Abstract
Sea surface current plays an important role in understanding physical oceanography and can provide critical information for preventing natural disasters such as oil spill and ship distress. In this study, two techniques using space-borne Synthetic Aperture Radar (SAR) systems were processed to evaluate their feasibility to extract sea surface current velocities. The first technique employs the Doppler shift algorithm from a single SAR system which is generated when moving targets are imaged in East Sea of Korean Peninsula. The second technique utilizes Along-Track Interferometry (ATI) from dual SAR system to estimate sea surface current velocity in Strait of Korea. Envisat ASAR and TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurement) data were used in each technique, respectively.
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