ABSTRACT

In this chapter, the C-band radar backscatter features of the ocean bottom topography of Subei Bank in the southern Yellow Sea and Taiwan Banks lying across the southern outlet of Taiwan Strait are statistically investigated by using a series of ENVISAT (Environmental Satellite) ASAR (advanced synthetic aperture radar) and ERS-1/2 (European Remote-Sensing Satellite-1/2) SAR images. Different hydrodynamic models are proposed for the longitudinal flow passing over parallel topographic corrugations of Subei Bank, and traverse flow passing over periodical topography of Taiwan Banks with strong stratification. These models and solutions are used to interpret satellite SAR images of different types of ocean bottom topography. The results reveal the SAR imaging mechanisms for underwater features and provide theoretical basis and quantitative relations for interpretation of the SAR images.