Coastal Management

Q.4b) Describe and evaluate the success of methods that might be energetic to protect sloping troughline. [15] Answers: There argon two types of methods that are normally used to protect the coastline. They are: 1) Hard technology 2) flossy engineering Hard engineering Uses structure which aims to drive the energy of waves and tides. Examples of hard engineering: 1) ocean groynes 2) Wooden groynes 3) Gabion groynes 4) didder Armour/Rip Rap squishy engineering Solutions urinate with natural processes and provide more environmentally draw soused to the management of coastal erosion and flooding. (Does not aim to close up off the coastal erosion completely) Examples of soft engineering: 1) brim replenishment 2) Beach drainage HARD ENGINEERING Sea walls A seawall is a hit of coastal fend for team constructed where the sea, and associated coastal processes, impact directly upon the landforms of the coast. The conclusion of a seawal l is to protect areas of human habitation, conservation and unfilled activities from the sue of tides and waves. As a seawall is a unmoving feature article it will conflict with the dynamic nature of the coast and blockade the exchange of deposition between land and sea. Advantages * Protects the rack of cliffs against erosion. * mint prevent coastal flooding in most areas. * democracy and conditionings are protected from erosion. Disadvantages * A sea wall is expensive to build. (£2million to £5million per km) * The construction of a small section of defence stand have disastrous effects further on the coast. * The be of maintenance is high. Wooden Groynes Wooden groynes are make up of wooden fences that are built at the regenerate slant of the coastline. They aim to stop the movement of material along the marge due to long shore drift. And their primary bearing is to build up the amount of sand on the beach. Advantages: * ambush sediment from long shore drif! t which builds up a beach. * coastal erosion is severely reduced because the...If you want to transmit a full essay, order it on our website: OrderEssay.net

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