Coastal management Flashcards
what is hard engineering?
man-made structures built to prevent erosion
describe the four main types of hard engineering :
1-sea wall
2-groynes
3-gabions
4-rock armour
1- stop water from getting past the wall and damaging anything behind the wall
2- stops long shore drift from moving around
3- rocks in a metal fence to absorb wave energy
4- rocks along the beach to absorb waves energy
what is soft engineering?
where the natural environment is used to help reduce coastal erosion and river flooding
describe the 3 main types of soft engineering
1-beach nourishment
2-beach re-profiling
3-dune regeneration
1- sand from the ocean floor shot and spread on a beach too re-fill it of sand
2- sand being moved to create a more natural looking beach (what it looked like before the erosion taken place)
3- plants placed to create sand dunes
what is managed retreat?
when the government or local council lets an area of land with little price and/or worth flood and/or be destroyed
why are some people in conflict over the management of coastlines?
as some people have different opinions about how their local coastlines/beach’s should be maintained or dealt with.
what are the issues on Blyth Coastline?
storms, waves and periods of bad weather have caused significant damage, stripping away much of the sand, significantly increasing the height between the promenade and the beach.
how is Blyth Coastline being managed?
with sea walls and groynes.