Abstract

AbstractUsing the image data from active RADARSAT SAR and passive DMSP SSM/I measurements of the ice in the Bohai Sea on January 23, 1999, this paper presents a correlated analysis for sea ice detection and classification. Numerical modeling of scattering and radiative transfer of a layer of sea ice for characteristic variations of the Bohai Sea shoreice is studied. The scattering index (SI), polarization index (PI), and the polarization ratio (PR) from passive observation of the brightness temperature (TB) are defined to detect the existence of sea ice. Further, using the co‐horizontally polarized back‐scattering coefficient (σhh) measured by the RADARSAT high resolution SAR, the sea ice in the Bohai Sea can be further classified. Temporal and spatial variations of these indices can be used to monitor the sea ice in the Bohai Sea.

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