Concept for a hyperspectral remote sensing algorithm for floating macro plastics
Concept for a hyperspectral remote sensing algorithm for floating macro plastics
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DOI：
10.1016/j.marpolbul.2017.11.011
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发表时间：
2018-01-01
影响因子：
5.8
通讯作者：
Gibb, Stuart
中科院分区：
文献类型：
--
作者：
Goddijn-Murphy, Lonneke;Peters, Steef;Gibb, Stuart
全球越来越关注塑料对海洋的化学、生物和生态影响。遥感有潜力提供长期的全球监测，但对于海洋塑料，它仍处于早期阶段。在可见光（维斯）至短波红外（SWIR）光谱范围内，海洋大塑料的高光谱遥感已取得一些进展。我们提出了一个反射模型的阳光与海洋表面散落宏观塑料，几何光学和塑料和海水的光谱特征的基础上。这是利用空气中的光反射测量开发海洋塑料遥感算法的第一步。我们的模型考虑了塑料垃圾的颜色、透明度、反射率和形状。这个概念模型可以帮助设计实验室，现场和地球观测测量的可见-短波红外光谱和解释的结果。
There is growing global concern over the chemical, biological and ecological impact of plastics in the ocean. Remote sensing has the potential to provide long-term, global monitoring but for marine plastics it is still in its early stages. Some progress has been made in hyperspectral remote sensing of marine macroplastics in the visible (VIS) to short wave infrared (SWIR) spectrum. We present a reflectance model of sunlight interacting with a sea surface littered with macro plastics, based on geometrical optics and the spectral signatures of plastic and seawater. This is a first step towards the development of a remote sensing algorithm for marine plastic using light reflectance measurements in air. Our model takes the colour, transparency, reflectivity and shape of plastic litter into account. This concept model can aid the design of laboratory, field and Earth observation measurements in the VIS-SWIR spectrum and explain the results.