dataset · England
LIDAR DTM Time Stamped Tiles
The LIDAR DTM (Digital Terrain Model) Time Stamped Tiles product is an archive of raster elevation data produced by the Environment Agency. Site specific LIDAR surveys have been carried out across England since 1998, with certain areas, such as the coastal zone, being surveyed multiple times. Data is available at varying resolutions of 25cm, 50cm, 1m and 2m, depending on project requirements. The DTM (Digital Terrain Model) is produced from the last return LIDAR signal. We remove surface objects
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Licence: ["There are no public access constraints to this data. Use of this data is subject to the licence identified.", "There are no public access constraints to this data. Use of this data is subject to the
Evidence quality: 67.8
Listed in data.gov.uk public catalogue API on 2026-10-16; relevance/value screened (haiku).
Metadata checked: 2026-10-14T13:20:00.000Z
What's in it
- Data offered docs-verified
- LIDAR DTM (bare-earth terrain model, surface objects removed) · time-stamped multi-survey LIDAR tiles · survey metadata index (survey dates, resolution, transformation and geoid model per location)
- Coverage docs-verified
- England · 1998 onwards (survey dates vary by location)
- Resolution docs-verified
- 25cm, 50cm, 1m and 2m, depending on project requirements; vertical accuracy +/-15cm RMSE
- Update frequency docs-verified
- quarterly
- Formats docs-verified
- GeoTIFF
- Access docs-verified
- Free/open download; no public access constraints, subject to the Open Government Licence v3.0
Useful for
- Use cases llm-inferred
- Flood risk assessment ground-level and floodplain topography for hydraulic model inputs · Drainage strategy overland flow-path and catchment analysis from bare-earth terrain · Civils earthworks cut/fill volume baselines from DTM surfaces · Site topographic baseline from the nearest survey tile and date
- Audience llm-inferred
- flood consultants · drainage engineers · hydrologists · civils engineers · GIS analysts
Limitations
- Constraints llm-inferred
- Surveys are project-specific, so coverage and survey date vary by location rather than forming a single seamless national dataset · Some areas were surveyed several times, so the survey date must be chosen via the metadata index · Heights are referenced to OS Newlyn and the transformation depends on survey period; a consistent geoid adjustment may be needed across tiles · Download is as 5km GeoTIFF zip files; no API is described in the docs
Evidence
- https://environment.data.gov.uk/api/file/download?fileDataSetId=a3754840-badc-4e6f-be55-4c584fd57626&fileName=OSGM02_to_OSGM15_Adjustment_Grid.zip
- https://www.data.gov.uk/dataset/8275e71e-1516-42a1-bb0c-4fa73807fe2b/lidar-dtm-time-stamped-tiles
Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.