Norfolk Coastline

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  • NORFOLK COASTLINE
    • What makes it distinctive?
      • Low-lying
      • Range of habitats
        • Salt-marshes
        • Expanse of Sand dunes.
      • Shallow gradient seabed= tide goes out a long way
        • Sand dries out and it is blown onshore
          • Expanse of Sand dunes.
      • underlying rock is chalk
        • Hidden by a layer of drift- laid down by advancing ice sheet.
          • Ice sheet created a ridge near Cromer- highest point of the county - 100m
    • Landscape character
      • Subdued relief
        • people can appreciate big skies
          • Growing tourism of night skies.
      • Flinty soils
      • Coastal road follows slightly higher land- lies inland from marshes.
      • Marshland- some near Holkham drained by Dutch.
        • Windy beach one of the world's best beaches- extensive sand dunes.
    • How does human activity effect geomorphic processes working on the coast
      • Villages sit on slightly higher land- avoid coastal flooding
        • 2013 flooding- Wells-next-the-sea and Blakeney
      • Blakeney Point- spits formed.  Boat activity popular for tourists- adds value and employment
        • Lifeboat get a lot of calls in summer when people get stranded in hidden hollows
      • Stiffkey- Saltmarsh developed- fine material trapped by specialist plants.  Rare
        • Good natural defence
      • Holkham- dunes planted with pines- stabalise.  Visitors encouraged ot use boardwalks than desirb marram grass and erode the dunes- lead to sand blowouts.
        • Manage seat front at Wells-next-the-sea- groynes to protect beach huts and gabion baskets- slow down transportation
      • Subject to erosion- whole villages wiped out in last century- Shipden, kewick, Wimpwell.
        • Happisborough has become quite well known- retreat.
        • Cley-nxt-the-sea- shingle ridges breached, large dunes stripped of sands.  Sea Walls, rip-rap at sheringham and Gabion boxes at Branchester.
      • Living Landscape- Cley-next-the-sea.
        • provides home for wilflife, protects single ridge which forms base of Blakeney Point.
          • A breach in this ridge could starve the spit of shingle and threaten its existence.
      • Sea Palling
        • protected- sea wall, offshore breakwaters have reduced intensity of wage action.
          • Reduction of transportation of sediment = wide beach
      • Happisbough
        • Increased rate of erosion- unrepaired broken sea defence.
        • Villages trying to claim compensation for damage to property.- threatened by receding coastline.
      • Sea Palling- protected by sea efence scheme.
        • Sea wall- reflect wave energy
        • Offshore breakwaters- reduce intensity of wave action- reduce in erosion.
        • Decrease in wave energy = reduction of sediment transportation = wide beach

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