Sullivan James M, Twardowski Michael S
WET Labs, Inc., Department of Research, 70 Dean Knauss Drive,Narragansett, Rhode Island 02882, USA.
Appl Opt. 2009 Dec 10;48(35):6811-9. doi: 10.1364/AO.48.006811.
Analysis of several million particulate volume scattering functions (VSFs) from different field sites around the world's oceans and coastlines revealed that the shape of the VSF in the backward direction was remarkably consistent (5% or less variability at angles between 90 degrees and 170 degrees ). In agreement with theoretical models and past field measurements, the variability of the VSF shape (the VSF normalized to the backscattering coefficient) was found to be lowest between 110 degrees and 120 degrees . This study concludes that under most oceanic conditions, estimates of the particulate backscattering coefficient, using single angle scattering measurements near 110 degrees to 120 degrees and suitable conversion factors, are justified and should have a maximum uncertainty of less than a few percent once instrument noise is accounted for.
对来自全球海洋和海岸线不同实地站点的数百万个颗粒体积散射函数（VSF）进行分析后发现，后向方向的VSF形状非常一致（在90度至170度之间的角度变化率为5%或更低）。与理论模型和过去的实地测量结果一致，发现VSF形状（归一化为后向散射系数的VSF）在110度至120度之间的变化最小。本研究得出结论，在大多数海洋条件下，使用110度至120度附近的单角度散射测量值和合适的转换因子来估计颗粒后向散射系数是合理的，并且一旦考虑仪器噪声，最大不确定性应小于百分之几。
