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Summary of Proposal COA1075

TitleUse of high resolution TSX-data for large scale monitoring of waterlines and surface structures of intertidal areas in the Wadden Sea (TP4.1 of the interdisciplinary project "Monitoring Concepts of the German Bight" (WIMO)
Investigator Farke, Hubert - National Park Administration Lower Saxony Wadden Sea, Research
Team Member
Prof. Lehner, Susanne - German Aerospace Center, Remote Sensing Technology Institute (IMF)
Dipl. Biol Adolph, Winny - Federal State of Lower Saxony, National Park Administration
SummaryRemote sensing methods for classification and mapping of intertidal flats are in use for decades. Aerial photography and airborne scanning technologies are usually applied, because of the high resolution needed to determine the surface structures of the flats. With the new generation of satellites e.g. TSX, TDX or SPOT, a possibility is given, to generate high resolution images of the tidal flat region also from satellite data. The Wadden Sea area is of national and international importance and highly protected as National Park, EU Natura 2000 site, UNESCO World Heritage Site, Wetland of International Importance (RamsarSite) and under the Trilateral Governmental Cooperation for the Protection of the Wadden Sea. The high protection level contains an obligation to monitor and regularly assess and report the quality status of the Wadden Sea to national and international institutions like EU or UNESCO. The sediment types and habitats and their diversity, in which remote sensing technologies are mainly applied today, is a major criteria of the assessment. Aim of the project is the application of the new high resolution radar satellite technology especially of TSX and TDX to areal descriptions of surface morphology, sediments and habitats. The focus will be on the reproduction of the waterline at different tidal phases, depiction of the topography of the water covered sediment surface by the interpretation of current images, and the validation of special habitat structures to broaden our knowledge of interpreting SAR data in intertidal areas. Extended field observations corresponding to the dates when the satellites are passing will be carried out for the validation of the TSX and TDX images. A sediment and habitat map of the main research area, generated in the GMES project DeMarine Environment, with a station grid of 300m by 300m, will be basic to the interpretation work.

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