Reach More Accurate Heights with WorldDEM™ dataset

• Vertical accuracy: 2m (relative) / 10m (absolute)
• 12m x 12m raster
• Global homogeneity
• Highly consistent dataset thanks to data collection within 2.5 years only
• High geometric precision of the sensors make ground control information redundant

Comparison of SRTM 90 (left) and WorldDEM™ (right) data illustrating the substantial improvement in accuracy and quality of the new dataset; Location: Minnesota, USA

Numerous Applications Benefiting from this New Product

The WorldDEM™ will support:

• High-quality image orthorectification
• Increased precision of height information within standard cartographic maps and map updates
• More targeted preparation of defence and security missions
• Enhanced international cooperation and cross-border mission planning
• Improved crisis intervention planning and emergency response support
• Management of oil and gas fields

Death Valley, USA: comparison of the bistatic WorldDEM™ with SRTM data

TerraSAR-X and TanDEM-X acquire data absolutely reliably, as they operate independent of cloud coverage and lighting conditions. The worldwide homogeneous acquisition guarantees a global DEM with no break lines at regional or national borders and no heterogeneities caused by differing measurement procedures or data collection campaigns staggered in time.

TanDEM-X

TerraSAR-X and TanDEM-X started the synchronous data acquisition in December 2010 and completed the first coverage of the Earth’s entire landmass within only 13 months. Following the first part of the acquisition campaign, the two satellites are continuing with the second coverage, which again requires approximately one year for completion. More complex terrain areas are covered with a third and fourth acquisition campaign to ensure the consistently high quality and accuracy of the final product.