Geography

Description

Coastal Zone
Ellen O'Rourke
Mind Map by Ellen O'Rourke, updated more than 1 year ago
Ellen O'Rourke
Created by Ellen O'Rourke almost 9 years ago
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Resource summary

Geography
  1. Destructive Waves
    1. Taking material away from a beach
    2. Constructive Waves
      1. Builds up a beach
      2. Swash
        1. Movement of a wave up a beach
        2. Fetch
          1. The distance that a wave has moved
          2. Abrasion
            1. Sea uses sand or pebbles to erode cliffs
            2. Corrosion
              1. Chemicals in seawater wear away cliffs
              2. Hydraulic Action
                1. Water replacing air in cliffs
                2. Traction
                  1. Rolling of Large boulders along seabed
                  2. Saltation
                    1. Material being bounced along the seabed
                    2. Suspention
                      1. Small particles carried in water
                      2. Solution
                        1. Chemicals carried in water, invisible
                        2. Spit
                          1. A bank of shingle or sand washed alone the coastline by long shore drift
                          2. Tombolo
                            1. A bar of shingle or sand that joins an island to the mainland
                            2. Lagoon/Saltmarsh
                              1. An area behind a spit where there is slack water
                              2. Sand Dunes
                                1. Wind blown sands
                                2. Hard Engineering
                                  1. Sea Walls, concrete groins, gabions, igneous rock armour etc
                                  2. Soft Engineering
                                    1. Sand replenishment, shingle, curved sea wall e.g. Marine Parade
                                    2. Managed Retreat
                                      1. "Do nothing" approach, allow sea to flood areas etc
                                      2. Percelation
                                        1. Water sinks into soil and rock
                                        2. Evaporation
                                          1. Water taken up into the atmosphere
                                          2. Transpiration
                                            1. Water taken up into atmosphere directly from surface of vegetation
                                            2. Peak Discharge
                                              1. River is carrying max water
                                              2. Lag time
                                                1. Number of hours between heaviest rain and peak discharge
                                                2. Rising/Falling Limb
                                                  1. Period during river is rising/falling
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