Ordnance Survey release New Height Product – OS Terrain 5 & Update to OS Terrain 50

Sourced from the Ordnance Survey Blog –  , 8, July, 2013 9:55 am
 OS Terrain 5 is our new fully maintained analytical height product modelling the shape of Great Britain’s landscape. OS Terrain 5 is a digital terrain model designed to work together with our large-scale products to provide the third dimension to analytical applications, such as flood risk assessment, development and wind farm location. You can see OS Terrain 5 below.

We’ve ensured additional modelling for features that are often used for analytical applications – such as such as major communication routes, lakes, quarries and urban areas. See the example below with the motorway network and Killington Reservoir.

OS Terrain 5 will be updated quarterly to ensure that latest data is available for customers. Featuring over 2.3 million contour lines and more than 280,000 spot heights, OS Terrain 5 provides highly-accurate, intelligent data.

Our first commercial product to be made exclusively available for download, OS Terrain offers 5 metre grid and 5 metre contour options within the one product.  We’ve also embraced open source standards and made the product available in a variety of formats, such as ASCII grid, Esri shapefile and GML 3.2 with detailed xml metadata for each tile of data.

The level of consistency and currency and ability to integrate with our large scale products makes OS Terrain 5 a welcome addition for terrain analysis and 3D visualisation by a wide range of customers.

Below: OS Terrain 5 overlaid with OS VectorMap Local, OS MasterMap Networks Water Layer and OS MasterMap Networks Rail Layer

Update to OS Terrain 50 now available

OS Terrain is the new family name for our height products and we launched OS Terrain 50 in April this year as part of our OS OpenData product portfolio. The national scale 50 m grid format has already proved popular for download and we’ve now updated the grid and released the 10 m contours for the product. You can view and download OS Terrain 50 in grid and contour format via our website now.

OS Terrain 50

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