Long and short term influences on coastal recession

• what are the short term influences

  -winds and tides
• explain how short term variations in wind affects recession

  - onshore winds produces more powerful waves so increases recession

  - prevailing winds are the wind direction of the most common wind, often from direction of largest fetch
• explain how short term variations in tides affects recession

  -high tide increases recession as deeper water in foreshore zone increases wave power as less friction

  -spring tides increase this even more

  -although LT impact as global warming expected to increase sea levels which has the same effect
• how many times per day does high tide occur

  twice
• explain spring tides

  once in a lunar month

  extremely high tide
• explain how seasons impact recession

  -in the UK, storms are more common in winter due to very low air pressure (depressions)

  -LT impact of climate change as will increase frequency and intensity of storm events
• what causes depressions (low air pressure) in the UK during winter

  this is when there is the greatest difference in air pressure and temperature between polar regions (UK) and tropical
• impact of storms on recession

  very low pressure causes storms which created destructive waves