首先阐述辐照度法在大气环境监测中的应用价值及其测量原理和方法.其次，应用VF921-256光谱辐射计，通过实验研究反演获取了大气环境监测中比较关心的一些特性参数，如气溶胶光谱光学厚度、臭氧柱总量、漫射辐射与总辐射比以及气溶胶谱分布等.最后讨论了辐照度法在大气环境监测应用中需要考虑的几个影响因素.

First,the applicationvalues,measurement fundamentals and process of the irradiance based method wereexpounded,when it was used in observation of atmospheric environment(OAE).Second,basedon the experiment study by using the VF921-256 spectrometer,some character isticparameters,such as aerosol spectral optical deepth,ozone column content,diffuse-to-global irradiance ratio and aerosol size distribution were retrieved,which arenecessary to OAE. Finally,some error sources which should be considered in OAE werediscussed.