Title :
Generation of high precision DEMs of the Wadden Sea with airborne interferometric SAR
Author :
Wimmer, C. ; Siegmund, R. ; Schwabisch, M. ; Moreira, J.
Author_Institution :
Sero-Sensing Radarsyst. GmbH, Oberpfaffenhofen, Germany
Abstract :
This paper describes how high-precision digital elevation models (DEMs) are obtained over the Wadden Sea using the AeS-1 airborne interferometric radar. The Wadden Sea is an intertidal zone along the coast having height variations less than 5 m over 30 km and is free of vegetation. The resulting DEM has a grid spacing of 2.5 m and an absolute height accuracy of 5 cm root mean square (rms), as verified by theodolite measurements. This paper describes the radar system, the processing techniques, the test area, the results, and the verification procedure.
Keywords :
airborne radar; bathymetry; geodesy; geophysical techniques; oceanographic regions; remote sensing by radar; seafloor phenomena; synthetic aperture radar; terrain mapping; topography (Earth); AeS-1; Bremerhaven; DEM; German Bight; Germany; InSAR; North Sea; Wadden Sea; airborne interferometric radar; airborne radar; coast; digital elevation model; geophysical measurement technique; interferometric SAR; intertidal zone; land surface topography; ocean; radar remote sensing; seafloor; synthetic aperture radar; terrain mapping; verification; Airborne radar; Cities and towns; Digital elevation models; Global Positioning System; Interferometry; Root mean square; Surfaces; Synthetic aperture radar; System testing; Vegetation mapping;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
