5 metre resolution digital elevation model of Great Britain, available as a height model of the bare Earth surface (digital terrain model, DTM) and a height model of natural terrain features (digital surface model). The horizontal accuracy is +/- 2.5m on slopes less than 20 degrees. The vertical accuracy is +/-1.0 m or greater.
Data are arranged into Ordnance Survey / British National Grid tiles of 10 x 10 km.
Publication date: 2007-12-10
The data was generated from airborne interferometric synthetic aperture radar (INSAR).