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Norfolk Coast - Coggle Diagram
Norfolk Coast
Geomorphic processes
Powerful waves
from the North East where there is over 4000km of fetch
Longshore drift
Creates spits
Blakeny point
Scolt head island
Mechanical Weathering
Freeze-thaw
Mass movement
Slumping
Cliffs in the east near happisburgh
Coastal erosion in the east
Coastal deposition in the West
Coastal Landforms
Actively eroding till cliffs
Overstrand
Happisburgh
Rapid coastal retreat
Causing loss of land and infrastructure and homes
Spits
Caused by longshore drift
Blakeney Point
Scolt Head Island
Sand Dunes
Holkham
Holme Dunes
Salt Marshes
Stiffkey
Beaches
More towards the West
Holme
Holkham
4 processes
Erosion
Abrasion and hydraulic action change cliff faces constantly
Deposition
Causes spits and beach landscapes
Transportation
Sediment transported by longshore drift is deposited to form spits and beaches.
Longshore drift transports sediment from east to west
Weathering
Freeze-thaw
makes till cliffs vulnerable to geomorphic processes
Human impact
Coastal defences
Hard engineering
Gabions
Coastwatch station
Sea walls
Cromer
Sheringham
Overstrand
Groynes
Wells
Rock armour
Cromer
Overstrand
Sheringham
Soft engineering
Beach nourishment
Walcott
Planting trees
Holkham
Constructing boardwalk
Holkham