Oil Droplet Clouds Suspended in the Sea: Can They Be Remotely Detected?
Department of Physics at Faculty of Marine Engineering, Gdynia Maritime University, Morska Street 81-87, 81-225 Gdynia, Poland
Academic Editors: Deepak R. Mishra, Xiaofeng Li and Prasad S. Thenkabail
Remote Sens. 2016, 8(10), 857; https://doi.org/10.3390/rs8100857
Received: 4 July 2016 / Revised: 14 September 2016 / Accepted: 10 October 2016 / Published: 18 October 2016
(This article belongs to the Special Issue Remote Sensing and Oil Spill Response: Leveraging New Technologies to Safeguard the Environment)
Oil floating on the sea surface can be detected by both passive and active methods using the ultraviolet-to-microwave spectrum, whereas oil immersed below the sea surface can signal its presence only in visible light. This paper presents an optical model representing a selected case of the sea polluted by an oil suspension for a selected concentration (10 ppm) located in a layer of exemplary thickness (5 m) separated from the sea surface by an unpolluted layer (thickness 1 m). The impact of wavelength and state of the sea surface on reflectance changes is presented based on the results of Monte Carlo ray tracing. A two-wavelength index of reflectance is proposed to detect oil suspended in the water column (645–469 nm).
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Keywords:
oil; seawater; suspension; detection; radiance reflectance
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MDPI and ACS Style
Otremba, Z. Oil Droplet Clouds Suspended in the Sea: Can They Be Remotely Detected? Remote Sens. 2016, 8, 857.
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