80%
k₂ 0.087 80%
C 6.57 80%

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Feng-xun ZHENG, Jia-yi ZHU, Wei-zhen HOU, Zheng-qiang LI. Effect Analysis of Using Different Polarization Quantities in Aerosol Retrieval From Satellite Observation[J]. Spectroscopy and Spectral Analysis, 2021, 41(7): 2212

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