TellusSW Airborne Geophysical Survey of Southwest England

2013 airborne geophysical data from the TellusSW project, providing 60,323 line-km of survey data. The British Geological Survey collected high-resolution magnetic and 256-channel radiometric measurements across Cornwall, Devon, and Somerset at a mean elevation of 91 meters.

Use Cases

• Model geological structures using high-resolution magnetic gradient survey data
• Analyze spatial patterns of natural radioactivity from the 256-channel radiometric survey
• Integrate airborne geophysical data with soil and environmental datasets for spatial comparison
• Map subsurface features using the 200 m line separation flight data

Strengths

• 60,323 line-km of survey data provides substantial spatial coverage
• High-resolution magnetic survey combined with a multichannel (256 channel) radiometric survey
• Data collected with consistent 200 m line separations at a mean elevation of 91 m

Limitations

• Data is from a single campaign in 2013, lacking temporal depth
• Coverage is limited to specific counties in Southwest England
• Primary format is WMS (Web Map Service), which may limit direct numerical analysis

Provenance

Source

British Geological Survey (BGS)

Collection Method

Airborne survey using 200 m (N-S) line separations

Time Range

Second half of 2013

Freshness

Last metadata update was 2026-03 26, though underlying data is from 2013.

Geography

Counties of Cornwall and parts of Devon and Somerset, United Kingdom