Ground-based infrared spectroscopic measurements of atmospheric hydrogen cyanide
Ground-based infrared spectroscopic measurements of atmospheric hydrogen cyanide
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大气氰化氢的地面红外光谱测量
DOI：
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发表时间：
1982
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通讯作者：
G. Stokes
中科院分区：
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作者：
C. Rinsland;M. A. Smith;P. Rinsland;A. Goldman;J. Brault;G. Stokes
在基特峰国家天文台（海拔 2095 m）的日出和日落附近用分辨率为 0.01 cm−1 的傅里叶变换光谱仪记录的太阳吸收光谱中，检测到了氰化氢 ν3 波段的许多谱线。对两个最强和最好的分离品系的分析得出了 Kitt Peak 上方 HCN 垂直柱丰度的值为 2.73×1015 分子 cm−2。该值的准确度估计为±25%。这一结果与 Coffey、Mankin 和 Cicerone (1981) 得出的平流层 HCN 浓度相结合，得出 2 至 12 km 之间 HCN 平均混合比为 166 万亿体积份。这是首次测定非城市对流层中的 HCN 浓度。
A number of lines of the ν3 band of hydrogen cyanide have been detected in solar absorption spectra recorded near sunrise and sunset at Kitt Peak National Observatory (elevation 2095 m) with a 0.01 cm−1 resolution Fourier transform spectrometer. Analysis of two of the strongest and best isolated lines has led to a value of 2.73×1015 molecules cm−2 for the vertical column abundance of HCN above Kitt Peak. The accuracy of this value is estimated as ±25%. This result, combined with the stratospheric concentration of HCN derived by Coffey, Mankin, and Cicerone (1981), yields 166 parts per trillion by volume for the average mixing ratio of HCN between 2 and 12 km. This is the first determination of the HCN concentration in the nonurban troposphere.