coast

Cards (30)

  • what is our example of a cave, arch, stack + stump
    selwicks bay
  • what is our example of a headland
    flamborough head
  • what is our example of a bay
    Bridlington bay
  • what is our example of a spit
    spurn head
  • hard engineering management stratergies
    1. gyrones
    2. sea wall
    3. rock armour
    4. gabions
  • sea wall advantages - hard engineering coast management
    • effective against erosion
    • long lasting
    • provides a walk way for ppl
  • sea wall disadvantages - hard engineering coast management
    • expensive - £5000
    • unnatural to look at
    • restricts acess
  • sea wall
    a curved concrete wall that reflects waves
  • rock armour advantages - hard engineering coast management
    • effective against erosion
    • can be used alongside a sea wall
    • more natural looking
  • rock armour disadvantages - hard engineering coast management
    • expensive
    • can restrict access
  • rock armour
    large rocks at the base of the cliff
  • gabions - advantages - hard engineering coast management
    • effective against erosion
    • can be used alongside sea walls
    • more natural then sea walls
  • gabions disadvantages - hard engineering coast management
    • expensive - maintenance
    • dangerous to wildlife
  • gabions
    rocks in wire mesh cages
  • groynes - advantages - hard engineering coast management
    • prevent longshore drift which can cause erosion
    • cheaper
    • long lasting
  • groynes - disadvantages hard engineering coast management
    • cause erosion elsewhere
    • maintenance
    • ugly
  • groynes
    wooden barriers built at right angles
  • beach nourishment advantages - soft engineering coast management
    • cheap
    • reduce erosion
    • natural
  • beach reprofiling advantages - soft engineering coast management
    • reduces erosion by reducing wave energy
    • cheap
    • simple
  • sand dune regeneration advantages - soft engineering coast management
    • creates a barrier from erosion
    • dunes absorb the waves energy
    • natural
  • managed retreat - advantages - soft engineering coast management
    • natural
    • salt marshes - good for wildlife
  • beach nourishment disadvantages - soft engineering coast management
    • constant maintenance
    • restrict access while work is done
    • taking sand from elsewhere
  • beach reprofiling disadvantages - soft engineering coast management
    • constant maintenance
    • restricts access while work is done
    • only useful where wave energy is low
  • sand dune regeneration disadvantages - soft engineering coast management
    • the vegetation takes ages to grow
  • manged retreat disadvantages - soft engineering coast management
    • ppls land + job lost
    • ppl may need to be compensated for the land lost
  • beach nourishment
    adding more sand to the beach
  • beach reprofiling
    making the beach steeper towards the land
  • sand dune regeneration

    building up sand dunes + vegetation
  • managed retreat

    allowing nature to take its course
  • Holderness coast - reasons for management
    • ↑ fetch= powerful waves = ↑ erosion
    • coastline made of boulder clay, soft rock ↑ erosion
    • saturated soil bc of ↑ rainfall + heavy buildings on the coastline → slumping