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详细分析了8～12微米大气窗内几种长波长传输测量,以确定因水蒸汽连续区所造成的消光系数。结果表明,对现有的LOWTRAN 大气传输模型要作三种修正。前两项修正包括适当改进纯水蒸汽连续区的吸收,以消除大气加宽的连续区项,最后一项也是主要的一项,在水蒸汽连续区吸收系数中,必须包括所测温度的强烈依赖关系。就10～50公里的波长范围而言,如果三种修正配合得不好,传输范围计算中出现的误差将超过一倍到一千倍以上。
Several long-wavelength transmission measurements in the 8 to 12 micron atmospheric window were analyzed in detail to determine the extinction coefficient due to the continuum of water vapor. The results show that there are three modifications to the existing LOWTRAN atmospheric transport model. The first two amendments, including the appropriate improvement of pure water vapor absorption in the continuous area to eliminate the continuum of atmospheric widening items, the last one is also a major one in the water vapor continuous absorption coefficient, must include the measured temperature is strong Dependencies. For a wavelength range of 10-50 km, if the three corrections do not fit well, the error in the calculation of the transmission range will more than double to one thousand times.