Concept for a hyperspectral remote sensing algorithm for floating marine macro plastics

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Original languageEnglish
Pages (from-to)255–262
Number of pages7
JournalMarine Pollution Bulletin
Volume126
Early online date20 Nov 2017
DOIs
StatePublished - Jan 2018

    Research areas

  • Plastic debris, Remote sensing, Marine environment, Pollution

Abstract

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.

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© 2017 Elsevier Ltd.

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