Research progress and related problems on the acquisition method of total atmospheric transmittance

Zhensong, 曹振松 Cao; Yinbo, 黄印博 Huang; Heli, 魏合理 Wei; Wenyue, 朱文越 Zhu; Ruizhong, 饶瑞中 Rao; Yingjian, 王英俭 Wang

doi:10.3788/irla201948.1203004

Cited by 1 publication

(2 citation statements)

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“…. Thus, obtaining accurate atmospheric transmittance in the infrared band can help refine and improve the optical system design, as well as the system performance evaluation of the infrared detection systems [2,3] 。 The whole-atmosphere spectral transmittance represents an important parameter to express the Atmospheric radiative transfer characteristics and has a wide range of applications in remote sensing detection, atmospheric quality monitoring, and Atmospheric radiation [4] . There is an international database of high-resolution molecular spectral parameters called HITRAN.…”

Section: Introductionmentioning

confidence: 99%

“…The solar radiation reaching the ground consists of both direct radiation through the atmosphere to the ground and some scattered radiation [6,7] . In the narrow field of view, the solar radiation received by the instrument is primarily direct radiation [4,5] 。 Solar radiometers can measure the direct radiation from the sun and sky-scattered radiation at multiple wavelengths simultaneously. They can also calculate the atmospheric optical thickness and transmittance at other wavelengths using their direct solar radiation, sky-scattered spectral properties.…”

Section: Introductionmentioning

confidence: 99%

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Measurement and research for total atmospheric shortwave infrared transmittance of the South China Sea

Lian,

Zhang,

et al. 2023

Third International Computing Imaging Conference (CITA 2023)

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The total atmospheric transmittance of the South China Sea was measured using a Fourier Transform Infrared Spectroradiometer. After measuring the direct solar spectrum data in 1.1-2μm using the Spectroradiometer, the Langley method was employed to extract the atmospheric spectral transmittance of the South China Sea. The Langley method was utilized to extract atmospheric spectral transmittance at different altitudes and angles, and the variation in atmospheric transmittance over the South China Sea was analyzed extensively. The Combined Atmospheric Radiative Transfer (CART) model was used on the above data, to simulate the atmospheric transmittance under similar circumstances and draw a comparison with the previously obtained results. The data obtained from the Spectroradiometer indicates that the slant path atmospheric transmittance is in coherence with the model simulation results, with a negligible absolute error of less than 2.3%. Furthermore, as the solar zenith angle increases, there is a gradual decrease in the transmittance of the entire measurement band. The short-wave atmosphere attenuates rapidly; however, the long-wave attenuation is slow.

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Section: Introductionmentioning

confidence: 99%