Ocean applications of interferometric sar

Abstract

Out of various SAR interferometry techniques, ATI is the most attractive one for applications over coastal area, rivers, or the open ocean. ATI permits direct surface current measurements at spatial resolutions of 1 km and better from a satellite (a factor 10 improvement is possible for future instruments). Since the full-resolution images are noisy and include contributions of wave motions, some filtering and corrections for the wave motions need to be applied; techniques for these processing tasks are readily available. Promising applications are the ones that require high-resolution current measurements in areas where in-situ measurements or the use of other remote sensing techniques is not feasible.