Weatherwatch: how repeated flooding can shift levees

Researchers from North Carolina University have studied the effects of storms on flood defences and developed a way of monitoring minute movements by satellite A new study from North Carolina University suggests that repeated flooding has a cumulative impact on flood defences, damaging them in ways that may not be picked up by current inspection techniques.Earth embankments, or levees, are widely used for flood protection in the US, and are typically more than fifty years old. The study, in Engi