用光谱辐射计测量大气光学厚度的研究

本文给出了用光谱辐射计VF921-256测量大气光学厚度的实验结果，并对其与太阳辐射计DTF-1的同步测量结果进行了比对。实验结果表明：在比较好的大气条件以及对VF921-256测量中所应用的参考板的非朗伯特性进行校正后，两种方法的测量结果符合得较好。因此，在一定的误差范围内，VF921-256可以用于辐射校正中对大气光学厚度的同步测量。最后，本文对上面两种方法各自的测量误差也进行了进一步的分析讨论。

The Study on Measuring the Atmopheric Optical Depth Using a Spectroradiometer

Some results of the atmospheric optical depth(AOD) from spectroradiometer VF921-256(with a reference panel) are reported here and compared with the simutaneous results from solar radiometer DTF-1. It is shown that both results keep a good agreement with each other provided that the atmospheric conditions are good, and the reflectance factors of the reference panel are used to correct the mesurement data of VF921-256 for effects of non-lambertiar. properties of the panel. Therefore, within a certain accuracy range, VF921-256 can be used to measure the AOD simutaneously during the radiometric calibration. Finally, the errors of both methods are analized and disccused.