Sun De-Yong, Li Yun-Mei, Wang Qiao, Le Cheng-Fen, Huang Chang-Chun, Wang Li-Zhen
Key Laboratory of Virtual Geographic Environment of Education Ministry, Nanjing Normal University, Nanjing 210097, China.
Ying Yong Sheng Tai Xue Bao. 2008 May;19(5):1117-24.
Inherent optical property is one of the important properties of water body, which lays the foundation for the establishment of water color analytical models. By using quantity filter technology (QFT) and BB9 backscattering meter, the absorption coefficients of chromophoric dissolved organic matter (CDOM) and total suspended matters (TSM) and the backscattering coefficient of TSM in the water body at Meiliang Bay of Taihu Lake were measured in summer and winter. Based on the spectral comparison of the absorption and backscattering coefficients, their differences between the two seasons were demonstrated, and the reasons that caused these differences were also explored in the context of their relations to the changes in water quality. Consequently, water environment condition could be revealed by using the inherent optical property. The relationship between the backscattering coefficient and the TSM concentration was established, which could provide supporting coefficients to the analytical models to be developed.
固有光学特性是水体的重要特性之一，为水色分析模型的建立奠定了基础。利用定量滤膜技术（QFT）和BB9后向散射仪，对太湖梅梁湾水体在夏季和冬季的发色溶解有机物（CDOM）和总悬浮物（TSM）的吸收系数以及TSM的后向散射系数进行了测量。基于吸收系数和后向散射系数的光谱比较，论证了两个季节之间的差异，并在它们与水质变化的关系背景下探讨了造成这些差异的原因。因此，利用固有光学特性可以揭示水环境状况。建立了后向散射系数与TSM浓度之间的关系，可为待开发的分析模型提供支持系数。
