niagra waterfall river water.jpg
river switzerland water flood.jpeg
rhone correction 3 river.jpg
niagra waterfall river water.jpg

Stream Processes & Landforms


Explain the stream channel processes of erosion, transport and deposition

Explain the resultant landforms found on floodplains

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Stream Processes & Landforms


Explain the stream channel processes of erosion, transport and deposition

Explain the resultant landforms found on floodplains

river erosion processes

river transportation processes

 

TASK

  1. Watch the video and read the overview above

  2. Describe two ways that rivers erode (2 + 2 marks)

  3. Describe two ways that rivers transport matieral (2+2 marks)

 
 

river landforms

 
 

TASK

  1. Watch video above
  2. Read pp 120-122 Core book
  3. Explain how two different landforms are produced by river processes:
    • Meanders and oxbow lakes
    • Levées
river switzerland water flood.jpeg

Floodplain Modification


Examine the human modifications of a floodplain and their effect on the size and probability of floods

Floodplain Modification


Examine the human modifications of a floodplain and their effect on the size and probability of floods

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  1. Identify two transfers and two stores shown in the diagram.
  2. Explain three ways in which human activity can reduce the time taken for water to pass through the system.
rhone correction 3 river.jpg

Stream Management Strategies


Evaluate the costs and benefits of alternative stream management strategies

Stream Management Strategies


Evaluate the costs and benefits of alternative stream management strategies

The “Wasserschloss” (the confluence of the rivers Aare, Reuss and Limmat in the Canton of Aargau) during the flood of August 2007.

The “Wasserschloss” (the confluence of the rivers Aare, Reuss and Limmat in the Canton of Aargau) during the flood of August 2007.

Brainstorm ways that rivers can be modified to reduce the risk of flooding.

 
 

river cross section

 
 

web quest: stream management strategies in switzerland

1 - THUn

Management strategies:

  1. Flood relief tunnel (Thun)
  2. Channel enlargement (Bern)
 

2 - stans, nidwalden

Management strategies:

  1. Catchment basin

  2. Flood relief channel

  3. Flood proofing

 

3 - RIver thur

management strategies:

  1. Channelisation (original management strategy)

  2. River restoration

  3. Groynes/concrete piers

  4. River bank excavation

  5. River bank conservation

  6. Mobile flood embankments

 

4 - altstatten in st. gallen, burgdorf in bern and wasen in emmental

Management strategies:

  1. Debris removal in Altstatten, St. Gallen

  2. Bridge raising in Burgdorf, Bern

  3. Flood embankments in Burgdorf, Bern

  4. Channel enlargement in Burgdorf, Bern 

  5. Catchment basin dam in Altstatten, St. Gallen

  6. Channelisation in Wasen, Emmental

 
 

resources

 
 
 

task 1

  1. Make four groups.
  2. Each person in the same group watches the same video.
  3. Work together to complete the grid, using the video and the second sheet to help you.
  4. Agree on the most important information to share.

Task 2

  1. Make four new groups with mixed members

  2. Share your management strategies with the group

  3. Listen to the other students and complete the grid

 

 
 

practice exam question