RIVERS, FLOODS AND MANAGEMENT

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Syllabus

  1. The drainage basin hydrological cycle: the water balance.
  2. Factors affecting river discharge: the storm hydrograph.
  3. The long profile – changing processes: types of erosion, transportation and deposition, types of load;
  4. The Hjulstrom curve.
  5. Valley profiles – long profile and changing cross profile downstream, graded profile, potential and kinetic energy.
  6. Changing channel characteristics – cross profile, wetted perimeter, hydraulic radius, roughness, efficiency and links to velocity and discharge.
  7. Landforms of fluvial erosion and deposition – potholes, rapids, waterfalls, meanders, braiding, levees, fl ood plains and deltas.
  8. Process and impact of rejuvenation – knick points, waterfalls, river terraces and incised meanders.
  9. Physical and human causes of fl ooding – location of areas of high risk in a more developed and a less developed country case study, magnitude, frequency (risk) analysis.
  10. Impact of fl ooding – two case studies of recent events should be undertaken from contrasting areas of the world.
  11. Flood management strategies – to include hard engineering – dams, straightening, building up of levees, diversion spillways, and soft engineering
  12. – forecasts and warnings, land use management on fl oodplain, wetland and river bank conservation and
    river restoration.

GOOD GENERAL WEBSITES

http://www.tulane.edu/~sanelson/geol204/riversystems.htm (Daniel Marques)

http://water.usgs.gov/wsc/glossary.html an A to Z of hydrology terminology

Virtual River This site is a really good introduction to river systems

Kay's Geography Site good selection of links to other sites

Bangladesh Floods 2004

Mississippi Floods 1993