Matalascanas Case Study. L/O: Explain the processes that form different landforms Explain how tourism affects the coast. We will be going to Matalascanas on Thursday – we will be looking at the following sections of our course! The physical processes which create coastal land forms
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Matalascanas Case Study
Explain the processes that form different landforms
Explain how tourism affects the coast
We will be going to Matalascanas on Thursday – we will be looking at the following sections of our course!
The physical processes which create coastal land forms
The growth of tourism in an MEDC
The benefits and disadvantages of tourism in an MEDC
International / domestic tourist
Why are waves generally larger in the south west of England?
Wave energy depends on the fetch, the strength of the wind and the length of time over which the wind has blown.
fetch = the distance over which the wind has blown
The LARGER the fetch the LARGER the waves
Explain what the fetch is in your own words
Use this diagram and pages 139-140 to answer:
https://www.youtube.com/watch?v=OB5c39PZFQ4 HAWAII WAVES!
Types of waves
Explain the difference between a constructive and destructive wave?
Swash and backwash
Note: Backwash is always at right angles to the beach
Direction of movement
Backwash is always at right angles to the beach
This movement of sediment along the coastline is calledlongshore drift. As the sea hits the land at an angle you can see that the pebbles and sand will be moved to the right with the force of the sea.
Draw your own diagram of LONGSHORE drift and label: swash, backwash, longshore drift direction – GIVE IT A TITLE!
Processes of erosion
Materials carried by the waves bump into each other and so are smoothed and broken down into smaller particles.
This process involves the force of water against the coast. The waves enter cracks (faults) in the coastline and compress the air within the crack. When the wave retreats, the air in the crack expands quickly, causing a minor explosion. This process is repeated continuously.
This is the chemical action of sea water. The acids in the salt water slowly dissolve rocks on the coast. Limestone and chalk are particularly prone to this process.
This is the process by which the coast is worn down by material carried by the waves. Waves throw these particles against the rock, sometimes at high velocity.
Coastal landforms are created by a process of deposition and erosion.
Erosion wears away at the soft rock through the processes seen on the slide before.
Deposition is when the sea dumps some of it’s load in a particular place!
Draw an example of TWO land forms created by coastal EROSION and TWO by coastal DEPOSITION – use the following slides to help and the video below!
An example of headlands and bays on the Spanish coastline.
The waves attack the base of the cliff through the processes of abrasion, corrosion, hydraulic action and attrition.
Over time the cliff will be undercut and a wave-cut notch is formed.
Eventually the cliff becomes unstable and collapses. Further cliff retreat will form a wave-cut platform.
How are beaches formed?
Beaches form in sheltered environments, such as bays. When the swash is stronger than the backwash, deposition occurs.
Sometimes sand from offshore bars can be blown onto the shore by strong winds.
In such cases dunes may form – such as Bolonia on the Cadiz coast
The coast is the narrow zone between the land and the sea.
It is worth remembering that the landscape will be influenced by processes on the land as well as the sea.
Sub-aerial processes include weathering and mass movement. These processes operate on the cliff face to weaken it and provide material for coastal erosion.
There are water loving plants that can take root near the coast (e.gmarram).
There plants have very long roots and can help the create barrier to the wind (fetch) coming in off the sea.
Therefore sand build up around these plants as the sand is deposited and begins to form a dune.
What will happen to the dune if humans walk all over it? Think short term and long term!
Waves are the result of the wind blowing over the sea. They break as they approach land.
Swash and backwash describe the movement of a wave on the beach. Fetch is the distance that the wind has travelled.
Sub-aerial processes such as weathering and mass movement occur on the cliff face.
Coastal processes of erosion include hydraulic action, attrition, corrosion and solution.
Landforms created by erosion include headlands and bays, caves, arches, stacks and stumps.
Longshore drift is a method of coastal transport.
Landforms created by deposition include beaches, spits, tombolos and bars.
Spain was THIRD in the world for the top ten holiday destinations in 2009.
Tourism provides 16% of Spain’s GDP (gross domestic product)
You are going to have to find out:
Questionnaires – think who will you ask about each different point
Give options for easy answering!
Length of contract
Problems they can see
Where visiting from?
How they travelled?
What they spend money on
Where they are staying