Spectral Characteristics of Weathered Oil Films on Water Surface and Selection of Potential Sensitive Bands in Hyper-Spectral Images

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• 作者：Bingxin Liu ; Ying Li ; Qiang Zhang ; Liang Han
• 关键词：Oil film ; Spectroscopy ; Hyperspectral remote sensing
• 刊名：Journal of the Indian Society of Remote Sensing
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：45
• 期：1
• 页码：171-177
• 全文大小：
• 刊物类别：Earth and Environmental Science
• 刊物主题：Earth Sciences, general; Remote Sensing/Photogrammetry;
• 出版者：Springer India
• ISSN：0974-3006
• 卷排序：45

文摘

This study was an experiment to measure the reflectance data of water and oil films at the 0, 1st, 3rd, 12th, and 48th h of weathering and analyzed the spectral reflectance characteristics of the weathered oil films. Based on the experiment and analysis, the measured data were resampled through the spectral response function of the hyperspectral data. The environmental noise equivalent reflectance difference of the image data was then used to assess the sensitivity of each band for the detection of oil films. The bands that were most effective in detecting oil films in various stages of weathering were assessed. Results indicated that the spaceborne hyperspectral sensor employed in this study had the potential to discriminate among oil films in different stages of weathering. At the 0, 1st, 3rd, and 12th h of weathering, discrimination between water and oil films and among oil films in varying stages of weathering was achieved at the visible and near-infrared bands. After 48 h, the potential sensitive bands were distributed mainly in the near-infrared region. This experiment can provide a method to select bands of hyperspectral data for monitoring oil films.