Brown O B, Gordon H R
Appl Opt. 1974 Dec 1;13(12):2874-81. doi: 10.1364/AO.13.002874.
Simultaneous measurements of the size distribution and volume scattering function of particles in clear coastal water are used to estimate a particle size-refractive index distribution. Various possibilities of the refractive index distribution and the observed particle distribution are studied systematically using Mie theory. The resulting model has minerals in mid-sizes and organic material in large and small sizes, but does not yield the correct dependence of scattering on wavelength. By assuming the existence of minerals or organics in sizes too small to be measured by the particle counter, two other models are developed, both of which yield acceptable wavelength dependence of scattering. The results of the three models are combined to provide limits on the size-refractive index distribution of the particles. Within these limits, volume scattering functions computed for the particles show good agreement with the measurements.
对清澈沿海水体中颗粒的尺寸分布和体积散射函数进行同步测量，以估算颗粒尺寸 - 折射率分布。利用米氏理论系统地研究了折射率分布和观测到的颗粒分布的各种可能性。所得模型显示中等尺寸的颗粒为矿物质，大尺寸和小尺寸的颗粒为有机物质，但未得出散射对波长的正确依赖关系。通过假设存在尺寸过小而无法用颗粒计数器测量的矿物质或有机物，又开发了另外两个模型，这两个模型都得出了可接受的散射对波长的依赖关系。将这三个模型的结果结合起来，以给出颗粒尺寸 - 折射率分布的范围。在这些范围内，为颗粒计算的体积散射函数与测量结果显示出良好的一致性。
