Numerical Evaluation of Precision of Atmospheric Molecular Absorption Calculated by MODTRAN5 Band Model

Journal of Atmospheric and Environmental Optics ›› 2017, Vol. 12 ›› Issue (5): 332-339.

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Numerical Evaluation of Precision of Atmospheric Molecular Absorption Calculated by MODTRAN5 Band Model

MA Li1,2, DAI Congming2*, TANG Chaoli2, MIAO Xikui3, WEI Heli1,2

(1. School of Environmental Sciences and Optoelectronic Technology, University of Science and Technology of China, Hefei 230026, China;
2. Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;
3. Key Laboratory of Electro-Optical Countermeasures Test & Evaluation Technology, Luoyang Electronic Euipment Test center of China, Luoyang 471003, China)

Received:2016-03-10 Revised:2016-04-08 Online:2017-09-28 Published:2017-09-21
Supported by:
Supported by Open Funds of Electro-Optical Countermeasures Test & Evaluation Technology(空间目标测量重点实验室开放基金)

Abstract

Abstract:

The MODTRAN5 radiation transport model is advanced over earlier versions of the MODTRAN model. The spectral resolution has been improved from 2 cm-1 to 0.2 cm-1. To validate the precision of atmospheric molecular absorption calculated by MODTRAN5 band model, the atmospheric molecular absorption spectral transmittance is calculated by using the accurate line-by-line atmospheric transfer model (LBLRTM), then as a reference to the results of MODTRAN5. The results show that the MODTRAN5 coincides with LBLRTM at most cases, and the root-mean-square error (RMSE) of atmospheric spectral transmittance between the MODTRAN5 and LBLRTM is almost below 0.02. But at some spectral region, the difference can be over 0.03. As the largest difference occurs at 4.3 μm wavelength which is the border of strong absorption band of carbon dioxide, the RMSE is 0.0377.

Key words: MODTRAN5, atmospheric molecular absorption, calculating precision

CLC Number:

P407.6

MA Li, DAI Cong-Ming, TANG Chao-Li, MIAO Ti-Kui, WEI He-Li. Numerical Evaluation of Precision of Atmospheric Molecular Absorption Calculated by MODTRAN5 Band Model[J]. Journal of Atmospheric and Environmental Optics, 2017, 12(5): 332-339.

References

[1] Liou K N. An Introduction to Atmospheric Radiation [M]. 2nd ed., San Diego: Academic Press, 2002.
[2] Kneizys F X, Shettle E P, Abreu L W, et al. Users Guide to LOWTRAN7 [M]. Air Force Geophysics Lab Hanscom AFB MA, 1988.
[3] Berk A, Anderson G P, Acharya P K, et al. MODTRAN 4 Version 2 User Manual [M]. Air Force Research Laboratory, Space Vehicles Directorate, Air Force Materiel Command, Hanscom AFB, 2000.
[4] Vermote E, Tanré D, Deuze J L, et al. Second Simulation of the Satellite Signal in the Solar Spectrum (6S), 6S User’s Guide, Version 2 [M]. NASA Goddard Space Flight Center, Greenbelt, MD, 1997.
[5] Clough S A, Shephard M W, Mlawer E J, et al. Atmospheric radiative transfer modeling: a summary of the AER codes [J]. J. Quant. Spectr. Rad. Transf., 2005, 91(2): 233-244.
[6] Wei H L, Chen X H, Rao R Z, et al. A moderate-spectral-resolution transmittance model based on fitting the line-by-line calculation [J]. Opt. Express, 2007, 15(13): 8360-8370.
[7] Dai Congming, Wei Heili, Chen Xiuhong. Validation of atmospheric molecular absorption and themal radiance calculated by combined atmospheric radiance transfer (CART) code [J]. Infrared and Laser Engineering, 2013, 42(1): 174-180(in Chinese).
戴聪明, 魏合理, 陈秀红. 通用大气辐射传输软件 (CART) 分子吸收和热辐射计算精度验证 [J]. 红外与激光工程, 2013, 42(1): 174-180。
[8]Anderson G P, ChetwyndJr J H, Theriault J M, et al. MODTRAN2: Suitabilityforremote sensing [C]. Optical Engineering and Photonics in Aerospace Sensing. International Society for Optics and Photonics, 1993: 514-525.
[9] Anderson G P, Chetwynd J H, Kneizys F X, et al. MODTRAN 3: Suitability as a flux-divergence code [C]. Proc. 4th ARM Science Team Meeting. 1994: 75-80.
[10] Anderson G P, Berk A, Acharya P K, et al. MODTRAN4: Radiative transfer modeling for remote sensing [C]. AeroSense 2000. International Society for Optics and Photonics, 2000: 176-183.
[11] Berk A, Anderson G P, Acharya P K, et al. MODTRAN 5: a reformulated atmospheric band model with auxiliary species and practical multiple scattering options: update [C]. Defense and Security. International Society for Optics and Photonics, 2005: 662-667.

Numerical Evaluation of Precision of Atmospheric Molecular Absorption Calculated by MODTRAN5 Band Model

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