Technique to improve the accuracy of the retrieval of aerosol size-distribution.

A technique to improve the accuracy of the retrieval of aerosol size-distribution is introduced. This technique includes a wavelength-selecting method and a "function model." The wavelength-selecting method is used to select the suitable wavelengths for the retrieval of aerosol size-distribution, and the function model is used to express the aerosol size-distributions with a fewer parameters. By using this technique, the accuracy of the retrieval of aerosol size-distribution can be improved.