Synergistic Simulation of Aerosols and Greenhouse Gases Based on Polarization and Hyperspectral Integration

Min Li; Cheng Fan; Zhengqiang Li; Leiku Yang; Ying Zhang; Haoran Gu; Zhenting Chen; Peng Zhou

doi:10.3788/AOS241607

Acta Optica Sinica, Volume. 45, Issue 6, 0628013(2025)

Synergistic Simulation of Aerosols and Greenhouse Gases Based on Polarization and Hyperspectral Integration

Min Li1...2, Cheng Fan1,*, Zhengqiang Li1,3,**, Leiku Yang2, Ying Zhang1, Haoran Gu1, Zhenting Chen4, and Peng Zhou12 |Show fewer author(s)

Author Affiliations

¹State Environmental Protection Key Laboratory of Satellite Remote Sensing & Key Laboratory of Remote Sensing and Digital Earth, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, China

²School of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo 454003, Henan , China

³College of Geography and Environmental Science, Henan University, Zhengzhou 475004, Henan , China

⁴School of Information Engineering, Kunming University, Kunming 650214, Yunnan , China

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Abstract Get PDF(in Chinese)

Figures & Tables(18)

Fig. 1. Technology roadmap

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Fig. 2. Particle number concentration plots for fine and coarse modes. (a) Fine mode; (b) coarse mode

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Fig. 3. Grassland, soil, and mixed surface reflectance

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Fig. 4. Scattering angle range

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Fig. 5. Jacobian matrix of H₂O, CH₄ and CO₂

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Fig. 6. Retrieval results of polarization data in AOD, AOD_fine and AOD_coarse. (a)‒(c) X; (d)‒(f) X+1610 nm; (g)‒(i) X+1610 nm+2250 nm

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Fig. 7. Retrieval results of polarization and hyperspectral in AOD, AOD_fine and AOD_coarse. (a)‒(c) Y; (d)‒(f) Y+1610 nm; (g)‒(i) Y+1610 nm+2250 nm

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Fig. 8. Retrieval results of polarization and hyperspectral. (a) AOD_mode 1; (b) AOD_mode 2; (c) AOD_mode 3

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Fig. 9. Retrieval results of polarization and hyperspectral in XCH₄ and XCO₂. (a) XCH₄; (b) XCO₂

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Fig. 10. Probability distributions of inversion bias between XCH₄ and XCO₂. (a) XCH₄; (b) XCO₂

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Fig. 11. Percentage change error charts of AOD_fine, AOD_coarse, and scattering angle on XCH₄ and XCO₂. (a)(b) AOD_fine; (c)(d) AOD_coarse; (e)(f) scattering angle

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Fig. 12. Retrieval results of AOD, XCH₄ and XCO₂ in BK-1. (a)‒(c) Z; (d)‒(f) Z+1610 nm; (g)‒(i) Z+2250 nm

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Table 1. Information from multiband polarization sensor

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Table 1. Information from multiband polarization sensor

Band number	Wavelength /nm	Spectral bandwidth /nm	Measurement	Main application
1	380	20	I, Q, U	ALH, AA
2	410	20	I, Q, U	AA
3	443	20	I, Q, U	AOD
4	490	20	I, Q, U	AOD
5	670	20	I, Q, U	NDVI, LSR
6	865	40	I, Q, U	NDVI, LSR
7	1610	60	I, Q, U	LSR
8	2250	80	I, Q, U	LSR
Calibration error		$Δ$ I<3%	$Δ$ d_DOLP<0.003

Table 2. Characteristics of hyperspectral instrument^[12]

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Table 2. Characteristics of hyperspectral instrument^[12]

Band ID	Spectral range /nm	Spectral resolution /nm	Spectralsampling ratio	a_noise /(photons^-1·cm²·s·nm·sr)	b_noise	Telluricabsorption
NIR	747‒773	0.12	3	2.0×10^-8	19600	O₂
SWIR 1	1590‒1675	0.3	3	1.32×10^-7	202500	H₂O, CO₂ and CH₄
SWIR 2	1990‒2095	0.35	3	1.54×10^-7	202500	H₂O and CO₂

Table 3. State variable and priori values of atmosphere and surface parameters

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Table 3. State variable and priori values of atmosphere and surface parameters

Category	State variable	Priori	Weight	Min	Max
Trace gas	CO₂ scaling factor	1.0	1.0	0	10
	H₂O scaling factor	1.0	1.0	0	10
	CH₄ scaling factor	1.0	1.0	0	10
Fine mode	$r_{e f f}$	0.15	0.2	0.02	0.30
	$v_{e f f}$	0.2	0.05	0.01	0.80
	N_aer	0.0001	0.5	0.001	1.000
	$z_{a e r}$ /m	2000	4000	-2×10³	10×10³
	$c_{1}$ （INORG real）	0.95	0.1	0	1.05
Coarse insoluble mode	$r_{e f f}$	1.0	1.0	0.7	5.0
	N_aer	0.0001	0.5	0.001	1.000
	$z_{a e r}$ /m	2000	4000	-2×10³	10×10³
Coarse soluble mode	$r_{e f f}$	2.5	1.0	0.7	5.0
Coarse soluble mode	N_aer	0.001	0.5	0.001	1.000
Surface property	A（ $λ$ ）	0.05	0.5	0	1

Table 4. Inversion settings

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Table 4. Inversion settings

Sensor	Wavelength	Total measured value
Polarization sensor	380 nm+410 nm+443 nm+490 nm+670 nm+865 nm=X	12
	X+1610 nm	14
	X+1610 nm+2250 nm	16
Polarization sensor+hyperspectral spectrometer	X+747-773 nm+1590-1675 nm+1990-2095 nm=Y	2420
	Y+1610 nm	2422
	Y+1610 nm+2250 nm	2424

Table 5. Inversion results of different mode aerosols
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Table 5. Inversion results of different mode aerosols
Wavelength AOD_fine AOD_coarse
RMSE bias RMSE bias
X 0.164 -0.04 0.231 0.121
X+1610 nm 0.157 -0.04 0.141 0.075
X+1610 nm+2250 nm 0.157 -0.04 0.122 0.065

Table 6. Inversion settings table of BK-1
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Table 6. Inversion settings table of BK-1
Sensor Wavelength Total measured value
SPARC+SCEDI 490 nm+670 nm+870 nm+747-773 nm+1590-1675 nm=Z 1508
Z+1610 nm 1510
Z+2250 nm 1510

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Min Li, Cheng Fan, Zhengqiang Li, Leiku Yang, Ying Zhang, Haoran Gu, Zhenting Chen, Peng Zhou. Synergistic Simulation of Aerosols and Greenhouse Gases Based on Polarization and Hyperspectral Integration[J]. Acta Optica Sinica, 2025, 45(6): 0628013

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