Which downstream effect emerges when a stream's sinuosity hits its limit?

💡 Explanation

River avulsion follows because increased sinuosity boosts hydraulic radius, exceeding the stream's energy threshold needed for curvature maintenance, exhibiting channel straightening via cutoffs. Therefore straightened channel happens instead of floodplain growth because less energy is dissipated lateral erosion.

• Which risk escalates when ephemeral stream discharge exceeds capacity on arid-region alluvial fans?
• Which process causes temporary meromictic conditions in a lake following a extreme rainfall event?
• Which phenomenon causes stratovolcano formation at subduction zone plate boundaries?
• Which outcome disproportionately intensifies precipitation in atmospheric river streams?
• Which mechanism causes tsunami generation during a shallow-focus subduction zone earthquake?
• Which mechanism amplifies volcanic explosivity when magma ascending through a subduction zone encounters groundwater near the surface?