No Amount Of Coastal Intervention By People Can Halt The Natural Processes Which Continue To Present Potentially Serious Risks To Coastal Communities Now And Even More So In The Future Flashcards
Intro - what are the natural processes which operate along a coastline?
- erosion
- waves
- transportation
- wind
- LSD
What are the two types of coastlines?
High and low energy coastlines
What do high energy coastlines link with?
Destructive waves, more erosion etc
Why are natural processes presenting risks to the coastlines?KEY
Climate change - rising sea levels due to warming - increasing erosion rates - risk
What do people do to manage natural processes for risk?(Mappleton)
Coastal management - mappleton - groynes to trap natural process of LSD to reduce erosion rates
How effective were the groynes at mappleton?
Effective at mappleton but not effective further down the coast where erosion rates picked up - this presents serious risks
What is the Thames barrier?
A flood control system to stop the big city of London from flooding - protecting it from natural processes
What natural processes is Mappleton exposed to?
Boulder clay cliffs Strong waves Narrow beach Arctic fetch DW
What did Mappleton decide to do?
Hold the line policy
What was included in Mappletons hold the line policy?
2 rock groynes - trap sand
Rock revetments - counteract wave erosion
Regrading of cliffs
What are there early signs of at mappleton?(not effective)
Landslips in regraded cliffs and great cowden castle farm lost
What are erosion rates in Odisha?
36.8%
How many did a 1999 cyclone kill?
10,000
How many did a 2013 cyclone kill?
44
How much of London does the Thames Barrier protect?
125 square kilometres
