OS Terrain 5
OS Terrain 5 is ideal for 3D visualisations. It models significant landscape features including roads, railways, slopes, quarries and lakes, and offers a typical accuracy level greater than 2m RMSE (Root Mean Square Error).
OS Terrain 5 adds the third dimension to OS MasterMap Topography Layer. You won’t find another height product for Great Britain with this level of consistency, currency and detail.
OS Terrain 5 is updated quarterly, with releases in January, April, July and October.