Describe and Explain the Concept of a Sediment Cell and How It Can Be Used in Coastal Management
Describe and explain the concept of a sediment cell and how it can be used in coastal management
A sediment cell is a length of coastline in which interruptions to the movement of sand or shingle along the beaches or near shore sea bed do not significantly affect beaches in the adjacent lengths of coastline. In addition to this, it can also be referred to a sediment that is moved along the coast by long shore drift appears to form part of a circular cell which leads to it eventually returning up drift. Dredging of offshore shingle banks can therefore contribute to beach depletion. Also, sediment cell includes coastal processes which are all done by the process of long shore drift going along the beach. In addition to all this, landforms are also produced by the overall process of the sediment cell.
A good case study to cover sediment cells is the whole of Britain. There are 11 main sediment cells that lay on the coasts of Britain. Those sediment cells vary in size. The larger ones are divided into smaller sections ( sub-cells ), to allow closer study and management. An example of a sub-cell is the one that operates between Flam borough Head and the Humber Estuary on the east coast of England. Flam borough Head is one of the most spectacular areas of chalk cliffs in Britain, standing 400 feet high. The chalk was laid down millions of years ago when the last dinosaurs were roaming the earth. Figure 1 shows part of the Flam borough sediment cell. This one is situated in the near north landing of Flam Borough.
A stack is produced when the cliff recedes and the wave-cut platform develops, the arch will eventually collapse, leaving its isolated portion as a stack standing above the platform .In time, the sea will exploit the wave-cut notch at the base of the stack, leading eventually to its collapse. A small raised portion of the wave cut platform may be left marking the former position of the stack. Then this is known as stump1.
Figure 1.
This is a cliff that
A sediment cell is a length of coastline in which interruptions to the movement of sand or shingle along the beaches or near shore sea bed do not significantly affect beaches in the adjacent lengths of coastline. In addition to this, it can also be referred to a sediment that is moved along the coast by long shore drift appears to form part of a circular cell which leads to it eventually returning up drift. Dredging of offshore shingle banks can therefore contribute to beach depletion. Also, sediment cell includes coastal processes which are all done by the process of long shore drift going along the beach. In addition to all this, landforms are also produced by the overall process of the sediment cell.
A good case study to cover sediment cells is the whole of Britain. There are 11 main sediment cells that lay on the coasts of Britain. Those sediment cells vary in size. The larger ones are divided into smaller sections ( sub-cells ), to allow closer study and management. An example of a sub-cell is the one that operates between Flam borough Head and the Humber Estuary on the east coast of England. Flam borough Head is one of the most spectacular areas of chalk cliffs in Britain, standing 400 feet high. The chalk was laid down millions of years ago when the last dinosaurs were roaming the earth. Figure 1 shows part of the Flam borough sediment cell. This one is situated in the near north landing of Flam Borough.
A stack is produced when the cliff recedes and the wave-cut platform develops, the arch will eventually collapse, leaving its isolated portion as a stack standing above the platform .In time, the sea will exploit the wave-cut notch at the base of the stack, leading eventually to its collapse. A small raised portion of the wave cut platform may be left marking the former position of the stack. Then this is known as stump1.
Figure 1.
This is a cliff that
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