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Wave Scour. How waves build beaches and can destroy them. Waves are reflected back from the sea wall, pulling sand out to sea. Wave scour undercuts the sea wall. Wall becomes unstable. Seawall collapse. Wave can now attack the coast.

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wave scour

Wave Scour

How waves build beaches and can destroy them

 Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

slide2
 Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools
slide3
 Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools
slide4

Waves are reflected back

from the sea wall, pulling

sand out to sea

 Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

slide5
 Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools
slide6
 Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools
slide7
 Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools
slide8
 Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools
slide9

Wave scour undercuts

the sea wall

 Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

slide10
 Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools
slide11
 Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools
slide12

Wall becomes unstable

 Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

slide13

Seawall collapse

 Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

slide14

Wave can now attack the coast

 Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

slide15
 Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools