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黄色物质是中国近海水体光学特性的重要影响因素。基于在中国近海海洋光学调查中获取的908个站位的黄色物质吸收系数数据,对黄色物质440nm吸收系数(ag(440))进行了分析,研究表明:(1)在封闭或半封闭海湾以及河口海域的ag(440)较其它海域明显偏大。(2)ag(440)占水体440nm总吸收系数(at(440))的百分比值分布特点与ag(440)的分布特点呈相反的趋势,即ag(440)越大,其对水体总吸收的贡献越小。
Yellow matter is an important factor affecting the optical properties of offshore waters in China. The absorption coefficient (ag (440)) of the yellow substance at 440 nm was analyzed based on the yellow material absorption coefficient data of 908 stations obtained from the offshore optics survey of China offshore. The results show that: (1) In the closed or semi-enclosed bay and The ag (440) in estuarine waters is significantly larger than the other waters. (4) The percentage distribution of ag (440) at 440 nm in water shows a tendency opposite to that of ag (440), that is, the greater the ag (440) The smaller the contribution.