LIDAR Composite Digital Terrain Model (DTM) 10m

Published by:
Environment Agency
Last updated:
14 June 2024
Topic:
Not added
Licence:
Other Licence
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Summary

The LIDAR Composite DTM (Digital Terrain Model) is a raster elevation model covering ~99% of England at 10m spatial resolution. The DTM (Digital Terrain Model) is produced from the last or only laser pulse returned to the sensor. We remove surface objects from the Digital Surface Model (DSM), using bespoke algorithms and manual editing of the data, to produce a terrain model of just the surface.

The digital terrain model has been resampled to 10 metres from the LIDAR Composite DTM 2m dataset using a bilinear interpolation technique.

Produced by the Environment Agency in 2022, the DTM is derived from a combination of our Time Stamped archive and National LIDAR Programme surveys, which have been merged and re-sampled to give the best possible coverage. Where repeat surveys have been undertaken the newest, best resolution data is used. Where data was resampled a bilinear interpolation was used before being merged.

The 2022 LIDAR Composite contains surveys undertaken between 6th June 2000 and 2nd April 2022. Please refer to the metadata index catalgoues which show for any location which survey was used in the production of the LIDAR composite.

The data is available to download as a single GeoTiff raster aligned to the OS National grid. The data is presented in metres, referenced to Ordinance Survey Newlyn and using the OSTN’15 transformation method. All individual LIDAR surveys going into the production of the composite had a vertical accuracy of +/-15cm RMSE. Attribution statement: © Environment Agency copyright and/or database right 2022. All rights reserved.

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Data links

Link to the data Format File added Data preview
LIDAR_Composite_10m_DTM_2022.zip ZIP 14 June 2024 Not available

Additional information

View additional metadata
Added to data.gov.uk
2024-06-12
Access contraints
There are no public access constraints to this data. Use of this data is subject to the licence identified.
Harvest GUID
ce8fe7e7-bed0-4889-8825-19b042e128d2
Extent
Latitude: 55.816° to 49.943°
Longitude: -6.236° to 2.072°
Spatial reference system
http://www.opengis.net/def/crs/EPSG/0/27700
Dataset reference date
2023-03-08 (creation)
2023-03-08 (revision)
Frequency of update
annually
Responsible party
Environment Agency (pointOfContact)
ISO 19139 resource type
dataset
Metadata language
eng
Source Metadata
XML
HTML

Contact

Enquiries

Access DSP Support pages: https://environment.data.gov.uk/support

Freedom of Information (FOI) requests

National Customer Contact Centre Freedom of information requests for this dataset

Licence information

Open Government Licence