Global Shoreline Mapping from an Airborne Polarimetric SAR: Assessment for RADARSAT 2 Polarimetric Modes

TL;DRAbstract

A project between two agencies, DREO and NIMA was initiated in 1998 to study shoreline extraction from imagery. DREO researched SAR applications with an emphasis on Radarsat products. The focus of this report is the extraction of shorelines from polarimetric SAR imagery in preparation for the launch of Radarsat 2. The desired vector shoreline product for this project is the Mean High Water Line (MHWL). This specification implies that consideration of tidal models are required. For this project in addition to radar considerations, geomatics, topographic and oceanographic issues were considered part of the investigation. Polarimetric classification methods were used to detect the shoreline region. Contrast enhancement methods were implemented to emphasize the shoreline edge. The cross-polarized channels provided velocity information which was used for discriminating between non-stationary (i.e.; ocean) and stationary surfaces (i.e.; land). One method for extracting shore slopes was studi

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