| MODTRAN5分子吸收模式的计算精度数值评估 |
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| 引用本文： | 马力,戴聪明,唐超礼,苗锡奎,魏合理.MODTRAN5分子吸收模式的计算精度数值评估[J].大气与环境光学学报,2017,12(5):332-339. |
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| 作者姓名： | 马力 戴聪明 唐超礼 苗锡奎 魏合理 |
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| 作者单位： | (1．中国科学技术大学环境科学与光电技术学院，安徽 合肥 230026；
2．中国科学院安徽光学精密机械研究所中国科学院大气成分与光学重点实验室，安徽 合肥 230031；
3. 中国洛阳电子装备试验中心，光电对抗测试评估技术重点实验室， 河南 洛阳 471003) |
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| 基金项目： | 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) |
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| 摘 要： | 大气辐射传输软件MODTRAN5较以前版本光谱分辨率从2 cm-1提高到0.2 cm-1，为了检验MODTRAN5分子吸收的计算精度，用精确的逐线积分法LBLRTM做参考，模拟比较了MODTRAN5计算的大气光谱透过率。结果表明：MODTRAN5软件计算的大气透过率与LBLRTM计算结果的均方根误差总体上不超过0.02，但在有些波段最大误差可达0.03以上,如二氧化碳4.3 μm吸收带，误差值为0.0377。
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| 关 键 词： | MODTRAN5 大气分子吸收 计算精度 |
| 收稿时间： | 2016-03-10 |
| 修稿时间： | 2016-04-08 |
Numerical Evaluation of Precision of Atmospheric Molecular Absorption Calculated by MODTRAN5 Band Model |
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| 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. |
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| Authors: | MA Li DAI Cong-Ming TANG Chao-Li MIAO Ti-Kui WEI He-Li |
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| Affiliation: | (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) |
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| 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. |
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| Keywords: | MODTRAN5 atmospheric molecular absorption calculating precision |
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