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Published byOswald Blake Modified over 6 years ago
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Different Waves Aims: To understand the different types of waves, different beach profiles and beach morphology
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Specification content
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Starter Ocean waves and Erosion.
Define the key terms: WAVES FETCH TIDES SWASH BACKWASH
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Changes in waves as they approach the shoreline (see p8 booklet)
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A-LEVEL GEOGRAPHY TEACHING AND LEARNING RESOURCES
Different Waves The type of waves along a coast are crucial to understanding the landforms. There are two types. A constructive wave ‘SPILLING’ waves A destructive wave ‘PLUNGING’ waves A-LEVEL GEOGRAPHY TEACHING AND LEARNING RESOURCES
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Constructive vs Destructive (see p8 booklet)
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Beach Morphology(see p9 booklet)
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THE SWASH OF A CONSTRUCTIVE WAVE DEPOSITS LARGER MATERIAL AT THE
BERM – THE SWASH OF A CONSTRUCTIVE WAVE DEPOSITS LARGER MATERIAL AT THE TOP OF THE BEACH. BERMS ARE USUALLY COMPOSED OF SHINGLE. BEACH PROFILES ARE STEEPER IN THE SUMMER
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OFFSHORE BARS – BERMS ARE ERODED BY PLUNGING WAVES AND HIGH ENERGY SWASH. STRONG BACKWASH OF A DESTRUCTIVE WAVE TRANSPORTS SEDIMENT OFFSHORE. BEACH PROFILES ARE SHALLOW IN THE WINTER
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See page 10, booklet)
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Beach morphology (See p10 booklet)
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Plenary: What shapes a coastline?
Look at this photo. Try to come up with as many factors/processes which may be shaping this coastline. A-LEVEL GEOGRAPHY TEACHING AND LEARNING RESOURCES
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