近岸浑浊水体大气校正算法研究进展  

Research Progress on the Atmospheric Correction Algorithms of Ocean Color Remote Sensing for Turbid Coastal Waters

作　　者：黄筱灿 朱建华[1] 李铜基[1] 高飞[1] 李军[1] Huang Xiaocan;Zhu Jianhua;Li Tongji;Gao Fei;Li Jun(National Ocean Technology Center,Office of Remote Sensing&Mapping Technology,Tianjin,China)

机构地区：[1]国家海洋技术中心,天津300112

出　　处：《海洋技术学报》2018年第6期118-126,共9页Journal of Ocean Technology

基　　金：国家重点研发计划资助项目(2016YFC1400906)

摘　　要：大气校正问题是海洋光学遥感的关键技术问题之一。精确的大气校正是实现高精度水色信息反演的前提。I类水体的大气校正算法发展相对成熟,其假设近红外(NIR)波段离水辐亮度为零,从而将NIR波段的大气程辐射外推至可见光(VIS)波段求出离水辐亮度实现大气校正。但是,II类水体由于受到悬浮物(TSM)和黄色物质(CDOM)的影响,其大气校正相对复杂。文中概述了国内外近岸浑浊水体大气校正算法的研究现状及应用效果,总结了各种算法的特点、优势和局限性。文中还提出了浑浊水体大气校正研究需要解决的关键问题,并展望了该领域未来的发展趋势和方向。Atmospheric correction is one of key techniquesin ocean color remote sensing.The accurate atmospheric correction is the premise of ocean color parameters extraction with high accuracy.For case I waters,the algorithms have already developed into a rather mature stage,it estimates the aerosol scattering radiances from two nearinfrared bands(NIR)based on the assumption that the water-leaving radiances at these twoNIR bands are negligible,and then extrapolate NIR atmospheric path radiance into the visible spectrum(VIS)in the atmosphericcorrection of the imagery.However,in case II waters,due to the total suspended matter(TSM)and colored dissolved organic matter(CDOM),the algorithms are more complex than case I waters.In this paper,the detailed review on domestic and foreign atmospheric correction algorithms for case II waters and application effects are introduced,summarizing a variety of algorithms'features,advantages and limitations,discussing some key issues and benefical suggestions of atmospheric correction of ocean color remote sensing,finally prospecting the future development trends and research directions of this field.

关 键 词：海洋光学 大气校正算法 II类水体 气溶胶辐射贡献 

分 类 号：P407.4[天文地球—大气科学及气象学]