Shaping the Global High-Resolution TanDEM-X Digital Elevation Model

The global digital elevation model (DEM) produced by the TanDEM-X (TerraSAR-X add-on for measurements) mission is an interferometric with unprecedented quality, accuracy, and coverage. It represents unedited surface as artifacts inherent to synthetic aperture radar acquisition processing technique are still present. most prominent in DEM water bodies appearing a rough due low coherence. Additionally, outliers, voids, larger data gaps may be present this dataset. Therefore, editing crucial many applications including hydrology or orthorectification of remote sensing data. Depending on field application, different techniques quality enhancement required. This article provides comprehensive description semi-automatic framework specially developed generating edited version dataset shaping high-resolution 12 m focus areas, outlier handling, void filling. default configuration parameters workflow can thereby adapted interactively challenging areas where appropriate. A assessment resulting was done statistical measures, visual methods, well artifact evaluation.