UK: According to a study done by a team of researchers based in University of Salford, England, images taken from a UAV suggest, excessive management of floodplains limit their ability to hold water and slow the flow of floodwater. Floodplains are those alluvial plain that may or may not experience occasional or periodic flooding. The team observed, the drainage channels on floodplains meant water was returned to rivers too quickly, exacerbating flooding further downstream. The team adds, the drone allowed them to gather a unique view of the impact of the floods that hit northern England. "Because we have the UAV we can access areas really quickly and the height we can fly at, you don't have to get very close to the river because you can fly it 500 metres away from you where you can get the images," explained Neil Entwistle from the university's School of Environment and Life Sciences.
Source: BBC News