översvämningsvåg
An översvämningsvåg, or flood wave, is a rapid rise in water level that travels downstream along a river or other body of water. It is typically caused by a sudden and significant increase in water inflow, such as from heavy rainfall, rapid snowmelt, or the failure of a dam or levee. The wave is characterized by a sharp increase in discharge and water elevation, followed by a gradual decrease as it propagates.
The speed at which an översvämningsvåg travels depends on factors like the river's slope, the volume of