COAST Pure Geog

1. Geography Review
Series
Coast

2. Overview
• Part 1
–Processes & Landforms
–Erosion
• Corrasion, Attrition, Solution, Hydraulic
Action
• Notch, Cave, Arch, Stack, Stump, Wave-
cut platform
–Transportation
• Longshore Drift
• Spits, Tombolos

3. Overview
• Deposition
–Beach Formation
–Spit & Tombolo
• Functions of a coast
–Human uses
• Residential
• Transportation
• Industrial
• Recreation

4. Corals
•Coastal Protection
–Natural wave barrier
•Tourist Attraction
–Great Barrier Reef

5. Mangrove
• Plant adaptations
–Seed adaptations
–Root adaptations
–Function of adaptations
• Uses for mangroves
–Resource
–Coastal protection

6. Geographical Investigation
•Hypothesis
•Beach profile
measurements
•Longshore Drift
measurements

7. Hypothesis
• Not a question
• Statement
• Something that you believe in,
that can be tested by the data
we are collecting.

8. Beach Profile
• Measurements that are taken to measure
gradient
• Normally a few transacts are taken.
• Comparison of different transacts can be
done.
–Strength of waves –
destructive/constructive waves
–Effectiveness of coastal protection
measures

9. Longshore Drift
• Use of flotation device to
measure the speed of longshore
drift.
• Impact on the strength of the
waves
• Linked impact on gradient of the
beach

10. Sample (Coast)
GI questions (4-6m)
• Fig 2 shows students collecting data at a
beach. Explain what you think they are
doing and what can the data show. (5m)
• Using the data , plot the beach profile at
transact A and B.
• What precautions should you take when
conducting such fieldwork?

11. Sample (Coast)
Explanation questions (4-6m)
• Briefly explain how constructive waves
and destructive waves differ.
• With the aid of a suitable, fully-labelled
diagram, explain how sediments are
moved along the coast.
• Besides Attrition, explain how the other 3
coastal erosional processes help create
the coastal landforms shown below.

12. Sample (Coast)
Explanation questions (4-6m)
• Explain how headlands and bays are
formed.
• Explain how human activity affects the
rate of coastal erosion.
• Briefly explain why the waves around
Australia are suitable for windsurfing.

13. Sample (Responses)
Comparison (open-ended) 8m
• Factor X is the most important factor
that that erodes a coast made of
limestone. How far do you agree… …
• Assess how effective prop roots are
in helping mangroves survive in salt
water.