Slide 1Lastminutegcsegeographyrevison@kingdown

Rivers

Slide 2Lastminutegcsegeographyrevison@kingdown

Preparation before starting this Revision unit you need to have:-•Sorted you theory notes and produced a contents page•Have your case studies completed

IntroductionThis unit is to give you 30 minutes of Geography Revision on the Hazards topic. Work through the tasks and stick to the timings. You could work through this unit more than once

ResourcesYou will find these resources usefulContents page from your files, the supporting PowerPoint presentation (this can be downloaded to your MP3 player or phone) the topic glossary

Slide 3

You may begin….. Record down your start time

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30 25 20 15 10 5 0

What do each of these terms mean?

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Complete the boxes using the terms from the previous slide

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Learn these terms

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Storm HydrographsWhere is1. The rising Limb2. The falling limb3. Basin Lag4. Peak Flow5. Base flow6. Storm Runoff

What is rainfall Intensity ?

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How do these factors affect the Storm Hydrograph ?

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FLOODS Complete the table Cause Explanation and Example

Heavy Rain

Flash Flood

Snow melt

Monsoon

Dam Collapse

Urban area

Deforestation

Storm Surge

Hurricane

Tsunami

Sea level rise

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LEDC Case study to illustrate the causes, effects and management of river flooding

Location Asia Floods Time and Date 2007

Extent

What happened

Effects on people Primary Secondary

Effects on buildings Primary Secondary

Effects on Economy Primary Secondary

Response Short term Response Long Term

How was the event Managed?

Complete this TABLE

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MEDC Case study to illustrate the causes, effects and management of river flooding.

Location Boscastle Time and Date 2009

Extent

What happened

Effects on people Primary Secondary

Effects on buildings Primary Secondary

Effects on Economy Primary Secondary

Response Short term Response Long Term

How was the event Managed?

Complete this TABLE

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Flood Strategies

Strategy Example How it works

Dams

Engineering

Levees

Barriers

Management

Conservation

Restoration

Alter Urban surface

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Weathering Erosion Deposition

WeatheringMechanical

Chemical

Biological

ErosionAbrasion

Attrition

Hydraulic action

Solution

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Transport Description

Bedload

Saltation

Suspension

Solution

Complete the table

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How do the 3 stages differ?

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UPPER COURSE

Name the main processes and the key features of this stage

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MIDDLE COURSE

Name the main processes and the key features of this stage

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30 25 20 15 10 5 0

LOWER COURSE

Name the main processes and the key features of this stage

Time’s Up

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