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Core Physical – Rivers, floods and management

Topic Key Theme Resources
Core Physical Section

Rivers, floods and management

   
The drainage basin Hydrological cycle – the water balance. Philip Allan: 2 – 4

Oxford: 8 – 13

Factors affecting river discharge The storm hydrograph. Philip Allan: 5 – 7

Oxford: 14 – 17

 

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The long profile Changing processes: types of erosion, transportation and deposition, types of load; the Hjulstrom curve. Philip Allan: 7 – 13

Oxford: 18 – 21

 

Geofacts

Valley profiles Long profile and changing cross profile downstream, graded profile, potential and kinetic energy. Philip Allan: 13 – 16

Oxford: 22 – 25

 

Geofacts

Changing channel characteristics Cross profile, wetted perimeter, hydraulic radius, roughness, efficiency, and links to velocity and discharge. Philip Allan: 16 – 18

Oxford: 26 – 32

Landforms of fluvial erosion and deposition Potholes, rapids, waterfalls, gorges, meanders, braiding, levees, flood plains and deltas. Philip Allan: 18 – 24

Oxford: 33 – 40

 

Geofacts and Facebook

Process and impact of rejuvenation Knick points, waterfalls, river terraces and incised meanders. Philip Allan: 24 – 25

Oxford: 41 – 44

Magnitude Frequency analysis of flood risk. Geofacts
Physical and human causes of flooding Two case studies of recent flooding events should be undertaken from contrasting areas of the world. Philip Allan: 26 – 29

Oxford: 45 – 47

 

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Impact of flooding Two case studies of recent flooding events should be undertaken from contrasting areas of the world. Philip Allan: 29 – 30

Oxford: 48 – 52

 

Geogacts

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Flood management strategies Hard engineering – dams, straightening, building up of levees, diversion spillways.

Soft engineering – forecasts and warnings, land use management on floodplain, wetland and river bank conservation and river restoration.

Philip Allan: 31 – 36

Oxford: 53 – 63

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