An aerial survey of the south west, taking place over the next few months, could help predict future flooding and landslides.
Planes will be flying as low as 80 metres over open countryside, and higher over built-up areas.
The project has begun at the western tip of Cornwall and will reach Exeter some time next month.
Devon man jailed for armed robbery
Dennis Ham senteced to four years
Lib Dem’s exert dominance in Mid Devon
Five of the six seats were taken by Liberal Democrats
The significant outcome from this election might not be what you expect
Comment: 'The changing of the guard politically is undeniably noteworthy'
East Devon gets two Reform councillors as Lib Dems sweep five
Several district councillors gain seats at county level
Conservatives' 16 year Devon leadership reign ends
They're now the third biggest party in the county
Labour loses all county council seats in Exeter
Reform and Greens sweep them aside
