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Dawlish Warren Fieldtrip.

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Introduction

Dawlish Warren Fieldtrip - year 10 Introduction Dawlish Warren is a small village in south Devon designed to be a tourist attraction. Here is a map showing Dawlish Warren's location: Dawlish warren is a major sand spit at the mouth of the River Exe, and is visited by over 20,000 people per day in peak holiday season. A spit is a ridge of sand or shingle projecting from the land into a body of water. It is deposited by waves carrying material from one direction to another across the mouth of an inlet. In the case of Dawlish Warren, deposition in the water behind the spit has caused the formation of a salt marsh. ...read more.

Middle

It is an SSSI (Site of Special Scientific Interest)as well as an NNR (National Nature Reserve). 6. COASTAL PROTECTION- the spit is a giant natural breakwater, protecting low lying areas of the Exe estuary behind it, from waves and flooding. 7. BUSINESS- over 40 local businesses rely on visitors to this area, e.g. cafes, gift shops, etc. The aim of the fieldtrip will be to investigate the following: * COASTAL DEFENCE * BEACH PROFILES * SAND DUNES * TOURISM Vs NATURE CONSERVATION This section of the project will study the main Coastal Defences that are visible on the Dawlish Warren coastline. I will be looking at: * Groynes * Sea wall * Rip rap The groynes are situated on the beach spaced 100-200m apart. ...read more.

Conclusion

Erosion is the process by which the rocks and other landforms are eroded away by the fore of the waves. The Langstone rock is severely affected by erosion. Caves and pressure cracks are clearly visible on the surface of the rock, and the waves forming undercutting on the side of the rock nearest to the shoreline. These observations are problems that will soon become worse. The coves will turn into arches, (visible on the Dawlish Warren beach side of the rock), and then when the arch collapses a stack will be left. Deposition is another key natural process that influences the natural landforms. Dawlish Warren was formed by the deposition of large amounts of sediment to create the spit. The longshore drift also deposits large amounts of sand and sediment on the beach, but this is protected by the groynes. ...read more.

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