Processes
The process of storms, and harsh tides wearing down rocks on coasts
Coastal erosion
Name one solution to coastal erosion?
- Jetties
- Rockwalls
- Beach nourishment
- Groyne
- Coastal blanket
- Sand bagging
what percent of Australians live near the coast?
What man-made structure is increasing erosion at Stockton Beach?
The breakwalls
Whats the process of water moving from the beach back to the ocean
Backwash
Name one type of plant you could plant along the shore to slow down coastal erosion
- Spinifex
- Basket Grass
A sand covered coast, enjoyed by many in the summer, also the main victim of coastal erosion
The beach
Why is erosion occurring at Happisburgh?
Cliffs are very fragile, a layer-cake sequence of several glacial tills, separated by beds of stratified silt, clay and sand, which erodes quickly
The process of old sand moving to a new place
Deposition
Name one reason why coastal erosion is a problem.
Makes many lose housing, and costs millions of dollars a year
impacts landscapes and vegetation
impacts habitats
What world wonder was built by erosion (from water)?
The grand canyon
managed retreat
Two processes occur that continually change beaches?
Erosion And Deposition. Also backwash
Reduces the force/ power of the waves before they hit the coast
Explain the difference between destructive and construtive waves.
Destructive waves cause erosion of coastal landforms and are often associated with storm conditions. Constructive waves deposit sediments to form beaches and sand dunes and are associated with calm weather.
What coastal management solutions have been attempted at Stockton?
Sand replenishment
Seawalls
groynes
artificial reefs
Explain the process of longshore drift.
Longshore drift occurs when the ongoing swash and backwash moves in a sideways direction and moves material in a zig zag pattern along the coastline.
Name Three Coastal erosion Solutions
- Jetties
- Beach nourishment
- Groyne / artifical reef
- Sand blankets
-Vegetation
How many years did it take for erosion to make the grand canyon what it is
6 million years
How much is sand nourishment at Stockton Beach expected to cost?
between $5.2 and $14.5 million