Waggoner A P, Ahliquist N C, Charlson R J
Appl Opt. 1972 Dec 1;11(12):2886-9. doi: 10.1364/AO.11.002886.
In urban Seattle, simultaneous measurements were made of backscatter using a ruby laser radar and of the scattering portion of extinction using an integrating nephelometer. Both instruments were calibrated allowing separation of molecular and aerosol contributions to the two scatter coefficients. During the period of the experiment, backscatter and the scattering portion of extinction were well correlated at relative humidities less than 70%. For the aerosol, the ratio of backscatter to the scattering portion of extinction was only one-third that predicted from spherical particle Mie calculations for a power law size distribution aerosol.
在西雅图市区，使用红宝石激光雷达同步测量了后向散射，并使用积分浊度计测量了消光的散射部分。两台仪器都经过了校准，从而能够区分分子和气溶胶对两个散射系数的贡献。在实验期间，相对湿度低于70%时，后向散射与消光的散射部分具有良好的相关性。对于气溶胶，后向散射与消光的散射部分之比仅为幂律粒径分布气溶胶的球形粒子米氏计算预测值的三分之一。
