NEXTMap Britain

NEXTMap Britain
DSM - Digital Surface Model	DTM - Digital Terrain Model	ORI- Orthorectified Radar Imagery

Height model of surface detected - gives height of buildings, forests, hedges etc 5m Post (essentially 1 point every 5m resolution) 0.5 RSME Processing to flatten and smooth lakes, airports, roads etc. Also prevented saddles in drainage systems Ideal for 3D Models, Draping Aerial Photography, Orthorectification etc	Height model of bare earth surface - so does not show hedges, trees, buildings etc 5m or 10m Post (essentially 5m or 10m resolution) 0.7 RSME Processing to flatten and smooth lakes, airports, roads etc. Also prevented saddles in drainage systems Ideal for flood modelling, Contour mapping etc	Appears like black and white aerial photography at a glance 1.25m resolution Does not vary in colour of surfaces - just roughness and moisture content. Forests are quite rough so may appear brighter than a road which is relatively smooth Excellent for viewing linear features (roads, rivers, hedges etc) No clouds as these are transparent for radar
5m Resolution	5/10m Resolution	1.25m Resolution