Outline the main geographical processes relevant to Coastal Management.
The main geographical processes relevant to coastal management are:
Abrasion is the mechanical scraping of a rock surface by friction between rocks and moving particles during their transport by wind, glacier, waves, gravity, running water or erosion. Hydraulic action is a form of erosion caused by the force of moving water currents rushing into a crack in the rock face. The water compresses the air in the crack, pushing it right to the back. As the wave retreats, the highly pressurized air is suddenly released with explosive force, capable of chipping away the rock face over a period of time.Corrosion Is the result of wears acid wear on the rock from the sea constantly hitting the cliff face. Coastal erosion is the wearing away of land and the removal of beach or dune sediments by wave action, tidal currents, wave currents, or drainage. Waves, generated by storms, wind, or fast moving motor craft, cause coastal erosion, which may take the form of long-term losses of sediment and rocks, or merely the temporary redistribution of coastal sediments; erosion in one location may result in accretion nearby.
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