Flashcards
Coasts
Flashcards do conjunto (13)
- 1SwashWater and materials moving up the
beach. - 2BackwashWater and materials moving
down the beach.
(Could be remembered "backwash-
moving back to the sea") - 3FetchThe distance a wave travels
- 4Constructive wavesBreak on the shore and deposit
materials building up beaches.
These waves are created in calm
weather and are less powerful than
Destructive waves - 5Destructive wavesCreated in stormy conditions these
waves occur when the wave energy
is high and has travelled a long fetch
(distance) and tend to corrode
the coast. - 6SpitIs an accumulation of sand with one
end attached to the land and the
other end reaching out across
an estuary or into the sea. - 7Sea wallAbsorbs wave energy so the cliff
foot is protected from erosion. - 8Cliff drainageReduces the risk of weathering and
mass movement to protect the cliff face
from falling. - 9Beach nourishmentExtra cement is dumped on the beach
to increase its size, a wider beach
will absorb more wave energy and
protect cliffs. - 10Rip rapBoulders are dumped at the foot of
a cliff allowing water though while
dissipating wave energy. - 11GabionsWire boxes filled with stones are
placed at the cliff foot to dissipate
wave energy. - 12Wooden groynesWooden fences are built out into
the sea, they stop longshore drift and
build up the beach (a wide beach
absorbs more wave energy). - 13Manage retreatThe sea wall is destroyed and they
knock it down and let the area be flooded.
Informações
- Descrição
- - Geography FlashCards sobre Coasts , criado por Chloe Haslam em 31-12-2016.
- Criado por
- Chloe Haslam
- Visualizações
- 10
- Avaliação