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

Journals >Spectroscopy and Spectral Analysis >Volume 41 >Issue 7 >Page 2212 > Article

Spectroscopy and Spectral Analysis
Vol. 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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DOI: 10.3964/j.issn.1000-0593(2021)07-2212-07 Cite this Article

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 Copy Citation Text

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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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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 1. The parameters adopted in the optimal estimation retrieval framework

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波段	相对误差/%
443	5.4
490	4.8
565	2.1
670	2.7
865	2.5

Table 2. Calibration error for each band of DPC

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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 3. The aerosol model parameters and corresponding errors

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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%

Table 4. The surface model parameters and corresponding errors

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