论文信息 - Sea ice thickness observation in the sea of okhotsk using ENVISAT/ASAR data

Sea ice thickness observation in the sea of okhotsk using ENVISAT/ASAR data

To investigate the possibilities of multi-polarization synthetic aperture radar (SAR) data to monitor sea-ice, we derived the relationship between polarization characteristics and the physical parameters of the sea-ice. We discuss the polarization characteristics of the backscattering coefficients of the sea-ice and then describe the sea-ice thickness by comparing the corresponding backscattering coefficient for each polarization with the physical parameters of the ice. We propose a retrieval algorithm for sea-ice thickness, which apply a backscattering ratio to estimate the thickness of the sea-ice. This ratio is calculated using a surface scattering model, which cancels the effect of roughness on backscattering. The method was validated using the Advanced SAR (ASAR) onboard ENVISAT satellite observation data obtained at ground-truth sites.

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