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OS Terrain 5 contour tiles

OS Terrain 5 contour tiles - sample image

OS TerrainĀ® 5 is a digital terrain model (DTM) which represents the bare surface of the ground. The data is maintained as part of the same revision process as the Ordnance Survey's large scale data to ensure consistency. With detailed modelling of significant features such as road, rail, quarries and lakes, OS Terrain 5 provides a valuable third dimension to analytical applications.

OS Terrain 5 contours represents this DTM data as contour lines with a 5m vertical contour interval.

OS Terrain 5 has been measured against with GPS points in a range of sample areas to provide a root mean square error (RMSE) value of 1.5 metres in urban areas and major communication routes.

Product details

Product: OS Terrain 5 contour tiles
Author: Ordnance Survey
Scale: 1:5,000
Datum: OSGB36
Projection: Transverse Mercator
Spheroid: Airy
Licence:view pdf

Sample downloads