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首页> 外文期刊>Applied optics >Spectral airglow temperature imager (SATI): a ground-based instrument for the monitoring of mesosphere temperature
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Spectral airglow temperature imager (SATI): a ground-based instrument for the monitoring of mesosphere temperature

机译：光谱气辉温度成像仪（SATI）：一种用于监测中层温度的地面仪器

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The spectral airglow temperature imager is a two-channel, Fabry-Perot spectrometer with an annular field of view and a cooled CCD detector. The detected fringe pattern contains spectral information in the radial direction and azimuthal spatial information from the annular field of view. The instrument measures the rotational temperature from the O-2 atmospheric (0,1) nightglow emission layer at 94 km and from the Q branch of the OH Meinel (6,2) band emission layer at 87 km. The method for temperature derivation is based on the temperature dependence of the line-emission rates. This dependence allows a determination of the temperature by a least-squares fit of the measured spectrum to a set of synthetic spectra, an approach that minimizes the effect of noise from the sky background and the detector. The spectral airglow temperature imager was developed to meet a need for monitoring the role of the mesosphere in climate variability through long-term observation of the mean temperature and the gravity waves from a single station, as well as large-scale wave perturbations through the use of multiple stations. (C) 2004 Optical Society of America.
机译：光谱气辉温度成像仪是具有环形视场和冷却CCD检测器的两通道Fabry-Perot光谱仪。从环形视场中，检测到的条纹图案包含径向的光谱信息和方位空间信息。该仪器在94 km处测量O-2大气（0,1）夜光发射层的旋转温度，在87 km处测量OH Meinel（6,2）波段发射层的Q分支的旋转温度。温度推导方法基于线路发射速率的温度依赖性。这种依赖性允许通过将所测光谱与一组合成光谱进行最小二乘拟合来确定温度，这种方法可以最大程度地减少来自天空背景和探测器的噪声影响。光谱气辉温度成像仪的开发是为了满足对中层大气在气候变化中的作用的监控需求，方法是长期观察单个站点的平均温度和引力波，以及通过使用观测到的大范围波扰动。多个电台。 （C）2004年美国眼镜学会。

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