Complete Great Britain national coverage of geological shrink-swell hazard potential is provided by the British Geological Survey. The assessment is based on BGS DiGMap data and expert knowledge of clay mineral behavior, modeling properties across the near surface. Data is available in ESRI Shapefile and MapInfo formats, with a last recorded update in April 2026.
Use Cases
- Assess construction site suitability based on modeled clay mineral shrink-swell behavior.
- Inform regional planning decisions based on the national hazard map coverage.
- Investigate causes of property subsidence based on geological deposit susceptibility.
- Model seasonal ground movement risk based on soil moisture and clay content factors.
Strengths
- Complete national coverage for Great Britain.
- Methodology is based on expert knowledge and the authoritative BGS DiGMap.
- Data is available in standard geospatial formats like ESRI Shapefiles.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data may reflect geographic bias inherent to uk_data, with focus on south-east Britain.
Provenance
- Source
- British Geological Survey (BGS)
- Collection Method
- Based on BGS DiGMap (Digital Map) and expert knowledge of geological formation behavior.
- Time Range
- null
- Freshness
- Last updated 2026-04 09 08:36:21.495200; freshness should be verified.
- Geography
- Great Britain