Key information
Scale:
400 m flight line separationCoverage:
North Midlands of England into Welsh BorderlandAvailability:
FreeFormat:
ASCII text records and GeoTIFFsPrice:
Free for commercial, research and public use under the Open Government Licence. Please acknowledge the material
Uses:
Local-level to regional-level useGet data
Free access
Our free data is available under the Open Government Licence. Please acknowledge reproduced BGS materials.
View onlineWeb service (OGC WMS) – Geophysics theme.Supporting documents
The BGS and World Geoscience Corporation Ltd (WGC) collaborated on survey flying for the high-resolution geophysical and environmental survey, which was completed in 1998.
The data comprises multichannel gamma ray spectrometer, magnetometer and dual-frequency VLF-EM. Flight-line spacing was 400 m with tie lines at 1200 m. The total area surveyed was some 14 000 km2. Flight-line orientations were west to east over the western survey area and south-west to north-east over the eastern area. Ground clearance was maintained at 90 m in rural areas, increasing to about 240 m in built-up zones.
![hires Map](https://www.bgs.ac.uk/wp-content/uploads/2019/12/hiresMap.jpg)
Hi-RES1 airborne magnetic, radiometric, VLF survey coverage. BGS © UKRI – Contains OS data © Crown copyright 2020.
![hires Map](https://www.bgs.ac.uk/wp-content/uploads/2019/12/hiresMap.jpg)
Hi-Res1 airborne magnetic, radiometric, VLF survey coverage. BGS © UKRI – Contains OS data © Crown copyright 2020
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