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A method for qualitative mapping of thick oil spills using imaging spectroscopy

Roger N. Clark·Gregg A. Swayze·Ira Leifer·K. Eric Livo·Sarah Lundeen·Michael Eastwood·Robert O. Green·Raymond F. Kokaly·Todd Hoefen·Charles Sarture·Ian McCubbin·Dar Roberts·Denis Steele·Thomas Ryan·Roseanne Dominguez·Neil Pearson·The Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) Team
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Abstract

A method is described to create qualitative images of thick oil in oil spills on water using near-infrared imaging spectroscopy data. The method uses simple 'three-point-band depths' computed for each pixel in an imaging spectrometer image cube using the organic absorption features due to chemical bonds in aliphatic hydrocarbons at 1.2, 1.7, and 2.3 microns. The method is not quantitative because sub-pixel mixing and layering effects are not considered, which are necessary to make a quantitative volume estimate of oil.

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Roger N. Clark, Gregg A. Swayze, Ira Leifer, K. Eric Livo, Sarah Lundeen, Michael Eastwood, Robert O. Green, Raymond F. Kokaly, Todd Hoefen, Charles Sarture, Ian McCubbin, Dar Roberts, Denis Steele, Thomas Ryan, Roseanne Dominguez, Neil Pearson, The Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) Team. 2010. A method for qualitative mapping of thick oil spills using imaging spectroscopy. https://doi.org/10.3133/ofr20101101

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