The term coastal change describes the effects of the ongoing natural processes that shape the Jurassic Coast. These processes include the impact of wave action and weather on the coast which cause sediment and rocks to be eroded and washed away. The construction of sea defences such as groynes, rock armour or sea walls and the impact of sea level rise can dramatically influence the rate at which the coast changes.

Local geology also influences the rate of coastal change. On a ‘hard' coastline like the Jurassic Coast, change is usually sudden and dramatic, often triggered by harsh weather conditions when waves are powerful and water levels are high. Conversely, in areas where the coast is made up of softer rock, such as on the east coast of the UK, coastal change tends to be more rapid and consistent. 

Read More about the coastal change processes that have shaped the Jurassic Coast