Zhang Xiaodong, Stramski Dariusz, Reynolds Rick A, Blocker E Riley
Appl Opt. 2019 Feb 1;58(4):991-1004. doi: 10.1364/AO.58.000991.
We measured the linearly polarized light scattering of pure water and seawater at various salinities and estimated the depolarization ratio using five different methods of data analysis after removing the scattering due to contamination by residual nanoparticles. The depolarization ratio values (δ) estimated for pure water using these different methods are largely consistent with each other and result in a mean value of 0.039±0.001. For seawater, our results reveal a trend of a slight linear increase of δ with salinity (S), δ=0.039+a×S, where a varies in the range of 1×10 to 2×10 between the methods.
我们测量了纯水和不同盐度海水的线偏振光散射，并在去除残留纳米颗粒污染导致的散射后，使用五种不同的数据分析方法估算了去极化率。使用这些不同方法估算的纯水去极化率值（δ）彼此基本一致，平均值为0.039±0.001。对于海水，我们的结果显示δ随盐度（S）呈轻微线性增加的趋势，即δ = 0.039 + a×S，其中不同方法之间a的取值范围在1×10至2×10之间。
