Skip to content
← Directory

dataset · England

Government / regulator

LiDAR based Digital Terrain Model (DTM) data for South West England

This is a high resolution spatial dataset of Digital Terrain Model (DTM) data in South West England. The DTM along with a Digital Surface Model (DSM) cover an area of 9424 km2 that includes all the land west of Exmouth (i.e. west of circa 3 degrees 21 minutes West). The DTM represents the topographic model (height) of the bare earth. The dataset is a part of outcomes from the Centre for Ecology & Hydrology South West (SW) Project. There is also a Digital Surface Model (DSM) dataset covering the

Visit source ↗

Feature or claim this listing

Feature this listing — founding Featured slots are 50% off for 6 months

Represent LiDAR based Digital Terrain Model (DTM) data for South West England? Send a claim for review so we can discuss listing updates. Claims do not automatically grant ownership or verification.

Explore paid sponsorship →

What's in it

Data offered docs-verified
Digital Terrain Model (DTM), bare-earth height · Digital Surface Model (DSM), companion dataset covering the same area
Coverage docs-verified
South West England: all land west of Exmouth (west of circa 3 degrees 21 minutes West), 9424 km2 · 2013-07-01 to 2013-08-31 (temporal extent of the LiDAR acquisition)
Resolution docs-verified
1 m grid cell; average height accuracy 25 cm vertical
Formats docs-verified
ESRI grid · WMS (web map service)
Access docs-verified
Open Government Licence (OGL). Free direct file download and WMS. Scripted bulk download via eidchub uses a personal access token (Bearer token).

Useful for

Use cases llm-inferred
Flow-path and catchment delineation for drainage strategy using 1 m bare-earth DTM · Terrain input for flood risk or hydraulic model setup across SW England · Existing ground levels for earthworks cut/fill estimates in Cornwall and Devon
Audience llm-inferred
hydrologists · flood consultants · drainage engineers · civils engineers · GIS analysts

Limitations

Constraints llm-inferred
Acquired July-August 2013, so may be superseded by newer LiDAR · Coverage limited to South West England west of Exmouth · Average vertical accuracy 25 cm · Scripted bulk download requires a personal access token · DSM is a separate dataset and must be sourced alongside the DTM · No update frequency stated
Licence
Open government licence
Authentication
Unknown — review source docs
GitHub stars
Unknown
Last commit
Unknown
Last successful page check
16/10/2026
Page health
healthy
Package
Not recorded
Verification
Not independently verified

Provenance & evidence

Listed in ukceh-eidc public catalogue API on 2026-10-16; relevance/value screened (haiku).

Metadata observed 14/10/2026 · research sweep: sweep-2026-10-16 (ukceh-eidc)