Coasts flashcards

coastal landforms

coastal management

waves wear away the coast using four processes of erosion

hydraulic action

corrasion

attrition

corrosion

destructive waves erode the coast

wind and destructive waves

fetch and destructive waves

cliffs retreat as a result of erosion, weathering and mass movements

coastal weathering

headlands and bays form where erosion resistance is different

headlands are eroded to form caves, arches, stacks and stumps

cove

coast

constructive waves

longshore drift LSD: the movement of material along the coast by the action of waves

four processes of transportation

deposition

beaches

sand beaches

shingle beaches

spits:
form at sharp bends in the coast - at river mouth
LSD transports material past the bend and deposits it in the sea
wind/waves curve end of spit

bar:
formed when a spit joins two headlands together
cuts off bay from sea
lagoon forms behind

examples of coastal landforms

economic reasons to protect the coast

social reasons to protect the coast

environmental reasons to protect the coast

hard engineering coastal defences

soft engineering coastal defences