A large sample image of Land-Form PROFILE.
Land-Form PROFILE provides detailed height data surveyed at a scale of 1:10,000. The dataset is available as Contours and as a Digital Terrain Model (DTM).
Contours are at 5 metre vertical intervals (10 metres in some mountain and moorland areas). The dataset also includes air heights, spot heights, and high and low water marks. Digital contour accuracy values are typically better than ±2.5 metres for areas with 5 metre vertical intervals (±5 metres for areas with 10 metre vertical intervals).
The DTM data has been created from the contours and is a 10 metre grid of the height values. The DTM is available only as a download and can be used for terrain analysis of lines of sight and in applications such as visual impact studies, drainage analysis or site planning.
Further information on Land-Form Profile is available to registered users within the Digimap service.