OS Terrain®

Summary

OS Terrain® is the name of the Ordnance Survey’s new range of height data products representing the physical landscape of Britain.

The data is available as a set of contours, along with spot heights and mean high and low water marks. It is also available as a gridded Digital Terrain Model (DTM) representing the bare ground surface.

OS Terrain® 5 Contours and DTM

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.

The height 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® 50 Contours and DTM

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.

Common Uses Data Samples Data Information
Line of sight planning, right to light and view-shed modelling
Landscape visualisation and fly-through sequences
Signal propagation analysis
Planning and development
Wind/solar farm location planning
Environmental and geological analysis
Flood/weather modelling and risk assessment
Quantity surveying and cut/fill analysis
Marketing and advertising

Data Formats

Export Formats
(OS Terrain® 5 Contours and OS Terrain® 50 Contours)
2D Contours (SHP)
2D Contours (TAB)
2D Contours (DWG)
3D Contours (DWG)
Export Formats
(OS Terrain® 5 DTM and OS Terrain® 50 DTM)
ASCII Grid (ASC)
3D TIN (DWG)
3D PDF (PDF)

Download Sample Data

All samples are for Terrain® 5.  Terrain® 50 shares the same format.

Common

Supplier
Ordnance Survey

Coverage
GB

Update schedule
Maintained within the Ordnance Survey’s integrated 3-5 year flying programme and synchronised with other product updates

Dataset Specific - OS Terrain® 5 Contours

Dataset
OS Terrain® 5 Contours

Horizontal Resolution
N/A

Vertical Accuracy
1.5m RMSE (urban areas and major communication routes), 2.5m RMSE (rural, mountain and moorland areas)

Vertical Intervals
5m contour interval

Typical Delivery Time
3 mins

Dataset Specific - OS Terrain® 5 DTM

Dataset
OS Terrain® 5 DTM

Horizontal Resolution
5m grid

Vertical Accuracy
1.5m RMSE (urban areas and major communication routes), 2.5m RMSE (rural, mountain and moorland areas)

Vertical Resolution
0.01m

Typical Delivery Time
3 mins

Dataset Specific - OS Terrain® 50 Contours

Dataset
OS Terrain® 50 Contours

Horizontal Resolution
N/A

Vertical Accuracy
4m RMSE

Vertical Intervals
10m contour interval

Typical Delivery Time
3 mins

Dataset Specific - OS Terrain® 50 DTM

Dataset
OS Terrain® 50 DTM

Horizontal Resolution
50m grid

Vertical Accuracy
4m RMSE

Vertical Resolution
0.1m

Typical Delivery Time
3 mins

Register

Register

Promap lets you instantly view, print, export and save Ordnance Survey Maps.

Register for a free account today, or call us on 0844 844 9962 for more information.

Register

PromapExport

  • Export OS current mapping data for use in your CAD or GIS software
  • Credit card payment
  • Multi-browser and OS, including Mac, iOS and Android

Visit Promap V2