LPS Northern Ireland Digital Terrain Model
Features and benefits
Available in 10m grid intervals.
Can be used in the electronic process of representing topography in 3 dimensions, including slope and aspect maps.
Using Geographical Information System (GIS) sofware, orthophotographs and maps can be draped over a Triangular Irregular Network (TIN) derived from a DTM to create a 3D view of the land surface.
DTM data can also be used in a GIS to create thematic maps, grids and contours.
- The DTM is derived from OSNI’s Orthophotography dataset.
- All height measurements refer to elevation in metres above mean sea level at Belfast Lough.
- DTMs can be used to generate 3D TINs.
- 95% of the data is within +/-1.0m accuracy.
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|Mapping type||Height Data|
|Used in||Site development and flood / drainage analysis|
|Can be put into||CAD / GIS|
|Available as||DXF, DWG|