| 红外望远镜站址大气传输和环境背景特性的测量分析研究 |
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| 引用本文： | 戴聪明,张志勇,马力,冯志伟,魏合理.红外望远镜站址大气传输和环境背景特性的测量分析研究[J].红外与激光工程,2016,45(12):1204005-1204005(7). |
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| 作者姓名： | 戴聪明 张志勇 马力 冯志伟 魏合理 |
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| 作者单位： | 1.中国科学院安徽光学精密机械研究所 中国科学院大气成分和光学重点实验室,安徽 合肥 230031; |
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| 基金项目： | 空间目标测量重点实验室开放基金 |
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| 摘 要： | 大口径的地基红外望远镜必须安装在具有良好大气条件的观测台站才能充分发挥其性能，天空背景辐射和大气传输特性是地基红外望远镜站址选择所需考虑的重要内容。采用消光-小角度散射法在西藏羊八井实测了太阳直接红外辐射和大气背景红外辐射，并根据备选站点的大气参数，采用CART软件计算了当地8~14 m波段整层垂直大气的光谱透过率、太阳直接光谱辐射和地面大气垂直向下的背景光谱辐射，以及相关量的波段积分值，这些结果有助于地基红外太阳望远镜的站址选择。
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| 关 键 词： | 红外天文望远镜 CART 太阳直接辐射 大气透过率 |
| 收稿时间： | 2016-04-10 |
Measuring and analysis of atmospheric transfer and environment background character on infrared telescope site |
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| Affiliation: | 1.Key Laboratory of Atmospheric Composition and Optical Radiation,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China;2.Key Laboratory of Solar Activity,National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100049,China;3.School of Environmental Sciences and Optoelectronic Technology,University of Science and Technology of China,Hefei 230031,China |
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| Abstract: | Selecting a fine atmospheric site is very important for ground-based infrared astronomy. The sky background radiance and atmospheric transmittance are important factors for selecting site. Combined observations of solar spectral extinction and forward angular scattering were presented with ground-based FTIR on Yangbajing, Tibet. The direct solar irradiance and atmospheric background radiance were showed on 8-14 m band. According to the atmospheric parameters, the direct solar radiance, atmospheric spectral transmittance and background radiance of selecting sites were compared by CART on long-wave infrared band. These will be useful to select a site for ground-based infrared solar telescope. |
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