A case study on the Holderness Coastline. Includes facts, description of the location, factors affecting the coast, schemes to stop the effect of erosion, and information about key areas on the Holderness coast. Geology of coastline is also mentioned.
COASTS CASE STUDY CASE STUDY – The Holderness Coast
Location (& topography): cont. cont.
• Located in East Yorkshire, on the east • deposition (deposited by ice sheets.) • Salt marshes and mudflats
coast Yorkshire. • Sea levels rose at the ned of the last Beaches - deposition:
• Cliffs are made of boulder clay (till.) glacial period – North Sea started to • Wide sand and pebble
• It is 61km long – stretches from erode thick till = present day cliffs. formed near Bridlington –
Flamborough Head to Spurn Head. Wind: winds and waves.
• In sediment cell 2. • Large fetch – wind from north-east.
• Areas of low pressure move down North Challenges:
Background information: Sea – creates storm surges = leads to • Has retreated around 4
• erosion and flooding (1953 – 300 died.) years.
Fastest eroding coastline in Europe.
• It is exposed to powerful destructive • Around 30 villages have be
waves coming from the North Sea. Landscape: • Loss of settlements an
• Soft boulder clay is easily eroded – in Headlands and Wave-Cut Platforms - Skipsea is at risk and
Great Cowden the rate of erosion is over erosion: farmland is lost each year.
10m/yr. • In the north, boulder clay overlies chalk • Loss of infrastructure –
• Boulder clay is prone to slumping. – a headland has formed at Flamborough station 25m from th
• Prevailing winds and longshore drift move Head. (Easington).
material southwards. • Wave-cut platforms have also formed. • Loss of sites of Sp
• Material is deposited where it meets the • Flamborough Head – has arches, stacks Interest (SSSI) – lagoons
River Humber – Spurn Head. and stumps.
Slumping Cliffs – mass movement: Existing Schemes:
• There are frequent slumps (boulder • Schemes in place not susta
Factors Affecting the System:
clay.) • Groynes trap sediment –
Geology:
• Cliffs are tiered – slumps haven’t of beaches protecting
• Chalk (relatively resistant rock) forms a
occurred. increases erosion downd
broad arc from Lincolnshire Wolds to
Spits - deposition: scheme – increased erosio
Flamborough Head.
• Erosion and longshore drift have caused of Mappleton = positive fee
Pre-glacial coastline:
• Coastline has increased – sediment a recurved tip at Spurn Head • Sediment produced from e
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