SAR Product Improvements and Enhancements -- SARprises
2011
Romeiser, Roland
The long-term goal of this project is to utilize the recently established ordering, receiving, and processing capabilities for TerraSAR-X along-track interferometric synthetic aperture radar (along-track InSAR or ATI) data at the University of Miami's Center for Southeastern Tropical Advanced Remote Sensing (CSTARS) for the development of advanced ATI data products, such as surface current fields in narrow rivers, and innovative higher order data products characterizing the bathymetry in coastal areas, properties of oceanic internal waves, and the ocean surface wave spectrum, as derived from amplitude signatures, interferometric phase signatures, and polarimetric signatures. Within the project period of 36 months (which started in spring 2011), we intend to acquire and analyze a comprehensive set of ATI images of rivers, coastal areas, and open-ocean features such as internal waves and tropical storms; explore possibilities of obtaining surface current estimates for challenging test sites, such as very narrow rivers (width 100 m), where most of the backscattered power from a fast-moving water surface may be mapped into pixels on land; test techniques for two-dimensional vector current field retrievals from combined TerraSAR-X /TanDEM-X along-track InSAR data or combined single-instrument along-track InSAR data from ascending and descending overpasses of a test site; develop tools for the generation of higher-level data products from along-track InSAR-derived surface current fields, such as bathymetric maps of coastal waters and volume flow/mean runoff estimates for rivers of uncertain depth; and evaluate the potential of innovative InSAR- and polarimetry-based techniques for fully two-dimensional surface wave retrievals.
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