Aggradation

Aggradation is a geological process where sediment, such as soil, sand, or gravel, accumulates and builds up in a river or stream, causing the land surface to rise. This often occurs when a river transports more sediment than it can carry away, usually due to increased erosion upstream or a decrease in water flow. Over time, aggradation can create features like new landforms, floodplains, or bars in the river. It plays a vital role in shaping a river’s landscape, influencing habitats, and impacting flood management.