Coastal landscape

Cards (24)

  • Windfarms
    • There are remote large areas of cheap land available and away from large settlements to cause disruption
    • Open exposed high areas with strong winds make it ideal
  • Conflicts between tourists and farmers
    • Gates are left open which mean that animals can stray onto roads and be killed or cause accidents
    • Walkers/ wildcampers leave litter which looks unsightly and can kill animals
    • Noise and dogs can scare sheep/lambs
    • Crops/paths can be trampled on leaving bare soil which is washed away by rain
    • Erosion is also caused by bikers, horse riders, off road vehicles
    • Vandalism of property/machinery
    • Farmers can restrict access and hold up tourist vehicles
  • Cliff
    • Destructive waves attack the base of the cliff at high tide
    • Hydraulic action-the force of the waves compresses air in cracks causing rock to weaken and shatter
    • Abrasion- sand/pebbles are thrown at the coastline scraping off pieces of rock
    • Solution-chemicals in the seawater dissolve and weaken rocks
    • A wave cut notch is eroded at the base of the cliff which gets larger and deeper
    • The cliff face above the notch is left unsupported and it eventually collapses
    • The cliff face retreats inland and the process starts again
    • The gently sloping area of rock at the foot of the retreating cliff is the wave cut platform
  • Headland and Bays
    • When the coastline is made of different rock types at right angles to the shoreline, differential erosion occurs
    • The destructive waves will erode softer rocks(clays) more easily than hard resistant rocks (limestone)
    • Hydraulic action-the force of the waves compresses air in cracks causing rock to weaken and shatter
    • Abrasion- sand/pebbles are thrown at the coastline scraping off pieces of rock
    • Solution-chemicals in the seawater dissolve and weaken rocks
    • The soft rocks are eroded to form bays
    • Sand is deposited in the sheltered, low energy area of the bay to form a beach
    • The hard resistant rock sticks out into the sea as headlands
  • Stacks
    • Headlands which stick out into the sea are exposed to erosion from destructive waves
    • Waves erode the weakest parts of the headland-a joint,crack,fault which becomes larger, wider and deeper and forms a Cave
    • Hydraulic action-the force of the waves compresses air in cracks causing rock to weaken and shatter
    • Abrasion- sand/pebbles are thrown at the headland scraping off pieces of rock
    • Solution-chemicals in the seawater dissolve and weaken rocks
    • Waves erode the sides and back of the cave and eventually cut through to the other side of the headland to form an Arch
    • If there is a vertical weakness and strong hydraulic action you can get a blowhole
    • The arch is eroded and the arch roof becomes unstable and collapses
    • It leaves a pillar of rock separated from the headland. This is called a Stack
    • In time further wave action will result in the stack collapsing to leave a Stump
  • Spit
    • A spit forms when there is a large supply of sand/pebbles being moved along the coastline in a zigzag movement by the process of longshore drift
    • The swash picks up material moving it up the beach at a 45degree angle and the backwash takes material back down the beach
    • When the coastline changes direction at the entrance to a bay or river estuary, the sand/pebbles continue to be moved by longshore drift extending out into the open water
    • If the water is shallow and sheltered the sand/pebbles are deposited and build up to the level of the water
    • Overtime the spit grows out from the coastline
    • Behind the spit an area of stagnant water will form a lagoon where salt marsh develops
  • Sand Bar
    • A bar forms when there is a large supply of sand/pebbles being moved along the coastline in a zigzag movement by the process of longshore drift
    • The swash picks up material moving it up the beach at a 45degree angle and the backwash takes material back down the beach
    • When the coastline changes direction at the entrance to a bay or river estuary, the sand/pebbles continue to be moved by longshore drift extending out into the open water
    • If the water is shallow and sheltered the sand/pebbles are deposited and build up to the level of the water
    • Overtime the spit grows out from the coastline and if it joins to the other side it becomes a bar
    • Behind the spit an area of stagnant water will form a lagoon where salt marsh develops
  • Cliff (Flamborough Head, Yorkshire)
    • Destructive waves attack the base of the cliff at high tide
    • Hydraulic action - the force of the waves compresses air in cracks causing rock to weaken and shatter
    • Abrasion - sand/pebbles are thrown at the coastline scraping off pieces of rock
    • Solution - chemicals in the seawater dissolve and weaken rocks
    • A wave cut notch is eroded at the base of the cliff which gets larger and deeper
    • The cliff face above the notch is left unsupported and it eventually collapses
    • The cliff face retreats inland and the process starts again
    • The gently sloping area of rock at the foot of the retreating cliff is the wave cut platform
  • Headland and Bays (Swanage Bay)

    • When the coastline is made of different rock types at right angles to the shoreline, differential erosion occurs
    • The destructive waves will erode softer rocks (clays) more easily than hard resistant rocks (limestone)
    • Hydraulic action - the force of the waves compresses air in cracks causing rock to weaken and shatter
    • Abrasion - sand/pebbles are thrown at the coastline scraping off pieces of rock
    • Solution - chemicals in the seawater dissolve and weaken rocks
    • The soft rocks are eroded to form bays
    • Sand is deposited in the sheltered, low energy area of the bay to form a beach
    • The hard resistant rock sticks out into the sea as headlands
  • Stacks (Old Harry, Dorset)

    • Headlands which stick out into the sea are exposed to erosion from destructive waves
    • Waves erode the weakest parts of the headland - a joint, crack, fault which becomes larger, wider and deeper and forms a Cave
    • Hydraulic action - the force of the waves compresses air in cracks causing rock to weaken and shatter
    • Abrasion - sand/pebbles are thrown at the headland scraping off pieces of rock
    • Solution - chemicals in the seawater dissolve and weaken rocks
    • Waves erode the sides and back of the cave and eventually cut through to the other side of the headland to form an Arch
    • If there is a vertical weakness and strong hydraulic action you can get a blowhole
    • The arch is eroded and the arch roof becomes unstable and collapses
    • It leaves a pillar of rock separated from the headland, called a Stack
    • In time further wave action will result in the stack collapsing to leave a Stump
  • Spits (Studland Spit, Dorset)

    • A spit forms when there is a large supply of sand/pebbles being moved along the coastline in a zigzag movement by the process of longshore drift
    • The swash picks up material moving it up the beach at a 45 degree angle and the backwash takes material back down the beach
    • When the coastline changes direction at the entrance to a bay or river estuary, the sand/pebbles continue to be moved by longshore drift extending out into the open water
    • If the water is shallow and sheltered the sand/pebbles are deposited and build up to the level of the water
    • Overtime the spit grows out from the coastline
    • Behind the spit an area of stagnant water will form a lagoon where salt marsh develops
  • Sand Bars (Slapton Sands)

    • A bar forms when there is a large supply of sand/pebbles being moved along the coastline in a zigzag movement by the process of longshore drift
    • The swash picks up material moving it up the beach at a 45 degree angle and the backwash takes material back down the beach
    • When the coastline changes direction at the entrance to a bay or river estuary, the sand/pebbles continue to be moved by longshore drift extending out into the open water
    • If the water is shallow and sheltered the sand/pebbles are deposited and build up to the level of the water
    • Overtime the spit grows out from the coastline and if it joins to the other side it becomes a bar
    • Behind the spit an area of stagnant water will form a lagoon where salt marsh develops
  • Solutions for Tourist vs Farmers conflict
    • Signposts to stop trespassing and keep gates closed signs, Use of swing shut gates/stiles
    • National Trust protect/buy areas of land, maintain walls/footpaths. Stone steps are used to dam runoff
    • Distribution CountryCode leaflets to inform people how to behave responsibly
    • Visitor guides, information boards, visitor centres. National Park wardens patrol, fine inappropriate behaviour
    • Litter signs-fines. Voluntary litter picks. Designated picnic areas in popular areas to managed litter better
    • By-laws restrict camping/permit needed at peak times in certain areas
  • Solutions for Tourists vs renewable energy Windturbines
    • Strict planning laws on location of turbines
    • Consultation meetings -local community and conservationists to reduce disruption, creation nature reserves
    • Zoning (local bye laws) for different water users and speed restrictions Scottish Environmental Protection Agency SEPA also helps monitor pollution and water quality in the lochs
    • Screening of power stations and pipes with trees to blend in with the landscape
    • nature reserves to protect wildlife, protected areas monitored
  • Solutions for Tourists vs Military
    • Strict planning laws on location of military camps
    • Screen buildings with trees
    • Set times allowed for rifle range and tank transport
    • Warning flags and signs when military in training
  • Tourists vs Military
    -Closure of paths during military exercises
    -visual pollution of military buildings,
    -Rifle ranges cause noise pollution
    -slow moving tanks hold up tourist vehicles
  • Tourists vs renewable energy Windturbines
     Concern over the turbines looking unattractive-visual pollution
     Concerns over noise from the generators. Shadows scare birds
     Concern over disruption to wildlife and loss of trees/habitats during construction.
  • Tourists
    • Walk over farmland
    • Annoy farmers if they do not obey the country code
    • Leave gates open causing animals to stray onto roads
  • Farmers
    • Have their land/fields blocked by parked tourists
    • Affected by congestion on roads with slow moving farm traffic
  • Walkers/campers leave litter
    May kill animals if they try to eat it
  • Visitors bring pet dogs
    Can cause distress to sheep and lambs
  • Wildcamping on farmers land

    • Can lead to noise, fires and dumping camping equipment
  • People stray from the footpaths
    Trample on surrounding vegetation/crops until it dies, creating a path of bare soil which is easily washed away by rainstorms
  • Erosion
    Also caused by mountain bikers, horse riders and off road biking