SIMULTANEOUS DETERMINATION OF AEROSOL SIZE DISTRIBUTION AND REFRACTIVE INDEX AND SURFACE ALBEDO FROM RADIANCE——PART Ⅱ: APPLICATION

This paper presents and analyzes experimental results in simultaneous determination of atmospheric columnar aerosol size distribution, refractive index and surface albedo by use of the radiance data in almucantar measured by a radiometer. 32 groups of data measured in Beijing during winter show that the imaginary part of refractive index for 0.6943 μm wavelength ranges from 6.022 to 0.079 with a mean of 0.0527. The mean real part and surface albedo are 1.537 and 0.287, respectively. The imaginary part was found to be less in autumn than that in winter, especially after raining. For 0.399 μm and 0.6943 μm wavelengths, the mean surface albedos are 0.101 and 0.222, and the mean imaginary parts are 0.0241 and 0.0129, respectively.