Comparison of LTE and non-LTE Model for Limb Infrared Radiation Simulation of Middle and Upper Atmosphere

Abstract

Abstract: The simulation algorithms for limb infrared radiation in the middle and upper atmosphere are
investigated using strategic high-altitude radiance code (SHARC) and combined atmospheric
radiative transfer (CART) model. The results confirm the availability of CART limb model
preliminarily. The comparison shows that local thermodynamics
equilibrium(LTE) model is effective under at least 45 km
tangent altitude for the main limb infrared radiance simulation, while non-local thermodynamics equilibrium(non-LTE) model
should be applied starting from different altitudes for the different infrared bands
and atmospheric conditions. For 15 $\mu$m band, LTE model can be effective under at
least 80 km tangent altitude; but for 4.3 $\mu$m band and 9.6 $\mu$m band, non-LTE model
should be applied about above the stratosphere.

Key words: atmospheric optics, middle and upper atmosphere, infrared radiation, local thermodynamics
equilibrium, non-local thermodynamics equilibrium

CLC Number:

O432.1

References

1
Feofilov A G, Kutepov A A. Infrared radiation in the mesosphere and lower thermosphere:
energetic effects and remote sensing [J]. Surveys in Geophysics, 2012, 33(6): 1231-1280.

2
Goussev O. Non-LTE Diagnostics of the Infrared Observations of the Planetary Atmosphere [D].
Munchen: Doctorial Dissertation of Ludwig-Maximilians-Universitat Munchen Dissertation, 2003.

3
Sharma R D, O'Neil R, Gardiner H, et al. Midcourse space experiment: auroral enhancement of
nitric oxide medium-wave infrared emission observed by the Spatial Infrared Imaging Telescope
III radiometer [J]. Journal of Geophysical Research: Space Physics, 2001, 106(A10): 21351-21365.

4
O'Neil R R, Winick J R, Picard R H, et al. Auroral NO+ 4.3 $mu$m emission observed from the
midcourse space experiment: multiplatform observations of 9 February 1997 [J].
Journal of Geophysical Research: Space Physics, 2007, 112(A6).

5
Picard R H, Dewan E M, Winick J R, et al. Optical/Infrared Signatures for Space-Based Remote
Sensing [R]. Air Force Research Lab Hanscom Afb ma Space Vehicles Directorate, 2007.

6
Gruninger J H, Sundberg R L, Acharya P K, et al. User's Manual For SHARC-4 The Strategic
High-Altitude Radiance Code [R]. Phillips Lab Hanscom Afb Ma, 1997.

7
Sundberg R L, Duff J W, Gruninger J H, et al. SHARC, a model for calculating atmospheric
infrared radiation under non-equilibrium conditions [R]. The Upper Mesosphere and Lower
Thermosphere: A Review of Experiment and Theory, 1995: 287-295.

8
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]. Optics Express, 2007, 15(13): 8360-8370.

9
Wei Heli, Chen Xiuhong, Dai Congming. Combined atmospheric radiative transfer (CART) model and its
applications [J]. Infrared and Laser Engineering, 2012, 41(12):3360-3366.
魏合理, 陈秀红, 戴聪明. 通用大气辐射传输软件(CART)及其应用[J]. 红外与激光工程, 2012, 41(12):3360-3366.

10
Wei Heli, Dai Congming. Research of atmospheric transfer correction in radiance measurement: atmospheric
radiative transfer model and the analysis of key atmospheric parameters [J]. Infrared and Laser Engineering, 2014, 43(3): 884-890.
魏合理, 戴聪明. 辐射特性测量大气传输修正研究: 大气辐射传输模式和关键大气参数分析[J]. 红外与激光工程, 2014, 43(3): 884-890.

11
Wei Heli, Dai Congming. Research of atmospheric transfer correction in radiance measurement: atmospheric
transfer correction system [J]. Infrared and Laser Engineering, 2014, 43(4): 1019-1024.
魏合理, 戴聪明. 辐射特性测量大气传输修正研究: 大气传输修正系统[J]. 红外与激光工程, 2014, 43(4): 1019-1024.

12
Dai Congming, Wei Heli, Chen Xiuhong. Validation of the precision of atmospheric molecular absorption and
thermal radiance calculated by combined atmospheric radiative transfer (CART) code [J]. Infrared and
Laser Engineering, 2013, 42(1):174-180.
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.

13
Dai Congming, Wei Heli, Chen Xiuhong. Validation of atmospheric scattering radiance calculated by combined
atmospheric radiance transfer (CART) code [J]. Infrared and Laser Engineering, 2013, 42(6):1575-1581.
戴聪明, 魏合理, 陈秀红. 通用大气辐射传输软件(CART)大气散射辐射计算精度验证[J]. 红外与激光工程, 2013, 42(6):1575-1581.

14
Shroll R M, Adler-Golden S, Duff J W, et al. User's Manual for SAG-2 SHARC/SAMM Atmosphere Generator [R]. SPEC

[1]	GENG Dan , ZHAO Zengliang , FAN Zhiqiang , WU Zuowei , LI Dongyang , ZHANG Xiangxing. Estimation of refractive index structure constant profile at high altitude in Gobi area based on meteorological rocket sounding data [J]. Journal of Atmospheric and Environmental Optics, 2023, 18(2): 99-107.
[2]	JI Wei∗, QI Linlin, XING Ping, YANG Guopeng. Influence of Clouds Cover on Transmission of Infrared Radiation in Actual Marine Atmosphere [J]. Journal of Atmospheric and Environmental Optics, 2021, 16(2): 88-97.
[3]	WU Shichao1,2, MA Jinji1,2, ZHANG Qunying1,2, YU Haixiao1,2, AN Yuan1,2. Research on Haze and Fog Distinguishing Algorithm Based on\\[0.2cm] Particle Polarization Characteristics [J]. Journal of Atmospheric and Environmental Optics, 2019, 14(3): 221-227.
[4]	. Vertical Distribution Characteristics and Models of Atmospheric Turbulence in Representative Area [J]. Journal of Atmospheric and Environmental Optics, 2018, 13(6): 425-.
[5]	WANG Yu-Ru, MEI Hai-Ping. Experimental Investigation on Retro-Reflective Laser Intensity Distribution and Fluctuations in Turbulent Atmosphere [J]. Journal of Atmospheric and Environmental Optics, 2018, 13(4): 241-249.
[6]	LI Zhen-Zhen, ZHANG Ji. Calculation and Analysis of Typical Types Aerosol Scattering Properties [J]. Journal of Atmospheric and Environmental Optics, 2018, 13(4): 250-257.
[7]	LIU Ze-Yang, LI Xue-Bin, SUN Gang, QIN Wu-Bin, GENG Meng, LU Xian-Yang, LI Jian-Yu, WENG Ning-Quan. Analysis of Seasonal Change Characteristics of Aerosol Optical Depth in Delingha and Hefei [J]. Journal of Atmospheric and Environmental Optics, 2018, 13(3): 185-192.
[8]	ZHANG Hong-Hai, LI Chao, GAO Yi-Bo, FANG Xue-Jing, XIONG Wei, MA Jin-Ji. Research for the High-Level Spatio-Temporal Distribution Characteristics and Its Formation Mechanism [J]. Journal of Atmospheric and Environmental Optics, 2017, 12(4): 292-304.
[9]	SUN Zhen-Yuan, SUN Gang, LIU Qing, LI Xue-Bin, WENG Ning-Quan. Automatic Observation System for Atmospheric Optical Turbulence in the Near Surface Layer [J]. Journal of Atmospheric and Environmental Optics, 2017, 12(2): 109-113.
[10]	MEI Shi-Yu, MA Jin-Ji, ZHANG Xin. Analysis on Spatiotemporal Variation Characteristics of NO2 Concentrations in Beijing-Tianjin-Hebei Region During APEC [J]. Journal of Atmospheric and Environmental Optics, 2016, 11(4): 281-287.
[11]	GAO Yi-Bo, MEI Shi-Yu, MA Jin-Ji, WU Shi-Chao, ZHANG Hong-Hai, XU Dan-Dan. Spatiotemporal Variations of SO2 over China by OMI Observations During 2005~2012 [J]. Journal of Atmospheric and Environmental Optics, 2016, 11(4): 299-312.
[12]	LI Zhi-Chao, ZONG Fei, QIANG Xi-Wen, LV Wei-Yu, LIU Wei-Feng. Inversion and Analysis of Atmospheric Aerosol Optical Depth in Gobi Area of Xinjiang [J]. Journal of Atmospheric and Environmental Optics, 2016, 11(1): 14-21.
[13]	XU Qiang, WANG Dong-Qin, WU Zhen-Sen. Research Progress of Optical Scattering Transmission Properties of Haze and Other High Concentration of Atmospheric Aerosol [J]. Journal of Atmospheric and Environmental Optics, 2015, 10(6): 437-444.
[14]	WU Hao, WEI Yi-Nan, GONG Ming-Yan, MA Jin-Ji. Research on Haze Aerosol Particles Polarization Characteristics [J]. Journal of Atmospheric and Environmental Optics, 2015, 10(5): 408-416.
[15]	ZHENG Li-Nan, HU Shun-Xing, HUANG Jian, YUAN Ke-E, SHAO Shi-Sheng. An Improved Circuit Design for Atmospheric CO₂ Balloonsonde [J]. Journal of Atmospheric and Environmental Optics, 2015, 10(5): 432-.