基于O2分子1.27 μm气辉反演临近空间温度廓线的新方法
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1.烟台大学 物理与电子信息学院;2.中国科学院国家空间科学中心;3.中国科学院精密测量科学与技术创新研究院

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基金项目:

国家自然科学基金项目(面上项目,重点项目,重大项目);山东省高校青年创新技术项目;山东省自然科学基金项目;烟台大学研究生科研创新基金项目


A new method for retrieving the near-space temperature profile based on the 1.27 μm O2 airglow
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Affiliation:

1.School of Physics and Electronic Information, Yantai University;2.National Space Science Center, Chinese Academy of Sciences;3.Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences

Fund Project:

The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan), the Youth Innovation Technology Project of Higher School in Shandong Province, the Natural Science Foundation of Shandong Province, Graduate Innovation Foundation of Yantai University

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    摘要:

    1.27 μm波段O2(a1?g)气辉的辐射强度高、自吸收效应弱,是反演临近空间大气温度的理想目标源。基于O2分子气辉光谱理论以及“剥洋葱”算法,利用扫描成像大气吸收光谱仪(SCIAMACHY)的近红外临边观测数据,成功反演50-100 km区域的大气温度廓线。与SABER、ACE-FTS及激光雷达的观测结果对比表明,在55-85 km的切线高度范围内温度测量误差优于±10 K,而在55 km以下85 km以上空间区域,由于受到自吸收效应、大气散射,以及OH气辉的光谱污染等干扰,温度反演结果出现显著偏差。

    Abstract:

    The high radiation intensity and weak self-absorption effect of the O2(a1?g) airglow in the 1.27 μm band make it an ideal target source for retrieval of the atmospheric temperature in the near-space. Based on the theory of O2 airglow spectral and the "onion-peeling" algorithm, the near-infrared limb-viewing data of the SCanning Imaging Absorption SpectroMeter for Atmospheric CHartographY (SCIAMACHY) were successfully used to retrieve the atmospheric temperature profiles in the range of 50-100 km. Comparison with SABER, ACE-FTS and LIDAR observations shows that the temperature measurement error better than ±10 K in the tangential altitude of 55-85 km. However, in the space region below 55 km and above 85 km, the temperature retrieval results show significance biased due to the influences of self-absorption effects, atmospheric scattering, and spectral contamination from OH airglow.

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  • 收稿日期:2023-06-05
  • 最后修改日期:2023-07-19
  • 录用日期:2023-08-10
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