Sea- Coastal Process

• Sea level refers to the average height of the ocean's surface around the world.
• Tides are caused by gravitational forces between the moon, sun, and Earth.
• Coastal erosion process


  1. Hydraulic action - force of the water crashing against the coastline

  2. Abrasion - rocks thrown at the coastline breaking off rocks

  3. Attrition - rocks crash and break each other up

  4. Air compression - air trapped expands and cracks rock

  5. Solution - acid in water dissolves rock
• Features/landforms of coastal erosion

  • Bays and headlands
  • Cliffs
  • Caves and blowholes
  • Arches, stacks and stumps