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.
Voaden raises Slapton Line plight to PM
Sir Keir said communities had been “badly affected”
Exeter man charged with attempted murder of police officer
Guy Pottle remanded in custody
Legal moves begin to evict Exeter travellers
Calls for tougher deterrents
Don't fall for a deepfake this Valentine's
Romance scams on the rise
Teignmouth Air Show cancelled again
Is it grounded for good?
Leisure company gets £975,000 loan from council
It's yet to pay back £1.6 million
