River discharge is the volume of water flowing through a river channel. This is the total volume of water flowing through a channel at any given point and is measured in cubic metres per second (cumecs)

Discharge is calculated as follows:

cross sectional area of a river or stream   x mean velocity of water

  1. Describe three relationships shown on the diagram above e.g. as discharge increases, velocity increases


  1. Make simple sketches of the diagram above
  2. Read 107 - 109 (Core Book): Discharge, stream flow and channel shape.
  3. Make detailed notes under the different headings.