The River Severn From Source to Mouth. River Severn: Source to Mouth. Meanders are the sinuous section of the river which occur in the middle course. In the middle course the few features that occur are linked to the meanders, such as braiding, oxbow lakes and within the cross section of the meanders, characteristics like slip off slopes and cliffs. Meanders are caused when deposition and erosion act cooperatively.
The sheer force of water erodes and undercuts the river bank on the outside of the bend where water flow has most energy due to decreased friction. In contrast, on the inside of the bend where the velocity of the river is slower therefore, since the water doesn't have enough energy to maintain carrying the sediment, as there is more friction, it deposits it on the inside of the bend. The continuous processes cause the meander to migrate further downstream, and as characteristics such as discharge, channel width, depth and velocity increase the meander becomes more sinuous.
Higher Bitesize Geography - Hydrosphere : Revision. 60sManagingFloodEventsHardEngineering. Sample Materials on Coastal Landscapes. iGCSE Geography Coasts - Constructive v Destructive Waves - GeogPodCast. Longshore Drift. Landforms Coasts (GCSE Geography) BBC Bitesize - National 5 Geography - Coastlines of erosion and deposition - Revision 1. BBC Bitesize - National 5 Geography - Coastal erosion and landforms. BBC Bitesize - National 5 Geography - Understanding waves. BBC Bitesize - National 5 Geography - Understanding waves.
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