OSNI Open Data: River Basin LIDAR 2009 - DTMs and DSMs

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.

Data and Resources

Ballyclare_23_04_2009ZIP

Ballyclare DTM and DSM Data in ASCII format
Ballymena_23_04_2009ZIP

Ballymena DTM and DSM Data in ASCII format
Clady_10_03_2009ZIP

Clady DTM and DSM Data in ASCII format
Downpatrick_05_05_2009ZIP

Downpatrick DTM and DSM Data in ASCII format
Londonderry_30_04_2009ZIP

Londonderry DTM and DSM Data in ASCII format
Maghera_20_04_2009ZIP

Maghera DTM and DSM Data in ASCII format
Portadown_27_04_2009ZIP

Portadown DTM and DSM Data in ASCII format
River Basin Lidar - Note on the DatasetPDF

Some background information on the underlying lidar data including its...
River Basin Lidar Coverage MapPDF

Map showing location and extent of captured river basin lidar in Northern...
River Basin Lidar Coverage and 1km reference grid mapPDF

Map showing location and extent of captured river basin lidar in Northern...

Additional Info

Field	Value
Last Updated	July 17, 2024, 18:08 (UTC)
Created	July 17, 2024, 18:08 (UTC)