Coasts Flashcards
What does the ICZM stand for?
Integrated Coastal Zone Management
What is the ICZM?
It balances soft and hard engineering with coastal realignment to manage citizens’ and businesses’ long-term needs.
_ is a softer rock than chalk, so erodes more _.
Clay
quickly
Give 4 features of the UK climate that impact rates of coastal erosion and retreat.
- Storm frequency
- Seasonality
- Prevailing winds
- Rainfall
Give 3 features of destructive waves.
Tall & steep waves
Swash is less powerful than the backwash
Frequent
Name the main types of mass movement.
- Slides
- Slumps
- Rockfalls
Give 2 features of sand beaches.
- Flat & wide
- Gradual slope
What % of Dorset’s coast has been developed?
25%.
Is the south of Swanage Bay built up?
The south of Swanage Bay is built up as it is a residential & employment centre and a tourist resort with a wide sandy beach.
Is the north of Swanage Bay and the Foreland built up?
No - there are limestone cliffs.
What is Durston Bay a part of? What is this?
The World Heritage coast (an area recognised for its beauty, wildlife & heritage).
Compare the natural processes (2) and human actions that occur on Durlston Bay.
Natural processes: mass movement (landslides & rockfalls) and coastal erosion of its cliffs, which contain important fossil beds.
Human actions: minimal defences.
Compare the natural processes and human actions that occur on the south of Swanage Bay.
Natural processes: coastal erosion & deposition.
Human actions: sea defences (e.g. groynes and a sea wall) have been built to preserve the beach and protect the town.
Compare the natural processes and human actions that occur on the north of Swanage Bay to Ballard Point.
Natural processes: some erosion of the hard limestone cliffs.
Human actions: unprotected, despite having a range of important habitats.
In the past, how have humans affected the level of erosion on the Dorset coast?
Dredging the seabed for sand & gravel has led to increased erosion along the coast.
