Modeling Normalized Radar Cross-Section of Oil-contaminated Sea Ice with Small Perturbation Method

In this paper, we present a study of scattering from oil-contaminated sea ice. We utilized five dielectric mixture models to model clean and oil-contaminated sea ice with two types of oil products (crude oil and marine ship diesel) with 5% contamination by volume fraction. For the scattering approach, we utilized the Small Perturbation Method, SPM, and simulated the Normalized Radar Cross Section, NRCS, of clean and oil-contaminated sea ice at 5.5 GHz. Simulation results demonstrate that theoretically, although the difference is very small, the SPM method can be utilized for differentiating clean and contaminated sea ice and VV (Vertical-Vertical) polarization gives higher discrepancy than HH (Horizontal-Horizontal) polarization between clean and oil-contaminated sea ice.