Coasts Taboo
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This document discusses various coastal landform processes related to beach erosion and protection. It describes how waves erode cliffs and shorelines through hydraulic action, abrasion, and corrosion. It also explains coastal defense structures like groynes, sea walls, and riprap that are used to protect cliffs and beaches from erosion. Longshore drift is mentioned as the movement of sediment along the coastline.
Coasts Taboo
- 1. BEACH LONGSHORE DRIFT HYDRAULIC ACTION sand shingle deposit sandcastle sunbathe holiday mass suntan movement along zig-zag estuary Spurn Head material shingle deposit water air crack cliff break waves crash BACKWASH TRACTION EROSION movement back water wave swash down beach wash transport roll heavy rock bed beach energy wear away rock cliff attrition corrosion corrosion hydraulic power waves water
- 2. ATTRITION ABRASION RIP-RAP erosion pebbles rocks material crash each other wear cliff erosion waves water throw hit rock wear away rocks boulders Norway cliff protect waves erosion SALTATION GABION SEA WALL transport rocks water bounce bed heavy energy waves boulders cage wire cliff protect defence erosion concrete expensive ugly protect cliff erosion
- 3. CORROSION WAVE SPIT erosion dissolve wear away chemicals water circular surf down movement wind Hawaii swash backwash bar deposit shingle sand Spurn Head estuary longshore drift movement GROYNE STACK ARCH wood rock sea defence stop longshore drift trap protect beach chalk headland Old Harry erosion arch stump cliff rock chalk rock cliff arch erosion stack Old Harry cave