River Geomorphology and Sediment Yield

Rivers as networks; Sediment sources, transport and depositional forms; River channel form and monitoring techniques

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1. What is a drainage network?

  • The movement of water from the tributaries into the main channel
  • The networks of fauna and flora that operate in the catchment area of a river
  • Part of the land surface which is drained by a unitary river system
  • The movement of water through the channel itself from source to mouth
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2. There is a nested hierarchy of scales of drainage basin, e.g. Humber (large drainage basin)--> Colne (small drainage basin)

  • True
  • False

3. What marks the perimeter of a drainage basin?

  • Footpaths
  • Undulating landscape
  • Watershed
  • Similar biodiversity
  • The river banks

4. A watershed is the high point or divide bordering a river basin from which headwater streams flow to different river systems

  • True
  • False

5. Drainage basins are described as 'open systems' (Gilvear, 2005). Which of these are inputs?

  • Evaporation and river discharge
  • Precipitation and evaportation
  • Precipiation and sediment
  • Sediment and evaportation
  • Sediment and river discharge
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