Research on the optical properties and sensitivity of the middle and upper limb atmospheric characteristics

Chen Wang; Shunping Chen; Congming Dai; Yuxuan Zhang; Wentao Lian; Zhen Sun; Heli Wei

doi:10.1117/12.3018548

30 April 2024 Research on the optical properties and sensitivity of the middle and upper limb atmospheric characteristics

Chen Wang, Shunping Chen, Congming Dai, Yuxuan Zhang, Wentao Lian, Zhen Sun, Heli Wei

Author Affiliations +

Proceedings Volume 13157, Sixth Conference on Frontiers in Optical Imaging and Technology: Applications of Imaging Technologies; 1315716 (2024) https://doi.org/10.1117/12.3018548
Event: Sixth Conference on Frontiers in Optical Imaging Technology and Applications (FOI2023), 2023, Nanjing, JS, China

Abstract

As aerospace detection technology evolves, limb optical detection is increasingly becoming a focal point of research, attributed to its high spatial coverage and elevated vertical resolution. Based on the SCIATRAN limb atmospheric radiation model, simulation analyses of limb radiation transmission characteristics in the middle and upper atmosphere were conducted for both clear and cloudy conditions in the visible to near-infrared spectrum. The study results indicate that observational tangent height and solar zenith angle are important parameters affecting limb radiation brightness in the middle and upper atmosphere, with limb radiation brightness showing a decreasing trend as tangent height increases; in the visible light spectrum, it gradually weakens with increasing solar zenith angle, but in the near-infrared spectrum, it first decreases and then increases. The presence of aerosols and cirrus clouds significantly affects the mid-to-high altitude atmospheric limb radiation brightness. Under stratospheric aerosol conditions, radiation brightness can increase up to 2744.31% compared to background conditions, and under cirrus clouds with an optical thickness of 1, the increase in radiation brightness can be up to 13.78 times compared to clear sky conditions. The study delves into and analyzes the impact of particle optical properties on limb atmospheric background radiation, offering theoretical and data foundations for comprehending its spectral characteristics and designing limb detectors.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Chen Wang, Shunping Chen, Congming Dai, Yuxuan Zhang, Wentao Lian, Zhen Sun, and Heli Wei "Research on the optical properties and sensitivity of the middle and upper limb atmospheric characteristics", Proc. SPIE 13157, Sixth Conference on Frontiers in Optical Imaging and Technology: Applications of Imaging Technologies, 1315716 (30 April 2024); https://doi.org/10.1117/12.3018548

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