dataset · United Kingdom
Permeability Dataset for Great Britain (Bedrock)
The data comprises a GIS layer representing the permeability of bedrock for Great Britain The permeability data has been derived from DiGMap-GB (Digital Geological Map Data of Great Britain), and therefore reflects the scale of DiGMap-GB. For the majority of the Great Britain, the scale is 1:50,000, however in areas where the geology is not mapped to this scale, 1:250,000 data are. The data is updated annually, or after a major new release of DiGMap-GB. The permeability data describes the fresh
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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: 46.4
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
- bedrock permeability (GIS layer) · maximum and minimum permeability indices per lithostratigraphical unit · predominant flow mechanism (fracture or intergranular)
- Coverage docs-verified
- Great Britain
- Resolution docs-verified
- Source map scale: 1:50,000 for most of Great Britain; 1:250,000 where geology is not mapped at 1:50,000 (derived from DiGMap-GB scale)
- Update frequency docs-verified
- Annually, or after a major new release of DiGMap-GB
- Formats docs-verified
- ESRI shapefile · MapInfo TAB
- Access docs-verified
- Free for internal use; commercial use is licensed (terms not stated in DOCS). Copyright vested in NERC; reproduction or transmission requires prior permission from the BGS IPR Manager
Useful for
- Use cases llm-inferred
- Bedrock permeability screening for SuDS infiltration feasibility and drainage strategy · Hydrogeological context for flood risk assessment (groundwater flooding and baseflow screening) · Desk-study geology layer for contaminated land and geotechnical site investigation scoping
- Audience llm-inferred
- hydrogeologists · drainage engineers · flood consultants · geotechnical engineers · GIS analysts
Limitations
- Constraints llm-inferred
- Permeability indices ignore the thickness of the unsaturated and saturated parts of each unit · Mapping scale varies: 1:250,000 applies where geology is not mapped at 1:50,000 · Best viewed in a desktop GIS; vector data only, no raster product listed · Harvested extent metadata (51.64 to 53.49 N, -2.00 to 1.84 E) is narrower than the stated Great Britain coverage; check the data before relying on full GB coverage · Commercial use requires a licence and reproduction requires NERC/BGS permission; no licence terms or price are stated in DOCS · BGS gives no warranty on accuracy or suitability for any use, and use is at the customer's own risk
Evidence
- https://www.bgs.ac.uk/datasets/permeability/
- https://www.data.gov.uk/dataset/f741b4b8-4da7-432d-93c7-9ecc6a40d0fb/permeability-dataset-for-great-britain-bedrock
Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.