Aggradation is the progressive accumulation of sediment along or within a stream.

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Aggradation is the gradual build-up of sediment in a stream, which can occur due to factors like erosion, deposition, and changes in streamflow. This process can result in changes to the stream channel, including changes in water depth, flow velocity, and channel shape. Aggradation is a natural phenomenon that occurs in many streams and rivers, and can play an important role in the formation of new landforms and habitats.

Aggradation Is the Progressive Accumulation of Sediment Along or Within