Scientists at the German Aerospace Center (DLR) recently developed a satellite-based map of human settlements, with a precision currently unparalleled by other global surveys. The maps are based on data of the German radar satellites TerraSAR-X and TanDEM-X captured from an altitude of 500 kilometres.
The Sentinel-1 satellite of the European Space Agency delivered its first images. As UN-SPIDER reported, the satellite was launched successfully on 3 April. The mission is the first of ESA’s Copernicus environmental monitoring programme.