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We analyzed a great deal of high-resolution Synthetic Aperture Radar (SAR) data of dry-fallen intertidal flats in the German WaddenSea with respect to the imaging of sediments, macrophytes, and mussels. TerraSAR-X and Radarsat-2 images of five test areas alongthe German North Sea coast acquired between 2008 and 2013 form the basis for the present investigation and are used todemonstrate that pairs of SAR images, if combined through basic algebraic operations, can already provide useful indicators formorphological changes and for bivalve (oyster and mussel) beds. Depending on the type of sediment, but also on the water level andon environmental conditions (wind speed) exposed sediments may show up on SAR imagery as areas of enhanced, or reduced, radarbackscattering. The (multi-temporal) analysis of series of such images allows for the detection of mussel beds, and our results showevidence that also single-acquisition, multi-polarization SAR imagery can be used for that purpose

the international archives of the photogrammetry, remote sensing and spatial information sciences/international archives of the photogrammetry, remote sensing and spatial information sciences

ANALYSES OF MULTI-YEAR SYNTHETIC APERTURE RADAR IMAGERY OF DRY-FALLEN INTERTIDAL FLATS