holderness

  • Created by: laura011
  • Created on: 24-03-19 11:33
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  • morphology
    • discordant coast
      • boulder clay - rest of cliff
      • chalk - flamborogh head
    • Geology
      • boulder clay - porous and permeable
        • deposition from melting glaciers
      • Holderness Coast
        • Coastal landforms
          • headland - flamborough head
          • bay - mappleton/ hornsea
          • spit - spurn head
        • Coastal erosion
          • sub-arieal
            • freeze-thaw
            • wetting and drying - boulder clay (expand when wet and contract when dry causing them to break)
            • chemical weathering - ineffective as only works on chalk (flaborough head)
        • fastest eroding coastline in EU
    • shallow sloping cliff
  • Coastal erosion
    • sub-arieal
      • freeze-thaw
      • wetting and drying - boulder clay (expand when wet and contract when dry causing them to break)
      • chemical weathering - ineffective as only works on chalk (flaborough head)
  • mass movment
    • slumping (boulder clay) - sub-arieal produces cracks.
      • rain percolates cliff making it heavier and lubricated
        • weakened cliff cant hold extra weight and slides
          • slumped material collects at cliff base, removed by sea, cliff libe retreates
  • slumping (boulder clay) - sub-arieal produces cracks.
    • rain percolates cliff making it heavier and lubricated
      • weakened cliff cant hold extra weight and slides
        • slumped material collects at cliff base, removed by sea, cliff libe retreates
  • low pressure weather systems pass over North Sea - strong winds,waves,high tides
    • exposed to winds and waves from NE
      • small fetch 500-800km high energy
  • sea floor - deep
    • waves reach cliffs without being weakened by friction of shallow beaches
    • exposed to winds and waves from NE
      • small fetch 500-800km high energy
  • Stakeholders
    • local economy stakeholders
      • tourist industry, farmers, residents want coastal protection.
        • insurence agencies increasingly refusing to ensure properties
    • central and locals gov
      • responsible for coastal management-budget cut
  • enviromental stakeholders
    • English Nature want to protect spurn head
    • Stakeholders
      • local economy stakeholders
        • tourist industry, farmers, residents want coastal protection.
          • insurence agencies increasingly refusing to ensure properties
      • central and locals gov
        • responsible for coastal management-budget cut
  • Hornsea
    • sea wall, rock armour
    • Coastal management
      • Holderness Coast
        • Coastal landforms
          • headland - flamborough head
          • bay - mappleton/ hornsea
          • spit - spurn head
        • fastest eroding coastline in EU
  • Mappleton - starved of material and cliffs are exposed
    • terminal groyne syndrome
    • interrupt flow of beach material by longshore drift
      • Hornsea
        • sea wall, rock armour
        • Coastal management
    • economic/ social losses
      • 200 homes will be lost in the next 80 yrs
      • East riding coastal change fund
        • offers help to those affected
          • relocation and adaptation packages
        • Defra - gov department funded
    • East riding coastal change fund
      • offers help to those affected
        • relocation and adaptation packages
      • Defra - gov department funded

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