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本文介绍了高分辨率大气传输模型FASCOD2，详细讨论了模型的特点，进行了不同大气传输模型的比较。作为PASCOD2的一个应用实例，计算了碘激光大气透过率并与实验测量资料作了比较，给出典型大气状况下水平传输和斜程传输的大气精细光谱结构的计算结果。提出了在农村气溶胶模式情况下利用常规气象资料求取碘激光大气透过率的简便方法。
In this paper, the high-resolution atmospheric transmission model FASCOD2 is introduced. The characteristics of the model are discussed in detail. The comparison of different atmospheric transmission models is carried out. As an application example of PASCOD2, the atmospheric transmittance of iodine laser is calculated and compared with the experimental measurement data. The calculation results of atmospheric fine spectral structure of horizontal transmission and oblique transmission under typical atmospheric conditions are given. A simple and convenient method to get the atmospheric transmittance of iodine laser using conventional meteorological data under the condition of rural aerosol model is proposed.