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Sediment budget Find out about the sediment budget. We then used the powers index card to justify roughly the shape of each 30 pebbles which we picked up. Long shore drift is the transportation of material along a beach. Somerset is a rural county in the UK. We picked up a random pebble at every one metre. The swash moves beach material along the beach and the backwash, under gravity, pulls the material back down the beach at right angles to the coastline. Spurn Point — a coastal spit formed by longshore drift.

This is due to attrition breaking fragments of the pebble to small ones whilst long shore drift transports the pebbles from Gore point to Hurlstone. This is illustrated in the photograph below where a large rock groyne at Mappleton stops the supply of new beach material. Somerset is a rural county in the UK. Porlock Bay is situated on the west coast of England. I could have used a more accurate pebbleometer, clinometers and tape measure. For example if the clinometere read 0 degrees on the tallest persons forehead, that must be noted and pointed at the persons forehead for every facet which was measured. An arch is formed.

The crack become big and is eroded to form a cave due to hydraulic action, attrition and abrasion.

Porlock Bay is a good summer destination for tourists as it has good industry. Erosion is destructive waves, which wears the coastline. The average facet length at Gore point is 3. As the pebbles from Gore Point are moved to Hurlstone Point by long shore drift, erosion is happening.

Below is a list:. The bottom of the arch gets eroded and the top becomes weak and collapses into the water. The video below shows the movement of beach sediment at Mappleton, Holderness Coast. I compared Hurlstone facet length to Gore point and i rrift that Hurlstone has longer facet lengths.

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This is due to attrition breaking fragments of the pebble to small ones whilst long shore drift transports the pebbles from Gore point to Hurlstone.

Is porlock bay affected by longshore drift?

We could have used a ranging pole instead of clinometeres which could have given a more accurate result of the facet gradient. I measured 30 pebbles in total, picked 1 pebble at every one meters for 30 meters.

View the coasts menu. Spurn Point — a coastal spit formed by longshore drift. In my investigation, I could longhore improved the way i collected the data or how i could have further investigated coastal processes at Porlock Bay. The material was eroded from Gore Point and deposited at Hurlstone.

longshore drift essay

I conclude that my investigation went successful and i found out there are costal processes longshorf at Porlock bay. This leads to a lack of beach material and therefore protection for the soft, boulder clay cliffs.

Longshore Drift – Geography Revision

Long shore drift is the transportation of material along a beach. Notice how the swash moves up the beach at an oblique angle then the backwash retreats at a right angle to the coast.

longshore drift essay

Our study is on coastal processes and management at Porlock Bay. Due to the geology at Porlock bay the resistant rock, red marl, is eroded quicker than the non resistant rock which is quartzite. How about receiving a customized one? As pebbles travel from west to east attrition is occurring at all times which means the pebbles bang together and become smaller.

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Porlock Bay is lkngshore on the west coast of England. Where the removal of beach material exceeds the supply erosion occurs.

I could have improved my investigation into coastal processes at Porlock bay by using more precise measuring equipment. Pebble shape will become more rounded going from west to east — due to longshore drift the pebbles will hit the sea bed as it travels so it will make the pebbles more rounded as the sharp, rough edges will chip off as it smashes against the sea bed.

Coastal erosion eventually will erode down landforms and cliffs.

Longshore Drift – A Level Geography

Porlock Bay is in the county of Somerset and Bristol is the nearest major city. Essays Plag Checker Hire Writer. We picked up 30 pebbles in total.

longshore drift essay

In my investigation, i found out that that the smaller pebbles are at Hurlstone Point. Psychological Processes in Consumer Behavior. The soft rock easily erodes where as the hard rock is much harder to erode so it stays there and the rock then is called a headland.

Coastal Management Why is management needed at Barton on sea? We repeated those steps for every facet essy order to create a beach profile.