Level 3 Geography Flashcards
(30 cards)
revetment
large rocks to stop foredune eroding
renourishment
dropping of sand to replenish sand from beach.
foredune
hill of sand closest to the water/sea.
wind
the movement of air from high to low air pressure.
waves
movement of air within water that causes rises and fall in water level.
Tides
The movement of water up and down the beach due to the pull of the moon.
Fetch
The distance wind blows across water without touching land.
current
A river of sand in the sea
geology
The type of rocks and soil in an area.
constructive waves
Summer waves that build up the beach.
destructive waves
Big winter waves that wash away sand.
coastal erosion
taking away sand and soil from the beach.
Coastal deposition
Building up/dropping of sand on the beach.
Long shore drift/Littoral drift
movement along the beach in a zig zag pattern in the surf zone.
Groyne
A wall built at right angles to the beach to capture long shore drift.
Gabion
A wire package of large stones used tostabilize the foredunes.
Maaram grass/pingau
spiky grasses that are planted on the foredune to capture sand and help fix erosion on beaches.
sea wall
A permanent structure to protect beach front houses from big waves.
equilibrium beach
The idea that beaches will erode and deposit but over time they will go back to what they were like.
Spit
A narrow strip of sand joined at one end to the beach
Sand bar
A collection of sand out in the sea after winter that is pushed back onto the beach.
cuspate
A wide semi circular area of sand that is collected when the beach is sheltered from big waves.
cliff
A steep bank made of rock.
Channel
A fast moving body of water between 2 areas of land.
