Edited digital elevation model available via streaming

October 31st, 2018, Published in Articles: PositionIT

Airbus Defence and Space’s entire edited WorldDEM database, together with the already available WorldDEM4Ortho dataset, are now available via streaming. WorldDEM is a homogeneous, single-source, high-precision digital elevation model (DEM). Online access to both datasets of the entire Earth’s landmass facilitates a wide range of applications such as line-of-sight-analysis, hydrological modelling, satellite imagery orthorectification and more. The data is now available for the entire world in an edited version. This dataset corresponds to a hydro-enforced digital surface model with water surfaces of lakes and reservoirs set to a single elevation, rivers and canals are flattened with monotonic flow, oceans are set to zero and coastal infrastructure features are removed. WorldDEM4Ortho, based on WorldDEM, is tailored for orthorectification of high and very high-resolution optical and radar satellite data. It enables corrections of all distortions induced by the topographical variations of the Earth’s surface and the satellite orientation when acquiring the image.

Corné Eloff, Airbus Defence and Space, Tel 011 266-2614, corne.eloff@airbus.com