中国近海海洋光学特性及其分布  

Discussion on Ocean Optics Properties of Chinese Offshore and Its Distribution Characteristics

作　　者：汪小勇[1] 李铜基[1] 周虹丽[1] 毕大勇[1] 

机构地区：[1]国家海洋技术中心,天津300112

出　　处：《中国海洋大学学报（自然科学版）》2014年第1期104-111,共8页Periodical of Ocean University of China

基　　金："ST11区块海洋光学调查与研究"项目(908-01-ST11);"我国近海海洋光学与遥感调查研究"项目(908-ZC-I-04);国家高技术研究发展计划项目(2008AA09A403)资助

摘　　要：在"我国近海海洋综合调查与评价"的光学调查项目中,通过2006年夏季、冬季和2007年春季、秋季的中国近海海洋光学调查试验,获取了表观光学资料、固有光学资料和相应的辅助资料。利用这些数据,开展了中国近海海洋光学特性及其分布研究工作。(1)通过分析特征波段遥感反射比(Rrs(412)和Rrs(490))的分布情况,发现主要河口有着明显的区域性和季节性变化特点。(2)通过分析遥感反射比光谱资料,发现了不同区域遥感反射比光谱体现了不同的特点,而且成因不同。(3)通过分析400nm水色要素吸收系数分布情况,发现了河流陆源物质输入对近岸非色素颗粒物分布特性有重要影响,其次对黄色物质也有很大的影响,而浮游植物及其腐烂降解的产物对水体中黄色物质浓度产生的影响不大。(4)通过分析400nm水色三要素吸收系数占总吸收系数比例,发现不同海区光学特性的主要影响要素也各不相同。In the optical experiments of ＂Chinese Offsore Investigation and Assessment＂ in summer 2006, winter 2006,spring 2007 and autumn 2007 cruise, the AOFs data,lOPs data and Auxiliary data were ob- tained. Using these data, researches about ocean optics properties of Chinese offshore and its distribution characteristics were carried out. （1）According to characteristics about Rrs （412） and R,s （490）, there are ob- vious seasonal and regional changes in the main River mouth. （2）Analyzing the data of Rrs spectrum of dif- ferent area water, we find that the different Rrs Spectrum embodies different properties, and the cause of formation is different also. （3）According to analyzing the distribution of absorption coefficient about CDOM and de-pigmented particles at 400nm, it shows that the input matter from land plays an important role in distribution characteristics of de-pigmented particles, and next of CDOM, but the phytoplankton and its degradation products has less effect on CDOM. （4） According to analyzing the relative contribution of phytoplankton, CDOM and de-pigmented particles to total absorption coefficient of seawater at 400 nm, it shows that the major influence factor of optic properties is different in different area.

关 键 词：海洋光学 表观光学特性 固有光学特性 中国近海 

分 类 号：P733.3[天文地球—物理海洋学]