coasts lmgr
TRANSCRIPT
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Slide 1Lastminutegcsegeographyrevison@kingdown
Coasts
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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
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Slide 3
You may begin….. Record down your start time
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Slide 4
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How do these EROSION processes work?
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Slide 5
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How do these factors affect EROSION?
Factor Explain how affects EROSION
Wave heightSea DepthFetchCoastline shapeBeach SizeGeology ResistanceGeology StructureGeology Dip
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Slide 6
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How does weathering affect cliff retreat
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Slide 7
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How does mass movement affect cliff retreat
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Slide 8
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How does this cliff and headland turn into a cave, arch and stack.
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Slide 9
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What is Wave refraction.
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Slide 10
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How does Longshore drift work?
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Slide 11
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How does a spit form?
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Slide 12
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How does a Tombolo form?
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Slide 13
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There is a need to protect stretches of coastline from Erosion and flooding
What Conflicts will occur on the coast ?
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Slide 14
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Option Advantage Disadvantage
Groyne
Sea wall
Breakwater
Rip Rap
Revetment
Gabion
Complete the Table.
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Slide 15
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Option Advantages Disadvantages
Beach Feeding
Managed retreat
Marram Planting
Complete the Table.
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Slide 16
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How SUSTAINABLE are the management techniques
Feature TechniqueMinimises ConflictAccessibilityConserves environmentAesthetically pleasingDurabilityCostEase of maintenance
Complete the Table.
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Slide 17
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A case study of one coastal area and its landforms.
What PROCESSES operate here?What are the LANDFORMS.
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Slide 18
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A case study of one coastal area and its landforms.
Measure taken Reason Effects Conflicts
Long GroyneHengistbury Head
Gabion Cages Double Dykes
Groynes Southbourne
Cliff regradingBarton on Sea
Beach FeedingBournemouth
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