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Coastal processes - revision notes

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Introduction

What are coasts? * Unique interface between land and sea * The narrow zone where land and sea directly interact * Dynamic ever changing environment * 50-60% of the world's population live on coastal plains, refer to world map and the major cities. The coastal systems is an example of an open system in that it has inputs from outside like river sediment, and outputs into other systems like sediment transported into deep sea's. ...read more.

Middle

What is a shoreline management plan? 'A document which sets out a strategy for coastal defence for a specified length of coast taking account of natural coastal processes and human and other environmental influences and needs' This is used to divide up the coast and take in consideration of the problems occurring in each individual sediment cell, there are 11 sectors, which need to be cared for with things such as: * Natural coastal processes * Coastal defence needs * Environmental considerations * ...read more.

Conclusion

Orbital movements of water molecules which deminish with depth. Swash Tides Tides are controlled by gravitational effects mainly by the moon but partly by the sun. Mass of moon smaller than the sun but it is closer to Earth. * Attracts/ pulls water to the side of Earth where it is situated Other Factors: --> Earth rotation --> Destruction of land --> Depth of oceans Bulge = High tide Moon orbits Earth (29days) = Lunar Month Moon and sun alignment = Spring tide Moon and sun at right angles = Neap tide ...read more.

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