OS Terrain

Available at a 5m or 50m resolution, Ordnance Survey Terrain data represent the physical landscape of Britain.

Overview

OS Terrain data has been created from a source that is also used to update other OS large-scale data products and is designed to be interoperable with other OS digital datasets such as MasterMap Topography Layer and VectorMap Local.

OS Terrain 5 is a mid-scale height dataset that includes detailed modelling of significant landscape and infrastructure features such as road, rail, quarries and lakes. OS Terrain® 5 is available as a set of contours with a 5m vertical interval, along with spot heights and mean high and low water marks. It is also available as a Digital Terrain Model (DTM) consisting of height values at each intersection of a 5m grid.

OS Terrain® 50 is a small-scale height dataset that is ideally suited to landscape visualisation and analysis over large areas. OS Terrain® 50 is available as a set of contours with a 10m vertical interval, along with spot heights and mean high and low water marks. It is also available as a Digital Terrain Model (DTM) consisting of height values at each intersection of a 50m grid.

Data Information

Dataset	OS Terrain 5 & OS Terrain 50
Supplier	Ordnance Survey
Accuracy	Terrain 5 - 5m Terrain 50 - 50m
Resolution	Terrain 5 - 1.5m RMSE to 2.5m RMSE Terrain 50 - 4m RMSE
Update Cycle	Maintained within the Ordnance Survey’s integrated 3-5 year flying programme and synchronised with other product updates
Coverage	GB
Typical Delivery Time	1-3 minutes

Available now

OS Terrain® is ready in a range suitable formats within minutes.

Go to Promap

Download samples

Download OS Terrain 5 ASCII Grid Download OS Terrain 5 3D DWG Download OS Terrain 5 3D TIN (DWG) Download OS Terrain 5 3D PDF Download OS Terrain 5 3D TAB Download OS Terrain 5 2D DWG Download OS Terrain 5 2D SHP

Export formats

ASCII Grid DWG 3D TIN (DWG) 3D PDF TAB DWG SHP

What people are using OS Terrain for

Terrain visualisation

Exactly what it says on the tin, use OS Terrain data to display the land around your project.

Flood modelling

Terrain plays a crucial part in flood modelling, we provide a range of resolutions to ensure you can choose the right data for your model.

Line of sight analysis

Display your design in context with the surrounding terrain, use OS Terrain data to get accurate line of sight projections.

Cut and fill analysis

Our high resolution digital terrain models will help you estimate volume of change as part of your analysis.

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