Box M A, Deepak A
Appl Opt. 1979 May 1;18(9):1376-82. doi: 10.1364/AO.18.001376.
Inversion of solar almucantar data is a simple and practical method of obtaining aerosol size distributions. In this paper, we have inverted a number of sets of simulated data, using the standard single scattering approximation, to test the errors involved in ignoring multiple scattering. We have also inverted the data using two techniques: one, a modification of the method proposed by Deirmendjian and Sekera; and the other that of McPeters and Green. Inversion results strongly suggest that the accuracy of the retrieved size distribution can be significantly improved by use of our modified Deirmendjian-Sekera approach, in which multiple scattering by molecules is included along with single scattering by molecules and aerosols.
反演太阳等高圈数据是获取气溶胶粒径分布的一种简单实用的方法。在本文中，我们使用标准的单次散射近似反演了多组模拟数据，以测试忽略多次散射所涉及的误差。我们还使用了两种技术对数据进行反演：一种是对Deirmendjian和Sekera提出的方法的改进；另一种是McPeters和Green的方法。反演结果强烈表明，使用我们改进的Deirmendjian-Sekera方法可以显著提高反演粒径分布的准确性，该方法同时考虑了分子的单次散射和气溶胶的单次散射以及分子的多次散射。
