dataset · United Kingdom
GeoSure Extra: Debris Flow Susceptibility Model for Great Britain (Version 6.0)
The Debris Flow Susceptibility Model for Great Britain version 6.0 (DFSM_GB_v6.0) provides information on the likelihood of debris flows occurring at a given location based on a combination of digital geological, hydrogeological and topographic data. It is a raster dataset at 50m resolution, showing susceptibility for debris flows on a scale A (lowest likelihood) to E (highest likelihood). The methodology develops an additional dimension to the BGS GeoSure Landslides surface layer (Dashwood et a
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Licence: ["The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in an
Evidence quality: 50.3
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
- debris flow susceptibility (scale A lowest to E highest)
- Coverage docs-verified
- Great Britain
- Resolution docs-verified
- 50 m raster
- Update frequency docs-verified
- Not planned (no scheduled updates; model completed March 2017)
- Formats docs-verified
- raster
- Access docs-verified
- No authentication listed. Open download from data.gov.uk, but BGS/NERC copyright access constraints apply: no reproduction without prior permission of the copyright holder.
Useful for
- Use cases llm-inferred
- Preliminary debris flow screening of development sites before ground investigation scoping · Desk-study geohazard input for planning and land-suitability assessment · Slope-related risk review for property due diligence and insurance loss assessment · Identifying high-susceptibility areas (bands D and E) for targeted site investigation
- Audience llm-inferred
- geotechnical engineers · engineering geologists · civils engineers · planners · GIS analysts · land surveyors
Limitations
- Constraints llm-inferred
- Designed specifically for debris flow susceptibility; not a general landslide or flood hazard dataset · Model completed March 2017 with no planned updates, so may not reflect recent ground or land-use changes · BGS/NERC copyright restricts reproduction and redistribution · Provided without warranty as to accuracy or suitability; use is at the customer's own risk · Susceptibility classes are relative likelihoods, not event probabilities or site-specific design values
Evidence
- https://www.bgs.ac.uk/datasets/bgs-geosure-debris-flow/
- https://www.data.gov.uk/dataset/917d03e5-c5d9-4f80-b6d5-790c589bbc64/geosure-extra-debris-flow-susceptibility-model-for-great-britain-version-6-0
Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.