中文摘要：

利用更新的高层大气辐射传输软件（SHARC）中的非局域热平衡辐射传输模式模拟了SABER传感器观测的CO215μm、4．3μm宽带通道临边辐亮度，并与相应的SABER实测数据进行了对比分析。讨论了CO2non—LTE辐射传输的一般特性；验证了SHARC的可靠性，确定了其适用范围。在一定的精度要求下，利用SHARC模式可以较准确地模拟所有中纬度大气条件的c0215μm、4．3μm带临边辐射特性。而若要更精确地模拟中高层大气c02non—LTE辐射特性并应用到极地夏季等极端大气条件下，在提高该高度大气参数精度的同时，改进模式的算法也是必要的。

英文摘要：

The profiles of spectral pass bands＇ limb radiance by SABER （Sounding of the Atmosphere using Broadband Emission Radiometry） were simulated in the bands of 15 μm and 4.3 μm emission for CO2 by using the updated software of SHARC, and the simulated results were compared with corresponding SABER measurements to analyze the CO2 non-LTE radiative transfer properties and to validate the model. The comparisons show that SHARC can simulate the middle latitude atmosphere condition＇s CO2 limb radiation with a reasonable accuracy for applications. However, for some special atmosphere conditions, such as Arctic summer＇s atmosphere, the model has some deviations because of its algorithm＇s shortcoming. It is expected to improve the algorithm to contain more sophisticated chemical-kinetic processes and achieve better middle and upper atmospheric parameters, which make more accurate simulation of non-LTE radiative transfer properties.