dataset · United Kingdom
GeoSure Extra: Shrink-Swell Subsurface v1
This addition to the GeoSure ground stability data consists of a single data layer in Geographical Information System (GIS) format that identifies areas of potential shrink-swell hazard at subcrop level (up to 10 metres depth) in Great Britain. It is essentially a national hazard susceptibility map. This data has been produced by geologists, geotechnical specialists and information developers at the British Geological Survey and is presented as a GIS data layer. Swelling clays can change volume
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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: 38.9
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
- shrink-swell hazard susceptibility (national GIS layer) · subcrop-level hazard to up to 10 m depth
- Coverage docs-verified
- Great Britain
- Update frequency docs-verified
- as needed (metadata: asNeeded)
- Formats docs-verified
- GIS data layer (specific file format not stated)
- Access docs-verified
- Listed on data.gov.uk; licence field 'Not set'; NERC/BGS copyright, so reproduction or transmission requires prior permission from the copyright holder
Useful for
- Use cases llm-inferred
- Phase 1 desk study screening for shrink-swell ground movement risk · Foundation and pipe/service risk screening for low-rise development on clay ground · Preliminary ground-stability context for site investigation scoping
- Audience llm-inferred
- geotechnical engineers · engineering geologists · civils engineers · planners · environmental consultants
Limitations
- Constraints llm-inferred
- National susceptibility map, not site-specific; ground investigation still needed · Hazard is assessed only to 10 m depth; spatial resolution and mapping scale are not stated · Copyright restricts reproduction and transmission without permission · Supplied with no warranty; use is at the customer's own risk · Updated as needed; reference creation date is 2017-10, so check currency
Evidence
- https://www.bgs.ac.uk/datasets/geosure/
- https://www.data.gov.uk/dataset/170c11f0-ced9-4bb1-87a7-c6d389dc6204/geosure-extra-shrink-swell-subsurface-v1
Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.