A comparison of 30-m SRTM and 12-m WorldDEM elevation data over Arkansas, USA.Effectively immediately we are happy to announce significant (and permanent) reductions of up to 50% off 2018 pricing on Airbus’ 12-meter (m) global digital elevation model (DEM), WorldDEM. With minimum order sizes remaining the same, this is a deep-discount that any user of elevation data should be excited about! Send us an email at sales@apollomapping.com for a revised price list that includes the recent 12-m WorldDEM pricing changes.
12-m WorldDEM Specifications
The key product specifications of Airbus’ WorldDEM are as follows:
- Resolution: 12-m
- Coverage: entire landmass of the Earth, ~150 million square kilometers (sq km)
- Absolute Vertical Accuracy: < 4-m Linear Error 90% (LE90)
- Relative Vertical Accuracy: < 2-m LE90 (slopes ≤ 20%), < 4-m LE90 (slopes > 20%)
- Absolute Horizontal Accuracy: < 10-m Circular Error 90% (CE90)
- Vintage: 2013 to 2016
- Source: interferometry from synthetic aperture radar (SAR) satellites TerraSAR-X & TanDEM-X
- Minimum Order: 100 sq km per polygon
- File Format: GeoTIFF
- Projection: geographic WGS84 (EGM2008, vertical datum), meter vertical unit
- Product Line Options:
- WorldDEMcore – unedited digital surface model (DSM), includes spikes, wells and voids
- WorldDEM – a DSM with removal of artifacts and water body flattening
- WorldDEM DTM – artifacts and surface features removed, i.e. a digital terrain model (DTM)
12-m WorldDEM Samples
You can download four 12-m WorldDEM samples here:
For more information about 12-m WorldDEM data, including pricing and availability, please send us an email at sales@apollomapping.com or check out our website here.
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Please let me know about the cost of 12m DEM for Bhutan (Aprox. 39,000 sq.km) and if you have any discount for educational institution.