TellusSW airborne geophysical data (OGC WxS INSPIRE)

The TellusSW project acquired airborne geophysical data for the counties of Cornwall and parts of Devon and Somerset during the second half of 2013. The maps of the geophysical data and their derivatives are provided to facilitate spatial comparison with, and modelling of, the soil, geological and environmental aspects of the data. The survey comprised a high resolution magnetic/magnetic gradient survey combined with a multichannel (256 channel) radiometric survey. The survey was carried out usi

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What's in it

Data offered docs-verified: airborne magnetic · magnetic gradient · multichannel (256 channel) radiometric · maps of geophysical data and derivatives
Coverage docs-verified: Cornwall and parts of Devon and Somerset (extent 49.6300° to 51.4100° N, -6.0300° to -3.3700° E) · second half of 2013
Resolution docs-verified: 200 m (N-S) line separation; mean survey elevation 91 m
Update frequency docs-verified: monthly (as stated in metadata; see limitations)
Formats docs-verified: WMS
Access docs-verified: No authentication listed in ENTRY. Copyright of derived materials vested in NERC; no reproduction or transmission without prior BGS permission. Use is at the customer's own risk.

Useful for

Use cases llm-inferred: Desk-study comparison of magnetic and radiometric anomalies against BGS geology and soils for Cornwall/Devon/Somerset sites · Radiometric context for radon or natural-ground screening in ground investigation reports · Regional geophysical baseline for contaminated land or mineral-related due diligence
Audience llm-inferred: geotechnical engineers · engineering geologists · contaminated land consultants · GIS analysts

Limitations

Constraints llm-inferred: Coverage limited to Cornwall and parts of Devon and Somerset; not England-wide · 200 m line spacing is coarse for site-scale work · Survey dates from 2013, so it may not reflect current ground conditions · Metadata lists monthly update frequency and a 2012-07-11 creation date, both inconsistent with a one-off 2013 survey; verify before citing · Copyright restricts reproduction without BGS permission · NERC/BGS gives no warranty on accuracy or suitability

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
Authentication: Unknown — review source docs
GitHub stars: Unknown
Last commit: Unknown
Last successful page check: 16/10/2026
Page health: page reachable
Package: Not recorded
Verification: Not independently verified

Provenance & evidence

Listed in data.gov.uk public catalogue API on 2026-10-16; relevance/value screened (haiku).

Metadata observed 14/10/2026 · research sweep: sweep-2026-10-16 (data.gov.uk)