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HxGN Elevation Data
Description
Hexagon’s HxGN Content Program offers nationwide digital surface models up to 40 cm resolution or higher across the US and Europe. Derived from quality-controlled, high-accuracy aerial imagery, the HxGN Content Program’s DSM provides a clear view of the surface and its above-ground features in a 3D format.
Technical information
| Resolution | 1x GSD (full resolution DSM 2x GSD (de-noised DSM) 4x GSD (intermediate DSM) 5m (auto-filtered DEM) |
| Accuracy Z | 2x GSD |
| Accuracy XY (wide area coverage) | RMSEx/y = 1.2m RMSEr = 1.7m CE90 = 2.6m CE95 = 3.0m |
| Accuracy XY (urban area coverage) | RMSEx/y = 0.5m RMSEr = 0.71m CE90 = 1.07m CE95 = 1.22m |
| Format | Compressed LAZ segmented per flight layout (ASPRS LAS 1.2 specification) |
| Coordinate Reference System (CRS) and Vertical Datum | North America: Horizontal - UTM NAD83 (2011) epoch 2010 meters / Vertical - NAVD88 (Geoid12b) meters Europe: Horizontal - UTM IRTF2008 epoch 2005 (wgs84-g1674) / Vertical - EGM08 meters |
Terms & conditions
View the End User License Agreement conditions.