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后向散射系数是水体重要的固有光学量之一,是水色反演半分析模型的重要输入参数,与水体组分有着密切关系。回顾了近年来国内外有关水体后向散射特性的研究进展,主要包括纯水、浮游植物和悬浮泥沙等无机颗粒物的后向散射特性,以及不同颗粒物的后向散射光谱变化性等。此外,还阐述了后向散射系数的理论基础和测量方法,并探讨了影响水体后向散射特性的影响因子,最后提出了水体后向散射的研究方向和发展前景。
The backscattering coefficient is one of the important intrinsic optical quantities of water and is an important input parameter to the semi-analytical model of aquifer inversion, which is closely related to the water body composition. The research progress of the backscattering characteristics of water bodies at home and abroad in recent years is reviewed, including the backscattering characteristics of inorganic particles such as pure water, phytoplankton and suspended sediment, and the variability of the backscattering spectra of different particles. In addition, the theoretical basis and measurement method of backscattering coefficient are also discussed. The influencing factors on the backscattering characteristics of water bodies are also discussed. Finally, the research direction and development prospect of backscattering of water bodies are proposed.