The NEXTMap topographic data was collected using Intermaps Star-3i IFSAR (Interferometric Synthetic Aperture Radar) producing a Digital Surface Model (DSM), a Digital Terrain Model (DTM) and orthorectified radar imagery (ORI) for the whole of the England, Scotland and Wales. All data has been processed to the OSGB National Grid and Newlyn Datum.
Intermap and Geosense have produced a wide variety of products which are ready to buy off-the-shelf from Geosense in a wide variety of GISand CAD ready formats.
Contact Geosense for prices on all NEXTMap Britain and Other NEXTMap datasets from around the world including USA and Indonesia.
CONTOURS
Geosense has generated cartographic contours at 5m and 2m intervals from the NEXTMap Britain DTM5 for the whole of the UK. These highly accurate contours are supplied with spotheights at regular intervals, and are a more detailed alternative to existing national datasets. The NEXTMap Contours are aimed at those users who prefer to use contours instead of a regular gridded DTM, or for those working in 2D who require contours to represent slope and aspect on drawings and maps. Formats available from Geosense include DXF, NTF, DGN and DWG.

