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The effects of longshore drift
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Coastal Erosion Problems in Walton on the Naze
The reason for doing this piece of coursework is to investigate the
coastal erosion problems in Walton on the Naze. In this project I will
be answering one main question: What should be done about the erosion
of the Naze?
Walton on the Naze is a seaside resort along the coast of Essex just 8
miles south of Harwich, it is the most easterly part of the Essex
coastline and it is surrounded by the North Sea. Walton is situated in
southeast England and in north Essex, near Clacton (11km direct),
Colchester (27km direct), and Brightlingsea (19km direct). It is a
small English seaside town with a pier and a sandy beach. The Naze
itself is about 1.5 miles north of Walton pier.
The Naze is a promontory that stretches northwards from the edge of
Walton. It separates the inlet of Walton channel to the west, from the
North Sea to the east. Part of the Naze is made up of a hill, which
is being eroded by the sea so that cliffs, up to 20 metres high rise
directly from the beach.
It is a small English seaside town with a pier and a sandy beach. The
Naze itself is about 1.5 miles north of Walton pier.
In 1977 large defence work, including a sea wall and breakwaters, were
undertaken on the southern part of the Naze to protect the cliff top
properties. The unprotected length of coastline runs from the Tower
Break water northwards for approximately 1,000 meters to the start of
the old Anglian Water Authority floodwall. The cliffs decrease in
height northwards from 20 meters to 4 meters. The cliffs are made up
of sand and gravel deposits that lay on top of London clay and it is
because of t...
... middle of paper ...
...Possible improvements:
To improve my results I would use more sophisticated equipment such as
an electronic angle measurer for measuring the angles of the cliff. I
would also hire people to do the work for me so I would be able to get
more accurate results, in a shorter length of time. I would also do a
door-to-door survey, so I could get more questionnaire results and
they would be of what the people next to the sea and people a bit
further away from the sea and make a comparison on the two results. I
would also take more measurements at different times of the year that
were accurate and I could make a better comparison between the
results. I would also take more long shore drift measurements. I
could have also done my write up a bit quicker. We could have also
returned to the Naze and taken more measurements.
See Location Map of the coastline being studied from Herne Bay to Reculver.
Investigation on Coastal Erosion In Porlock Bay Aims ---- Aim 1: To find out if beach material is moved across Porlock Bay by longshore drift. Aim 2: To find out which type of sea defense is best for Porlock bay. If L.S.D. (long shore drift) were taking place I would expect to find: a) Deposition at one end of the bay and against any abstractions such as groynes. b)
The only landmarks available to the eye are dozens of miles of ocean waves, occasionally broken up by an ocean going freighter or container ship that might sometime plod past the area, on their way inbo...
Dawlish warren is a major sand spit at the mouth of the River Exe, and
Yes this feature is the result of erosion and depositional processes however, it is not associated with the current water course. This feature may be the result of a Gilbert type delta that once occupied this area. Gilbert type deltas have three main components; topsets, foresets and bottomsets. Topsets are fluvial sediments (primarily sandur deposits) that were deposited on the subaerial delta surface. Erosive events occurring on the upper forslope can result in downslope channels and chutes. These features are then eroded by either strong currents or by debris flow resulting in these channels and chutes to become filled. Foresets are a combination of sand and gravel facies. The are deposited by gravitational processes on the delta foreslope and the grains tend to become finer and more angular downslope. Bottomsets consist of fine grained silts and clay and are deposited at the foot of the delta front.
coast (as shown in pictures 1 & 2). The area of sea is subject to the
Gloucester Massachusetts is known for its fishing industry. Over 1200 people’s jobs in Gloucester lay in the fishing industry. The fishing industry first derived when people from Europe came over looking for a better life. Gloucester is America’s oldest seaport, and now it is fighting to survive. Now with new rules, and diseases in the sea, the fishing industry will never be what it was decades ago.
The Corrymeela Community that is located on the Antrim Coast is a retreat center which hosts groups and conferences from all over Northern Ireland and the world. Most of the year is spent with different types of groups, including youth, and the summer is spent hosting families who have been affected by the Troubles either financially, by violence, or both.
The Don Valley Brickwork consists of many different layers of geological deposits, allowing us to observe and have a better understanding of how the sediments we see today are formed. The most bottom layer in the Brickworks are from the Georgian Bay Formation, and consists of grey- shale bedrocks. Fossils are often found in this layer and it is estimated that this deposit of sediments is around 445 million years old. Above the bedrocks is a thin layer of grey clay sand and gavels left behind by the Illinoian Glacier. This layer is called the York Till and occurred around 135,000 years ago. The next layer consists of a sandy deposit called the Don Formation, which is formed by the Sangamonian Interglacial Stage. Many plant and animal fossils are found in this layer due to warmer climate around 120,000 years ago. Above it lies the Scarborough Formation, which consist of clay and sand. This sediment likely occurred 115 - 106,000 years ago. The next layer above is the Poetry Road Formation, and consist of sand and gravel. This layer is likely formed during the early Wisconsin glacial substage around 106- 75,000 years ago. Higher is the Sunnybrook Drift which was formed 60 – 75,000 years ago. And on the surface, is the Halton Till, which was left behind by the final push of the Wisconsin Glacier.
Semaphore Beach is affected by many factors such as natural processes and human impacts including marine litter and the discharge of stormwater. Therefore, several plans have been employed to ensure that the coast is supported through the method of counteracting erosion. However in the future, many management strategies have been put into consideration as well as the environmental, economic and social impacts as well as the predicted consequences. These impacts include traffic related incidents, noises and air pollution and the disruption of wildlife and the erosion of dunes. A method that should be considered for future management of the beach is the use of a concave sea wall, although efficient, this structure would be quite costly. Without the use of coastal management, Semaphore Beach would be unsupported, therefore negatively being affected by a variety of
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see two piers jutting out into the Pacific. On either side of the piers are