Characteristics of the sea ice reflectance spectrum polluted by oil spills based on field experiments in the Bohai Sea

查看全文 作　　者：CHAO [1,2]Jinlong;LIU [3]Chengyu;LI [2,5]Ying;LIN [4]Xia;YAN [2]Yu

机构地区：[1]Institute of Geography Science, Taiyuan Normal University, Yuci 030619, China;[2]State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing 100875, China;[3]Key Laboratory of Spatial Active Opto-electronic Technologies, Shanghai Insitute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China;[4]National Marine Environmental Monitoring Center, State Oceanic Administration, Dalian 116023, China;[5]Institute of City and Environment, Liaoning Normal University, Dalian 116029, China

出　　处：《Acta Oceanologica Sinica》索引2017年第36卷第1期,共7页

基　　金：The National High Technology Research and Development Program(863 Program)of China under contract No.2011AA100505;the Projects of the State Key Laboratory of Earth Surface Progresses and Resource Ecology,Beijing Normal University of China under contract No.2010-KF-08 摘　　要：Oil spilled on the sea ice surface in the Bohai Sea of China is studied through the field measurements of the reflectance of a simulated sea ice-oil film mixed pixel. The reflection characteristics of sea ice and oil film are also analyzed. It is found that the mixed pixel of sea ice and oil film is a linear mixed pixel. The means of extracting sea ice pixels containing oil film is presented using a double-band ratio oil-film sea-ice index(DROSI) and a normalized difference oil-film sea-ice index(NDOSI) through the analysis of the reflectance curves of the sea iceoil film pixel for different ratios of oil film. The area proportion of the oil film in the sea ice-oil film pixel can be accurately estimated by the average reflectance of the band of 1 610–1 630 nm, and the volume of the spilled oil can be further estimated. The method of the sea ice-oil film pixel extraction and the models to estimate the proportion of oil film area in the sea ice-oil film pixel can be applied to the oil spill monitoring of the ice-covered area in the Bohai Sea using multispectral or hyperspectral remote sensing images in the shortwave infrared band(1 500–1 780 nm). 关键词：海上溢油渤海海域反射光谱特征海冰高光谱遥感图像混合像元提取方法反射特性

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Characteristics of the sea ice reflectance spectrum polluted by oil spills based on field experiments in the Bohai Sea

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