ITV News correspondent Rupert Evelyn reports
Britain's coastline has changed shape after weeks of bad weather battered the island, with rocks having fallen on the Dorset coast.
Read: Residents describe the devastating impact of the floods
A team of geologists and engineers have to survey the new shape of the coastline and the quickest way to do that is by helicopter.
Read: The dangerous job of restoring power to storm-hit homes
One of the RAF helicopter pilots said it was unusual to be working in a crisis this close to home.
Watch: Aerial images show UK's altered landscape after floods
Flood water remains across large swathes of the South West and shows no sign of retreating.
Read: Boatyard owner's dilemma of helping neighbours or firm
It may still take several weeks to see the extent of the damage from the floods, with most of the damage happening beneath the surface of the water.