Different Waves Aims To understand the different types

Different Waves Aims: To understand the different types of waves, different beach profiles and beach morphology

Specification content

Starter • Ocean waves and Erosion. • https: //www. youtube. com/watch? v=So. Ob 4 fg 7 cq k • • • Define the key terms: WAVES FETCH TIDES SWASH BACKWASH

Changes in waves as they approach the shoreline (see p 8 booklet)

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

Constructive vs Destructive (see p 8 booklet)

Beach Morphology(see p 9 booklet)

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

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

See page 10, booklet)

Beach morphology (See p 10 booklet)

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