OSNI Open Data: River Basin LIDAR 2014 - 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.

Dati un resursi

Blackwater_16_06_2014ZIP
Blackwater DTM and DSM Data in ASCII format
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Camowen_16_06_2014ZIP
Camowen DTM and DSM Data in ASCII format
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Cloghmills_16_06_2014ZIP
Cloghmills DTM and DSM Data in ASCII format
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LowerBann_16_06_2014ZIP
Lower Bann DTM and DSM Data in ASCII format
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Stonyford_16_06_2014ZIP
Stonyford DTM and DSM Data in ASCII format
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River Basin Lidar - Note on the DatasetPDF
Some background information on the underlying lidar data including its...
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River Basin Lidar Coverage MapPDF
Map showing location and extent of captured river basin lidar in Northern...
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River Basin Lidar Coverage and 1km reference ...PDF
Map showing location and extent of captured river basin lidar in Northern...
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Papildus informācija

Lauks	Vērtība
Creation Date	Aprīlis 14, 2016, 13:55 (UTC)
Topic Category	Elevation
Lineage	The data was acquired over a ten year period to aid studies on flooding. Approximately 14% of Northern Ireland is covered. See attached guidance information for more detailed lineage information
Frequency of Update	Irregular
Contact Name	Not Supported Dataset - LPS
Contact Email	osniopendata@dfpni.gov.uk
Papildus informācija
Redzamība	False
Source last updated
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