The British Geological Survey (BGS) has recently acquired for NERC the NEXTMap Britain dataset, produced by Intermap. This digital terrain model was derived from airborne Interferometric Synthetic Aperture Radar (IFSAR), enabling large areas of the country to be covered rapidly and at very high spatial resolution. It was originally commissioned by Norwich Union Insurance to aid in the estimation of flood risk, but obviously has tremendous potential as a scientific research tool. The dataset covers all of England, Wales and Scotland.
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