Term
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Definition
| The grinding away of bedrock by fragments of rock and sand - like sandpaper |
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Term
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Definition
| The process by which waves cause rocks and pebbles to bang into each other, gradually making them smaller and smoother |
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Term
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Definition
| Acids contained in sea water will dissolve some kinds of rock like chalk and limestone |
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Term
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Definition
| Air may become trapped in joints and cracks on a cliff face. When a wave breaks, the trapped air is compressed which weakens the cliff and causes erosion |
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Term
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Definition
| Small particles are carried in water, e.g. silts and clays, which can make the water appear cloudy |
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Term
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Definition
| Load is bounced along the sea bed |
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Term
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Definition
| Pebbles and larger sediment are rolled along the sea bed |
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Term
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Definition
| What happens when the swash is stronger than the backwash - when the sea loses energy it drops the sand, rock particles and pebbles it has been carrying |
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Term
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Definition
| When the wave breaks and water is washed up the beach |
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Term
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Definition
| When water from a broken wave runs back down the beach |
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Term
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Definition
| When the swash is stronger than the backwash, so the water moves more sand up than it brings back down |
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Term
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Definition
| When the backwash is stronger than the swash, so the water brings down more sand than it brings up the beach |
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Term
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Definition
| How far the wave has travelled - the power of the wave |
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Term
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Definition
| When wind blows over the surface of the sea causing friction, which produces a swell in the water which moves the wave forwards |
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Term
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Definition
| The gradual wearing away of rock and material found along the coast - the force of waves hitting it eventually causes it to break up and fall apart |
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Term
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Definition
| The movement of material along a coast by waves which approach at an angle to the shore but recede directly away from it |
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Term
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Definition
| Where a coastal settlemet is prevented from expanding, due to sea on one side and rural areas inland |
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Term
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Definition
| The movement of people to coastal areas |
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Term
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Definition
| The breaking down of something slowly, especially by chemical action |
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Term
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Definition
| A consistent change in the sea level that affects oceans throughout the world |
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Term
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Definition
| Changes in the sea level relative to the land brought about by the build up or loss of ice on the land |
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Term
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Definition
| The weathering of rocks which occurs when water which is penetrating joints and cracks freezes and expands |
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Term
| Integrated Coastal Management |
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Definition
| An approach which sees the coastal zone as the interactive and dynamic complex of subsystems - various parts of the coastal zone cannot be considered for isolation |
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Term
| Shorline Management Plans (SMPs) |
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Definition
| Plans which deal with actual and potential coastal erosion and its relation to planned or existing development activities along the coast |
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Term
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Definition
| A long series of ocean waves generally produced by wind and lasting after the wind has ceased |
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Term
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Definition
| Where there is no investment in coastal defences or operations, so nothing is done one way or another |
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Term
| SMP - Managed Realignment |
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Definition
| Allowing the shorline to move backwards and forwards with management to control or limit the movement |
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Term
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Definition
| Maintaining or changing the standard of protection, in order to try and keep the coastline where it already is |
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Term
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Definition
| Building new defences on the seaward side of the original defences |
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