Complete Great Britain national coverage of ground subsidence potential, generalized to a hexagonal grid with 64.95km² cells. The British Geological Survey produced this dataset by analyzing geological deposits like peat and alluvium, rating each area's susceptibility to compression as Low, Moderate, or Significant. This version 7 dataset was last updated on 2026-04-09.
Use Cases
- Regional risk screening for construction projects based on the generalized hazard ratings.
- Informing planning decisions to mitigate subsidence based on the supporting GeoSure reports.
- Modeling potential ground movement from changes in groundwater levels based on the described geological behavior.
- Identifying areas with localized significant hazard ratings for detailed site investigation.
Strengths
- Complete national coverage for Great Britain.
- Provides a user-friendly, generalized view of a complex geological hazard.
- Methodology is based on the BGS Digital Map (DiGMapGB-50) and expert knowledge.
- Ratings are clearly defined as Low (1), Moderate (2), or Significant (3).
Limitations
- Generalization to a 5km hex grid may lead to under or overestimation of hazard extent.
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count and file formats are unknown, which may limit suitability assessment.
Provenance
- Source
- British Geological Survey (BGS)
- Collection Method
- Based on the BGS Digital Map (DiGMapGB-50) and expert knowledge of geological formation behavior, summarized via spatial statistics to a hexagonal grid.
- Time Range
- null
- Freshness
- Last updated 2026-04-09 08:35:04.645971; freshness should be verified.
- Geography
- Great Britain