OSNI Open Data: River Basin LIDAR 2008 - DTMs and DSMs

Published by:
OpenDataNI
Last updated:
14 April 2016
Topic:
Mapping
Licence:
Open Government Licence

Summary

Terrain (DTM) & Surface (DSM) elevation models of river basins derived from airborne LIDAR survey systems. A Digital Terrain Model (DTM) is a digital file consisting of a grid of regularly spaced points of known height which, when used with other digital data such as maps or orthophotographs, can provide a 3D image of the land surface. This data is typically provided in tiles of 1km x 1km, each containing elevations in a 1m x 1m grid. Tiles are grouped and can be downloaded by area as shown on the index ‘River Basin LIDAR-Coverage Map’. Data acquired in 2009 & 2010 also contains Point Cloud files, a closely spaced (0.2m) irregular grid of elevations from which the 1m x1m grids were derived. By download or use of this dataset you agree to abide by the Open Government Data Licence.

This data is not a supported LPS product, supporting documentation has been provided to assist / offer guidance on the data itself.

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Data links

Link to the data Format File added Data preview
River Basin Lidar Coverage and 1km reference grid map PDF 14 April 2016 Not available
River Basin Lidar Coverage Map PDF 14 April 2016 Not available
River Basin Lidar - Note on the Dataset PDF 14 April 2016 Not available
Newtownards_10_06_2008 ZIP 14 April 2016 Not available

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Open Data Team