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19 February 2016 Electromagnetic scattering and Doppler spectrum simulation of time-varying oil-covered nonlinear sea surface
Pengju Yang, Lixin Guo, Chungang Jia
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Journal of Applied Remote Sensing, Vol. 10, Issue 1, 016015 (February 2016). https://doi.org/10.1117/1.JRS.10.016015
Abstract
Based on the model of Lombardini et al. [J. Atmos. Ocean. Technol.6(6), 882–890 (1989)], which can predict the hydrodynamic damping of rough sea surfaces in the presence of oil films, the influence of sea slicks on the sea surface roughness spectrum and sea surface geometrical structure is examined briefly in the present study. On this basis, the influence of sea slicks on the angular distribution of the bistatic scattering coefficient of sea surfaces and the Doppler spectrum signature of backscattered radar sea-echo is investigated in detail based on a frequency-domain numerical method of the parallel fast multiple method. Simulation results show that Doppler spectrum signatures including Doppler shift and spectral bandwidth of radar sea-echo are significantly affected by sea slicks, which are qualitatively consistent with wave-tank or open sea measurements. Moreover, simulation results indicate that the Doppler spectrum signature is a promising technique for remote sensing of oil films floating on sea surfaces.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE) 1931-3195/2016/$25.00 © 2016 SPIE
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Pengju Yang, Lixin Guo, and Chungang Jia "Electromagnetic scattering and Doppler spectrum simulation of time-varying oil-covered nonlinear sea surface," Journal of Applied Remote Sensing 10(1), 016015 (19 February 2016). https://doi.org/10.1117/1.JRS.10.016015
Published: 19 February 2016
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KEYWORDS
Doppler effect
Scattering
Electromagnetic scattering
Magnesium
Radar
Surface roughness
Wave propagation
CHORUS Article. This article was made freely available starting 18 February 2017
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